Alesis Car Speaker QuadraSynth Plus User Manual

ALESIS  
QuadraSynth Plus  
Reference Manual  
Index  
CONTENTS  
1: Setting Up 7  
Unpacking and Inspection  
7
AC Power  
Line Conditioners and Protectors  
7
8
About Audio Cables  
Basic Audio Hookup  
9
9
A Word About Sound Bridge 10  
2: Your First Session With The QuadraSynth Plus 11  
Powering Up 11  
Adjusting the Display Contrast 11  
Playing the Demo Sequence  
12  
Enabling General MIDI Mode 12  
Playing the QuadraSynth Plus 13  
Program Mode and Mix Mode 13  
Auditioning Internal Programs 14  
Selecting Banks 14  
Selecting the MIDI Channel  
Realtime Performance Functions  
14  
15  
The Quad Knobs  
Auditioning Mix Play Mode  
15  
16  
Selecting Banks 16  
Editing a Mix 17  
Setting the Effects Level 18  
3: Connections  
Basic MIDI Hookup  
19  
19  
Example 1: Master Controller for Live Use  
Example 2: Using an External Sequencer21  
20  
About the Keyboard Mode  
22  
Pedal and Footswitch Hookup 22  
Digital Audio/Optical Hookup 23  
Recording Digital Audio  
48 kHz Clock In23  
23  
4: Overview 25  
Basic Architecture  
25  
QuadraSynth Plus Polyphony 25  
Modes 26  
Program Play Mode  
Mix Play Mode 26  
Program Edit Mode  
Mix Edit Mode 27  
Effects Edit Mode  
Global Edit Mode  
26  
26  
27  
27  
Store Mode  
Compare Mode 27  
The User Interface: Display, Functions, Pages, and Parameters 28  
27  
About the Display  
MIDI Buttons 29  
Quad Knob Editing  
28  
29  
QuadraSynth Plus Piano Reference Manual  
5
Index  
Parameter Editing  
29  
Direct Function Selection  
Editing Program Parameters  
Edit 4 and Edit 1 Modes32  
Resetting a Parameter Value  
31  
31  
32  
Comparing Edited and Stored Versions 33  
Preset Memory and User Memory  
33  
Storing 34  
Store a Program34  
Copying Effects Between Programs  
Store an Effect 35  
35  
Store a Mix  
35  
To Audition Programs Before Storing 36  
5: Editing Mixes  
What is a Mix? 39  
Mix Edit Mode 39  
39  
Understanding the Edit Buffers 40  
Program Assign for each MIDI Channel 41  
Level Setting for Each Program 41  
Pitch 42  
Setting the Range and MIDI Switches 42  
Transmitting MIDI Volume and Panning  
43  
Effects in Mix Play Mode  
44  
Effect Level  
44  
Effect 44  
Naming a Mix 45  
Polyphony in Mix Play Mode 45  
Using the QuadraSynth Plus as a Master Keyboard  
Setting MIDI Out Channels for Mix in Global Mode  
6: Editing Programs 47  
45  
46  
Overview  
47  
The “Normalized” Synth Voice 47  
How the QuadraSynth Generates Sound48  
Program Sound Layers 48  
QuadraSynth Plus Signal Flow 49  
The Four Sounds of a Program 49  
Voice 50  
Lowpass Filter 50  
Amp 51  
About Modulation  
Envelopes 52  
About Signal Processing52  
Drum Mode 53  
51  
Program Edit Functions 54  
Assign Voice 54  
Level 56  
Effect Level  
Pitch 56  
Filter 59  
Amp 61  
Range 62  
56  
QuadraSynth Plus Piano Reference Manual  
6
Index  
Mod 64  
Pitch LFO  
Amp LFO  
67  
70  
Pitch Envelope 71  
Filter Envelope 74  
Amp Envelope 76  
Name 80  
Misc. 81  
Programming Drum Sounds  
Assign Voice 82  
Level 82  
82  
Effects Level  
Pitch 83  
Filter 83  
Amp 83  
Range 84  
83  
Amp Envelope 84  
Copying Sounds  
Copying Effects85  
85  
Initializing Programs 86  
7: Editing Effects  
87  
About Signal Processing87  
Selecting an Effects Patch in Mix Mode 88  
Setting Effects Send Levels  
88  
Editing Effects 89  
Storing Effect Patches In Program Mode 90  
Storing Effect Patches in Mix Mode  
Copying Effect Patches 91  
Configurations 91  
Reverb 98  
90  
Delay 103  
Pitch 104  
Mod 108  
Mix  
Misc. 110  
EQ 110  
Overdrive  
109  
110  
8: Global Settings  
Editing Global Parameters  
LCD Contrast 113  
113  
113  
General MIDI Mode  
113  
Enabling General MIDI Mode via MIDI 113  
Master Pitch and Master Tuning114  
Keyboard Sensitivity 114  
Keyboard Curve  
114  
114  
Keyboard Transpose  
Keyboard Mode114  
Controllers A – D  
115  
Reset Controllers A – D 115  
Controllers A – D Mode 115  
Pedal 1 and 2 Assignment  
116  
QuadraSynth Plus Piano Reference Manual  
7
Index  
Using Pedals to Control Volume or Modulation 116  
MIDI Program Select 116  
Receiving and Transmitting Bank Change Message  
117  
Edit Mode  
48 KHz Clock Input  
118  
118  
9: MIDI Transfer And Storage Operations 119  
Saving the User Bank to an External Card  
Loading a Bank from an External Card 119  
Storing an Individual Program or Mix to an External Card  
Loading an Individual Program or Mix from an External Card 120  
Card Storage RAMifications 121  
119  
120  
Saving Programs via MIDI Sys Ex  
121  
Appendix A: Trouble-Shooting  
Trouble-Shooting Index 123  
Re-initializing 123  
123  
Checking Software Version  
Maintenance/Service 124  
124  
Cleaning  
124  
Maintenance 124  
Warranty Information 124  
Obtaining Repair Service  
124  
Appendix B: MIDI Supplement  
127  
MIDI Basics  
127  
MIDI Hardware127  
MIDI Message Basics 128  
Channel Messages: Mode Messages  
Channel Messages: Voice Messages  
128  
128  
System Common Messages  
General MIDI 130  
MIDI Implementation Chart  
130  
132  
Appendix C: Parameters Index  
Program Parameters  
Mix Parameters 135  
133  
133  
Appendix D: What’s New in the 2.0 “Plus” Upgrade  
INDEX 159  
137  
QuadraSynth Plus Piano Reference Manual  
8
Setting Up: Chapter 1  
CHAPTER 1  
SETTING UP  
Unpacking and Inspection  
Your QuadraSynth Plus was packed carefully at the factory. The shipping carton  
was designed to protect the unit during shipping. Please retain this container in  
the highly unlikely event that you need to return the QuadraSynth Plus for  
servicing.  
Upon receiving the QuadraSynth Plus, carefully examine the shipping carton  
and its contents for any sign of physical damage that may have occurred in  
transit. If you detect any damage, do not destroy any of the packing material or  
the carton, and immediately notify the carrier of a possible claim for damage.  
Damage claims must be made by you. Contact your Alesis dealer.  
The shipping carton should contain the following items:  
QuadraSynth Plus with the same serial number as shown on shipping  
carton  
Sustain pedal  
AC Power Cable  
Computer floppy disk containing Sound Bridge software and electronic  
manual  
This instruction manual, plus lists of Mixes and Programs, and Quick  
Start guide  
Alesis warranty card  
J
It is important to register your purchase; if you have not already filled out your warranty  
card and mailed it back to Alesis, please take the time to do so now.  
AC Power Hookup  
The QuadraSynth Plus works with the voltage of the country it is shipped to  
(either 110 or 220V, 50 or 60 Hz), and comes with a line cord or power supply  
suitable for the destination to which the keyboard is shipped.  
With the QuadraSynth Plus off, plug the AC cord’s female (jack) end into  
Quadra-Synth Plus’s AC socket and the male (plug) end into a source of AC  
power. It’s good practice to not turn the QuadraSynth Plus on until all other  
cables are hooked up.  
The IEC-spec AC cord included with the QuadraSynth Plus (do not substitute  
any other AC cord) is designed to connect to an outlet that includes three pins,  
with the third, round pin connected to ground. The ground connection is an  
important safety feature designed to keep the chassis of electronic devices such  
as the QuadraSynth Plus at ground potential. Unfortunately, the presence of a  
third pin does not always indicate that it is properly grounded. Use an AC line  
QuadraSynth Plus Piano Reference Manual  
9
Setting Up: Chapter 1  
tester to determine this. If the outlet is not grounded, consult with a licensed  
electrician.  
J
Do not operate any electrical equipment with ungrounded outlets. Plugging the  
QuadraSynth Plus into an ungrounded outlet, or “lifting” the unit off ground with a  
three-to-two wire adapter, can create a hazardous condition.  
J
Alesis cannot be responsible for problems caused by using the QuadraSynth Plus or any  
associated equipment with improper AC wiring.  
Line Conditioners and Protectors  
Although the QuadraSynth Plus is designed to tolerate typical voltage  
variations, in today’s world the voltage coming from the AC line may  
contain spikes or transients that can possibly stress your gear and, over  
time, cause a failure. There are three main ways to protect against this,  
listed in ascending order of cost and complexity:  
Line spike/surge protectors. Relatively inexpensive, these are  
designed to protect against strong surges and spikes, acting somewhat  
like fuses in that they need to be replaced if they’ve been hit by an  
extremely strong spike.  
Line filters. These generally combine spike/surge protection  
with filters that remove some line noise (dimmer hash, transients from  
other appliances, etc.).  
Uninterruptible power supply (UPS). This is the most  
sophisticated option. A UPS provides power even if the AC power line  
fails completely. Intended for computer applications, a UPS allows you  
to complete an orderly shutdown of a computer system in the event of a  
power outage, and the isolation it provides from the power line  
minimizes all forms of interference—spikes, noise, etc.  
QuadraSynth Plus Piano Reference Manual  
10  
Setting Up: Chapter 1  
QuadraSynth Plus Piano Reference Manual  
11  
Setting Up: Chapter 1  
About Audio Cables  
The connections between the QuadraSynth Plus and your studio are your  
music’s lifeline, so use only high quality cables. These should be low-capacitance  
shielded cables with a stranded (not solid) internal conductor and a low-  
resistance shield. Although quality cables cost more, they do make a difference.  
Route cables to the QuadraSynth Plus correctly by observing the following  
precautions:  
Do not bundle audio cables with AC power cords.  
Avoid running audio cables near sources of electromagnetic interference  
such as transformers, monitors, computers, etc.  
Do not place cables where they can be stepped on. Stepping on a cable  
may not cause immediate damage, but it can compress the insulation between  
the center conductor and shield (degrading performance) or reduce the cable’s  
reliability.  
Avoid twisting the cable or having it make sharp, right angle turns.  
Never unplug a cable by pulling on the wire itself. Always unplug by  
firmly grasping the body of the plug and pulling directly outward.  
Although Alesis does not endorse any specific product, chemicals such  
as Tweek and Cramolin, when applied to electrical connectors, are claimed to  
improve the electrical contact between connectors.  
Basic Audio Hookup  
J
When connecting audio cables and/or turning power on and off, make sure that all  
devices in your system are turned off and the volume controls are turned down.  
Because the QuadraSynth Plus includes extensive signal processing as well as a  
full complement of sounds, you can make great sounds with nothing more than  
an amplifier or a set of headphones.  
The QuadraSynth Plus has two Main and two Aux audio outputs. These can  
provide an amplification system or mixer with several different audio hookup  
options:  
Mono. Connect a mono cord from the [MAIN–R] Audio Output to a  
mono amplification system or individual mixer input.  
Stereo. Connect two mono cords from the [MAIN–L] and [MAIN–R]  
Audio Outputs to a stereo amplification system or two mixer inputs.  
Dual Stereo/Four Individual Outs. Connect two mono cords from the  
[MAIN–L] and [MAIN–R] Audio Outputs and two mono cords from the [AUX–  
QuadraSynth Plus Piano Reference Manual  
12  
Setting Up: Chapter 1  
L] and [AUX–R] Outputs to a dual stereo amplification system, or four mixer  
inputs.  
Stereo Headphones. Plug a set of high-quality stereo headphones into  
the rear panel [PHONES] jack.  
QuadraSynth Plus Piano Reference Manual  
13  
Setting Up: Chapter 1  
A Word About Sound Bridge  
Included with the QuadraSynth Plus is a 3-1/2" floppy disk containing a  
software program called Sound Bridge. This software has been provided free of  
charge in an effort to promote sound design for the QuadraSynth Plus.  
Sound Bridge is a Macintosh™ sound development utility which compiles  
custom samples from a variety of sources into the QuadraSynth Voice format,  
and downloads the compiled data to an Alesis PCMCIA Sound Card via MIDI  
Sysex to a QuadraSynth Plus or S4 Plus. Originally developed for in-house use  
only, Alesis soon realized the need for individuals and sound developers to be  
able to burn their own Sound Cards as well, using whatever samples they  
wanted. Sound Bridge makes this possible without having a PCMCIA card  
burner attached to your computer. All you need is a QuadraSynth Plus or S4  
Plus.  
Sound Bridge creates a QuadraSynth Voice (multi-sample) by loading Sample  
Cell I or Sample Cell II format Instrument files. Using this format, Sound Bridge  
is able to determine key group and velocity group split points, root notes, sample  
playback rates, tunings, start points, loop points, and loop tunings. Sound Bridge  
can also create QuadraSynth Voices without Sample Cell Instruments by loading  
single AIFF, Sound Designer, or Sound Designer II files.  
Sound Bridge does NOT require Sample Cell hardware. The Sample Cell  
Instrument file, or sample file, may be loaded directly into Sound Bridge from  
any disk (i.e. CD-ROM, floppy disk, hard disk, etc.). For example, a user may  
load data from a Sample Cell CD-ROM, and send this data to the QuadraSynth  
PCMCIA Card, without ever using Sample Cell!  
Sound Bridge can write to PCMCIA cards (or PC Cards) of up to 8MB in size.  
These cards must be either Type I SRAM (150ns or faster) or Type I Flash RAM  
cards (AMD C-series or D-series 5V Flash Memory Cards). If you are unsure  
whether a card is compatible with the S4 Plus, contact Alesis Product Support for  
more information.  
The Sound Bridge disk contains the Sound Bridge application, and an electronic  
manual which will give you all the information you need to know to run Sound  
Bridge.  
QuadraSynth Plus Piano Reference Manual  
14  
Your First Session With The QuadraSynth Plus: Chapter 2  
CHAPTER 2  
YOUR FIRST SESSION WITH  
THE QUADRASYNTH PLUS  
Powering Up  
After making your connections, turn on the system’s power using this procedure:  
¿
Before turning on the QuadraSynth Plus’s power, check the following  
items:  
Have all connections been made correctly?  
Are the volume controls of the amplifier or mixer turned down?  
Is the volume of the QuadraSynth Plus turned down?  
¡
Turn on the [ON/OFF] (power) switch on the QuadraSynth Plus rear  
panel.  
Upon power-up, the QuadraSynth Plus will display the last selected Program or Mix. If  
this Program/Mix has been edited, the display will indicate this by showing the word  
EDITED” below either the word “MIX” or “PROGRAM.”  
¬
Turn the QuadraSynth Plus’s master [VOLUME] control to maximum.  
The best signal-to-noise ratio is achieved when [VOLUME] is set to maximum. This is a  
digital volume control, and lower settings have lower resolution.  
Turn on the power of the amplifier/mixer, and adjust the volume.  
Adjusting the Display Contrast  
Occasionally, the characters in the LCD display may be difficult to read,  
depending on the viewing angle and existing lighting conditions. In such  
a situation, adjust the contrast of the LCD display using the following  
procedure.  
¿
Press [GLOBAL].  
The display will change to the Global Page.  
¡
Use Quad Knob [1] to adjust the contrast, or use the VALUE [Ø]  
and [` ] buttons.  
The contrast and its value in the display will change.  
QuadraSynth Plus Piano Reference Manual  
15  
Your First Session With The QuadraSynth Plus: Chapter 2  
1
P
R
O
G
G
L
O
B
A
L
P
A
G
E
:
1
2
3
4
5
6
7
1
V
ALUE  
QuadraSynth Plus Piano Reference Manual  
16  
Your First Session With The QuadraSynth Plus: Chapter 2  
Playing the Demo Sequence  
The QuadraSynth Plus has a built-in demo sequence which demonstrates  
the wide variety of sounds this amazing instrument is capable of  
generating. In order to get the full effect of the demo, we recommend  
that you connect both the LEFT and RIGHT outputs to your sound  
system, or listen on headphones.  
To play the demo sequence:  
¿
Hold the [GLOBAL] button, and press [MIX].  
The upper-right display will read “Playing Demo. Press MIX to stop.”  
¡
Press [MIX] to stop the demo.  
There will be no MIDI OUT messages during the demo, and the  
keyboard will be disabled.  
Playing Specific Sections of the Demo  
The demo sequence is currently comprised of four sections. Any  
of these sections can be played directly, without listening to the  
sections preceding it. This can be done by holding [GLOBAL]  
and pressing one of the Quad Buttons [1] – [4] buttons which  
corresponds to the section you would like to hear.  
Enabling General MIDI Mode  
If you are using a General MIDI sequencer, and/or playing a sequence that is  
programmed to take advantage of General MIDI, turn the “General MIDI”  
function in the QuadraSynth on.  
To turn the General MIDI function on:  
¿
Press [GLOBAL].  
The display will now be in Global Edit Mode.  
¡
Press Quad Button [2].  
This selects the General MIDI parameter in the display.  
¬
Press the VALUE [` ] button.  
This turns on General MIDI mode, and automatically puts you into Mix Play Mode with  
Mix 00 of Preset Bank 4 selected.  
For more information about General MIDI, refer to the the MIDI Supplement in  
Appendix B.  
QuadraSynth Plus Piano Reference Manual  
17  
Your First Session With The QuadraSynth Plus: Chapter 2  
Playing the QuadraSynth Plus  
The QuadraSynth Plus is shipped from the factory with 5 Banks of 128 Preset  
Programs (sounds) each. Additionally, there are 100 Mixes in each of the 5 Banks.  
Program Mode and Mix Mode  
The QuadraSynth Plus is always in one of two modes: Program Mode or  
Mix Mode. When selecting Programs, you will be in Program Play Mode.  
When editing a Program, you will use Program Edit Mode. When  
auditioning Mixes, you will be in Mix Play Mode. When editing a Mix,  
you will use Mix Edit Mode.  
J
If you ever get lost while programming the QuadraSynth Plus, press either the  
[PROGRAM] button or the [MIX] button to get back to their respective play  
modes.  
Press the [PROGRAM] button to select Program Play Mode.  
In Program Play Mode, the QuadraSynth Plus plays a single Program.  
The display will look like this:  
1
P
ROG  
The current PROGram number is displayed, and the Program’s name  
appears in the top-right. The current Bank is shown to the left of the  
Program name. The current MIDI channel is shown in the top left corner  
left.  
Press the [MIX] button to select Mix Play Mode.  
In Mix Play Mode, the QuadraSynth Plus can combine up to 16  
Programs for stacking sounds together, splitting the keyboard into  
different regions, or working with a MIDI sequencer. The display will  
look like this:  
QuadraSynth Plus Piano Reference Manual  
18  
Your First Session With The QuadraSynth Plus: Chapter 2  
1
2
3
4
M
I
X
P
ROG  
E
EF  
F
F
F
E
EC  
C
T
T
All MIDI channels that are active in the current Mix are shown at the top  
left, to indicate multitimbral operation. The current MIX and EFFECT  
numbers are displayed, along with the current Bank and Mix’s name.  
The PROGram number display shows the program assigned to the  
underlined MIDI channel.  
QuadraSynth Plus Piano Reference Manual  
19  
Your First Session With The QuadraSynth Plus: Chapter 2  
Auditioning Internal Programs  
¿
Press the [PROGRAM] button to select Program Play Mode.  
You can now play the QuadraSynth Plus keyboard; the Program will be  
whatever was selected when last in Program mode (Program number 00 —  
127).  
¡
Select a Program using any of these methods:  
Use the [-1] and [+1] buttons to step through the Programs one  
at a time.  
Use the [-10] and [+10] buttons to step through the Programs ten  
at a time.  
Hold the [PROGRAM] button and rotate Quad Knob [1].  
Use the DIRECT SELECT [1]—[0] buttons for direct entry.  
Leading zeroes must be entered for Programs 0 — 19. Example: Press [0] then  
[0] then [5] for Program 5; press [0] then [1] then [3] for Program 13. Only  
begin with [1] if you are selecting a Program from 100 — 127. If you start  
entering a number and change your mind, wait a few seconds and the  
QuadraSynth Plus will revert to the previous Program number.  
J
To hear the Stereo Grand Piano, select Program 00 in Preset Bank 1.  
Selecting Banks  
The QuadraSynth Plus provides five internal Banks containing 128  
Programs in each (and 100 Mixes each, but we’ll get to Mixes in a  
moment). The currently selected Bank will be shown in the display just  
to the left of the currently selected Program’s name.  
Use the BANK [¨ ] and [Æ] buttons to select a Bank (User, Preset  
1 – 4).  
J
User and Preset Banks are described in detail in Chapter 4.  
Selecting the MIDI Channel  
While in Program Play Mode, the QuadraSynth Plus can transmit and  
receive information on any single MIDI channel of the 16 available  
channels. The currently selected channel appears at the top left of the  
display.  
QuadraSynth Plus Piano Reference Manual  
20  
Your First Session With The QuadraSynth Plus: Chapter 2  
MM  
II  
D
DI  
I
1
P
ROG  
¿
Use the MIDI [¨ ] and [Æ] buttons to select a MIDI channel from  
1 — 16.  
The display will change to indicate the currently selected MIDI channel.  
QuadraSynth Plus Piano Reference Manual  
21  
Your First Session With The QuadraSynth Plus: Chapter 2  
Realtime Performance Functions  
The QuadraSynth Plus provides various ways to control the sound as  
you are playing. Try out some of these functions while playing the  
keyboard. The sound of the effects can also change by using these  
controllers. The effect of these realtime controllers varies from Program  
to Program; in some they may not be active, and in others they may have  
a dramatic effect.  
Velocity. The volume and tonal quality of the sound will change  
according to how hard you play the keyboard.  
Aftertouch. The action of pressing a key down after playing it is  
called “aftertouch” (it is also sometimes referred to as “Pressure” since it  
corresponds to the amount of pressure being applied to the keyboard).  
Pitch, tone and volume (among other things) can be changed using  
aftertouch.  
Pitch Bend Wheel. While playing a note, you can move the  
PITCH BEND WHEEL up to raise the pitch, or down to lower the pitch.  
The amount of pitch bend available can be different for each Program.  
Modulation Wheel. By raising the MODULATION WHEEL,  
you can add expressive modulation effects (such as vibrato or tremolo)  
while you play. The type of modulation effect can be different for each  
Program.  
The Quad Knobs. These are described below.  
Further expressive control is available with a pedal switch (included) or  
expression pedal (optional, see page 25). By connecting a pedal switch to  
the SUSTAIN jack on the rear panel, you can have the sound sustain  
even after you release the keys. By connecting an expression pedal to one  
of the pedal jacks (PEDAL 1 or PEDAL 2), you can use the pedal to  
change the volume or tone (or some other quality such as reverb depth  
or vibrato speed) of the sound, if the Program is edited to use the  
pedal(s).  
The Quad Knobs  
To the right of the display are four knobs referred to as Quad Knobs,  
[1]—[4], each with its own button. The Quad Knobs provide control over  
various parameters depending on the mode you are in. The parameters  
in the display will change depending on which function and page are  
selected. Not all four Quad Knobs are active in all windows; there are  
many pages that have only one active Quad Knob.  
In Program Play Mode and Mix Play Mode, the Quad Knobs act as  
Controllers A–D. These Controllers are defined in Global Edit Mode  
(Page 3) to transmit various MIDI controller messages. If a Program or  
Mix uses these Controllers A–D, a pair of arrows will point towards the  
active controller’s letter in the display. This indicates that moving the  
related Quad Knob will have some kind of effect on the selected Program  
or Mix. In the illustration below, Controller A (Quad Knob [1]) is used by  
the selected Program.  
QuadraSynth Plus Piano Reference Manual  
22  
Your First Session With The QuadraSynth Plus: Chapter 2  
1
2
3
4
When in Program Edit Mode or Mix Edit , the Quad Knobs are linked to  
the parameters that appear in the right side of the display. The lower line  
of the alphanumeric display will show the abbreviated name of each  
parameter, with a bar graph below it representing the current setting of  
the parameter. By turning Quad Knob [1], you adjust the setting of the  
first parameter on the left. Turning Quad Knob [2] adjusts the next  
parameter, and so on. Once a Quad Knob has been turned, or its button  
has been pressed, the top line of the display will immediately show the  
parameter’s name and current setting. At this point, the parameter will  
have a thick underline beneath its bargraph, indicating that you can now  
use the VALUE [Ø] and [` ] buttons to adjust the parameter’s setting.  
Auditioning Mix Play Mode  
Mix Play Mode allows you to assign a Program to each of the 16 MIDI  
channels. This makes it easy to create multitimbral setups for use with an  
external MIDI sequencer. Additionally, a MIX can be used to “layer”  
sounds together, or “split” the keyboard in a number of ways, or any  
combination of these. There are many different ways to program a Mix.  
For more about Mix Play Mode, refer to Chapter 5. For more about  
connecting the QuadraSynth Plus to a MIDI sequencer, see Chapter 3.  
¿
Press the [MIX] button.  
The display will change to Mix Play Mode.  
¡
Select a Mix from 00—99 using one of these methods:  
Use the [-1] and [+1] buttons to step through the Mixes one at a  
time.  
Use the [-10] and [+10] buttons to step through the Mixes ten at a  
time.  
Hold the [MIX] button and rotate Quad Knob [1].  
Use the DIRECT SELECT [1]—[0] buttons for direct entry.  
Leading zeroes must be entered for Mixes 0 — 9. Example: Press [0] then [5] for  
Mix 5. If you start entering a number and change your mind, wait a few  
seconds and the QuadraSynth Plus will revert to the previous Mix number.  
Selecting Banks  
QuadraSynth Plus Piano Reference Manual  
23  
Your First Session With The QuadraSynth Plus: Chapter 2  
The QuadraSynth Plus provides five internal Banks containing 100 Mixes  
in each. The currently selected Bank will be shown in the display just to  
the left of the currently selected Mix’s name.  
Use the BANK [¨ ] and [Æ] buttons to select a Bank (User, Preset  
1 – 4).  
J
After switching between the Preset and User banks, press Quad Button [1] to  
see the name of the Mix in the display again.  
User memory and Preset memory are described in detail in Chapter 4.  
QuadraSynth Plus Piano Reference Manual  
24  
Your First Session With The QuadraSynth Plus: Chapter 2  
Editing a Mix  
In this section, we will assign Programs to and set volume levels for the  
16 MIDI channels in a Mix, for playing back tracks from a MIDI  
sequencer. However, there is much more about a Mix that may be edited.  
Refer to Chapter 5 for more about Mix editing.  
¿
Press [MIX] and select a Mix using one of the three methods  
described above.  
¡
Press [SELECT].  
The top line of the LCD’s function list will read “EDITING: MIX”.  
¬
Simultaneously press both the FUNCTION [¨ ] and [Æ] buttons.  
1
2
3
4
5
6
7
8
9
1
0
1
1
1
2
1
3
1
4
1
5
1
6
M
I
X
P
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O
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EFFECT  
EDI TI  
N
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M
I
X
P
ROGRAM  
AS  
S
I
GN  
LEVEL  
EFFECTLEVEL  
P
I
TCH  
RANGE  
EF  
F
ECT  
NAM  
E
P
AGE:  
1
Use the MIDI [¨ ] and [Æ] buttons to select a MIDI channel for  
editing.  
The MIDI monitor and selection strip will indicate the selected MIDI channel  
with an underline. These buttons “wrap around” (e.g., if you’re on channel 16  
and press MIDI [Æ], you’ll select channel 1. If channel 1 is selected and you  
press MIDI [¨ ], you’ll select channel 16).  
ƒ
Use Quad Knob [1] to choose a Bank (User, Preset 1 – 4).  
H
Use Quad Knob [2] to select a Program for the selected Channel.  
J
Don’t use the MIX/PROGRAM SELECT [1]—[0] buttons while in any edit  
mode. If you do, you will be kicked out of Mix Edit mode and will select another  
Mix, losing your changes.  
Use Quad Knob [4] to enable or disable the Program on the  
selected Channel.  
When enabled, the Channel number will appear in the top left of the display.  
When disabled, the Channel number will not appear (unless selected for editing  
using the MIDI [¨ ] and [Æ] buttons, in which case it is underlined).  
«
To set the Program’s level, press the FUNCTION [Æ] button  
once so that “LEVEL” is underlined in the display. Use Quad Knob [1] to  
adjust the level.  
QuadraSynth Plus Piano Reference Manual  
25  
Your First Session With The QuadraSynth Plus: Chapter 2  
»
Repeat steps ¬ « until all desired Programs are assigned to  
all desired MIDI channels, and have the appropriate levels.  
J
Changes to Mix parameters are temporary and will be lost if another Mix is  
selected. To make changes permanent, you must store the Mix into the User  
bank. Refer to Chapter 4 for information about storing changes.  
QuadraSynth Plus Piano Reference Manual  
26  
Your First Session With The QuadraSynth Plus: Chapter 2  
Setting the Effects Level  
Each Program can use up to four Sounds, for either layering or splitting  
the keyboard. Each of these Sounds has its own effects send level and  
effects bus assignment. Many of the Programs in the QuadraSynth Plus  
use only one or two Sound layers, while others may use all four Sounds.  
You can adjust the effect send amount for each Sound independently, or  
you can view/edit all four sounds simultaneously.  
¿
Press [PROGRAM] to access Program Play Mode, and select a  
Program you wish to edit, using the methods described on page 14.  
¡
¬
Press [SELECT] to access Program Edit Mode.  
Press the [EFFECT] button (located among the DIRECT SELECT  
buttons on the far left); the words “EFFECT - LEVEL” are underlined in  
the display.  
This is where you determine how much level will be sent from the current  
Program sound layer to the effects processor, and on which of the four busses.  
1
P
ROG  
EDI TI  
N
G:  
P
ROGRAM  
SOUND  
1
AS  
S
I
GN  
VOI CE  
LEVEL  
EFFECTLEVEL  
P
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TC  
H
F
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TER  
AM  
P
RANGE  
M
OD  
EFFECT  
NAM  
E
P
LF  
O
F
LF  
O
ALFO  
P
ENV  
FENV  
AENV  
TRACK  
M
I
SC.  
P
AGE:  
1
Turn Quad Knob [1] to adjust the effect send level of the selected  
Sound (1—4).  
For the most dramatic effect, set this to 99.  
ƒ
Press the [EDIT 1] button to select another Sound to adjust.  
The display will indicate “SOUND 1” or “SOUND 2,” etc., to indicate which  
of the four Sounds is being edited.  
H
Press the [EDIT 4] button to display the effect send levels of all  
four Sounds simultaneously; use Quad Knobs [1] — [4] to adjust each  
Sound’s effect level.  
The display will indicate “SOUND 1 2 3 4.”  
MIDI  
1
CHAN  
P
P
R
ROOG  
G
P
RESET  
EDI TI  
N
G:  
P
ROGRAM  
SOUND  
1
2
3
4
AS  
S
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VOI CE  
LEVEL  
EFFECTLEVEL  
P
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H
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RANGE  
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EFFECT  
NAM  
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LF  
O
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LF  
O
ALFO  
P
ENV  
FENV  
AENV  
TRACK  
M
I
SC.  
P
AGE:  
1
QuadraSynth Plus Piano Reference Manual  
27  
Your First Session With The QuadraSynth Plus: Chapter 2  
Note: If a Sound is not enabled in a Program, its title will be shown in lowercase  
(“snd4”), and adjust its controls will have no effect on the Sound until the  
Sound is enabled. To enable a Sound, hold down its respective Quad Button  
(i.e., [3] for Sound #3) and press VALUE [` ].  
QuadraSynth Plus Piano Reference Manual  
28  
Connections: Chapter 3  
CHAPTER 3  
CONNECTIONS  
Basic MIDI Hookup  
MIDI is an internationally-accepted protocol that allows musical-related data to  
be conveyed from one device to another. See the MIDI Supplement in Appendix  
B if you are not familiar with how MIDI works.  
The MIDI connections provide three different functions. To trigger the  
QuadraSynth Plus from a MIDI control device (keyboard, drum pad, guitar or  
bass controller, sequencer, etc.), connect the control device’s MIDI OUT to the  
QuadraSynth Plus’s MIDI IN.  
The MIDI THRU jack carries a replica (or echo) of the signal appearing at the  
QuadraSynth Plus’s MIDI IN, allowing you to trigger other devices from the  
same controller which is feeding the QuadraSynth Plus. Simply connect the  
QuadraSynth Plus MIDI THRU to the other device’s MIDI IN. Note that the  
MIDI THRU jack will not send messages from the QuadraSynth Plus’s keyboard  
itself.  
The MIDI OUT sends MIDI data from the QuadraSynth Plus’s keyboard to other  
MIDI devices, but can also send System Exclusive data (see the MIDI supplement)  
to a storage device such as the Alesis DataDisk for later recall.  
QuadraSynth Plus Piano Reference Manual  
29  
Connections: Chapter 3  
Example 1: Master Controller for Live Use  
Most live applications use the QuadraSynth Plus to generate sounds, with  
(possibly) the MIDI output driving other MIDI devices, such as an S4 Plus rack  
unit, QuadraVerb 2, other keyboards and sound modules, etc.  
To drive MIDI controlled devices from the QuadraSynth Plus, patch the  
QuadraSynth Plus’s MIDI OUT to the MIDI device’s MIDI IN. If there is more  
than one MIDI device, patch the first device’s MIDI THRU to the second device’s  
MIDI IN, the second device’s MIDI THRU to the third device’s MIDI IN, etc.  
Caution: Do not attempt to connect more than three or four units together using  
thru connections as this may impede the MIDI data flow to the connected  
devices. Instead, insert a MIDI patch-bay to the QuadraSynth Plus’s MIDI OUT  
so that all devices receive its MIDI information simultaneously.  
In Program mode, the keyboard sends and receives MIDI information on only  
one MIDI channel at a time. In Mix mode, however, the keyboard can transmit  
on as many as 16 MIDI channels, each with its own keyboard range (for more  
information on Program mode and Mix mode, see Chapter 4).  
When using the QuadraSynth Plus as a master keyboard to play other MIDI  
devices, be sure the Keyboard Mode is set to “NORMAL.” The Keyboard Mode  
parameter is found on Page 2 of Global mode (for more information, see Chapter  
8).  
It is possible for the QuadraSynth Plus to transmit volume and pan settings via  
MIDI (as controllers 7 and 10, respectively). This occurs whenever a new  
Program  
is selected, or when a new Mix is selected. In the case of a Mix, the volume and  
pan settings may be transmitted for each Channel (up to 16) used in the selected  
Mix.  
QuadraSynth Plus Piano Reference Manual  
30  
Connections: Chapter 3  
Example 2: Using an External Sequencer  
The QuadraSynth Plus can generate MIDI signals that are recorded by a  
sequencer. On playback, the sequencer sends this data back into the  
QuadraSynth Plus, which then serves as a multitimbral sound module (in Mix  
mode). The sequencer can generate data over several channels; in Mix mode, the  
QuadraSynth Plus can be programmed so that individual Programs play  
sequenced data on specific channels.  
Example: If the sequencer transmits a piano part over channel 1, a bass part over  
channel 2, and a drum part over channel 10, you could set up a QuadraSynth  
Plus Mix so that a piano sound plays only the MIDI data assigned to channel 1, a  
bass sound plays only the MIDI data assigned to channel 2, and drums play only  
the MIDI data assigned to channel 10. The QuadraSynth Plus can store up to 100  
User Mixes.  
Connect the sequencer’s MIDI Out to the QuadraSynth Plus’s MIDI IN, and the  
QuadraSynth Plus’s MIDI OUT to the sequencer’s MIDI In. This allows the  
QuadraSynth Plus to send data to the sequencer for recording, and play back  
data from the sequencer.  
QuadraSynth Plus Piano Reference Manual  
31  
Connections: Chapter 3  
If you are driving other MIDI gear (such as an expander module or MIDI-  
responsive signal processor), you’ll usually drive these from the sequencer if it  
has additional MIDI outputs. However, you can also use the QuadraSynth Plus’s  
MIDI THRU connector to drive other modules since the Thru carries a replica of  
what appears at the QuadraSynth Plus’s MIDI IN, which is the same as the  
sequencer’s MIDI OUT.  
QuadraSynth Plus Piano Reference Manual  
32  
Connections: Chapter 3  
About the Keyboard Mode  
In a Mix, the QuadraSynth Plus’s keyboard may be set up in several  
ways using the Keyboard Mode parameter found on Page 2 of Global  
mode. You need to determine which way is best for your application.  
The Keyboard Mode parameter determines how the keyboard will  
function with regard to MIDI in Mix mode:  
The keyboard sends on only one MIDI channel and the  
sequencer is used to set the MIDI channel of each track (Keyboard Mode  
= OUT 1 – OUT 16).  
Or, the keyboard is split or layered, sending on many MIDI  
channels at once, and the sequencer records each channel onto a different  
track (NORMAL).  
Or, the keyboard only sends on one MIDI channel, but you  
change the channel on the QuadraSynth Plus for each separate track on  
the sequencer (CH SOLO).  
In OUT 1 – OUT 16 mode, you will not hear the QuadraSynth Plus  
unless your sequencer echoes the MIDI data back to the QuadraSynth  
Plus’s MIDI IN. This is a way of verifying that the sequencer is set to  
receive properly. Depending on the capabilities of your sequencer, it  
may “auto-channelize” the echoed MIDI back to the QuadraSynth Plus  
on a different MIDI channel (usually, the MIDI channel that the selected  
record track is assigned to). In NORMAL or CH SOLO mode, the  
QuadraSynth Plus sounds are internally played from the QuadraSynth  
Plus keyboard, so any echo features of the sequencer should be turned  
off.  
When using the QuadraSynth Plus with a MIDI sequencer, the usual  
choice for the Keyboard Mode is “OUT 1.” This is equivalent to turning  
the QuadraSynth Plus’s local control off and transmitting on channel 1.  
For more information, see page 46.  
Pedal and Footswitch Hookup  
The QuadraSynth Plus keyboard has two PEDAL jacks that accept a Roland  
model EV-5 (or equivalent) volume control pedal, or a standard switch pedal.  
Each pedal can be assigned to independent modulation functions within a  
program. Example: One pedal could control volume, and the other vibrato depth.  
The SUSTAIN footswitch jack accepts a momentary footswitch unit, included  
with the unit (it is packed in the center of the end caps). This provides the same  
function as the sustain (or damper) pedal on a standard keyboard. You can use  
either a normally closed or normally open momentary contact footswitch. Plug it  
into the rear panel SUSTAIN footswitch jack before powering up the  
QuadraSynth Plus; on power up, it will automatically sense the footswitch  
polarity and calibrate itself accordingly.  
J
QuadraSynth Plus Piano Reference Manual  
33  
Connections: Chapter 3  
If your footswitch seems to respond backwards (notes sustain unless the footswitch is  
pressed), turn off the QuadraSynth Plus, make sure the footswitch plug is fully inserted  
into the footswitch jack, then turn the power back on.  
J
Don't hold downthe footswitch iwhen powering up the QuadraSynth Plus.  
QuadraSynth Plus Piano Reference Manual  
34  
Connections: Chapter 3  
Digital Audio/Optical Hookup  
The QuadraSynth Plus can send digital audio directly into ADAT, which  
provides better fidelity than using the analog inputs and outputs.  
The digital I/O connector follows a proprietary Alesis format that carries all four  
audio outputs on a single fiber optic cable. Either pair of outputs can be  
converted into standard AES/EBU or S/PDIF stereo digital audio format by  
using the Alesis AI-1 interface. Fiber optic cables of various lengths are available  
from your Alesis dealer. The shorter the cable, the better. The model OC cable is  
5 meters long and is the maximum length recommended.  
To hook up the optical cable:  
¿
Remove the two pieces of clear plastic, tubular sleeving (if present) that  
protect the tips of the optical cable plugs.  
¡
Insert one cable end into the QuadraSynth Plus DIGITAL OUT and the  
other end into the ADAT or AI-1 DIGITAL IN.  
To test the cable and QuadraSynth Plus digital output, plug one cable end into  
the QuadraSynth Plus. The other end should emit a soft red light (it is not  
dangerous to look directly at this light).  
Recording Digital Audio  
Once the fiber optic connection is made between the QuadraSynth Plus  
and ADAT or an AI-1, the QuadraSynth Plus will output audio on the  
first four channels of the digital bus (the bus is capable of handling eight  
channels of digital audio). The Main Left and Right outputs are routed to  
channels 1 and 2, while the Aux Left and Right outputs are routed to  
channels 3 and 4. Note that the volume knob controls the level of all  
analog and digital output channels simultaneously. Set the volume to  
maximum for most applications.  
48 kHz Clock In  
If your ADAT system has an Alesis BRC Remote Controller, the QuadraSynth  
Plus’s digital clock must be synchronized to the clock coming from the BRC.  
Connect a BNC-to-BNC cable (such as the Alesis BN cable) between the BRC’s 48  
kHz CLOCK OUT and the QuadraSynth Plus’s 48 kHz CLOCK IN. For more  
information about using the 48 kHz clock, see page 118 in Chapter 8. When using  
only one ADAT without the BRC, it is not necessary to connect the 48 kHz Clock.  
QuadraSynth Plus Piano Reference Manual  
35  
Connections: Chapter 3  
Tip: With this type of connection, the ADAT tracks will remain in tune with the  
QuadraSynth Plus even when the BRC’s pitch value is adjusted.  
QuadraSynth Plus Piano Reference Manual  
36  
Overview: Chapter 4  
CHAPTER 4  
OVERVIEW  
Basic Architecture  
The QuadraSynth Plus contains digitized acoustic and electronic voices,  
organized into 18 groups of sound types. The groups are:  
Piano  
Bass  
Guitar  
Brass  
Woodwind  
String  
Ensemble  
Ethnic  
Voice  
Drums  
Organ  
Keyboard  
Synth  
Percussion  
Rhythm  
QSPlus  
Sound FX  
Waves  
Several functions (filter, amplitude envelope, pitch envelope, LFO, multiple  
modulation sources, signal processors, etc.) can be used to process a sample. A  
Sound is the combination of a sample with its associated processing.  
A Program consists of up to four sounds. These sounds can be layered, split over  
specific keyboard ranges, or selectively overlapped. The QuadraSynth Plus has a  
User Bank of 128 Programs that you can modify, plus 4 Preset Banks with 512  
Preset Programs that are permanently installed in the QuadraSynth Plus at the  
factory (although the Preset Programs can be edited, they must be stored into the  
User bank to permanently retain your changes). Each Program is linked to its  
own Effects Patch.  
A Mix consists of up to 16 Programs, each assigned to a specific MIDI channel  
and one Effect Patch. The QuadraSynth Plus has 100 Mixes in the User Bank,  
plus 4 Preset Banks with 400 Preset Mixes. This is extremely useful for  
multitimbral setups where the QuadraSynth Plus plays back different sounds on  
different MIDI channels. Because of the 64 voices and built-in effects, the  
QuadraSynth Plus is often the only sound generator needed.  
QuadraSynth Plus Polyphony  
The QuadraSynth Plus provides 64-voice polyphony (i.e., how many notes can  
play at once). If a program uses one sound, up to 64 notes can play at once.  
Layering two sounds allows for 32-note polyphony and layering four sounds, 16-  
note polyphony.  
Layering is a powerful technique that allows you to build up complex timbres.  
This is crucial because acoustic instruments have extremely complex, evolving  
sounds and by comparison, many synths sound static. Being able to layer up to  
four sounds allows for creating large ensembles (e.g., brass section consisting of  
alto & tenor sax, trumpet, and trombone) or extremely realistic versions of single  
instruments. When creating layered Programs, keep polyphony in mind. If all  
Programs in a Mix use all four available sounds, the QuadraSynth Plus will  
quickly run out of voices.  
QuadraSynth Plus Piano Reference Manual  
37  
Overview: Chapter 4  
Modes  
The QuadraSynth Plus is always in one of two main modes: Program Mode or  
Mix Mode. Pressing [PROGRAM] selects Program Play Mode, while pressing  
[MIX] selects Mix Play Mode. While in Program Play Mode, you can press  
[SELECT] to access Program Edit Mode and Effects Edit Mode. While in Mix  
Play Mode, pressing [SELECT] alternates between Mix Edit Mode, Program Edit  
Mode and Effects Edit Mode. Pressing [GLOBAL] accesses Global Edit Mode,  
pressing [COMPARE] accesses Compare Mode, and pressing [STORE] accesses  
Store Mode. Here are descriptions of these modes:  
Program Play Mode  
Program Play Mode lets you play the QuadraSynth Plus’s various  
Programs one at a time. The QuadraSynth Plus contains 512 Preset and  
128 User Programs (i.e., the sounds of various instruments, effects,  
ensembles, etc.) that show off just how cool this instrument really is.  
Initially, the 4 Preset Banks and the User Bank contain data loaded in at  
the factory. The User Programs can be edited or replaced with your own  
Programs. However, you cannot replace the Preset Programs, because  
these are stored in ROM (permanent memory). In Program Play Mode,  
the QuadraSynth Plus responds to or generates messages on a single  
MIDI channel.  
Mix Play Mode  
Mix Play Mode lets you audition the QuadraSynth Plus’s various Mixes,  
and use it as a MIDI master controller. The QuadraSynth Plus contains  
400 Preset Mixes and 100 User Mixes. A Mix can combine up to 16  
different Programs, and the keyboard can generate up to 16 channels of  
MIDI data at once. Therefore, much thicker and richly textured sounds  
can be created. In Mix Play Mode, the QuadraSynth Plus can be used in a  
wide range of applications. It can be used for live performance, in which  
sounds are layered or assigned to sections of the keyboard. It can also be  
used as a multitimbral sound source for desktop music and home studio  
applications. A Mix can use the Effects Patch associated with one of its  
Programs. Although there may be 16 Programs in a Mix, there can only  
be one Effects Patch per Mix. In Mix Mode, the QuadraSynth Plus can  
respond to messages on up to 16 MIDI channels simul-taneously;  
different channels are available depending on which Mix is selected.  
Program Edit Mode  
In Program Edit Mode, you can change the various settings which  
determine the sound of an individual Program, or create an entirely new  
Program from scratch. Each Program is made up of four Sound layers,  
which you can edit individually, or simultaneously. In Program Edit  
mode you can:  
select which sample waveform from the 24 megabytes of  
onboard sample ROM will be used, in each of the 4 sounds;  
change the tone, level, attack and decay characteristics,  
modulation inputs, and pitch of each layer;  
QuadraSynth Plus Piano Reference Manual  
38  
Overview: Chapter 4  
set modulation routings so any parameter can be controlled via  
set the effect level for each Sound layer, and set which of the four  
MIDI;  
effect sends each Sound layer will use for signal processing (such as  
reverb, delay, and chorus—or any combination of these).  
Mix Edit Mode  
Mix Edit Mode lets you change the parameters of an existing Mix. Up to  
16 Programs can be active in each Mix, and Mix Edit mode sets up how  
each will be played. Mix Edit Mode allows you to:  
select which Programs will be played by the different MIDI  
channels and by the keyboard in multiple layers or splits;  
Mix;  
set the output level, effects level, and pan of each Program in the  
select which Program’s Effects Patch will be used by the Mix.  
Effects Edit Mode  
Effects Edit Mode is used for setting up the Digital Signal Processing  
effects. Each Effect Patch has 4 effect bus inputs, and an internal  
configuration of multiple effects such as reverb, delay, and pitch-related  
effects (chorus, flange, etc.). You can determine what kinds of effects are  
used on each bus (this is called a “Configuration”), change each effect’s  
parameters (such as reverb decay time or chorus speed), set modulation  
routings (such as having the modulation wheel change the decay time),  
and set the effects mix (how much reverb, delay and chorus on the  
output of each effect bus).  
Global Edit Mode  
Use Global Edit Mode to set various parameters which effect the entire  
instrument, such as overall master tuning, display contrast, MIDI  
controller settings, keyboard sensitivity, and how the unit will respond  
to or generate messages in Mix Mode.  
Store Mode  
Store Mode is used for storing changes of Programs, Mixes and/or  
Effects into the User Bank or onto a QuadraCard PCMCIA memory card  
accessory. It is also used for transmitting the QuadraSynth Plus’s  
parameters over MIDI for data storage purposes, copying sounds or  
effects from one Program to another, and for transferring entire Banks to  
or from a Sound Card.  
Compare Mode  
Once a Program has been edited in Program Edit Mode, or a Mix has  
been edited in Mix Edit Mode, the word “EDITED” will appear in the  
display next to the Mix/Program number. If [COMPARE] is pressed, the  
word “COMPARE” will appear in the display, and you will temporarily  
QuadraSynth Plus Piano Reference Manual  
39  
Overview: Chapter 4  
be hearing (and seeing) the original version of the Mix/Program. If you  
are editing a Mix and press [COMPARE], the original unedited MIX is  
temporarily recalled. Likewise, if you are editing a Program or its Effects  
Patch and press [COMPARE], the original Program will be temporarily  
recalled. Pressing [COMPARE] again switches back to the edited version,  
and the word “COMPARE” disappears from the display.  
QuadraSynth Plus Piano Reference Manual  
40  
Overview: Chapter 4  
The User Interface: Display, Functions, Pages, and  
Parameters  
The key to the QuadraSynth Plus user interface is the combination of the Display  
and four Quad Knobs/Buttons [1] — [4] located toward the right of the front  
panel. The Display constantly informs you of the QuadraSynth Plus’s status.  
About the Display  
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Note: This illustration shows all display flags turned on at once. Actual displays  
show only some of these at any time.  
The display has eight main sections:  
MIDI monitor and selection strip. Selects different MIDI  
channels for the programs in Mix Play Mode (a thick underline indicates  
the selected channel), monitors keyboard and incoming MIDI activity  
(thick lines above active channel numbers indicates activity either from  
the keyboard or MIDI In), and chooses the basic MIDI channel in  
Program Play Mode.  
Current Mix, Program and Effect strip. Shows the currently  
selected Mix and/or Program and its associated Effect.  
Editing Status. Indicates what you are editing (either Mix Edit,  
Program Edit, or Effects Edit), after pressing [SELECT]. “1 2 3 4”  
indicates which Sound (1–4) is selected for editing when in Program Edit  
mode; or, which effect send (1–4) is selected for editing when in Effects  
Edit mode. Press [EDIT 1] to cycle through the four Sounds/sends.  
When Edit 4 mode is selected (press [EDIT 4]), all four numbers appear,  
to indicate that all four Sounds are available for simultaneous editing  
(Edit 4 mode is available in Program Edit mode only).  
Functions list. Displays the various editing functions available  
in a particular editing mode. Use the FUNCTION [¨ ] and [Æ] buttons to  
select a function, as indicated by the small line (cursor) underneath one  
of the words in the list. When a function is chosen, the page number strip  
QuadraSynth Plus Piano Reference Manual  
41  
Overview: Chapter 4  
and right-hand side of the display will show values related to that  
function. Only the functions used by the current edit mode will be  
displayed and selectable. Functions can also be selected from the  
DIRECT SELECT buttons (see page 31).  
Page number strip. Some functions have too many options to fit  
on a single screen. These functions use multiple screens, with each screen  
considered a page. This strip shows which page is selected by  
underlining the page number. The PAGE [¨ ] and [Æ] buttons allow you  
to select a page.  
Name strip. When in Mix Play Mode, the name of the currently  
selected Mix will appear here. Likewise, when in Program Play Mode,  
the name of the currently selected Program will appear here. In any Edit  
mode or Store mode, the name of the currently selected parameter will  
appear here indicating it is selected for editing using the VALUE [` ] and  
[Ø] buttons.  
Quad Knob/Button Label strip. This line is used to show the  
labels of the bar graph meters, which determine the functions of the four  
Quad Knobs and Buttons. These labels change depending on which  
function and page is currently selected. The labels are abbreviations of  
the parameters; the complete name (and value) of a selected parameter  
will appear in the Name strip.  
Quad Knob bar graph meters. When a Quad Knob controls a  
function’s parameter, an associated bar graph appears which reflects the  
Knob’s setting. Note: Not all four Quad Knobs are active in all pages. If a  
single line appears somewhere in the bargraph area, it indicates its  
corresponding Quad Knob is active.  
MIDI Buttons  
The MIDI [¨ ] and [Æ] buttons serve two purposes. In Program Play  
Mode, they select the basic MIDI channel the QuadraSynth Plus will  
receive and transmit MIDI messages on. In Mix Play Mode, they are used  
to select one of the 16 Programs for viewing and editing.  
For more information on MIDI and its uses, see Chapters 8 and 9, and  
Appendix B.  
Quad Knob Editing  
The Quad Knobs have two editing modes: Immediate and Pass-thru.  
When using the Quad Knobs to adjust parameter values, you may prefer  
using one mode over the other. When set to Immediate, parameter  
values jump immediately to the Quad Knob’s exact position the moment  
it is moved. When set to Pass-thru, the Quad Knob must be turned  
beyond the parameter’s current setting before it becomes “live” and  
begins adjusting the parameter’s value.  
The editing mode is set in Global Edit mode, Page 2, using Quad Knob  
[3]. For more information about selecting the Quad Knobs’ editing mode,  
see Chapter 8.  
QuadraSynth Plus Piano Reference Manual  
42  
Overview: Chapter 4  
Parameter Editing  
All parameter editing involves the same general procedure, with minor  
variations:  
¿
Select the type of parameters you want to edit with the  
corresponding button: [MIX], [PROGRAM], or [GLOBAL].  
Mix parameters edit a Mix. Program parameters edit a Program. Effects  
parameters can be edited from within a Mix or a Program (see below). Global  
parameters edit general characteristics that affect the entire instrument.  
¡
Select an Edit Mode with the [SELECT] button.  
Example: If you pressed [PROGRAM], the [SELECT] button switches between  
two groups of functions—one for editing the Program’s Sound layers(Program  
Edit Mode), and the other for editing the associated Effect (Effects Edit Mode). If  
you’re editing a Mix, the [SELECT] button switches between three groups of  
functions—one for editing the Mix’s parameters (Mix Edit Mode), one for  
editing the Programs in the Mix (Program Edit Mode), and the last for editing  
the associated Effect (Effects Edit Mode).  
¬
Use the FUNCTION [¨ ] and [Æ] buttons to select a function  
(level, pitch, etc.). Alternatively, you can use the DIRECT SELECT  
buttons (located on the far left of the front panel) to directly select a  
Function to edit.  
Press FUNCTION [Æ] to move toward the end of the list, and FUNCTION  
[¨ ] to move back toward the beginning. The selected function will be underlined  
in the display. Press both FUNCTION [¨ ] and [Æ] simultaneously to get back  
to the first function in the list.  
If a function has multiple pages, select the appropriate page by  
using the PAGE [¨ ] and [Æ] buttons.  
The LCD’s page number strip shows the number of pages in a function; an  
underline shows the currently selected page (e.g., if the display shows “1 2 3”  
then page two is selected).  
Press the PAGE [Æ] button to select the next higher-numbered page, and  
PAGE [¨ ] to select the next lower-numbered page. Press both PAGE [¨ ] and  
[Æ] simultaneously to get back to the first page of the selected function.  
ƒ
Select a parameter on the page for editing.  
There can be up to four editable parameters on a page. The right side of the  
display shows these parameters with both text and bar graph meters to give  
instant visual feedback concerning a parameter’s value. Each of the four  
columns has an associated Quad Knob and Button: the leftmost column  
monitors Quad Knob/Button[1], the second from left column monitors Quad  
Knob/Button [2], etc. Turning a Quad Knob or pressing its Button selects the  
associated parameter for editing. The currently selected parameter is indicated  
by a thick line at the bottom of one of the four bar graph meters.  
H
Change the parameter value.  
You can edit the value either by turning the associated Quad Knob (for large  
value changes) or pressing the VALUE [Ø] and [` ] buttons (for smaller  
changes).  
QuadraSynth Plus Piano Reference Manual  
43  
Overview: Chapter 4  
Each bar graph indicates a parameter’s approximate value—increasing a  
value increases the column height. With bipolar values that can go  
positive or negative, turning a knob clockwise increases the column  
height upward from the midpoint, and turning a knob counterclockwise  
increases the column height downward (more negative value) from the  
midpoint.  
Always refer to the parameter name strip in the display above the  
bargraphs for the current parameter label and value.  
QuadraSynth Plus Piano Reference Manual  
44  
Overview: Chapter 4  
Direct Function Selection  
When editing a Mix, Program or a Program’s Effects, the DIRECT  
SELECT buttons (located next to the large VOLUME knob) provide  
direct selection of edit Functions. This means you can get to the Function  
you want to edit fast. The Functions available for direct selection are  
printed on the front panel adjacent to each button. By pressing some of  
the buttons repeatedly, you can select other Functions related to the  
main Function for that button. Example: By pressing DIRECT SELECT [7]  
when in Program Edit Mode, the Filter Function is selected. Press it a  
second time, and the FLFO is selected; press it a third time and the FENV  
is selected.  
The Direct Select Functions are shown in the table below.  
Button  
Mix Edit Function  
Program-Assign  
Level  
Effect-Level / Effect  
Range  
Program Edit Function  
Assign-Voice  
Level  
Effects Edit Function  
Config  
Pitch  
1
2
3
4
5
6
7
8
9
0
Effect-Level  
Delay  
Reverb  
Mix  
- - - - -  
- - - - -  
- - - - -  
Mod  
Misc.  
Range  
Name  
Name  
Pitch  
- - - - -  
- - - - -  
- - - - -  
- - - - -  
Pitch / PLFO / PENV  
Filter / FLFO / FENV  
Amp / ALFO / AENV  
Mod / Track  
Misc.  
Editing Program Parameters  
Here is an example of how to use the QuadraSynth Plus’s editing  
features to change Program parameters. Feel free to make changes and  
twist dials; these will not be made permanent unless you store the  
Program (described later).  
¿
Press the [PROGRAM] button.  
This selects Program Play Mode.  
¡
Select a Program using the methods described on page 14.  
The currently selected Program will appear in the upper right of the display.  
¬
Press the [SELECT] button.  
Pressing this button toggles between Program Edit mode and Effects Edit mode.  
The display’s editing status line will indicate either “Editing: Program” or  
“Editing: Effect.” To change edit status, press the [SELECT] button again. For  
now, select “Editing: Program.”  
Select the desired function by using the FUNCTION [¨ ] and [Æ]  
buttons to step through the various Function in the display (Assign  
Voice, Level, Effect Level, Pitch, Filter, Amp, etc.). Alternatively, you can  
use the DIRECT SELECT buttons (located on the far left of the front  
panel) to directly select a Function.  
QuadraSynth Plus Piano Reference Manual  
45  
Overview: Chapter 4  
Pressing FUNCTION [Æ] advances to the next function, and FUNCTION  
[¨ ] returns to the previous function. As you select the different edit Functions,  
the page number strip shows how many pages exist for that function, and the  
right part of the display will show the parameters on the current page.  
ƒ
Some functions have more parameters than will fit on a single  
display page, and therefore will have multiple pages, as indicated in the  
lower left corner of the display. To select a page within a particular edit  
function, use the PAGE [¨ ] and [Æ] buttons.  
Press the PAGE [Æ] button to advance to the next higher-numbered page or  
PAGE [¨ ] to return to the next lower-numbered page.  
H
To adjust a parameter on a page, either:  
Turn the associated Quad Knob [1] – [4].  
Press the associated Quad Button [1] – [4] to select a parameter  
in the display, then adjust its setting with the VALUE [Ø] and [` ]  
buttons.  
Edit 4 and Edit 1 Modes  
A Program is made up of four sounds. Sometimes, you need to edit four  
variables of a single Program sound (for example, the  
attack/decay/sustain/release parameters of an envelope). Other times,  
you may want to edit one variable in all four layers (for example, the  
attack parameter of each layer). These two different methods of editing a  
Program are available under the [EDIT 1] and [EDIT 4] buttons. The only  
difference between the two modes is what variables will appear in the  
display at the same time. You can switch between Edit 1 Mode and Edit  
4 Mode at any time.  
Note: There is no Edit 4 mode for Mixes or Effects.  
¿
Press [EDIT 1] repeatedly to select a sound for editing.  
The status line in the display will indicate ”SOUND 1,” or “SOUND 2,”  
etc., as you continue to press [EDIT 1].  
¡
To view and edit parameters for all four sounds at once, press  
[EDIT 4].  
The status line in the display will indicate “SOUND 1 2 3 4.”  
In Edit 4 mode, the four Quad Knobs represents the four sound layers of  
a Program. The currently selected parameter’s name will appear at the  
top right of the display, while above each bargraph are the words “SND1  
SND2 SND3 SND4.” If a sound is disabled, the display will show the  
sound’s name in lower case (“snd1” means that sound 1 is disabled). If a  
sound is in Drum mode, the sound’s name will read “drmX,” where X is  
the sound number (1–4).  
Notice that the assignments of the Quad Knobs and the number of pages  
in a function change between Edit 1 Mode and Edit 4 Mode. For  
example, in Edit 1 mode the LEVEL function has only one page which  
QuadraSynth Plus Piano Reference Manual  
46  
Overview: Chapter 4  
shows the Volume, Pan and Output of a single sound. In Edit 4 Mode,  
the Level function has three pages: all four sound volumes are page 1, all  
pans are on page 2, and all outputs are on page 3.  
QuadraSynth Plus Piano Reference Manual  
47  
Overview: Chapter 4  
Resetting a Parameter Value  
It’s often convenient while editing to return a parameter to its default  
setting (usually, but not always, 0). This normally involves turning a  
Quad Knob or repeatedly pressing the VALUE [Ø] and [` ] buttons, but  
here’s a quicker way:  
To reset a parameter to its default setting:  
¿
Select the parameter you wish to reset using the methods  
described earlier.  
¡
Simultaneously press both the VALUE [Ø] and [` ] buttons.  
Comparing Edited and Stored Versions  
When you edit a Program or Mix, you are actually editing a copy which is in a  
temporary edit buffer. Therefore, to retain the results of your edit, you must save  
it to a particular memory location (see the next section on Storing). If you change  
memory locations before saving, the buffer will be replaced and your edits lost.  
Because the original Program/Mix remains undisturbed, you can compare the  
edited version to the original by using the Compare function. You can only select  
Compare mode when either Mix Edit, Program Edit or Effects Edit is selected,  
and the word “EDITED” appears in the display below either “MIX,” “PROG” or  
“EFFECT.”  
¿
Press [COMPARE].  
The word “COMPARE” will appear in the display, while the word “EDITED” will  
disappear.  
¡
Press [COMPARE] again to exit Compare mode and return to the edited  
version.  
The word “COMPARE” will disappear from the display, and the word “EDITED” will  
reappear. Pressing [MIX], [PROGRAM], [GLOBAL], [STORE] or the  
MIX/PROGRAM SELECT [1]—[0] buttons will also exit Compare mode.  
J
While Compare mode is selected, you can move around to view the various parameters,  
but you will not be able to edit anything. This is because you are seeing what is in  
memory, not what is in the edit buffer.  
Preset Memory and User Memory  
The QuadraSynth Plus has two types of memory banks for Mixes and Programs:  
Preset and User. The Preset banks, of which there are four, are stored in ROM  
(Read Only Memory), and therefore cannot be altered. However, the User bank,  
of which there is 1, is stored in RAM (Random Access Memory). Anytime you  
want to keep an edited version of a Mix or Program, you will store it into the  
User bank or onto a RAM Card. If you want to permanently change a Mix or  
Program that is in the Preset bank, you can store the edited version into the User  
bank (in either the same number location or a different number location).  
QuadraSynth Plus Piano Reference Manual  
48  
Overview: Chapter 4  
However, this requires that you “store over,” losing whatever was previously in  
that location. If you don’t want to lose any of the sounds in the User bank, you  
should back-up the entire bank to either an external SRAM or FlashRAM  
PCMCIA card, or (via MIDI System Exclusive) into a data storage device like the  
Alesis DataDisk or a MIDI sequencer. See Chapter 9 for more information on  
external storage operations.  
QuadraSynth Plus Piano Reference Manual  
49  
Overview: Chapter 4  
Storing  
The [STORE] button selects Store mode. Store mode has 6 pages which you can  
scroll through by using the PAGE [¨ ] and [Æ] buttons. Each page in Store mode  
provides a different type of storage, copy or data transfer function. When storing  
edited Mixes, or Programs into the User Bank or a RAM Card Bank, you will use  
the first page of Store mode (for more information about the other pages of Store  
mode, see Chapter 9). If you press [STORE] while in Mix Play Mode, the display  
will look like this:  
M
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I
1
2
3
4
5
6
7
8
9
1
0
1
1
1
2
1
3
1
4
1
5
1
6
C
H
A
N
MM  
II  
XX  
P
ROG  
E
EFFFFEECCT  
T
PR  
E
S
E
T
PR  
E
S
E
T
PR  
E
S
E
T
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:
1
2
3
4
5
6
Once you have edited a Mix, a Program, or an Effect, the word “EDITED” will  
appear in the display. If this word appears next to the Mix Number, the Mix has  
been edited; if it appears next to the Program Number, the Program has been  
edited; if it appears next to the Effect Number, the Effect has been edited.  
Each edit mode type requires its own store operation. For example, if while  
making a new Mix you also make changes within one of the Programs (such as  
lowering the filter level), you must use the Store command separately (from Mix  
Edit, and Program Edit or Effect Edit) in order to save your work. Note: When  
using the Store command from Effect Edit Mode, the associated Program is  
stored. This is because Effects are stored within their respective Programs.  
If you select a different Mix while in Mix Edit mode, or a different Program in  
Program Edit mode, you will lose all changes you have made, unless you  
perform a store first.  
J
You can only store Mixes, Programs, and Effects into their respective User banks. The  
Preset banks are permanently stored in ROM and cannot be saved over.  
Store a Program  
¿
While in either Program Play Mode or Program Edit mode, after  
making your edits press the [STORE] button.  
¡
Select the memory Bank and location to which you want to store  
the Program using Quad Knobs [1] and [2]. respectively.  
If no RAM Card is inserted, you will only be able to select the User Bank.  
J
Don’t use the DIRECT SELECT [1]—[0] buttons. Doing so will result in  
recalling a different Program and you will lose your changes.  
QuadraSynth Plus Piano Reference Manual  
50  
Overview: Chapter 4  
¬
Press [STORE] again to complete the operation.  
Or, Press any other button to cancel out of the Store operation without storing.  
QuadraSynth Plus Piano Reference Manual  
51  
Overview: Chapter 4  
Copying Effects Between Programs  
Follow the steps below to copy the Effects from one Program to another  
Program in the User Bank.  
¿
¡
Press [PROGRAM] to select Program Play Mode.  
Use the VALUE [Ø] and [` ] buttons to select the Program  
Number that uses the Effects you want to copy. If necessary, use the  
FUNCTION [¨ ] and [Æ] buttons to select a different Bank.  
¬
Press [STORE].  
Press PAGE [Æ] once to advance to Page 2.  
The top right section of the display will read “COPY TO SOUND 1”.  
ƒ
Turn Quad Knob [1] clockwise until the display reads “COPY  
FROM EFFECT”.  
This selects the Effects of the currently selected Program as the source of what is  
to be copied.  
H
Turn Quad Knob [2] to select the Program Number in the User  
Bank you wish to copy the Effects to (000–127).  
Press [STORE] to complete the copy function.  
Store an Effect  
If you have edited a Program’s Effect and would like to store it without  
storing the changes you’ve made to the Program’s parameters, you can  
use the Copy Effect function to store only the Effects edits to the  
currently selected Program. When you recall this Program, it will have  
the new Effects settings you saved it with, but will retain its previously  
stored Program parameter settings.  
Store a Mix  
¿
While in either Mix Play Mode or Mix Edit mode, after making  
your edits press the [STORE] button.  
¡
Select the memory Bank and location to which you want to store  
the Mix using Quad Knob [1] and [2]. respectively.  
If no RAM Card is inserted, you will only be able to select the User Bank.  
J
Do not use the DIRECT SELECT [1]—[0] buttons. Doing so will result in  
recalling a different Mix and you will lose your changes.  
¬
Press [STORE] again to complete the operation.  
J
QuadraSynth Plus Piano Reference Manual  
52  
Overview: Chapter 4  
Storing a Mix only stores the Mix parameters, not the individual Programs or  
Effect Patch used in the Mix. If you have edited any of the Programs in the Mix  
or the Effects Patch, you must store them separately.  
QuadraSynth Plus Piano Reference Manual  
53  
Overview: Chapter 4  
To Audition Programs Before Storing  
To look for available memory locations to permanently store your  
Program to, you can move between Program Mode and Mix Mode  
without losing your changes. This is because Program Mode has a  
Program edit buffer, and Mix Mode has its own Mix edit buffer along  
with 16 Program edit buffers. These buffers are retained when moving  
between Program Mode and Mix Mode, thus making it easy to search for  
a suitable location to store your newly created Program. Example: While  
in Program Edit mode, go to Mix Mode and scroll through the Program  
list on one of the Channels; while editing a Program from Mix Mode, go  
to Program Mode to scroll through the Program list.  
The way to tell the difference between a program edited in Program  
Mode and one edited from Mix Mode is simple: in Program Mode, the  
MIX number does not appear in the display.  
J
You will lose your changes if you remain in the same mode and recall a different  
Mix/Program by pressing the MIX/PROGRAM SELECT [1]—[0] buttons.  
To audition Programs before overwriting them with STORE  
…when editing a Program in Program Mode:  
¿
While in Program Edit mode, press [MIX].  
This selects Mix Play Mode, retaining your edits to the Program in an edit  
buffer.  
¡
Using the BANK and DIRECT SELECT buttons, select Mix 99 in  
Preset Bank 1.  
¬
Press [SELECT] to enter Mix Edit Mode, and press both MIDI  
[¨ ] and [Æ] buttons simultaneously to select Channel 1.  
Press the DIRECT SELECT [1] button (or both FUNCTION [¨ ]  
and [Æ] buttons simultaneously) so the words “PROGRAM – ASSIGN”  
are underlined.  
ƒ
Turn Quad Knob [1] to the left so that the word “USER” appears  
in the top part of the display, just before the Program name. If a RAM  
card is inserted, use Quad Knob [1] to select a Card Bank.  
H
Turn Quad Knob [2] to scroll through the Programs until you  
find one you wish to overwrite with the new edited Program. Take a  
note of the number.  
Press [PROGRAM] to enter Program Play Mode.  
This recalls the edit buffer in Program Mode, which is your edited Program.  
«
Press [STORE].  
QuadraSynth Plus Piano Reference Manual  
54  
Overview: Chapter 4  
The top right of the display will read “STORE PRG UsrXXX?” where XXX is  
a User Program number from 000—127.  
»
Use Quad Knob [2] to enter the Program number you noted in  
step 6. If necessary, use Quad Knob [1] to select a Card Bank.  
Press [STORE] again.  
The Program is now stored.  
QuadraSynth Plus Piano Reference Manual  
55  
Overview: Chapter 4  
To audition Programs before overwriting them with STORE  
…when editing a Program in Mix Edit Mode:  
¿
While in Mix Program Edit mode, press [PROGRAM].  
This selects Program Play Mode, retaining your edits to the Program in Mix  
Edit.  
¡
Press the BANK [¨ ] button until the word “USER” appears in  
the top part of the display, just before the Program name. If a RAM card  
is inserted, use the BANK buttons to select a Card Bank.  
¬
Use the VALUE [` ] and [Ø] buttons to scroll through the  
Programs until you find one you wish to overwrite with the new edited  
Program. Take note of the number.  
Press [MIX].  
This recalls the edit buffer in Mix Mode, which contains your edited Program.  
ƒ
Press [SELECT] twice, until “EDITING: PROGRAM” appears  
under the MIX number in the display.  
H
Press [STORE].  
The top line of the display will read “STORE PRG UsrXXX?” where XXX is a  
User Program number from 000—127.  
Use Quad Knob [2] to select the Program number you noted in  
step 3. If necessary, use Quad Knob [1] to select a Card Bank.  
«
Press [STORE] again.  
The Program is now stored.  
At this point your edited Program is stored, however the Mix you were  
auditioning before storing the Program still has the old Program number  
assigned (if the edited Program was saved to a different Program  
number location). Therefore, you need to re-select the new Program  
number from within Mix Edit mode.  
»
Press [MIX], then [SELECT] to access Mix Edit mode.  
Use the MIDI [¨ ] and [Æ] buttons to select the MIDI channel you  
want, and use the VALUE [` ] and [Ø] buttons or Quad Knob [2] to select  
the Program number. If necessary, use Quad Knob [1] to select the Bank.  
QuadraSynth Plus Piano Reference Manual  
56  
Overview: Chapter 4  
QuadraSynth Plus Piano Reference Manual  
57  
Editing Mixes: Chapter 5  
CHAPTER 5  
EDITING MIXES  
What is a Mix?  
Mix Mode is one of the most powerful features of the QuadraSynth Plus. While  
in Program Mode you can play only one Program at a time, in Mix Mode you can  
play up to 16 Programs at once, either from the keyboard (as layers or splits) or  
from an external sequencer (via 16 MIDI channels) or a combination of both.  
With Mix Mode, you can do the following:  
Combine ("stack" or "layer") different Programs so they can be played  
simultaneously from the keyboard. For example, stack a piano on top of a brass  
patch and a string patch, adjusting the volume of each for a desirable mix. (Note  
that the stacking of Programs in Mix Play Mode is in addition to any sounds that  
may be stacked in the four sound layers of each Program.)  
Split the keyboard into different zones--for example, the classic bass  
guitar on the left-hand side of the keyboard and synth or piano on the right. You  
can split the keyboard into as many as 16 zones.  
Transmit on several different MIDI channels simultaneously.  
Receive up to 16 MIDI channels from an external sequencer, with each  
channel representing a different instrument--piano on Ch. 1, bass on Ch. 2,  
drums on Ch. 10, trumpet on Ch. 16. Mix Play Mode is the multitimbral mode of  
the QuadraSynth Plus.  
Set the relative level, panning, and effect send of each MIDI channel.  
Mix Edit Mode  
To edit a Mix you must select Mix Edit mode. Press [SELECT] from Mix Play  
Mode. "Editing: Mix" should appear in the edit status section of the display:  
M
I
DI  
1
2
3
4
5
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Note: This illustration shows a Mix with all 16 MIDI channels enabled. If a channel is  
not enabled, its number will not show in the display unless the MIDI cursor is under the  
number.  
Editing a Mix begins with using the MIDI [¨ ] and [Æ] buttons to select the MIDI  
channel you want, and assigning a Program number for the channels you want  
QuadraSynth Plus Piano Reference Manual  
58  
Editing Mixes: Chapter 5  
to use. Each channel may be enabled or disabled, without changing any of its  
parameter settings. When a channel is disabled, its number will not appear in the  
upper left display, except when it is selected for editing. You can set levels, effect  
levels and bus assignments, pitch transposition, keyboard ranges (if making a  
split or layer), and MIDI parameters for each individual channel. Each function is  
selected using the FUNCTION [¨ ] and [Æ] buttons and (if necessary) the PAGE  
[¨ ] and [Æ] buttons. A Mix also uses the Effect Patch associated with one of its 16  
Programs.  
Here is a simplified diagram of the signal path in Mix mode.  
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Understanding the Edit Buffers  
In Mix mode, there are 16 Program edit buffers (one for each channel), plus  
another buffer for the Mix parameters (Level, Pitch, Range, etc.), and yet another  
buffer for the Effects Processor. When you select a Mix from memory, it is  
copied into the Mix Edit buffer, the 16 Programs of that Mix are copied into the  
16 edit buffers, and the Effect from one of the 16 Programs is copied into the  
Effects buffer. If you make changes to the Mix, they are only temporarily kept in  
the edit buffer until a new Mix is selected from memory. Therefore, you MUST  
store your edited Mix if you want to keep it.  
If in the course of making a Mix, you enter Program Edit mode (by pressing  
[SELECT]) and edit one or more Programs in the Mix, the edits you make are  
entered into a separate buffer for each Program in the Mix. Note, however, that  
you DO have to STORE each edited Program in the User bank (in the same or  
different Program number location) before selecting a different Mix, or your  
QuadraSynth Plus Piano Reference Manual  
59  
Editing Mixes: Chapter 5  
changes will be lost. The same goes for editing the Effects, which will be stored  
with its associated Program. If you select another Mix before storing, your  
changes will be lost.  
QuadraSynth Plus Piano Reference Manual  
60  
Editing Mixes: Chapter 5  
Program Assign for each MIDI Channel  
The first function of Mix Edit is Program Assign.  
Program Bank (User, Preset 1–4, Card)  
This determines which Bank the selected Program is located in  
for the selected MIDI channel. There are five Banks available in  
the QuadraSynth Plus. If you insert a QuadraCard Sound Card,  
you can have even more Banks.  
Program Number (000 to 127)  
This determines the Program Number (000—127) for the selected  
MIDI channel.  
Enable (On or Off)  
This determines whether the Program on the selected channel is  
enabled or disabled. When disabled, no sound will be generated  
by the QuadraSynth Plus. The Channel number in the display  
for a disabled channel will not appear except when selected for  
editing.  
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Even if a channel is enabled here, it will not play unless the proper  
settings in the RANGE function (MIDI IN and/or KEYBOARD  
On/Off and LOW/HIGH) are made.  
Level Setting for Each Program  
The second function of Mix Edit is Level.  
Level (00 to 99)  
This sets the overall volume for a sound. Higher numbers give  
higher levels.  
Pan (<3 to 3>, or PG )  
This determines the pan position of the selected channel. When  
set to PG, the panning setting will be that of the Program  
assigned to the selected channel. However, you can override this  
setting by selecting a different value, thereby assigning the  
channel’s panning between the left and right outputs of either  
the MAIN or AUX outputs (depending on the Output  
assignment--see below).  
Output (MAIN, AUX, OFF, or PROG)  
This determines the audio output assignment for the selected  
channel. When set to PROG, the channel will use the Output  
assignment of the Program. However, you can override this  
assignment by setting this parameter to something different.  
Selecting MAIN or AUX will assign the channel to the MAIN or  
QuadraSynth Plus Piano Reference Manual  
61  
Editing Mixes: Chapter 5  
AUX audio outputs. When set to OFF, the channel will not be  
sent to either set of outputs (but can still feed an effect bus).  
QuadraSynth Plus Piano Reference Manual  
62  
Editing Mixes: Chapter 5  
Pitch  
The Pitch function lets you transpose a channel’s Program in either semitone or  
octave increments. By using both parameters together, you have a total  
transposition range of ±3 octaves.  
Octave (-2 to +2 octaves)  
This transposes the Program’s pitch in octave (12 semitone) steps  
from -2 (transposed down 2 octaves) to +2 (transposed up two  
octaves).  
Semitone (-12 to +12 semitones)  
This transposes the Program’s pitch in semitone steps, from -12  
(transposed down one octave) to +12 (transposed up one octave).  
Setting the Range and MIDI Switches  
Each sound can be restricted to a specific range of the keyboard. This is ideal for  
creating splits (e.g., bass in the lower octave and a half, piano in the middle three  
octaves, and strings in the upper octave). When you start to setup a MIX, it may  
be confusing if many of the channels have their Keyboard parameter turned off.  
In order to hear anything on a particular channel, enable Keyboard control and  
set the Range so that the low note and high note values are set beyond where you  
want to play. Look at the MIDI MONITOR section of the display. A thick line  
will appear above any active MIDI channels as you play notes or send notes to  
the QuadraSynth Plus from a sequencer on those channels.  
Range (Page 1)  
Lower Limit (MIDI note 000 to 127/ C-2 to G8)  
Specifies the lowest note of the sound’s keyboard range. You can  
set the lower limit by holding Quad Switch [1] and tapping the  
key on the keyboard you want to set as the lowest note in the  
range.  
High Limit (MIDI note 000 to 127/ C-2 to G8)  
Specifies the highest note of the sound’s keyboard range. You  
can set the high limit by holding Quad Switch [2] and tapping  
the key on the keyboard you want to set as the highest note in  
the range.  
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If the lower limit is set above the high limit, there will be no sound from  
this program layer.  
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63  
Editing Mixes: Chapter 5  
QuadraSynth Plus Piano Reference Manual  
64  
Editing Mixes: Chapter 5  
Range (Page 2)  
MIDI In (On or Off)  
This determines whether or not the selected channel will  
respond to incoming MIDI messages.  
MIDI Out (On or Off)  
This determines whether or not the selected channel will  
transmit MIDI messages.  
Keyboard (On or Off)  
This determines whether or not the selected channel will  
respond to the keyboard, pitch-bend and mod wheels, foot  
pedals and sustain pedal of the QuadraSynth Plus itself.  
Range (Page 3)  
The following four parameters determine whether or not specific types  
of MIDI information will be received or transmitted, and are set  
separately for each Channel in the Mix. These, however, are dependent  
on how the individual Channels have their Range Page 2 parameters set  
(described above).  
Pitch-bend and Modulation Wheels (On or Off)  
This determines whether or not the selected channel will  
transmit and receive pitch-bend and modulation (controller 1)  
MIDI information.  
Aftertouch (On or Off)  
This determines whether or not the selected channel will  
transmit and receive aftertouch MIDI information.  
Sustain Pedals (On or Off)  
This determines whether or not the selected channel will  
transmit and receive sustain pedal (controller 64) MIDI  
information.  
Controllers (On or Off)  
This determines whether or not the selected channel will  
transmit and receive MIDI controller information which the  
Controllers A–D and Pedals 1 & 2 are assigned to (these are  
assigned to MIDI controllers in Global Mode, Page 3 and 5).  
Transmitting MIDI Volume and Panning  
Each Channel in a Mix can transmit its volume and panning settings via  
MIDI, if the “MIDI Prog Select” parameter is set to “On” (Global Edit  
Mode, Page 6, Quad Knob [1]). Volume level is sent as MIDI controller  
#7, and panning is sent as controller #10. If the “MIDI Prog Select”  
parameter is set to “On:"  
whenever a Mix is recalled (via the front panel or via MIDI),  
volume and panning information will be transmitted;  
QuadraSynth Plus Piano Reference Manual  
65  
Editing Mixes: Chapter 5  
whenever a Channel’s “Level” parameter is edited, volume  
information will be transmitted as controller #7 on that Channel;  
whenever a Channel’s “Pan” parameter is edited, panning  
information will be transmitted as controller #10 on that Channel (except  
when set to “PRG”).  
Note: Panning information will not be transmitted if the Channel’s “Pan“  
parameter is set to PRG (using the selected Program’s stored Pan  
setting).  
Effects in Mix Play Mode  
In Mix Play Mode, you can have only one Effect Patch active per Mix, which will  
be the Effects Patch associated with one of the Programs used in the Mix.  
However, the Mix’s Effect Patch still has 4 independent effect buses, and you can  
set the effect send level and routing from each Program layer to the effects  
processor.  
The QuadraSynth Plus offers you a choice of what parameters to use for effects:  
The Effect Channel determines which one of the Programs in the Mix  
you want to use the Effects Patch from. For example, if the Effect Channel is set  
to 10, you will use whatever effect is used by the program on MIDI channel 10.  
The effect levels and bus assignments of the Program on each Channel  
can be set directly by the Mix, or you can use the same levels and buses that were  
stored in each Program.  
Effect Level  
The Effect function is where each channel may be given its own Effect  
Level and Effect Bus assignment.  
Effect Level (00 to 99, or PROG)  
This determines the amount of signal from the selected channel  
that will be sent to the effects, using one of the four effects buses  
as determined by Quad Knob [2].  
Effect Bus (1, 2, 3, 4, or PROG)  
Quad Knob [2] determines which effect bus the selected channel  
will be routed to. When set to PROG, the effect bus assignment  
will be that stored by the channel’s Program. 1, 2, 3 or 4  
overrides the Program’s bus assignment, sending all sound  
layers of the Program to the chosen bus.  
Effect  
The Effect function is where you select what Effect Patch will be used by  
the Mix, by linking the Effect to one of the Programs in the Mix.  
FX Channel (1 to 16)  
QuadraSynth Plus Piano Reference Manual  
66  
Editing Mixes: Chapter 5  
The Effect Channel determines which channel’s Program’s Effect  
Patch will be used for the entire Mix. In other words, when the  
Effect Channel is set to 3, the Mix will use the Effect Patch used  
by the Program assigned to channel 3.  
FX MIDI (On or Off)  
This determines whether the Effects settings will change along  
with its Program, if a MIDI program change is received on the  
Effect Channel. If on, and a MIDI program change is received, a  
new Program will be recalled along with its associated Effect  
Patch. This, however, can change the way the other Programs in  
the Mix sound, since they all share the same Effects Patch. If you  
want to recall Programs via MIDI program changes, but want to  
continue using the same Effects Patch, leave this parameter  
turned off.  
If a program change is received on the Effects Channel and the  
FX-MIDI parameter is off, the Program will change to the new  
number (as determined by the program change number that was  
received) and the Effects Patch will also change to a new  
number. However, the previous Effects Program will be copied  
into the Mix’s Effects buffer and the word “EDITED” will appear  
next to the Effects Patch number. This indicates that, although  
the Effects Patch number coincides with the Program number on  
the Effects Channel, the Mix is still using the Effects Program  
connected to the original Program on the Effects Channel that is  
stored in the Mix. If you store the Mix, the newly selected  
Program on the Effects Channel will be stored with it. The next  
time this Mix is recalled the new Program on the Effects Channel  
will be recalled along with its Effects (which will be different, in  
most cases, from the Effects originally used with this Mix). If this  
occurs, and you wish to keep the new Program in the Mix, you  
could copy the Effects from the old Program into the new  
Program (see the Store Mode section, later in this chapter). Or,  
you could adjust the Effects Send level and Effects Bus  
parameter for the remaining Channels so that their associated  
Programs sound good with the new Effects. Or, you could  
modify the new Program's Effects.  
Naming a Mix  
The Name function allows you to change the name of the Mix. The Mix name can  
be up to 10 characters long. Use the PAGE [¨ ] and [Æ] buttons to position the  
cursor. Quad Knob [1] selects the character. Here is a chart of available  
characters:  
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QuadraSynth Plus Piano Reference Manual  
67  
Editing Mixes: Chapter 5  
Polyphony in Mix Play Mode  
The QuadraSynth Plus has 64-note polyphony. In Mix Play Mode, if you have all  
16 MIDI channels assigned to the same keyboard range, and each channel's  
Program has only one active Program Sound, you’ll have 4-note polyphony as  
you play the keyboard (but a really thick layer...). This is extreme, of course, but  
should tell you what you can expect when you really pile on the layers from the  
keyboard.  
Using the QuadraSynth Plus as a Master Keyboard  
Mix Play Mode gives the QuadraSynth Plus the capabilities of a MIDI master  
keyboard. You can layer the QuadraSynth Plus’s internal sounds with an  
external synthesizer's sounds without using up internal polyphony by adjusting  
the proper parameters in the Mix Edit mode.  
Example: You can have 2 layers (or a split) played directly from the QuadraSynth  
Plus, simultaneously playing on external synthesizers using a MIDI channel  
which has its internal QuadraSynth Plus’s sound turned OFF.  
Setting MIDI Out Channels for Mix in Global Mode  
The QuadraSynth Plus offers a wide variety of ways to set the MIDI output. It is  
very easy in Program Play Mode; you just use the MIDI [¨ ] and [Æ] buttons to  
set the MIDI OUT channel for the whole instrument. But when using the  
QuadraSynth Plus in Mix Play Mode, you need to be able to transmit on several  
MIDI channels at once, and to temporarily isolate certain channels within a Mix.  
This is done with the Keyboard Mode function.  
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From Mix mode, press [GLOBAL].  
Press PAGE [Æ] to get to Page 2.  
Press Quad Button [4].  
You will see "KBD MODE: " in the top right of the display.  
Use the VALUE [Ø] and [` ] buttons or Quad Knob [4] to set the  
Keyboard Mode.  
The options are: NORMAL, CH SOLO and OUT 1 — OUT 16.  
NORMAL. In this mode, the MIDI channels sent out will correspond to  
whatever layers or splits the Mix is set up for. For example, in the Preset Mix  
bank, there are several Mixes in which the keyboard is split in two or more ways  
from left to right; each of these “zones” is linked to a different set of channels. As  
you play through each zone, it will send MIDI messages corresponding to that  
key range and trigger the corresponding channels. Note that certain controllers  
such as pitch bend and aftertouch will send on all channels at once. The MIDI  
Monitor indicators in the display will show which channels are active.  
CH SOLO. In this mode, the only sounds coming from the QuadraSynth Plus,  
and the only MIDI Out messages, will come from the layer or range of the  
underlined MIDI channel in the display. This allows you to isolate individual  
channels in a Mix. So, if you play in a range of the keyboard that is active on  
QuadraSynth Plus Piano Reference Manual  
68  
Editing Mixes: Chapter 5  
MIDI CH 1, and 1 is underlined, you'll hear it. All other ranges or layers will not  
respond to the keyboard (they will continue to respond to incoming MIDI  
messages on their respective channels, however).  
Use the MIDI [¨ ] and [Æ] buttons to hear each channel in turn.  
OUT 1 — OUT 16. The QuadraSynth Plus will generate MIDI messages from the  
keyboard, regardless of the Range settings for that channel in the Mix, but it will  
not play the internal sound. Use this mode if you're using a MIDI sequencer  
with an ECHO feature--the sound will be activated by messages appearing at the  
MIDI IN connector after it’s made the “round trip” through the sequencer. This  
is the QuadraSynth Plus’s equivalent to LOCAL OFF.  
QuadraSynth Plus Piano Reference Manual  
69  
Editing Programs: Chapter 6  
CHAPTER 6  
EDITING PROGRAMS  
Overview  
Synthesizer programming is the art and science of shaping sounds in a particular  
way by altering the parameters of various modules. Like music itself, learning  
synth programming is an ongoing process. Although this manual presents  
information about synthesizer programming, no manual can offer a complete  
course in programming (at least for a price that customers would be willing to  
pay!).  
If you’re new to synthesizer programming, the best way to learn is to adjust  
different parameters as you play to discover how different parameter values  
affect the sound. Also, become familiar with the signal and modulation flow  
within the QuadraSynth Plus (as shown in the various block diagrams included  
in this manual) so that you can understand the many ways in which you can  
process a signal as it works its way from oscillator to output.  
The “Normalized” Synth Voice  
The first synthesizers were comprised of various hardware modules, some of  
which generated signals, and some of which processed those signals. These were  
designed to be general-purpose devices since nobody was quite sure how they  
would be applied; some engineers used them as signal processors, while  
keyboard players treated them as musical instruments. Therefore, patch cords  
connected the inputs and outputs of the various signal generating and processing  
modules (which is why particular synth sounds were called patches). Changing a  
patch involved manually repositioning patch cords and adjusting knobs and  
switches; recreating a patch required writing down all the patch settings on  
paper so they could be duplicated later. Even then, due to the imprecision of  
analog electronics, the patch might not sound exactly the same.  
Over the years, certain combinations of modules seemed to work better than  
others, and since patch cords were troublesome to deal with, eventually these  
modules were wired together in a "normalized" configuration. Synthesizers such  
as the MiniMoog, Prophet-5, and others eliminated the need for patch cords by  
containing a normalized collection of sound modules (including oscillators, filter,  
envelopes, LFOs, etc.).  
The QuadraSynth Plus offers the best of both worlds. The most commonly-used,  
normalized configurations are built-in to every program for ease of  
programming. In addition, the QS Modulation Matrix gives back much of the  
flexibility of a modular synthesizer, allowing you to map various modulation  
sources to multiple destinations for special needs. If you’re a beginner, all of the  
normalized pathways are easy to find; as you gain experience you can explore  
more advanced features.  
QuadraSynth Plus Piano Reference Manual  
70  
Editing Programs: Chapter 6  
How the QuadraSynth Generates Sound  
The QuadraSynth Plus uses custom integrated circuits, developed by the Alesis  
engineering team specifically for the QuadraSynth Plus. These resemble the  
types of chips used in computers and other digital devices. In fact, you can think  
of the QuadraSynth Plus as a special-purpose computer designed to generate  
and process audio. Although the user interface maintains the metaphor of  
“modules,” in fact all sounds are simply a set of numbers reflecting how you’ve  
programmed the various sound parameters. For example, when you change the  
filter cutoff frequency, you’re not actually messing with a filter; you’re telling the  
computer to simulate the effect of messing with a filter.  
Each "module" is represented by parameters that appear on one or more display  
pages. The Quad Knobs and Buttons change these parameters. All "patching" is  
done via software, so the only patch cords you need are those that go to your  
mixer or amplifier.  
You can take a "snapshot" of the QuadraSynth Plus’s parameters and save this in  
memory as a program. The QuadraSynth Plus comes with 512 factory preset  
programs, and 128 user-editable programs.  
Program Sound Layers  
The simplest method of programming is to take one voice, process it through the  
filter and amp sections, and (if desired) add some effect to it. However, more  
elaborate Programs usually consist of 2 to 4 layers, with each layer making its  
own distinct contribution to the sound, for example:  
An organ program with Program Sound 1 set to a sustained organ  
waveform, and Program Sound 2 set to a percussion waveform with a fast decay.  
A piano program with one layer tuned normally, and a second layer  
tuned an octave higher.  
A synthesizer program with one layer set to a sharp attack waveform, a  
second layer set to an acoustic waveform, and a third layer with a slow-attack  
string waveform.  
This may remind you of Mix Play Mode, where playing the keyboard can sound  
up to 16 different Programs at once. There are many similarities. In Mix Play  
Mode, you can make the same kind of layered Mix as you can with the four  
sounds of a Program. But there are differences:  
Use Program Layers:  
If you want multiple sounds to respond to a single MIDI channel. For  
example, if you need to play a layered synthesizer sound that was assembled in  
Mix Play Mode instead of Program Play Mode, you must send 3 Note On  
QuadraSynth Plus Piano Reference Manual  
71  
Editing Programs: Chapter 6  
messages from your sequencer (one for each channel) for every note; a layered  
program would need only one Note On message.  
When layers of a Program are designed to be used together, and the  
individual layers by themselves wouldn't be used alone (for example, the  
percussion layer of the organ sound).  
Use Mix Play Mode:  
When you want to layer more than four voices. In Mix Play Mode, it is  
possible (though not advisable) to stack all 64 voices onto a single key.  
When each sound is likely to be used by itself by other setups. For  
example, if you are programming three different keyboard splits, each of which  
uses the same left-hand bass patch, it makes sense to use Mix Play Mode.  
When you want different sounds to respond to different MIDI channels.  
QuadraSynth Plus Signal Flow  
The Four Sounds of a Program  
Each Program is made up of at least one to four sounds. A sound is  
made up of several components including a voice (the original sound  
material) which passes through a low-pass filter and an amplifier. The  
voice, filter and amp modules each have direct modifiers (Pitch LFO,  
Filter LFO, Amp Envelope) which affect how each will function in the  
Program. You can layer these sounds together, or divide them into  
regions of the keyboard, or a combination of these things.  
The following diagram illustrates the signal flow within each  
QuadraSynth Plus Program.  
QuadraSynth Plus Piano Reference Manual  
72  
Editing Programs: Chapter 6  
Let’s look at each module’s function in detail.  
Voice  
This digitally-based oscillator provides the actual raw sounds from the  
24 megabyte library of on-board samples. The oscillator's pitch can be  
tuned to a fixed frequency or modulated. Modulation is the process of  
varying a parameter dynamically over time; the oscillator pitch can be  
modulated by envelope, keyboard, pressure, pedal, LFO, and other  
control sources (described later).  
Note that the waveforms in the QuadraSynth Plus are different from  
those found in samplers or many sample-playback units. Because the  
QuadraSynth Plus has its own filter module and amplitude module for  
each voice, the pure waveforms are relatively bright--as bright as the  
original instrument can be--and have a constant sustaining amplitude,  
like an organ. So if you listen to a piano voice without setting the filter  
or amp to the correct settings, it won't decay after it is hit, as you might  
expect. This gives you the freedom to create the timbre and dynamics  
you want, instead of being chained to the parameters of the original  
sample.  
Lowpass Filter  
A lowpass filter varies a signal's harmonic content by progressively  
increasing attenuation above a specified cutoff frequency. The higher  
frequencies are filtered, while the lower frequencies are allowed to  
“pass-thru.” When the cutoff frequency is set high, the sound becomes  
brighter; when set low, the sound becomes bassier since fewer harmonics  
are present.  
QuadraSynth Plus Piano Reference Manual  
73  
Editing Programs: Chapter 6  
Static (non-changing) filter settings can be useful, but varying the filter  
cutoff dynamically over time often produces more interesting effects.  
Modulating with velocity produces brighter sounds with louder  
dynamics, which produces a more accurate acoustic instrument  
simulation. Modulating with an envelope can create a pre-defined  
change in harmonic structure, such as having a brighter attack and  
bassier decay.  
Amp  
Each voice/filter combination is followed by an amplifier whose level  
can be controlled by a variety of modulation sources. This allows for  
creating sounds with percussive or slow attacks, particular types of  
decays, tremolo, etc.  
Filter and amp settings can interact. If the filter cutoff is extremely low,  
then no signal will get through, no matter how the amp is set. Similarly,  
setting the amp for a short decay won’t let you hear any filtering set for a  
longer decay. This is because the volume will reach zero before the filter  
decay finishes.  
About Modulation  
Modulation modifies some aspect of a sound over time. Since oscillators make  
static sounds (unlike acoustic instruments, whose timbre and dynamics change—  
often radically—over the duration of a note), modulation is the key to making  
rich and expressive sounds. The vibrato of a flute, the expression pedal of an  
organ, a wah-wah pedal on a guitar--all of these are examples of modulation.  
You're probably familiar with the mod wheel of a synthesizer, that typically adds  
vibrato to a Program as it is raised. But in synthesizer programming, modulation  
is used to control even the basic characteristics of a voice: its attack, decay, and  
release times, for example. Every box in the signal diagram on page 51 pointing  
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towards the Voice, Filter, or Amp boxes is a modulation source. The amount of  
modulation, the time it takes place, and what controls (such as key velocity,  
footpedals, aftertouch, mod wheel etc.) affect it are important parameters in  
every Program. The QuadraSynth Plus provides the modulation flexibility of  
patch cord-based instruments, but with the convenience and ease of use of digital  
technology.  
With some parameters, the modulation amount can be positive or negative. A  
positive control signal increases the value of the parameter being controlled. A  
negative control signal decreases the value of the parameter being controlled.  
Setting modulation to 00 turns off the modulation source. Example: Keyboard  
velocity can either make a sound brighter the harder you play, or make it less  
bright, or have no effect on the filter at all. You have the freedom to set  
modulation any way you want, even in ways that are the opposite of what they  
would be on an acoustic instrument.  
If a "baseline" setting exists for a parameter, modulation amounts add or subtract  
values from the existing setting. However, modulation cannot force a value  
beyond its maximum range. For example, if the amp is already at its minimum  
value (lowest level), you could apply positive modulation to raise the level. But  
applying negative modulation will not affect the amp level, since it's already at  
its lowest value and cannot go any lower.  
The QuadraSynth Plus lets you assign several modulation sources to one  
modulation “target” parameter, which allows for interaction between two  
modulation signals. Example: If the amp parameter responds to both the  
envelope generator and a pedal, the parameter will follow the general envelope  
shape but will also be influenced by the pedal.  
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LFO (Low Frequency Oscillator)  
The pitch, filter, and amp modules each have a dedicated LFO module  
for modulation. The term LFO stands for low frequency oscillator, and  
comes from how modulation was created in the early synth days (an  
oscillator set to a low frequency could modulate some aspect of the  
sound; routing the LFO to the pitch, for example, would create vibrato).  
The LFO creates a cyclic (periodic) modulation; this amount can be  
constant and/or varied with a variety of modulation sources (mod wheel  
is one of the most popular). Each LFO has a waveform shape and speed,  
along with other controls.  
Envelopes  
Envelope generators provide a modulation signal that varies over time,  
from the time you strike the key until after you let go. There are three  
independent envelope generators (for pitch, filter, and amp) in each  
Program Sound. An envelope generator has different effects on different  
modules. Example: The Amp Envelope creates level changes. Amplitude  
that decays over time creates percussive effects (plucked strings, drums,  
etc.). Amplitude that increases over time gives the effect of brass,  
woodwind, and some bowed instruments.  
Each envelope generator has the standard attack, decay, sustain, and  
release parameters found on most synthesizers, along with delay, sustain  
decay, and different triggering options.  
About Signal Processing  
The QuadraSynth Plus features a signal processing section based on the Alesis  
QuadraVerb 2. It is a complete digital signal processing unit with four input  
buses, simultaneous multiple effects, and flexible signal routing.  
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Effects parameters are edited separately from either the Program or the Mix,  
using Effects Edit Mode (more in Chapter 7). In Program Edit Mode, each of the  
four sounds in the Program has its own Effect Level control and can be assigned  
to any one of the four effect buses. Effects settings, Effect Level and Bus  
information is saved with the Program when you store it back into memory.  
Drum Mode  
Any one or all of the four sounds in a Program can be put in Drum Mode. The  
Drum Mode parameter is found in the Misc. Function (see last section of this  
chapter). Note that Drum Mode isn’t the only way to hear drums or percussion  
from a Program. In Standard mode, if you select a kit (such as “Rock Kit 1”) as  
the voice of a Program sound, an entire arrangement of preset, pre-mapped  
drum sounds will be assigned across the keyboard. If you select a single drum  
(such as “Tympani”) as the voice, that single drum sound will sound across the  
keyboard range, with a different pitch on each note (the original sample pitch  
will appear on C3).  
However, Drum Mode changes the nature of the ASSIGN VOICE function,  
allowing you to make up your own drum kit from a selection of over 80 different  
samples: 7 kicks, 8 snares, 4 hi-hats, 14 toms, 5 cymbals, 31 percussion, 17  
percussion effects and 3 synth waves. Plus, there are 44 rhythm beats to choose  
from (pre-sequenced drum grooves). You can map any of these samples to any  
note on the keyboard that does not already have a drum assigned to it in that  
layer. When a sound is in Drum Mode, you can assign 10 different drum sounds  
to 10 different keys in that layer. If all four sounds in a Program are placed in  
Drum Mode, you could assemble 40 drum sounds. In Drum mode, individual  
drums cannot be “stretched” across a wide range of the keyboard -- each  
occupies up to 4 keys.  
Each of the 10 drum sounds has its own set of parameters in each of the functions  
in the display (Pitch, Filter, Range, Effects Level, etc.). You can use Quad Knob  
[4] in each Function page to select which one of the 10 drum sounds to edit.  
Here is a block diagram of a sound in Drum Mode.  
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When Drum Mode is enabled, the sound will have fewer parameters for editing.  
Consequently, not all Function labels will appear in the LCD display as when  
Drum Mode is turned off. Specifically, the LFOs and all Envelopes (with the  
exception of the Amp Envelope) are unavailable. In addition, the parameters in  
most other functions will differ.  
J
When using Edit 4 mode, sounds using Drum Mode will be unavailable for editing; only  
sounds not in Drum Mode will be editable in the bargraph display. If a sound is in Drum  
mode, the display will show “drmX,” whereby X is the sound number (1–4).  
If you enable Drum Mode for a sound while in Edit 4 mode, the QuadraSynth  
Plus will automatically switch to Edit 1 mode for that layer.  
Program Edit Functions  
Assign Voice  
To edit a Program you must select Program Edit mode. Press [SELECT]  
from Program Play Mode. "Editing: Program " will appear in the  
display’s edit status section:  
The Assign Voice function is the most fundamental part of Program  
editing. It is where you choose the particular sample that forms the basis  
of a sound. To avoid scrolling through long lists of samples (remember,  
there are 24 megabytes of sounds in here!), sounds are divided into  
groups. After selecting the group, you then select the sample within the  
group.  
Group (16 options)  
Choose from among 16 different onboard sample groups (see  
chart in next section).  
Name  
Selects one of the available samples by name from the selected  
group, or OFF (no sample selected). Each group has a variety of  
samples from which you can choose, although some groups  
(such as waves) have more samples than others.  
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On the following page, you’ll find a chart listing the various  
samples in their respective groups.  
Group  
Piano  
Voice  
GrandPiano, Dark Piano, No Hammer, Piano wave, BrtRhdsHrd, BrtRhdsSft,  
BrtRhdsVel, MidRhdsHrd, MidRhdsSft, MidRhdsVel, Rhdes Hard, Rhdes Soft, Rhdes  
Velo, DynaRhds 1, DynaRhds 2, FM Piano, Wurlser, AcousPiano, BritePiano,  
PianoModul  
Organ  
FullDrwbar, 3 Drawbars, Jazz Tone, Percus 2nd, Percus 3rd, Mellow, DrtyChurch, 60’s  
Combo  
Keybrd Clavinet, FMClav Hrd, FMClav Sft, FMClav Vel, Harpsicord, FM Harpsi, Marimba  
Hd, Marimba Sf, Marimba V, FMMrmba Hd, FMMrmba Sf, FMMrmba V,  
MrmbaWave, Vibraphone, VibesWave, Glock, FM Pluck H, FM Pluck S, FM Pluck V,  
FMPlukWave  
Synth  
SyncSweep1, SyncSweep2, SyncSweep3, SyncSweep4, SyncSweep5, SncSweepV1,  
SncSweepV2, MicroWave1, MicroWave2, MicroWave3, MicroWave4, MicroWaveV,  
FiltSweep1, FiltSweep2, FiltSweep3, FiltSweep4, FiltSweep5, FiltSweep6, FiltSweep7,  
FltSweepV1, FltSweepV2, DigtlStik1, DigtlStik2, DigtlStik3, DigtlStikV, AnalogSqr1,  
AnalogSqr2, AnalogSqr3, AnalogSqr4, AnalogSqrV, SyncLead 1, SyncLead 2,  
SyncLead 3, SyncLead 4, SyncLead 5, SyncLead V,MicroPerc1, MicroPerc2,  
MicroPerc3, MicroPercV, Perc Filt1, Perc Filt2, Perc FiltV, Analog Buzz1, AnalogBuzz2,  
AnalogBuzz3, AnalogBuzz4, Analog Res, FM Bell, Whistle  
Wave  
Pure Sine, 10% Pulse, 15% Pulse, 20% Pulse, 25% Pulse, 33% Pulse, 50% Pulse, Velo  
Pulse, Mini Saw, Saw Fltr 1, Saw Fltr 2, Saw Fltr 3, Saw Fltr 4, Saw Fltr 5, Saw Fltr 6,  
Saw Fltr 7, Velo Saw, MiniSquare, Sqr Fltr 1, Sqr Fltr 2, Sqr Fltr 3, Sqr Fltr 4, Sqr Fltr 5,  
Sqr Fltr 6, Velo Sqr, Mini Peak, Mini Tri, Tri Fltr 1, Tri Fltr 2, Tri Fltr 3, Tri 4, Velo Tri,  
Rectanglar, Rct Fltr 1, Rct Fltr 2, Rct Fltr 3, Rct Fltr 4, Rct Fltr 5, Rct Fltr 6, Rct Fltr 7,  
Velo Rect, Mini Thin, Thn Fltr 1, Thn Fltr 2, Thn Fltr 3, Velo Thin, HardSync 1,  
HardSync 2, HardSync 3, HardSync 4, HardSync 5, HardSync 6, HardSync 7, Velo  
HSync, Additive 1, Additive 2, Additive 3, Additive 4, Additive 5, Digital 1, Digital 2,  
Digital 3, Digital 4, Digital 5, Digital 6, Digital 7, Digital 8, Digital 9, Science 1, Science  
2, Science 3, Science 4, Science 5, Science 6, Noise  
Bass  
Brite Bass, StudioBass, Slap Bass, Velo Bass, Slap w/pop, Bass Pops, Fretless, Stik,  
Acoustic, Fat Synth, SynAcoustc, FM Bass, FilterBass, Bass Wave1, Bass Wave2, Bass  
Wave3  
Guitar  
Brass  
Nylon, Nylon Vel, Nylon Harm, Acoustic, AcoustcVel, AcoustHarm, 12Str Elec, 6 Str  
Elec, 6 Str Velo, 6 Str Harm, Power Gtr, AcoustHrm2, NylonHrm2, 6 Str Hrm2  
Ensemble, "Pows", Trumpet, Mute Trmpt, TrmpySplit, Trombone, Mute FHorn, Soft  
FHorn, Velo FHorn, Tuba Hard, Tuba Soft, Tuba Velo, Tuba Blats  
Wdwind Bassoon, Oboe, Clarinet, Flute Vibr, Flute, Bari Sax, Tenor Hard, Tenor Brth, Tenor  
Velo, Alto Sax, Soprano, Bari Combo, Sax Combo, FlutAtkVib  
String  
SoloViolin, Solo Viola, Solo Cello, Violin Ptz, Cello Ptz, Bass Ptz, Harp, Elect Harp  
Ensmbl Strings, AttkString, SynthStrng, TapeString  
Ethnic  
Voice  
Harmonia, FM Harmnca, EuroAccrdn, Elec Banjo, Asian Drum, Waterphone  
Choir Aahs, Choir Oohs, Voice EFX1, Voice EFX2, Voice EFX3, Aahs Wave, Oohs  
Wave  
SndFX Zap Attk 1, Zap Attk 2, Zap Attk 3, Mini Attk, Pop, Pop Attk, Bottle Hit, Metal Attk1,  
Metal Attk2, SambaWhstl, Alert, Android, Cyborg, Meteor, Supernova  
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Drums Stndrd Kit, Rock Kit 1, Rock Kit 2, Dance Kit, Stab Kick, Deep Kick, Spike Kick, Flap  
Kick, GarageKick, PillowKick, Elect Kick, Studio Snr, TurboSnare, PiccoloSnr, Crisp  
Snr, Power Snr, Dance Snr, Rimshot, Side Stick, Power Tom, Mid Tom, Floor Tom,  
Slam Tom, Cannon Tom, Closed Hat, Edge Hat, Open Hat, FootClosed, Cym Ride,  
Cym Bell, Cym Crash, Cym China, Cym Splash, Analog Kit, Brush Kit, Tribal Kit  
Percus Tympani, TbularBell, Orch Combo, Agogo, Bongo, Cabasa, Castanet, Clave, Conga  
Hit, Conga Slap, Cowbell, FingerSnap, Guiro Long, GuiroShort, Hand Clap, Log  
Drum, Maracas, Shaker, ShortWhstl, Tambourine, Timbale, Triangle, TriangleMt,  
Vibrasmack, Wood Block  
Rhythm PsiBeat 1, PsiBeat 2, PsiBeat 3, PsiBeat 4, PsiBeat 5, Kick Loop1, Kick Loop2, Kick  
Loop3, Kick Loop4, Kick Loop5, SnareLoop1, SnareLoop2, SnareLoop3, Backbeat,  
ClsdHHLoop, OpenHHLoop1, OpenHHLoop2, FootHHLoop, Ride Loop1, Ride  
Loop2, Ride Loop3, Tick Talk, Swingset, Bongo Loop, BlockLoop1, BlockLoop2,  
BlockLoop3, HiTriLpHd, HiTriLpSf, LoTriLpHd, LoTriLpSf, Tamb Loop1, Tamb  
Loop2, ShakerLoop, ShuflShakr, PopperLoop, BottleLoop, Motor, MiniNoizLp,  
HvyMetalLp, Machine Lp, Kah Loop, Bass Loop, SynBass Lp  
QSPlus Piano L, Piano R, BritePno1L, BritePno1R, DarkPno1 L, DarkPno1 R, PnoKnock L,  
PnoKnock R, Piano Trem, El.Piano1, El.Piano2, Drawbars, Perc.Organ, Pipe Organ,  
Clavinet, Varimba, Fretless, BritePno2L, BritePno2R, DarkPno2 L, DarkPno2 R,  
BritePno3L, BritePno3R, DarkPno3 L, DarkPno3 R, TapPiano L, TapPiano R,  
El.Spinet1, El.Spinet2, Toy Pno L, Toy Pno R, KeyTrack1, KeyTrack2, Stretch L, Stretch  
R, Analog Pad  
Level  
Each sound in a program can have its own level, pan position, and  
output assignment. With up to four sounds per program, this allows for  
a wide variety of stereo effects and level balances between the sounds.  
Volume (00 to 99)  
This sets the overall volume for a sound. Higher numbers give  
higher levels.  
Pan (<3 to 3>)  
There are 7 available pan locations in the stereo (two-channel)  
field: Far left (-3), mid left, near left, center (0), near right, mid  
right, and far right (+3). The pan value is maintained, even if the  
Output value is changed (see below).  
Output (Main, Aux, or Off)  
The Output parameter has three settings: Main, Aux, or Off. To  
send the sound’s output to the Main outputs, select Main. To  
send the sound’s output to the Aux outputs, select Aux. To turn  
off the sound’s output, set this parameter to Off.  
(Note, however, that the sound may still feed an Effect Send).  
To send a sound to an individual output, use Output in  
conjunction with Pan. Example: Panning a sound full left and  
selecting the Aux outputs means that the sound will appear at  
only the left Aux output.  
Effect Level  
The QuadraSynth Plus isn’t just a synthesizer; it also has a built-in effects  
system and mixer, with four effect buses and sends. This section lets you  
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feed the sound to one of the effect buses for processing. See Chapter 7 for  
more information on editing Effects.  
Level (00 to 99)  
Determines how much of the sound feeds the chosen effect bus  
(see below). Higher values mean that the sound will be more  
effected.  
Bus (1 to 4)  
Selects which of the four buses the sound will feed, thereby  
determining which effect(s) will process the sound. Each  
Program has its own unique arrangement of effects. Example: In  
Program #12, bus 1 may be a Chorus/Delay/Reverb, while in  
Program #27, bus 1 may just be a Flanger.  
Pitch  
Pitch (Page 1)  
Semitone (-24 to +24 semitones)  
Sets the oscillator pitch in semitone steps, from -24 (transposed  
down two octaves) to +24 (transposed up two octaves).  
Detune (-99 to +99 cents)  
Sets the oscillator pitch in cents, from -99 (transposed down  
99/100 of a semitone) to +99 (transposed up 99/100 of a  
semitone).  
Detune Type (Normal or Equal)  
With Normal selected, the percentage of detuning remains the  
same over the entire range of the keyboard, so the effects of  
detuning sound the same no matter which key you play. With  
Equal selected, the absolute amount of detuning remains the same  
over the entire keyboard, so any detuning seems less  
pronounced as you play higher up on the keyboard.  
Pitch (Page 2)  
Pitch Wheel Range (0 to 12 semitones)  
Determines the maximum amount of pitch bend when the pitch  
bend wheel is either full forward or back. Example: When set to  
12, the pitch wheel will bend ±1 octave (12 semitones).  
Aftertouch Depth (-99 to +99)  
At +00, aftertouch has no effect on pitch. Applying aftertouch  
(by pressing harder on the keyboard, or via MIDI messages)  
with this parameter set to a positive value raises the pitch;  
conversely, applying aftertouch through a negative value lowers  
the pitch. The higher the number (either positive or negative),  
the greater the amount of pitch change for a given amount of  
aftertouch.  
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Tip: Aftertouch is useful for creating keyboard-controlled string  
bend effects. Low settings are good for “humanizing”  
synthesized sounds, since aftertouch changes can give very  
slight pitch changes, as associated with acoustic instruments.  
Pitch LFO Depth (-99 to +99)  
At +00, the pitch LFO has no effect. Higher positive values  
increase the amount of Pitch LFO modulation. Negative values  
give the same apparent effect, but with reversed LFO phase (i.e.,  
if the pitch would normally be increasing with depth set to a  
positive number, the pitch would instead be decreasing at that  
same moment had the depth been set to a negative number).  
Pitch LFO parameters (such as speed and wave shape) are  
programmed within the PLFO Function (see page 67).  
Pitch Envelope Depth (-99 to +99)  
At +00, the pitch envelope has no effect. Positive values raise the  
pitch from the baseline according to the envelope shape, while  
negative values similarly lower the pitch. The higher the number  
(negative or positive), the greater the effect. Pitch Envelope  
parameters (such as attack and decay time) are programmed  
within the PENV Function (see page 71).  
Pitch (Page 3)  
About portamento: When you play a key and then a second key,  
normally the sound jumps instantly from one pitch to another.  
Portamento provides a sweeping glide from one note to another  
over a variable amount of time. A good example of this type of  
sound is a steel guitar, where a note slides from one pitch to  
another.  
Portamento (Exponential, Linear, 1 Speed)  
This provides the sweep’s “curve.”  
With an exponential curve, the pitch change seems to  
happen more rapidly at first, then slows down as it approaches  
the ending pitch.  
A linear curve produces a constant pitch change  
throughout the glide.  
Normally, the greater the interval (the pitch difference  
between the two notes), the longer the glide. For example, a  
glide between two notes a whole step apart would take much  
less time than a glide between two notes an octave apart. The 1  
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Speed curve maintains a constant glide rate regardless of the  
pitch difference between notes.  
Rate (0 to 99)  
Sets the glide duration. Higher numbers give longer glide times.  
The Rate value is affected by the Portamento value (see above).  
Keyboard Mode (Mono, Poly, 1-Pitch or 1-PMono)  
In Mono mode, you can play only one note at a time—just like  
vintage monophonic synthesizers or wind instruments. Poly  
mode allows you to play polyphonically. Note that portamento  
behavior is more predictable in mono mode.  
Tip: With a feedback guitar patch that uses one sound for the  
guitar and one sound for the feedback, setting the feedback  
sound to Mono Keyboard Mode insures that your feedback  
“whistle” will be monophonic, which more accurately mimics  
what happens when you play lead guitar.  
Use 1-PITCH mode when you want a program sound layer to  
play a single pitch polyphonically throughout the entire  
keyboard range. In 1-PITCH mode, the QuadraSynth Plus will  
play the sample used for note C3 for all notes in the range. 1-  
PITCH mode is often used for layering a noise or drum sound  
behind another sound that is pitched, for example, to fatten up a  
bass guitar sound with a hint of kick drum, or to have the same  
cymbal hit every time any note is played. Alternatively, 1-  
PMONO mode is a monophonic version of 1-PITCH.  
Sometimes when playing a monophonic instrument, you will not  
want the envelopes to retrigger when playing legato, as this  
would sound realistic. Imagine a flute-player beginning each  
note in a phrase with a sharp, breathy attack. In reality, the  
player would only attack the first note in the phrase this way.  
Therefore, if the Keyboard Mode is set to “Mono”, the three  
envelopes (PENV, FENV and FENV) will only retrigger when  
playing legato if the envelope's Trigger Mode is set to either  
“Reset” or “Reset-Freerun”.  
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Filter  
Filter (Page 1)  
Frequency (00 to 99)  
This sets the filter's initial cutoff frequency. Lower values give a  
duller sound since this removes more harmonics; higher values  
let through more harmonics, which gives a brighter sound.  
Tip: Signals with complex harmonic structures are most affected  
by the filter. Examples: A sine wave has virtually no harmonics so  
you will not hear any significant changes as long as the filter  
cutoff is higher than the note pitch. If the filter cutoff is lower  
than the note pitch, you will either not hear the note, or it will be  
very soft. A harmonically-rich sample (such as brass or white  
noise) will be greatly affected by the filter.  
If the Filter Frequency is set to maximum, in most cases all other  
variables in the Filter function will have no effect. Most other  
filter functions raise the filter frequency, and it can't be greater  
than 99. So if you want to use filter effects, proper setting of this  
initial cutoff frequency is crucial. This is the "baseline" from  
which all other filter parameters will raise or lower (open or  
close) the filter.  
If the Filter Frequency is set to 00, and no other parameters are  
set to raise it dynamically, no sound will pass through the filter  
at all--there will be silence. If the Amp settings are wide open  
and you can't hear anything, check the Filter Frequency setting.  
Since the waveforms in ROM are recorded at the brightest  
possible setting, in many cases dynamic filtering is crucial to  
making a program sound natural.  
Keyboard Track (On or Off)  
When off, the filter cutoff remains constant across the keyboard.  
Higher notes will be more affected than lower notes, since the  
filter cutoff is comparatively lower for higher notes than lower  
ones.  
When on, the filter frequency tracks the keyboard pitch.  
Therefore, if using the filter creates a particular harmonic  
structure when you play one key, playing a different key will  
shift the filter frequency to maintain the same harmonic  
structure.  
Velocity (-99 to +99)  
At +00, velocity has no effect on the filter cutoff. With positive  
values, playing harder increases the filter cutoff. More positive  
values drive the cutoff frequency higher for a given amount of  
velocity. More negative values drive the cutoff frequency lower  
for a given amount of velocity.  
Tip: Many acoustic instruments, such as acoustic guitars, sound  
brighter when you play them more forcefully. Adding a little  
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positive velocity control over the filter can simulate more  
realistic acoustic sounds.  
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Filter (Page 2)  
Modulation Wheel Depth (-99 to +99)  
Determines how moving the modulation wheel affects the filter  
cutoff frequency. Example: With positive settings, moving the  
modulation wheel up raises the filter cutoff frequency and  
moving it down lowers the filter cutoff frequency. With negative  
settings, moving the modulation wheel up lowers the filter  
cutoff frequency and moving it down raises the filter cutoff  
frequency .  
Aftertouch Depth (-99 to +99)  
At +00, aftertouch has no effect on the filter cutoff frequency.  
Applying aftertouch with this parameter set to a positive value  
raises the filter cutoff frequency; conversely, applying aftertouch  
with a negative value lowers the filter cutoff frequency. The  
higher the number (either positive or negative), the greater the  
effect for a given amount of aftertouch.  
Tip: Many acoustic instruments sound brighter as you play them  
more forcefully; in particular, brass gets brighter as you blow  
harder. Using aftertouch to increase a sound’s brightness can  
give more control and realism with acoustic instruments.  
Filter LFO Depth (-99 to +99)  
At +00, the filter LFO has no effect. Higher positive values  
increase the amount of filter LFO modulation. Negative values  
give the same apparent effect, but with reversed LFO phase (i.e.,  
if the filter cutoff frequency would normally be increasing with  
depth set to a positive number, the cutoff would instead be  
decreasing at that same moment had the depth been set to a  
negative number). Filter LFO parameters (such as speed and  
wave shape) are programmed from within the FLFO Function  
(see page 69).  
Tip: Filter LFO is good for giving wah-wah effects at slower LFO  
speeds, and for adding “shimmering” with higher LFO speeds.  
Filter Envelope Depth (-99 to +99)  
The Filter Envelope is one of the most important settings in  
making a program. Many programs will use the Filter Envelope  
to determine the tonal character of the sound over time (attack,  
decay, sustain, and release). At +00, the filter envelope has no  
effect. Positive values raise the filter from the baseline cutoff  
frequency according to the envelope shape, and negative values  
similarly lower the cutoff frequency. The higher the number  
(negative or positive), the greater the effect. Filter Envelope  
parameters (such as attack and decay time) are programmed  
within the FENV Function (see page 74).  
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Amp  
Velocity Curve (13 choices)  
This selects how the sound will respond to the dynamics of your  
playing the keyboard. A LINEAR curve is the norm, whereby  
the increase in level is equal to the increase in velocity; the  
velocity values increase as you play harder. Many of the Velocity  
Curves make up sets to be used by 2, 3 or 4 sounds in order to  
facilitate velocity crossfading, whereby a different sound is  
played depending on how hard or soft the keyboard is played.  
As explained earlier, many of the samples to choose from when  
assigning voices are already velocity switching. These samples  
usually have the word “Velo” or the letter “V” in their names,  
indicating that there is actually more than one sample per note  
which can be selected by how hard or soft each note is played.  
However, the velocity point at which these sounds change is  
fixed and cannot be altered. If you want to create your own  
velocity crossfading Program, assign the single-sample versions  
of the same samples (“BrtRhdsVel” is made up of “BrtRhdsHrd”  
and “BrtRhdsSft”) to two or more sounds, then use the  
appropriate velocity curves for each sound (in a three-way  
velocity split, sound 1 would use curve “1 of 3,” sound 2 would  
use curve “2 of 3” while sound 3 would use “3 of 3”).  
Aftertouch Depth (-99 to +99)  
At +00, aftertouch has no effect on the amplitude. Applying  
aftertouch with this parameter set to a positive value raises the  
amplitude; conversely, applying aftertouch with a negative  
value will make the sound softer the harder you press. The  
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higher the number (either positive or negative), the greater the  
effect for a given amount of aftertouch.  
Tip: Use aftertouch to “swell” the amplitude of brass and horn  
parts.  
Amplitude LFO Depth (-99 to +99)  
At +00, the Amp LFO has no effect. Higher positive values  
increase the amount of LFO modulation. Negative values give  
the same apparent effect, but with reversed LFO phase (i.e., if the  
amplitude would normally be increasing with depth set to a  
positive number, the amplitude would instead be decreasing at  
that same moment had the depth been set to a negative number).  
Amplitude LFO parameters (such as speed and wave shape) are  
programmed within the ALFO Function (see page 70).  
Tip: Amplitude LFO set to a triangle wave gives tremolo effects.  
Range  
Each sound can be restricted to a specific range of the keyboard. This is  
ideal for creating splits (e.g., bass in the lower octave and a half, piano in  
the middle three octaves, and strings in the upper octave).  
Lower Limit (MIDI note 000 to 127/ C-2 to G8)  
Specifies the lowest note of the sound’s keyboard range. You can  
set the lower limit by holding Quad Switch [1] and tapping the  
key on the keyboard you want to set as the lowest note in the  
range.  
High Limit (MIDI note 000 to 127/ C-2 to G8)  
Specifies the highest note of the sound’s keyboard range. You  
can set the high limit by holding Quad Switch [2] and tapping  
the key on the keyboard you want to set as the highest note in  
the range.  
Tip: By setting the lower limit above the high limit, you can  
create a “hole in the middle” effect. This makes the sound  
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appear to have two zones. All notes from the bottom of the  
keyboard to the high limit note will play, and all notes from the  
lower limit to the top of the keyboard will play, but the notes  
between the high limit and the lower limit will not play. This can  
be further enhanced in Mix Mode by using the Range function in  
Mix Edit Mode to cap-off the lower and high limits.  
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Sound Overlap (00 to 99)  
This determines how many voices can overlap on the same pitch.  
Example: If you hold the sustain pedal down and play the same  
note over and over, Sound Overlap determines how many voices  
are available for that note, and thus how many voices will  
overlap (play simultaneously).  
In the old days, different brands of synthesizers offered different  
voice allocation schemes. One brand used a method called  
“rotate mode” in which each time a note was struck, a new voice  
was used. Another brand used a different method called  
“reassign mode” whereby if a note is played and then played  
again, the same voice is used both times. In other words, a new  
voice is used each time a new note of a different pitch is played.  
The Sound Overlap value lets you choose a comfortable setting  
between rotate mode and reassign mode. When the value equals  
99, you are always in rotate mode, using up polyphony; if the  
value is 00, you are always in reassign mode, conserving voices.  
Set the value anywhere between 00 and 99 and you will get a  
combination of both, with partiality toward whichever mode the  
value is closest to.  
A piano sound requires some Sound Overlap, but not a lot; it  
isn’t natural to hear too many voices on the same note. On the  
other hand, having only one voice per pitch isn’t natural either;  
let’s say you played a loud note with the sustain pedal held,  
followed by a soft note--the second note would abruptly cut-off  
the first. On a real piano, the string would still be resonating  
from the first (loud) note when the second (soft) note was  
played; thus the two notes would overlap.  
Sound Overlap is especially useful in Drum Mode. In Drum  
Mode, each drum sound is designated to one note (or sometimes  
a group of notes). When playing one note for a drum sound,  
such as a snare, and you attempt to play a roll, the Sound  
Overlap controls how much of an overlap will exist between  
each pair of notes. If the Sound Overlap value is set low, you are  
more likely to hear old notes getting cut-off.  
This function has added value when the Program’s Keyboard  
Mode parameter is set to Mono, instead of Poly. When playing  
monophonically, Sound Overlap controls the amount of overlap  
between notes. Normally, even if the sound has a long release  
time, playing a new note in Mono Mode will cut-off the previous  
note. By adjusting the Sound Overlap value, you can still hear  
the previous note fading away after the new note has been  
played.  
J
It is important to note that Sound Overlap can have a negative effect on  
polyphony.  
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If you have Sound Overlap set to 99, hold the sustain pedal and  
play a series of notes, you will run through all 64 voices in no  
time. By adjusting the Sound Overlap to a lower value, you  
decrease the number of voices used by each new note, and  
thereby ensure there are voices available to play other sounds, if  
necessary.  
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Mod  
About General Purpose Modulation  
Although there are several dedicated modulators in the  
QuadraSynth Plus (e.g., the pitch can always be modulated by  
the pitch LFO and pitch envelope), sophisticated synthesizer  
programming demands the ability to use as many modulation  
sources as possible to modulate as many modulation  
destinations as desired.  
The QuadraSynth Plus arranges its modulation source outputs  
and modulation destination inputs into a “matrix” so that any  
selected source can connect to any of several destinations.  
There are six general purpose matrix modulators, which allows  
you to control up to six parameters with any of several control  
sources.  
Use the MOD functions to setup your own customized control of  
a program, such as:  
Using one or both of the PEDAL inputs to control  
volume, brightness (filter cutoff), effect level, LFO speed, etc.  
Using velocity to increase or decrease the attack speed of  
an envelope, so playing softly makes the sound fade in, while  
playing hard causes an immediate attack.  
Using release velocity to increase/decrease the release  
time of an envelope, so quick releases of the keys cut off the end  
of the sound, while slow key releases allow the sound to fade  
away gradually.  
The MOD functions give you the freedom to go beyond the  
standard modulation sources built-in to other functions.  
Selecting the Modulator (1 to 6)  
Use the PAGE [¨ ] and PAGE [Æ] buttons to select one of the six  
modulators (modulator 1 is page 1, modulator 2 is page 2,  
modulator 3 is page 3, etc.). All modulators work in the same  
way, so only one will be described here.  
Modulation Source  
Quad Knob [1] selects one of several modulation sources:  
Note # provides a modulation signal that corresponds to  
the note played on the keyboard (higher keys give higher  
values). Example: Use this modulation source to obtain a  
different sound in the upper and lower keyboard ranges.  
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Velocity relates to how fast a key goes from the key up  
(note off) to the key down (note on) position, and therefore  
represents the dynamics of your playing.  
Release velocity relates to how fast a key goes from the  
key down (note on) to the key up (note off) position. Example:  
Use this to affect the level of a sound’s release based on how fast  
you remove your fingers from the keys.  
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Aftertouch Pressing on the keys after they’re down  
generates this control signal. Aftertouch is also called channel  
pressure, and represents an average of all keys being pressed.  
This affects any keys that are held down. The harder you press  
on the keys, the greater the degree of modulation.  
Polyphonic Pressure This is similar to aftertouch, but  
each key can respond to individual pressure messages. Although  
the QuadraSynth Plus keyboard does not generate poly  
pressure, the sound generators can respond to poly pressure  
signals entering via the MIDI In. Example: Assign poly pressure  
to the sound’s amplitude in a string ensemble patch. You can  
then increase the level of selected notes of a held chord to “pull”  
some notes out of the chord.  
Pitch Wheel The two wheels to the left of the keyboard  
are modulation sources (see below). The leftmost wheel, Pitch,  
always controls the oscillator pitch but can be tied to other  
parameters as well.  
Modulation Wheel The rightmost wheel, Modulation,  
is traditionally assigned to LFO amount (level) so that rotating  
the wheel away from you introduces vibrato. However it is also  
well-suited to controlling timbre, vibrato speed, and many other  
parameters.  
MIDI Volume MIDI can produce a variety of controller  
messages (see the MIDI supplement in the back of this manual).  
Of these, controller #7, which controls channel volume, is one of  
the most frequently used. Example: Assign the filter cutoff as the  
destination, and you can have the signal become less bright as it  
becomes lower in volume.  
Sustain Pedal The sustain switch plugged into the  
sustain pedal jack provides this modulation signal.  
Pedal 1 The pedal plugged into the Pedal 1 jack  
provides this modulation signal. Typically, this may be mapped  
to AENV Amp to act as a volume pedal.  
Pedal 2 The pedal plugged into the Pedal 2 jack  
provides this modulation signal.  
Pitch LFO This is the same modulation signal provided  
by the Pitch LFO. The Frequency LFO and Amplitude LFO can  
also be selected as modulation sources.  
Pitch Envelope This is the same modulation signal  
provided by the Pitch Envelope. The Frequency Envelope and  
Amplitude Envelope can also be selected as modulation sources.  
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Random This provides a different modulation value  
every time you hit a key. Example: With vintage analog synth  
patches, use pitch as the destination and apply a very slight  
amount of random modulation. Each note will have a slightly  
different pitch, which simulates the natural tuning instability of  
analog circuits.  
Trigrate This is a Trigger Rate Follower, which  
monitors how fast notes are being played on the keyboard. For  
example, if routed to the Effect send of a Program, you could  
automatically have more effect when playing slowly, and less  
effect when playing quickly.  
Controllers (A, B, C, D) Four incoming MIDI  
controllers can be recognized by the QuadraSynth Plus and used  
as modulation sources. These controllers are assigned as A–D in  
Global Mode (see Chapter 8). In Program Play Mode and Mix  
Play Mode, the four Quad Knobs can be used to control these  
directly.  
Tracking Generator This accepts the output of a signal  
processed by the Tracking Generator module (see page 81).  
Stepped Tracking Generator This accepts the output of  
a signal processed by the Tracking Generator module in stepped  
mode (see page 81).  
Modulation Destination  
Quad Knob [2] selects one of several modulation destinations.  
You can find out more about these parameters and how they  
affect the sound in their respective sections (for example, to learn  
how Pitch Envelope Attack affects the sound, see page 72 on  
Pitch Envelopes).  
Amp  
Attack  
Pitch  
Effect Send  
Filter Cutoff  
Amplitude  
PLFO Speed  
PLFO  
PLFO Delay  
PENV Delay  
PENV  
PENV Decay  
PENV Release  
PENV Amp  
PENV Sustain Decay  
Amp  
Attack  
FLFO Speed  
FENV Delay  
FLFO  
FENV  
FLFO Delay  
FENV Decay  
FENV Release  
FENV Amp  
FENV Sustain Decay  
ALFO Speed  
AEnvelope Delay •  
Amp  
ALFO  
ALFO Delay  
AEnvelope Attack  
AEnvelope Decay•  
AEnvelope Release  
AEnvelope Amp •  
AEnvelope Sustain Decay •  
Portamento Rate  
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Modulation Level (-99 to +99)  
At +00, the modulation source has no effect on the destination.  
Higher positive values increase the amount of modulation.  
Negative values also increase the amount of modulation, but  
with negative phase (i.e., if the modulation would normally be  
increasing with depth set to a positive number, the modulation  
would instead be decreasing at that same moment had the depth  
been set to a negative number).  
Gate Mode (Off or On)  
The Gate Mode function is available only on modulation  
routings 1 through 4. When Gate Mode is on, the Modulator will  
only be routed while notes are being played. In other words, you  
can gate the effect of the Modulator so that it stops when you are  
not playing any notes. This can be used on sounds with medium  
to long release times, where an interesting effect (like tremolo) is  
intended to be active while holding notes down, but deactivated  
as the sound is fading away after being released.  
Quantize Mode (Off or On)  
The Quantize Mode function is only available in modulation  
routings 5 and 6. When Quantize Mode is on, the modulation  
effect will be stepped. When off, the effect will be smooth, or  
linear. Example: If you were to route the Modulation Wheel to  
Pitch with an amplitude of +99, moving the Mod Wheel while  
the Quantize parameter was off would cause the pitch of a held  
note to slide up, much the same way it does when the Pitch Bend  
Wheel is used. However, moving the Mod Wheel while the  
Quantize parameter was on would cause the pitch of a held note  
to rise in half-step increments.  
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Pitch LFO  
Pitch LFO (Page 1)  
The Pitch LFO is most often used to apply vibrato to a sound.  
J
The following Pitch LFO variables will make a difference in the sound  
only if the PITCH LFO DEPTH (on Page 2 of the PITCH function) is  
set to a value other than 0, or, if the Pitch LFO is a source in the MOD  
function.  
Wave (8 choices)  
The waveform determines the shape of the LFO. Use Quad Knob  
[1] to select either Sine, Triangle, Square, Up Saw, Down Saw,  
Random+-, Noise or Random+.  
SINE  
TRI ANGLE  
SQUARE  
UP SA  
W
DOWN SA  
W
RANDOM+-  
NOI SE  
RANDOM  
+
Speed (00 to 99)  
Quad Knob [2] controls the speed or rate of the LFO. For fast  
modulation, increase this value. For slower modulation, decrease  
this value.  
Delay (00 to 99)  
This is the amount of time that is to occur before the LFO fades  
in. Sometimes, it is desirable to have modulation come in a  
moment or two after a note has been played, rather than starting  
instantly. The higher the value, the slower the LFO fades in.  
Trigger (Mono, Poly, Key Mono, or Key Poly)  
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The Trigger parameter determines how the LFO should be  
triggered, or started. There are four possible settings: Mono,  
Poly, Key Mono and Key Poly. When playing multiple voices in  
a single sound, each voice has its own LFO. However, the LFO  
Trigger parameter determines whether or not they should be in  
sync, and whether or not they can be retriggered independent  
from one another.  
Mono. All voices’ LFOs are in sync with each other. If you hold a  
chord and then play new notes on top of the chord, all voices’  
LFOs will be moving in the same direction and at the same  
speed. Because of this, modulating the LFO Speed using a voice-  
specific source (such as velocity or one of the envelopes, for  
example) will have no effect (you will be allowed to do this, but  
you won’t hear any difference). This is because these modulation  
sources are meant for polyphonic purposes. These include: Note  
Number, Velocity, Release Velocity, PLFO, FLFO, ALFO, PENV,  
FENV, AENV, Random, Trig Rate and Tracking Generator.  
However, modulation sources which are not voice-specific will  
still have an effect while the LFO Trigger is set to MONO. These  
include: Aftertouch, Mod Wheel, Pitch Wheel, MIDI Volume,  
Sustain Pedal, Pedal 1, Pedal 2, and Controllers A—D.  
Poly. Each voice’s LFO is independent. If you hold a chord,  
some voices’ LFOs will be moving in one direction while others  
move in the other direction. If the LFO Speed is being modulated  
(by one of the envelopes, for example), the LFO’s of each voice  
may be running at different speeds.  
Key Mono. This is identical to MONO, but whenever a new note  
is played, the LFO is retriggered, instead of continuing from  
wherever it may be in its cycle.  
Key Poly. This is almost identical to POLY, but whenever a new  
note is played, the LFO is retriggered, instead of continuing from  
wherever it may be in its cycle.  
Pitch LFO (Page 2)  
Level (00 to 99)  
This is the base output level of the Pitch LFO. If you want to  
have a constant value of vibrato, even without using the Mod  
Wheel or Aftertouch, set LEVEL above 00. The Mod Wheel and  
Aftertouch will add or subtract from this base level. Example: If  
Level is set to 10 and the Mod Wheel parameter is set to 10, there  
will always be some vibrato, and raising the Mod Wheel will  
add more vibrato. On the other hand, if the Mod Wheel  
parameter is set to -10, raising the Mod Wheel to the top will  
cancel out all vibrato.  
Mod Wheel (-99 to 99)  
This is the modulation amount of the Mod Wheel over the Pitch  
LFO’s Level. A positive value raises the level when the Mod  
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Wheel is moved up, and lowers the level when moved down.  
Negative settings of this parameter will decrease the output level  
of the PLFO as the Mod Wheel is raised. Since the output level of  
the PLFO cannot be less than zero, a negative setting of the Mod  
Wheel parameter will have no effect unless either the Aftertouch  
or the Level is set to raise the PLFO output. If both the Level and  
Aftertouch are set to 00, and the Mod Wheel parameter is set to -  
99, the Mod Wheel will have no effect on the vibrato from the  
PLFO.  
Aftertouch (-99 to 99)  
This is the modulation amount of Aftertouch over the Pitch  
LFO’s Level. A positive value raises the level as more Aftertouch  
is applied. A negative value will lower the amount of PLFO level  
as more Aftertouch is applied.  
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Filter LFO  
Filter LFO (Page 1)  
The Filter LFO is most often used to apply tremolo-like or "wah-  
wah" effects to a sound.  
J
The following Filter LFO variables will affect the sound only if the  
FILTER LFO DEPTH (on Page 2 of the FILTER function) is set to a  
value other than 0 , or, if Filter LFO is a source in the MOD function.  
Also note that the Filter LFO may have no effect if some other  
modulation source or setting has already pushed the filter cutoff  
frequency to its maximum.  
Wave (8 choices)  
The waveform determines the shape of the LFO. Use Quad Knob  
[1] to select either Sine, Triangle, Square, Up Sawtooth, Down  
Sawtooth, Random+-, Noise or Random+. For a graphic  
representation of these waveforms, see the diagram in the Wave  
section of the PLFO description on page 67.  
Speed (00 to 99)  
Quad Knob [2] controls the speed or rate of the LFO. For fast  
modulation, increase this value. For slower modulation, decrease  
this value.  
Delay (00 to 99)  
This is the amount of time that is to occur before the LFO fades  
in. Sometimes, it is desirable to have modulation come in a  
moment or two after a note has been played, rather than starting  
instantly. The higher the value, the slower the LFO fades in.  
Trigger (Mono, Poly, Key Mono, or Key Poly)  
The Trigger parameter determines how the LFO should be  
triggered, or started. There are four possible settings: Mono,  
Poly, Key Mono and Key Poly. A description of these settings is  
found in the Trigger section of the PLFO description on page 67.  
Filter LFO (Page 2)  
Level (00 to 99)  
This is the base output level of the Filter LFO. If you want to  
have a constant value of tremolo to the filter, even without using  
the Mod Wheel or Aftertouch, set LEVEL above 00. The Mod  
Wheel and Aftertouch will add or subtract from this base level.  
Example: If Level is set to 10 and the Mod Wheel parameter is set  
to 10, there will always be some filter tremolo, and raising the  
Mod Wheel will add more tremolo. On the other hand, if the  
Mod Wheel parameter is set to -10, raising the Mod Wheel to the  
top will cancel out all tremolo.  
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Mod Wheel (-99 to 99)  
This parameter sets how much the Mod Wheel will increase or  
decrease the Filter LFO’s Level. A positive value raises the level  
when the Mod Wheel is moved up, and lowers the level when  
moved down. Negative settings of this parameter will decrease  
the output level of the FLFO as the Mod Wheel is raised. Since  
the output level of the FLFO cannot be less than zero, a negative  
setting of the Mod Wheel parameter will have no effect unless  
either the Aftertouch or the Level is set to raise the FLFO output.  
If both the Level and Aftertouch are set to 00, and the Mod  
Wheel parameter is set to -99, the Mod Wheel will have no effect  
on the tremolo from the FLFO.  
Aftertouch (-99 to 99)  
This is the modulation amount of Aftertouch over the Filter  
LFO’s Level. A positive value raises the level as more Aftertouch  
is applied. A negative value will lower the amount of FLFO level  
as more Aftertouch is applied.  
Amp LFO  
Amp LFO (Page 1)  
The Amp LFO is usually used to add tremolo to a sound.  
J
The Amp LFO variables will have an effect only if the AMP LFO  
DEPTH (in the AMP function) is set to a value other than 0 , or, if  
Amp LFO is a source in the MOD function.  
Wave (8 choices)  
The waveform determines the shape of the LFO. Use Quad Knob  
[1] to select either Sine, Triangle, Square, Up Sawtooth, Down  
Sawtooth, Random+-, Noise or Random+. See the diagram in the  
Wave section of the PLFO description on page 67.  
Speed (00 to 99)  
Quad Knob [2] controls the speed or rate of the LFO. For fast  
modulation, increase this value. For slower modulation, decrease  
this value.  
Delay (00 to 99)  
This is the amount of time that is to occur before the LFO fades  
in. Sometimes, it is desirable to have modulation come in a  
moment or two after a note has been played, rather than starting  
instantly. The higher the value, the slower the LFO fades in.  
Trigger (Mono, Poly, Key Mono, Key Poly)  
The Trigger parameter determines how the LFO should be  
triggered, or started. There are four possible settings: Mono,  
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Poly, Key Mono and Key Poly. A description of these settings is  
found in the Trigger section of the PLFO description on page 67.  
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Amp LFO (Page 2)  
Level (00 to 99)  
This is the base output level of the Amp LFO. If you want to  
have a constant value of tremolo, even without using the Mod  
Wheel or Aftertouch, set LEVEL above 00. The Mod Wheel and  
Aftertouch will add or subtract from this base level. Example: If  
Level is set to 10 and the Mod Wheel parameter is set to 10, there  
will always be some tremolo, and raising the Mod Wheel will  
add more tremolo. On the other hand, if the Mod Wheel  
parameter is set to -10, raising the Mod Wheel to the top will  
cancel out all tremolo.  
Mod Wheel (-99 to 99)  
This is the modulation amount of the Mod Wheel over the Amp  
LFO’s Level. A positive value raises the level when the Mod  
Wheel is moved up, and lowers the level when moved down.  
Negative settings of this parameter will decrease the output level  
of the ALFO as the Mod Wheel is raised. Since the output level  
of the ALFO cannot be less than zero. A negative setting of the  
Mod Wheel parameter will have no effect unless either the  
Aftertouch or the Level is set to raise the ALFO output. If both  
the Level and Aftertouch are set to 00, and the Mod Wheel  
parameter is set to -99, the Mod Wheel will have no effect on the  
tremolo from the ALFO.  
Aftertouch (-99 to 99)  
This is the modulation amount of Aftertouch over the Amp  
LFO’s Level. A positive value raises the level as more Aftertouch  
is applied. A negative value will lower the amount of ALFO  
level as more Aftertouch is applied.  
Pitch Envelope  
Pitch Envelope (Page 1)  
Pitch Envelope can lead to dramatic effects, since it can cause the  
pitch of a single key to change drastically over time. It’s  
typically used in special-effect synthesizer programs, but it may  
also be used more subtly in an acoustic program to simulate the  
characteristic of some instruments to go sharp on the initial  
attack, especially when played hard.  
J
The following Pitch Envelope variables will have an effect only if the  
PITCH ENVELOPE DEPTH (on Page 2 of the PITCH function) is set  
to a value other than 0, or, if Pitch Envelope is a source in the MOD  
function.  
Attack (00 to 99)  
This is the amount of time the envelope will take until it reaches  
its maximum output level. Setting the Attack to 0 will make the  
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pitch go to maximum immediately on hitting the key (if the  
Delay is also set to 0 in PENV Page 2--see below); a setting of 99  
will result in a much slower attack, taking many seconds before  
the envelope gets to maximum.  
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Decay & Sustain (00 to 99)  
As soon as the attack portion of the envelope finishes (when the  
level reaches maximum), the envelope will decay (decrease in  
level). The level it reaches is set by the Sustain control; how long  
it takes to get there is set by the Decay control. In the special case  
where the Sustain level is all the way up (99), then there is no  
decrease and the Decay time segment is bypassed. Whatever  
level the sustain is set to is the level that the decay section of the  
envelope will head for. Depending on the setting of the Sustain  
Decay control (see below), the envelope will either hold at the  
sustain level until you release the note on the keyboard, or decay  
to 0 at the Sustain Decay rate (which is on page 2 of the  
envelope). You can create a long "plateau" at the start of a note  
by setting the Sustain to 98 and the Decay to 99. This will cause  
the envelope to take the maximum amount of time to get from  
peak level to a level of 98, before the Sustain Release portion of  
the envelope begins.  
Release (00 to 99, Hold)  
Eventually, you will let go of the note that you’ve been holding  
(either by releasing the note on the keyboard, or releasing the  
sustain pedal if it was pressed). It is at this point that the Release  
portion of the envelope takes effect. The Release is the time that  
the envelope takes to get from its current level back down to  
nothing. Setting the Release time to 99 will take the envelope a  
very long time to reach zero level.  
The Pitch Envelope is unique from the other two envelopes in  
that its Release time can be set above 99. When this is done, the  
value in the display will read “Hold”. This indicates that the  
pitch envelope will remain where it is even after the note is  
released. This is important when you want the pitch effect to  
continue even after releasing the key. Example: If the PENV is  
bending a note up, and you don’t want the pitch to fall when  
you release the key, set the Release parameter to “Hold”.  
Pitch Envelope (Page 2)  
Delay (00 to 99, Hold)  
This is the amount of time that the envelope will wait before  
doing anything; very useful if you want to affect one element of  
a sound sometime after the sound starts. When the Delay is set  
to 0, the envelope attacks right away, without any delay. Play  
some notes while turning up the delay and see that the time  
between playing the note and hearing the effect of the Pitch  
Envelope gets progressively longer as the Delay control is turned  
up.  
If the Delay is set above 99, the display will read “Hold”. This  
indicates that the Delay stage of the envelope will wait  
indefinitely until the key is released before continuing on to the  
remaining envelope stages (Attack, Decay, etc.). This requires  
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that the Pitch Envelope’s Trigger parameter (see next page) is set  
to “Freerun”. However, when the Delay is set to “Hold”,  
“Freerun” mode is forced on regardless of the Trigger  
parameter’s setting.  
Sustain Decay (00 to 99)  
This is the amount of time that the envelope will take during the  
sustain stage to bring the level down to 0. If this is set to 99, the  
envelope will remain at the Sustain level until the note is  
released. When set to 0, the envelope’s level will immediately  
jump down to 0 upon reaching the sustain stage.  
Trigger (Normal, Freerun, Reset, Reset-Freerun)  
The Trigger mode determines how the envelope will function.  
You may select either Freerun or Reset, or both (Reset-Freerun)  
or neither (Normal). When set to Normal, the envelope will  
always start at its current level (i.e., if another note had been  
played which triggered the envelope’s cycle, playing another  
note in the middle would not interrupt the cycle). Also in  
Normal mode, the envelope will immediately advance to its  
release stage upon releasing the note. When set to Freerun, the  
envelope will complete its entire cycle, even if the note is  
released in the middle. When set to Reset, the envelope starts at  
the beginning whenever a new note is played. When set to Reset-  
Freerun, the envelope will start at the beginning whenever a  
new note is played and will complete its entire cycle, even if the  
note is released in the middle.  
If a sound layer’s Keyboard Mode parameter (found in the Pitch  
Function, Page 3, Quad Knob [4]) is set to “Mono”, the Pitch  
Envelope will only retrigger when playing legato if the Trigger  
Mode is set to either “Reset” or “Reset-Freerun”.  
Pitch Envelope (Page 3)  
Time Tracking (On or Off)  
This determines whether or not keyboard position will affect the  
cycle speed of the envelope. When turned on, playing toward  
the higher end of the keyboard will result in a faster envelope  
cycle; playing toward the lower end of the keyboard will result  
in a slower envelope cycle. However, this does not effect the  
attack time, but only the decay, sustain decay and release  
segments. This feature will result in only a subtle change. The  
envelope’s timing doubles or halves over a range of two octaves.  
Sustain Pedal (On or Off)  
This determines whether or not the Sustain Pedal will have an  
effect on the envelope. When turned on, holding down the  
Sustain Pedal while playing short notes is virtually the  
equivalent to holding down those notes on the keyboard with  
some subtle but important differences. If the Delay and Attack  
are set to 0 and either the Decay is 0 or the Sustain is 99, the  
envelope will immediately jump to the sustain decay stage (if  
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not already there) when the note is released and the sustain  
pedal is held down. If a long attack is set, and the envelope does  
not reach the end of the attack segment when the note is  
released, it will be skipped and the envelope will jump  
immediately to the release segment. If a long delay is set, and the  
envelope has not reached the attack segment before the note is  
released, the envelope will remain at 0. However, if Freerun is  
turned on, the envelope will continue through the delay, attack,  
decay and sustain segments and remain at the sustain decay  
segment. This is exactly the same as holding down the note on  
the keyboard. When the Sustain Pedal parameter is turned off,  
the Sustain Pedal will have no effect on the envelope.  
Level (00 to 99)  
This is the overall output level of the envelope. If this is set to 00,  
the PENV will have no output and will have no effect, while at  
99 it will have a maximum effect on whatever it is being routed  
to. Tip: When selecting PENV Level as a modulation destination,  
set the PENV level to 00 if the Modulation Level is above 0 (or,  
set the PENV level to 99 if the Modulation Amount is below 0).  
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Velocity Modulation (00 to 99)  
This determines how keyboard dynamics will affect the  
envelope level. When set to 99, note velocity controls the  
envelope’s output; notes played hard will deliver a higher  
envelope output than notes played soft. When set to 0, note  
velocity will have no effect on the envelope’s output level.  
Filter Envelope  
Filter Envelope (Page 1)  
Filter Envelope is crucial whenever you want the tonal quality of  
a note to change over time, differently from its overall level.  
Example: When you want the initial attack of a note to be bright,  
but want the sustaining part to be filtered.  
J
The following Filter Envelope variables will only have any effect if the  
FILTER ENVELOPE DEPTH (on Page 2 of the FILTER function) is  
set to a value other than 0, or, Filter Envelope is a source in the MOD  
function.  
Also note that the Filter Envelope may have no effect if some other  
modulation source, or the basic setting of the filter, has already pushed  
the filter cutoff frequency to its maximum.  
Attack (00 to 99)  
This is the amount of time the envelope will take until it reaches  
its maximum output level. Setting the Attack to 0 will give a  
sharp edge to the sound (if the Delay is also set to 0 in FENV  
Page 2--see below); a setting of 99 will result in a much slower  
attack, taking many seconds before the envelope gets to  
maximum.  
Decay & Sustain (00 to 99)  
As soon as the attack portion of the envelope finishes (when the  
level reaches maximum), the envelope will decay (decrease in  
level). The level it reaches is set by the Sustain control; how long  
it takes to get there is set by the Decay control. In the special case  
where the Sustain level is all the way up (99), then there is no  
decrease and the Decay time segment is bypassed. Whatever  
level the sustain is set to is the level that the decay section of the  
envelope will head for. Depending on the setting of the Sustain  
Decay control (see below), the envelope will either hold at the  
sustain level until you release the note on the keyboard, or decay  
to 0 at the Sustain Decay rate (which is on page 2 of the  
envelope). You can create a long "plateau" at the start of a note  
by setting the Sustain to 98 and the Decay to 99. This will cause  
the envelope to take the maximum amount of time to get from  
peak level to a level of 98, before the Sustain Release portion of  
the envelope begins.  
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Release (00 to 99)  
Eventually, you will let go of the note that you’ve been holding  
(either by releasing the note on the keyboard, or releasing the  
sustain pedal if it was pressed). It is at this point that the Release  
portion of the envelope takes effect. The Release is the time that  
the envelope takes to get from the sustain level back down to  
nothing. Setting the Release time to 0 is good for playing those  
short funky riffs that you hear on a clavinet. Setting the Release  
time to 99 will take the envelope a very long time to reach zero  
level.  
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Filter Envelope (Page 2)  
Delay (00 to 99)  
This is the amount of time that the envelope will wait before  
doing anything; very useful if you want to affect one element of  
a sound sometime after the sound starts. When the Delay is set  
to 0, the envelope attacks right away, without any delay. Play  
some notes while turning up the delay and see that the time  
between playing the note and hearing the effect of the Filter  
Envelope gets progressively longer as the Delay control is turned  
up.  
If the Delay is set above 99, the display will read “Hold”. This  
indicates that the Delay stage of the envelope will wait  
indefinitely until the key is released before continuing on to the  
remaining envelope stages (Attack, Decay, etc.). This requires  
that the Filter Envelope’s Trigger parameter (see next page) is set  
to “Freerun”. However, when the Delay is set to “Hold”,  
“Freerun” mode is forced on regardless of the Trigger  
parameter’s setting.  
Sustain Decay (00 to 99)  
This is the amount of time that the envelope will take during the  
sustain stage to bring the level down to 0. If this is set to 99, the  
envelope will remain at the Sustain level until the note is  
released. This is the normal setting for organ-type sounds. When  
set to 0, the envelope’s level will immediately jump down to 0  
upon reaching the sustain stage.  
Trigger (Normal, Freerun, Reset, Reset-Freerun)  
The Trigger mode determines how the envelope will function.  
You may select either Freerun or Reset, or both (Reset-Freerun)  
or neither (Normal). When set to Normal, the envelope will  
always start at its current level (i.e., if another note had been  
played which triggered the envelope’s cycle, playing another  
note in the middle would not interrupt the cycle). Also in  
Normal mode, the envelope will immediately advance to its  
release stage upon releasing the note. When set to Freerun, the  
envelope will complete its entire cycle, even if the note is  
released in the middle. When set to Reset, the envelope starts at  
the beginning whenever a new note is played. When set to Reset-  
Freerun, the envelope will start at the beginning whenever a  
new note is played and will complete its entire cycle, even if the  
note is released in the middle.  
If a sound layer’s Keyboard Mode parameter (found in the Pitch  
Function, Page 3, Quad Knob [4]) is set to “Mono”, the Filter  
Envelope will only retrigger when playing legato if the Trigger  
Mode is set to either “Reset” or “Reset-Freerun”.  
Filter Envelope (Page 3)  
Time Tracking (On or Off)  
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This determines whether or not keyboard position will affect the  
cycle speed of the envelope. When turned on, playing toward  
the higher end of the keyboard will result in a faster envelope  
cycle; playing toward the lower end of the keyboard will result  
in a slower envelope cycle. However, this does not effect the  
attack time, but only the decay, sustain, sustain decay and  
release segments. This feature will result in only a subtle  
change. The envelope’s timing doubles or halves over a range of  
two octaves.  
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Sustain Pedal (On or Off)  
This determines whether or not the Sustain Pedal will have an  
effect on the envelope. When turned on, holding down the  
Sustain Pedal while playing short notes is virtually the  
equivalent to holding down those notes on the keyboard with  
some subtle but important differences. If the Delay and Attack  
are set to 0 and either the Decay is 0 or the Sustain is 99, the  
envelope will immediately jump to the release stage (if not  
already there) when the note is released and the sustain pedal is  
held down. If a long attack is set, and the envelope does not  
reach the end of the attack segment when the note is released, it  
will be skipped and the envelope will jump immediately to the  
sustain decay segment. If a long delay is set, and the envelope  
has not reached the attack segment before the note is released,  
the envelope will remain at 0. However, if Freerun is turned on,  
the envelope will continue through the delay, attack, decay and  
sustain segments and remain at the sustain decay segment. This  
is exactly the same as holding down the note on the keyboard.  
When the Sustain Pedal parameter is turned off, the Sustain  
Pedal will have no effect on the envelope.  
Level (00 to 99)  
This is the overall output level of the envelope. If this is set to 00,  
the FENV will have no output and will have no effect, while at  
99 it will have a maximum effect on whatever it is being routed  
to. Tip: When selecting FENV Level as a modulation destination,  
set the FENV level to 00 if the Modulation Level is above 0 (or,  
set the FENV level to 99 if the Modulation Amount is below 0).  
Velocity Modulation (00 to 99)  
This determines how keyboard dynamics will affect the  
envelope level. When set to 99, note velocity controls the  
envelope’s output; notes played hard will deliver a higher  
envelope output than notes played soft. When set to 0, note  
velocity will have no effect on the envelope’s output level.  
Amp Envelope  
Amp Envelope (Page 1)  
The Amp Envelope is crucial for all sounds because it sets the  
basic characteristics of the note--whether it attacks quickly or  
slowly, sustains or decays. Some Programs may leave the Amp  
Envelope in a sustaining mode, and provide attack and decay  
using the Filter Envelope; the effect is slightly different. Unlike  
Pitch and Filter Envelope, the Amp Envelope is always fully  
active (there is no second-page to the AMP function adjusting  
how much envelope is applied to the amp).  
Attack (00 to 99)  
This is the amount of time the envelope will take until it reaches  
its maximum output level. Setting the Attack to 0 will give a  
sharp edge to the sound (if the Delay is also set to 0 in AENV  
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Page 2--see below); a setting of 99 will result in a much slower  
attack, taking many seconds before the envelope gets to  
maximum.  
Decay & Sustain (00 to 99)  
As soon as the attack portion of the envelope finishes (when the  
level reaches maximum), the envelope will decay (decrease in  
level). The level it reaches is set by the Sustain control; how long  
it takes to get there is set by the Decay control. In the special case  
where the Sustain level is all the way up (99), then there is no  
decrease and the Decay time segment is bypassed. Whatever  
level the sustain is set to is the level that the decay section of the  
envelope will head for. Depending on the setting of the Sustain  
Decay control (see below), the envelope will either hold at the  
sustain level until you release the note on the keyboard, or decay  
to 0 at the Sustain Decay rate (which is on page 2 of the  
envelope). You can create a long "plateau" at the start of a note  
by setting the Sustain to 98 and the Decay to 99. This will cause  
the envelope to take the maximum amount of time to get from  
peak level to a level of 98, before the Sustain Release portion of  
the envelope begins.  
Release (00 to 99)  
Eventually, you will let go of the note that you’ve been holding  
(either by releasing the note on the keyboard, or releasing the  
sustain pedal if it was pressed). It is at this point that the Release  
portion of the envelope takes effect. The Release is the time that  
the envelope takes to get from the sustain level back down to  
nothing. Setting the Release time to 0 is good for playing those  
short funky riffs that you hear on a clavinet. Setting the Release  
time to 99 will take the envelope a very long time to reach zero  
level.  
Amp Envelope (Page 2)  
Delay (00 to 99)  
This is the amount of time that the envelope will wait before  
doing anything; very useful if you want to affect one element of  
a sound sometime after the sound starts. When the Delay is set  
to 0, the envelope attacks right away, without any delay. Play  
some notes while turning up the delay and see that the time  
between playing the note and hearing the effect of the Amp  
Envelope gets progressively longer as the Delay control is turned  
up.  
If the Delay is set above 99, the display will read “Hold”. This  
indicates that the Delay stage of the envelope will wait  
indefinitely until the key is released before continuing on to the  
remaining envelope stages (Attack, Decay, etc.). This requires  
that the Amp Envelope’s Trigger parameter (see next page) is set  
to “Freerun”. However, when the Delay is set to “Hold”,  
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“Freerun” mode is forced on regardless of the Trigger  
parameter’s setting.  
Sustain Decay (00 to 99)  
This is the amount of time that the envelope will take during the  
sustain stage to bring the level down to 0. If this is set to 99, the  
envelope will remain at the Sustain level until the note is  
released. When set to 0, the envelope’s level will immediately  
jump down to 0 upon reaching the sustain stage.  
Trigger (Normal, Freerun, Reset, Reset-Freerun)  
The Trigger mode determines how the envelope will function.  
You may select either Freerun or Reset, or both (Reset-Freerun)  
or neither (Normal). When set to Normal, the envelope will  
always start at its current level (i.e., if another note had been  
played which triggered the envelope’s cycle, playing another  
note in the middle would not interrupt the cycle). Also in  
Normal mode, the envelope will immediately advance to its  
release stage upon releasing the note. When set to Freerun, the  
envelope will complete its entire cycle, even if the note is  
released in the middle. When set to Reset, the envelope starts at  
the beginning whenever a new note is played. When set to Reset-  
Freerun, the envelope will start at the beginning whenever a  
new note is played and will complete its entire cycle, even if the  
note is released in the middle.  
If a sound layer’s Keyboard Mode parameter (found in the Pitch  
Function, Page 3, Quad Knob [4]) is set to “Mono”, the Amp  
Envelope will only retrigger when playing legato if the Trigger  
Mode is set to either “Reset” or “Reset-Freerun”.  
Amp Envelope (Page 3)  
Time Tracking (On or Off)  
This determines whether or not keyboard position will affect the  
cycle speed of the envelope. When turned on, playing toward  
the higher end of the keyboard will result in a faster envelope  
cycle; playing toward the lower end of the keyboard will result  
in a slower envelope cycle. However, this does not effect the  
attack time, but only the decay, sustain, sustain decay and  
release segments. This feature will result in only a subtle change.  
The envelope’s timing doubles or halves over a range of two  
octaves.  
Sustain Pedal (On or Off)  
This determines whether or not the Sustain Pedal will have an  
effect on the envelope. When turned on, holding down the  
Sustain Pedal while playing short notes is virtually the  
equivalent to holding down those notes on the keyboard with  
some subtle but important differences. If the Delay and Attack  
are set to 0 and either the Decay is 0 or the Sustain is 99, the  
envelope will immediately jump to the release stage (if not  
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Editing Programs: Chapter 6  
already there) when the note is released and the sustain pedal is  
held down. If a long attack is set, and the envelope does not  
reach the end of the attack segment when the note is released, it  
will be skipped and the envelope will jump immediately to the  
sustain decay segment. If a long delay is set, and the envelope  
has not reached the attack segment before the note is released,  
the envelope will remain at 0. However, if Freerun is turned on,  
the envelope will continue through the delay, attack, decay and  
sustain segments and remain at the sustain decay segment. This  
is exactly the same as holding down the note on the keyboard.  
When the Sustain Pedal parameter is turned off, the Sustain  
Pedal will have no effect on the envelope.  
Level (00 to 99)  
This is the overall output level of the envelope. If this is set to 00,  
the AENV will have no output and will have no effect, while at  
99 it will have a maximum effect on whatever it is being routed  
to. Tip: When selecting AENV Level as a modulation destination,  
set the AENV level to 00 if the Modulation Level is above 0 (or,  
set the AENV level to 99 if the Modulation Amount is below 0).  
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Tracking Generator  
The Tracking Generator is used to scale a modulation source. For  
example, normally you could modulate the Amp (volume) of a sound  
using velocity; the harder you play, the louder the sound gets. The  
amount of change in volume is equal to the change in velocity; this is  
called linear control. If instead, however, you set the Tracking  
Generator’s input to “velocity”, and then routed the Tracking Generator  
to the Amp (using the Mod function), you can make your own  
customized "map" of the control velocity has over the sound’s level.  
The Tracking Generator divides the range of the input into 11 points (0—  
10), each of which can be set between 0 and 100. If you boost the value of  
one of the lower points, you make the input more sensitive in its lower  
register. By creating a non-linear curve using the velocity example above,  
you can scale the velocity’s control over the sound’s volume just the way  
you want.  
When selecting the Tracking Generator as a modulation source in the  
Mod Function, these two choices will be available. When “TRACKGEN”  
is selected as the modulation source, the Tracking Generator functions  
normally, scaling its input as determined by its parameter settings.  
When “STEPTRACK” is selected as a modulation source, the Tracking  
Generator’s output will be stepped, or interpolated. This means that  
instead of scaling the input linearly from point to point, the input is kept  
at each point’s value setting until it goes beyond the following point’s  
value setting, at which point it jumps to that setting. This feature is very  
useful in creating “mini-sequences” if the modulation destination is set  
to “Pitch” and the Tracking Generator’s input is an LFO using an “Up  
Sawtooth” as its waveform.  
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L
I
NE  
A
R
100  
0
P
OI  
NTS:  
0
1
2
3
4
5
6
7
8
9
10  
NON- LI NEAR  
100  
0
P
OI  
NTS:  
0
1
2
3
4
5
6
7
8
9
10  
NON-  
L
I
NE  
A
R
STEPPED  
100  
0
P
OI  
NTS:  
0
1
2
3
4
5
6
7
8
9
10  
Tip: The Tracking Generator can be used to turn a variable control, such  
as the Mod Wheel or velocity, into a switch by setting all of the points to  
0 except for point 10. Only near the maximum input will anything other  
than 0 come out of the Tracking generator. You can patch the Mod Wheel  
somewhere else in addition to the Tracking Generator, giving you  
gradual control of one function with the full range of the Mod Wheel,  
while switching on a second function only at the top of the wheel.  
However, the Tracking Generator interpolates between steps; this is sort  
of like playing “connect the dots.” In other words, the Tracking  
Generator does not step directly from one point to the next, but ramps  
from point to point.  
Input  
In Page 1 of the TRACK function, Quad Knob [1] selects the  
input of the Tracking Generator:  
Note Number  
Aftertouch  
Pitch Wheel  
Pedal 1 •  
Velocity  
Release  
Mod  
Velocity  
Wheel  
Poly Pressure  
MIDI Volume  
Sustain  
Pedal  
Pedal 2 •  
ALFO •  
AENV •  
PLFO  
PENV  
Random  
FLFO  
FENV •  
Trig Rate  
Cont. A—D  
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For detailed descriptions of each of these sources, see the section  
“Modulation Source” in the Mod section on pages 67—69.  
Points 0 — 10 (00—100)  
Quad Knobs [2], [3] and [4] in page 1 of the TRACK function  
control the levels of points 0 —2. Points 3—6 are found on page  
2, while points 7—10 are on page 3.  
Name  
The Name Function allows you to change the Program’s name. The  
Program name can be up to 10 characters long. Use the PAGE [¨ ] and  
[Æ] buttons to position the cursor. Quad Knob [1] selects the character.  
Here is a chart of available characters:  
!
5
I
]
q
"
#
7
K
_
s
$
8
L
`
%
9
M
a
&
:
N
b
v
;
O
c
w
(
)
*
+
?
S
g
{
,
-
.
/
C
W X  
k
0
D
1
2
F
Z
n
3
G
[
4
H
¥
p
6
J
^
r
<
P
d
x
=
Q
e
y
>
R
f
@ A  
B
V
j
E
Y
m
T
h
|
U
i
}
l
o
t
u
z
Æ
¨
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Editing Programs: Chapter 6  
Misc.  
Drum Mode  
This enables and disables Drum Mode which allows you to  
assign individual drum sounds to individual keys. To Program a  
sound in Drum Mode, refer to the next section “Programming  
Drum Sounds.”  
Sound Enable  
This is the master on/off switch for the selected sound (1—4) of  
the current Program.  
To avoid using up polyphony unnecessarily, set Sound Enable  
to OFF for any sounds that will not be used in a Program. When  
using Edit 4 mode, disabled sounds will have the word “sndx”  
(where x is a sound from 1 to 4) appear in lowercase letters  
above each bar graph meter in the display. Active sounds will  
have the word “SNDX” appear in uppercase letters. Turning  
sounds off is a convenient way to isolate a particular sound you  
are editing. A quick way to turn a sound on and off from  
anywhere within Program Edit mode is to hold the  
corresponding Quad Button [1]—[4] and press VALUE [Ø] to  
disable or VALUE [` ] to enable. Example: Holding Quad Button  
[1] and pressing VALUE [Ø] will disable sound 1.  
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Programming Drum Sounds  
To program a sound in Drum Mode, you must first enable Drum Mode for that  
particular sound in the Misc. Function (see previous section). Quad Knob [4] is  
always used to select a Drum (1—10), regardless of which Function or Page is  
selected (except Effect, Name and Misc.). For an explanation of the basics of  
Drum Mode, see page 56.  
J
When using Edit 4 mode, sounds using Drum Mode will be unavailable for editing; only  
sounds not in Drum Mode will be editable in the bargraph display. If a sound is in Drum  
mode, the display will show “drmX,” whereby X is the sound number (1—4).  
If you enable Drum Mode for a sound while in Edit 4 mode, the QuadraSynth  
Plus will automatically switch to Edit 1 mode for that layer.  
Assign Voice  
The Assign Voice function is where you choose the particular sample for  
the selected drum (1—10). Similar to the normal Assign Voice function,  
sounds are divided into groups. After selecting the group (using Quad  
Knob [1]), you then select the sample within the group (using Quad  
Knob [2]). Here is a chart listing the various drum samples in their  
respective groups.  
Group  
Kick  
Snare  
Voice  
Stab Kick, Deep Kick, Spike Kick, Flap Kick, GarageKick, PillowKic, Elect Kick  
Studio Snr, TurboSnare, PiccoloSnr, Crisp Snr, Power Snr, Dance Snr, Rimshot,  
Side Stick  
Hi Hat  
Toms  
Closed Hat, Edge Hat, Open Hat, FootClosed  
Hi Pwr Tom, Lo Pwr Tom, Hi Mid Tom, Mid Tom, Lo Mid Tom, Hi Flr Tom,  
Floor Tom, Lo Flr Tom, Hi Slam Tom, Md Slam Tom, Lo Slam Tom, Hi Cannon,  
Mid Cannon, Lo Cannon  
Cymbal  
Percus  
Cym Ride, Cym Bell, Cym Crash, Cym China, Cym Splash  
Tympani, TbularBell, Asian Drum, Cabasa, Castanet, Clave, High Agogo, Low  
Agogo, High Bongo, Lo Bong, Conga High, Conga Lo, Conga Slap, Cowbell,  
Triangle, TriangleMt, Guiro Long, GuiroShort, Hand Clap, Shaker, Maracas,  
Tambourine, Timbale Hi, Timbale Lo, Log Drum, Vibrasmack, WoodBlk Hi,  
WoodBlk Lo, Waterphone, SambaWhstl, ShortWhstl, Alert, Android, Cyborg,  
Meteor, Supernova  
Percus  
FX  
Wave  
Rhythm  
Zap Attk 1, Zap Attk 2, Zap Attk 3, Mini Attk, Pop, Pop Attk, Bottle Hit, Metal  
Attk1, Metal Attk2, Fingersnap,Voice EFX1, Voice EFX2, Voice EFX3  
High Sine, Low Sine, Noise  
PsiBeat 1, PsiBeat 2, PsiBeat 3, PsiBeat 4, PsiBeat 5, Kick Loop1, Kick Loop2,  
Kick Loop3, Kick Loop4, Kick Loop5, SnareLoop1, SnareLoop2, SnareLoop3,  
Backbeat, ClsdHHLoop, OpenHHLoop1, OpenHHLoop2, FootHHLoop, Ride  
Loop1, Ride Loop2, Ride Loop3, Tick Talk, Swingset, Bongo Loop, BlockLoop1,  
BlockLoop2, BlockLoop3, HiTriLpHd, HiTriLpSf, LoTriLpHd, LoTriLpSf, Tamb  
Loop1, Tamb Loop2, ShakerLoop, ShuflShakr, PopperLoop, BottleLoop, Motor,  
MiniNoizLp, HvyMetalLp, Machine Lp, Kah Loop, Bass Loop, SynBass Lp,  
Level  
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Editing Programs: Chapter 6  
Each of the 10 drums in a sound can have its own level, pan position,  
and output assignment. The Level function provides these controls. Use  
Quad Knob [1] to adjust the selected drum’s level (00 to 99), Quad Knob  
[2] to adjust pan position (<3 to >3), and Quad Knob [3] to select the  
Output assignment (Main, Aux or Off). Use Quad Knob [4] to select the  
drum (1—10) you wish to edit.  
To send a drum to an individual output, use Output in conjunction with  
Pan. Example: Panning a drum full left and selecting the Aux outputs  
means that the drum will appear at only the left Aux output.  
Effects Level  
The Effects Level function determines how much of the selected drum is  
being routed to the effects processor, and on which bus. Quad Knob [1]  
adjusts the Effect Send level (00 to 99), and Quad Knob [2] selects the  
Effects Bus (1, 2, 3 or 4). Use Quad Knob [4] to select the drum (1—10)  
you wish to edit.  
Pitch  
Pitch (-12.00 to +12.00)  
The Pitch function lets you transpose the selected drum up or  
down one octave in micro-step (1/4th of a half step) increments,  
and lets you modulate the drum’s pitch with velocity. Quad  
Knob [1] determines the tuning of the selected drum (±12.00).  
Use Quad Knob [2] to select how much you wish velocity to  
affect the selected drum’s tuning (0—7). When this value is set to  
7, the drum will be played sharp when the associated note is  
played hard; when played soft, the drum’s tuning will be  
unaltered. Use Quad Knob [4] to select the drum (1—10) you  
wish to edit.  
Filter  
Velocity>Filter (0 to 3)  
The Filter function lets you control the “brightness” of the  
selected drum by modulating the filter frequency with velocity.  
Use Quad Knob [1] to set the Velocity>Filter parameter (0—3).  
When set to 3, playing the associated note will result in a  
brighter sound (more high frequencies), while playing softer will  
result in a duller sound (less high frequencies). When this  
parameter is set to 0, velocity will have no affect on the filter.  
Use Quad Knob [4] to select a drum (1—10) to edit.  
Amp  
Velocity Curve (13 choices)  
Quad Knob [1] in the Amp function lets you select one of 13  
velocity curves. This determines how the drum will respond to  
the dynamics of your playing the keyboard. Use Quad Knob [4]  
to select the drum (1—10) you wish to edit.  
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Editing Programs: Chapter 6  
A LINEAR curve is the norm, whereby the increase in level is  
equal to the increase in velocity; the velocity values increase as  
you play harder. Many of the Velocity Curves make up sets to be  
used by 2, 3 or 4 drums in order to facilitate velocity crossfading,  
whereby a different drum is played depending on how hard or  
soft the keyboard is played. However, each drum must be in a  
different sound layer of the Program in order to be stacked on  
the same note.  
If you want to create your own velocity crossfading Program,  
assign the related versions of the same drum samples (“Conga  
High” and “Conga Lo”) the same key in different Program  
Sound layers, then use the appropriate velocity curves for each  
drum (in a three-way velocity split, drum 1 would use curve “1  
of 3,” drum 2 would use curve “2 of 3” while drum 3 would use  
“3 of 3”).  
For more details about the 13 velocity curves, see the illustration  
on page 64.  
Range  
Note (000 to 127/C-2 to G8)  
Each drum can be assigned to a single note which will trigger  
the drum sound when played. Quad Knob [1] specifies the note  
assignment of the selected drum (000 to 127/C-2 to G8). You can  
also set the note assignment by holding Quad Switch [1] and  
tapping the key on the keyboard you want to set as the note for  
the drum.  
J
Only one drum can be assigned to a single note within a single  
Program sound layer. If more than one drum in a single sound is  
assigned to the same note number, only the higher number drum will  
sound.  
Range (0 to +3)  
Each drum can be assigned a range of notes (up to 3) above the  
root note which will trigger the drum sound when played. Quad  
Knob [2] specifies the note range of the selected drum (0 to +3).  
The pitch of the drum will remain the same no matter which key  
is played.  
Amp Envelope  
Decay (0 to 99, Gate00 to Gate99)  
Quad Knob [1] in the Amp Envelope (AENV) Function lets you  
adjust the Decay time of the selected drum (00 to 99, Gate00 to  
Gate99). If this is set to 0, only the very beginning of the drum  
sample is played; setting this to 99 will cause the entire drum  
sample to play. When set above 99, the Decay uses a gated  
mode. The Decay can still be set between 0 and 99, but in 5-step  
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Editing Programs: Chapter 6  
increments (e.g., Gate00 = Decay setting of 0 with gating, Gate05  
= Decay setting of 5 with gating, etc.). Gating means that the  
drum sound will continue to be played as long as the key is held.  
This is useful for longer sounds, like cymbals, when you wish to  
hear a short crash by playing a short note but can still hear a  
longer crash by keeping the note held down.  
Mute Group (Off, 1, 2, or 3)  
This is an important feature when using multiple sounds of the  
same instrument. Mute Groups allow multiple drums to share a  
single voice. For example, if you have assigned a Closed Hat and  
an Open Hat to two different notes, playing either note should  
cut-off the other (if it had recently been played). This creates a  
more realistic sound, since an actual Hi Hat is only capable of  
making one sound at a time.  
In the Amp Envelope function, Quad Knob [2] is used to assign  
the selected drum to one of the three Mute Groups. In our  
example above, both Hi Hat drums would be assigned to the  
same Mute Group. The additional Mute Groups can be used by  
other sounds that you wish to cut-off each other, but do not want  
to interfere with the Hi Hat sounds. Use Quad Knob [4] to select  
the drum (1—10) you wish to edit.  
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Editing Programs: Chapter 6  
Copying Sounds  
While editing a Program, it is helpful to be able to copy a sound to another sound  
in either the same Program or a different Program, especially if you are building  
a split or layered Program. This can be done very easily from within the Store  
function.  
To copy a sound to another sound in the same Program, or to the same sound in  
a different Program:  
¿
¡
¬
From Program Edit mode, press [STORE].  
Press PAGE [Æ] to select Page 2 of the Store function.  
Use Quad Knob [1] to select which sound (1–4) in the currently selected  
Program to copy from.  
Use Quad Knob [2] to select which sound (1–4) in the currently selected  
Program to copy to; or to select which Program (0–127) to copy to.  
The selected sound will be copied into the same sound location in the selected Program. If  
you select to copy sound 2 to Program 45, the sound will be copied into sound 2 of  
Program 45.  
ƒ
Press [STORE] to copy the sound.  
Copying Effects  
While editing a Program, it is helpful to be able to copy the Effects Patch from a  
different Program. This can be done very easily from within the Store function.  
J
Be sure to save your changes to the edited Program before going to a new Program.  
Otherwise, all your changes will be lost.  
To copy the Effects Patch from a Program to another Program:  
¿
Recall the Program which contains the Effects Patch you wish to copy,  
using the methods described on page 14.  
¡
¬
Press [STORE].  
Press PAGE [Æ] to select Page 2 of the Store function.  
Use Quad Knob [1] to select “EFFECT”, which is the Effects Patch in the  
currently selected Program to copy from.  
ƒ
Use Quad Knob [2] to select which Program (0–127) in the User Bank to  
copy to.  
The selected sound will be copied into the same sound location in the selected Program. If  
you select to copy sound 2 to Program 45, the sound will be copied into sound 2 of  
Program 45.  
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Editing Programs: Chapter 6  
ƒ
Press [STORE] to copy the sound.  
Initializing Programs  
If you want to start programming from “scratch”, you can easily reset all  
parameters to their default settings by re-initializing the software. Make sure  
your mod wheel is all the way down before re-initializing, otherwise the "zero"  
position of the mod wheel will be incorrect.  
To re-initialize the QuadraSynth Plus:  
¿
¡
¬
Press [PROGRAM] to enter Program mode.  
Turn the unit off.  
While holding down both Quad Buttons [1] and [4], turn on the power.  
The QuadraSynth Plus will come on showing Program 00, with the EDITED flag  
showing in the display. This is the Program Mode edit buffer, set to the default  
settings. Re-initializing will also reset all Global parameters to their default  
settings, and will initialize all edit buffers so that all Mix and Program  
parameters are reset to their default settings. However, none of the Programs or  
Mixes are changed when re-initializing the unit. You can proceed to edit, then  
[STORE] at any Program location you like.  
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Editing Effects: Chapter 7  
CHAPTER 7  
EDITING EFFECTS  
About Signal Processing  
The built-in effects processor of the QuadraSynth Plus is similar to that of the  
Alesis QuadraVerb 2, capable of generating multiple, fully digital effects  
simultaneously. The QuadraSynth Plus effects processor has four inputs, called  
effect sends. You might think of these as the typical post-fader sends found on a  
mixing console. In a Program, each of the four Sounds can be assigned to one of  
the four effect sends. In a Mix, each Program can use its own effects level and bus  
routing or you may override these by assigning the entire Program (all 4 sounds)  
to one of the four effect sends and all at the same level. Once you assign a Sound  
(in Program Edit Mode) or a Program (in Mix Edit Mode) to an effect send, you  
can adjust the Sound’s/Program’s Effect Send Level.  
J
To route a Sound/Program only to an effect send, and not the Main or Aux outputs,  
assign the Output parameter of the Sound/Program to “OFF,” assign its Effect Bus to  
one of the four effect sends, and adjust the Effects Level.  
The Effect Patch’s Configuration determines the arrangement of effect functions of  
each effect send. Imagine a Configuration as an arrangement of multiple effects  
processors patched together at the end of each effect send.  
Example: In one configuration, effect send 3 has its own separate reverb, while in  
another configuration it has its own delay and a level control feeding a reverb  
shared with send 1. When you’re programming effects, you will need to refer to  
the charts on pages 92—97 for the effect configuration you’re using, so you know  
how the paths from different effect functions interact.  
The Effect functions consist of: Pitch, Delay, Reverb and in some cases Misc.  
(which provides access to special effects such as EQ and Overdrive). Each  
function has several types to choose from. For example, the Pitch effect can be  
either a chorus, a flange, a resonator, etc. The Reverb can be a large hall, plate,  
gated, etc. The effect types available for each effect function depends on the  
Configuration you are using. The parameters available for an effect function  
depend on the selected effect type. Some effect types have very few parameters,  
while others have many. For example, the stereo delay effect has about twice as  
many parameters as the mono delay effect (since the stereo delay has two  
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Editing Effects: Chapter 7  
adjustments– left and right – for several parameters). Consequently, the more  
parameters an effect has, additional pages become available for that function.  
The number of pages the currently selected function has and the current page are  
always shown in the bottom left of the display.  
Each effect has stereo outputs, which may be routed to the Main Left and Right  
outputs using the Mix function (the Aux Left and Right outputs do not use the  
internal effects processing).  
Selecting Effects in Mix Mode  
Each Program has its own effects that are recalled when you select a Program.  
However, since a Mix can have up to 16 Programs (one on each Channel), you  
must select which Channel’s Program you wish to use the effects from. To select  
an Effects Patch, you must be in Mix Edit Mode, by pressing the [SELECT]  
button until the correct display appears.  
Use the FUNCTION [¨ ] and [Æ] buttons to scroll through the functions in the  
display until the word EFFECT is underlined, then press Quad Button [4]. The  
display should look like this:  
M
I
DI  
1
2
3
4
5
6
7
8
9
1
0
1
1
1
2
1
3
1
4
1
5
1
6
CHAN  
M
M
II  
X
X
PROG  
EFFECT  
P
R
ESET  
P
R
ESET  
P
RESET  
EDI TI  
N
G:  
M
I
X
P
ROGRAM  
AS  
S
I
GN  
LEVEL  
EFFECTLEVEL  
P
I
TCH  
RANGE  
EF  
F
ECT  
NAM  
E
P
AGE:  
1
Quad Knob [4] (FX-CHAN) lets you select which Channel (1—16) of the Mix  
whose Effects Patch you wish to use. If you set the Effect Channel to 1, the Mix  
will use the Effects Patch used by the Program on Channel 1. The Effect Channel  
is also used to determine what MIDI channel the Effects Patch will be set to for  
receiving MIDI controller information for the Modulators (see the Mod section  
later in this chapter for more on real-time MIDI control).  
Quad Knob [2] turns on and off the FX-MIDI function. The FX-MIDI parameter  
determines whether or not a program change received on the Effects Channel  
should only recall a new Program (“Off”) or if the Effects of the newly selected  
Program should be recalled as well (“On”). This can be set on or off. Usually you  
would want this off, so that the Effects in a Mix do not change even though you  
may select different Programs for the Effects Channel.  
Setting Effects Send Levels  
The effect send levels and effect bus assignments are saved as part of a Program  
(from Program Edit Mode), or set for each Channel in a Mix (from Mix Edit  
Mode). Keep in mind that these are separate from any changes that will be made  
to the effects settings If you are in Mix Mode and are changing settings in both  
Mix Edit and Effects Edit modes, you will have to STORE both the Program that  
is on the Effect Channel (thus storing its Effects Patch), and the selected Mix, in  
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Editing Effects: Chapter 7  
order to have your changes remembered and heard the same way in the future.  
The actual arrangement of depth of reverb, delay time, etc., is saved as part of the  
Effects Edit parameters when a Program is stored. It is possible for different  
Mixes to share the same Effects Patch. So keep in mind that when you edit an  
Effects Patch, it may affect the sound of any other Mixes that also use it.  
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Editing Effects: Chapter 7  
Clip  
While routing sounds into the effects processor, the word “CLIP” will  
temporarily appear in the display if an input is overloading the effects. If this  
should occur, try reducing the Input Levels for each of the effects devices in the  
current configuration, and (if necessary) reduce the Effects Levels in the  
Mix/Program.  
Editing Effects  
The Effects Patches themselves are not edited in Program Edit Mode or Mix Edit  
Mode, but (could you guess it?) Effects Edit Mode. You can enter Effects Edit  
mode by pressing the [SELECT] button until the display looks something like  
this:  
MIDI  
1
CHAN  
P
P
R
ROOG  
G
P
RESET  
EDI TI  
N
G:  
1
EFFECT  
P
I
TCH  
M
OD  
CONFI  
G
REVERB  
DELA  
Y
M
I
X
M
I
SC.  
P
AGE:  
1
2
The basic method of navigating through the displays in Effects Edit mode is  
similar to that in Program Edit Mode and Mix Edit Mode.  
The FUNCTION [¨ ] and [Æ] buttons and the DIRECT SELECT buttons  
are used to select a function (Pitch, Mod, Name, Configuration, Reverb, Delay  
and Mix).  
If a function has more than one page, the display will indicate the  
number of pages available in the bottom left corner. Use the PAGE [¨ ] and [Æ]  
buttons to scroll through a function’s pages.  
Use the [EDIT 1] button to select which of the four effect sends you want  
to edit (the [EDIT 4] button will not let you edit multiple sends, but rather will  
switch the display back to Program Edit mode and enable Edit 4 mode).  
The important thing to understand is the hierarchy of the displays. Think of it as  
a three dimensional game of Chess, where you can move among three different  
axes. Each function has 1 or more pages. But, the number of pages a function has  
available will differ when another effect send is selected (using the [EDIT 1]  
button). For example, if you are using Configuration #1 and trying to edit the  
Reverb parameters, you would need to have effect send 1 selected, because that’s  
where the Reverb is located. So, you not only have to be aware of how to select a  
function and a page, but how to select the effect send as well.  
Not all effects are available in each Configuration. For example, if you were to  
select the Pitch function on effect send 4 in Configuration #1, the display would  
read, “(NOT IN THIS CONFIG).” This is because a Pitch module is available on  
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Editing Effects: Chapter 7  
sends 1, 2 and 3 in Configuration #1, but not on send 4—as you can see in the  
chart on page 92.  
Although only used in Configuration #s 4 and 5, the word “MISC.” will appear  
in the display. This can be selected in the same manner as any other function  
using the FUNCTION [¨ ] and [Æ] buttons. The MISC function is where you  
access the EQ parameters used in Configuration #4, and the Overdrive effect’s  
parameters in Configuration #5. If you are using Configuration #s 1–3, and you  
select the MISC function, the display will read “(NOT IN CONFIG)”, since there  
are no EQ or Overdrive parameters in these configurations.  
Storing Effect Patches In Program Mode  
Effects are an extension of a Program. So, when you store a Program, you store  
its Effects Patch along with it. Once a Program’s Effect Patch has been altered, the  
display will show the word “EDITED” next to the Program number (if in  
Program Mode; when editing the Effect Patch in Mix mode, the word “EDITED”  
will appear next to the Program number only when the Effect Channel is  
selected). This indicates that the current Effect Patch in the edit buffer is different  
from what is stored in memory for the selected Program.  
While in Effects Edit mode, press [STORE] at any time to go to Store mode. Store  
mode has several pages, but the main storing function is found in the first page.  
MIDI  
1
CHAN  
P
P
R
ROOG  
G
P
RESET  
P
AGE:  
1
2
3
4
5
6
To store the edited Program along with its Effect Patch into the same location it  
was recalled from, simply press [STORE] again, and it will be stored. To store the  
edited Program into a different location, use Quad Knob [2] to select a different  
Program number (000—127) in the User Bank to store it to. If a RAM Sound Card  
is inserted, you can use Quad Knob [1] to select a Card Bank to store the Program  
to.  
Storing Effect Patches in Mix Mode  
When in Mix Play Mode or Mix Edit Mode, the Effect Program number shown in  
the display is the Program number selected as the Effect Channel. Storing the  
Mix will save this number, but will not store any changes you may have made to  
the Effect Patch itself.  
If [STORE] is pressed twice while editing a Program that is on the Effect  
Channel, both the Program and its Effects will be stored.  
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Editing Effects: Chapter 7  
If [STORE] is pressed twice while editing a Program that is on a Channel  
other than the Effect Channel, the edited Program will be stored without altering  
its previous Effects settings.  
If [STORE] is pressed twice while editing a Mix (Mix Edit Mode), only  
the Mix parameters will be stored, not the individual Programs or the Effects  
Patch.  
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Editing Effects: Chapter 7  
Copying Effect Patches  
When you want a Program to use the Effects from a different Program, you must  
copy that other Program’s Effects into the Program you are working on. This is  
done within Store Mode using the “Copy Effect” function. First, select the  
Program which contains the Effects you wish to copy. And, of course, you can  
only copy Effects to Programs that are in the User Bank or on a RAM Sound Card  
Bank.  
For more about copying effects, see page 35.  
Configurations  
A Configuration is essentially the starting point of any Effects Patch. You must  
select the Configuration you are going to use before making any other edits,  
since all routings and parameters change to their default settings each time you  
change the configuration. Each Configuration is a unique arrangement of  
multiple effect blocks, distributed across the four effect sends. Some effect sends  
may have three different effects (pitch, delay and reverb) on them.  
Configurations also determine where the signal to a block comes from, and  
where the output of each block goes to -- the main outputs, the next effect in line,  
or even to an effect block belonging to another effect send. The Configuration  
diagrams on the next six pages provide a crucial “road map” you’ll need to guide  
you through the many paths that are possible in each configuration. Refer to  
them as you program the effect.  
The five Effect Configurations are:  
Configuration #1: 4-Sends, 1 Reverb  
Configuration #2: 4-Sends, 2 Reverb  
Configuration #3: 4-Sends, 1 Lezlie  
Configuration #4: 2-Sends, With EQ  
Configuration #5: OD>CHS>DDL>REV>LZ  
The Configuration function is used to select the Configuration for the Effects  
Patch you are editing. Use the FUNCTION [¨ ] and [Æ] buttons to scroll through  
the functions in the display until the word CONFIG is underlined. The display  
should look like this (from Mix Edit Mode):  
MIDI  
1
CHAN  
4
-
S
E
N
D
S
,
1
REVERB  
P
P
R
ROOG  
G
CONFI GURATI ON  
P
RESET  
EDI TI  
N
G:  
1
EFFECT  
P
I
TCH  
M
OD  
CONFI  
G
REVERB  
DELA  
Y
M
I
X
M
I
SC.  
P
AGE:  
1
Quad Knob [1] selects the Configuration. As you scroll through the various  
Configu-rations, each one’s name will appear in the upper right section of the  
display.  
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Editing Effects: Chapter 7  
Here is a run-down of the various Configurations:  
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Editing Effects: Chapter 7  
Configuration #1: 4-Sends, 1 Reverb  
Pitch 1 Delay 1Reverb 1  
Mono chorus Mono delay  
Stereo chorus Stereo delay  
Plate 1  
Plate 2  
Mono flange  
Stereo flange  
Pitch detune  
Resonator  
Ping-pong delay  
Room  
Hall  
Large  
Gate  
Reverse  
Pitch 2 Delay 2Reverb 2  
Mono chorus Mono delay  
Stereo chorus Stereo delay  
Balance and level to Reverb 1  
Mono flange  
Ping-pong delay  
Stereo flange  
Pitch detune  
Resonator  
Pitch 3 Delay 3Reverb 3  
Resonator  
Delay 4 Reverb 4  
Mono delay Send/delay mix and level to  
Mono delay  
Balance and level to Reverb 1  
Reverb  
1
Think of the diagram as a "road map" showing all possible paths from  
the starting points (FX SEND 1 through 4) to the ultimate destinations  
(MAIN LEFT and MAIN RIGHT at the top of the page). The dotted lines  
indicate the divisions between different functional blocks, and the solid  
lines indicate signal paths between the blocks and controls. The diagram  
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Editing Effects: Chapter 7  
is similar to a block diagram for a mixer, with signal moving generally  
from the left to the right. The number next to each function name  
represents one of the four effect sends. For example, Delay 2 refers to the  
Delay effect on effect send 2.  
This Configuration #1 provides three Pitch effects, four Delay effects and  
one Reverb effect. The Pitch effects are found on effect sends 1, 2 and 3,  
but while the Pitch effects on sends 1 and 2 are stereo and their types are  
selectable (Mono Chorus, Mono Flange or Resonator), the Pitch effect on  
send 3 is mono and can only be used as a Resonator. Effect send 4 has no  
Pitch effect.  
Each of the four sends has its own Delay effect, but while the Delay  
effects on sends 1 and 2 are stereo, the Delay effects on sends 3 and 4 are  
mono.  
Each effect send can be routed through the Reverb. Since there is only  
one Reverb effect, it is found in the first effect send (see next section on  
Reverb). ꢀ Reverb parameters that set the sound of the reverb itself (such  
as high and low decay, reverb type, predelay, etc.) are found only when  
"EDITING: 1" is displayed. However, each of the 4 effect sends has  
controls for how much dry signal and how much effected signal are sent  
to the Reverb effect.  
Example: The Reverb 2 block allows you to send signal to the reverb from  
four different points in the second effects chain: a) directly from effects  
send 2, b) the output of Pitch 2, c) the input of Delay 2, or d) the output  
of Delay 2. You can even send a combination of these to the reverb. But  
to change any other reverb parameters, you must return to editing  
Reverb 1.  
Each Pitch, Delay and Reverb module has its own independent Mix  
output level (i.e., how much of their output is routed directly to the Main  
Left and Right outputs). The Mix function is where you determine how  
the effects will actually be heard.  
Mix 1, for example, is where you can control the outputs of Pitch 1,  
Delay 1, and Reverb 1 to the main outputs. The Mix parameter controls  
how much an effect block feeds directly to the main outputs, but doesn't  
control how much it feeds to any other blocks that may follow it. For  
example, when Pitch 1’s Mix control is set to 0, it is still available as an  
input to Delay 1 and Reverb 1.  
Think of the Mix function in the QuadraSynth Plus's effects section as  
being similar to the effect return control on a mixing console. For  
example, if Effect Send 1's Mix Reverb Output parameter is set to 0, you  
won't be able to hear reverb regardless of how much input you feed it  
from any of the effect buses.  
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Configuration #2: 4-Sends, 2 Reverb  
Delay 1Pitch 1 Reverb 1  
Mono delay  
Mono chorus Plate 1  
Stereo chorus Plate 2  
Room  
Hall  
Large  
Gate  
Reverse  
Reverb 2  
Level to Reverb 1  
Reverb 3  
Pitch 3  
Mono chorus Plate 1  
Plate 2  
Room  
Hall  
Large  
Gate  
Reverse  
Reverb 4  
Reverb 4  
Level to Reverb 3  
This Configuration differs from Configuration #1 in many ways. In this  
Configuration, there is only one Delay effect, two Pitch effects and two  
Reverb effects. Effect send 1 is routed through the mono Delay, then a  
stereo Pitch effect, and finally a stereo Reverb effect. Send 2 has no  
effects of its own, but can be routed to the same Reverb effect as send 1.  
Send 3 is routed through a mono Pitch effect, and then a stereo Reverb  
effect. Send 4 has no effects of its own, but can be routed to the same  
Reverb effect as send 3.  
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Effect send 1’s Delay, Pitch, and Reverb can feed the Mix output directly.  
Unlike the first configuration, however, Pitch 3 can be routed to the Mix  
only after passing through Reverb 3.  
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Configuration #3: 4-Sends, 1 Lezlie  
A
UX LEF  
T
A
A
UX LEF  
T
A
UX RI GHT  
UX RI GHT  
M
AI  
N
LEF  
T
M
M
AI  
AI  
N
N
LEF  
T
M
AI  
N
RI GHT  
RI GHT  
1
2
3
1
2
3
4
M
I
X
1
BAL.  
FX SEND  
FX SEND  
FX SEND  
1
2
3
LEZLIE  
DELA  
Y
1
BAL.  
1
REVERB  
AM  
P
2
P
I
TCH  
TCH  
TCH  
1
2
3
DELA  
Y
1
REVERB 1  
BAL.  
P
I
TCH  
2
DELA  
Y
2
BAL.  
1
AM  
P
2
P
I
DELA  
Y
2
REVERB 2  
BAL.  
P
I
TCH  
3
DELA  
Y
3
BAL.  
1
AM  
P
2
P
I
DELA  
Y
3
REVERB 3  
BAL.  
1
FX SEND  
4
DELA  
Y
4
AM  
P
2
DELA  
Y
4
REVERB 4  
Pitch 1 Delay 1Reverb 1  
Lezlie Mono delay Plate 1  
Plate 2  
Hall  
Room  
Hall  
Large  
Gate  
Reverse  
Pitch 2 Delay 2Reverb 2  
Mono chorus Mono delay  
Stereo chorus Stereo delay  
Balance and level to Reverb 1  
Balance and level to Reverb 1  
Mono flange  
Ping-pong delay  
Stereo flange  
Pitch detune  
Resonator  
Pitch 3 Delay 3Reverb 3  
Resonator  
Delay 4 Reverb 4  
Mono delay Mix and level to Reverb 1  
Mono delay  
This Configuration is similar to Configuration 1, except it provides a  
stereo “Lezlie” effect on send 1, which emulates a rotating speaker effect  
commonly heard with organ sounds. This is followed by a Delay effect  
before going to the single stereo Reverb effect. Sends 2 and 3 have Pitch  
modules preceding Delay modules, which are then routed to Reverb 1.  
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Send 4 has only a Mono Delay effect, which may also be routed to  
Reverb 1.  
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Configuration #4: 2-Sends, with EQ  
Pitch 1 Delay 1Reverb 1  
Mono chorus Mono delay  
Stereo chorus Stereo delay  
Misc. 1  
Plate 1 EQ  
Plate 2  
Mono flange  
Stereo flange  
Pitch detune  
Resonator  
Ping-Pong delay  
Room  
Hall  
Large  
Gate  
Reverse  
Pitch 2 Delay 2Reverb 2  
Mono chorus Mono delay  
Stereo chorus Stereo delay  
Balance and level  
to Reverb 1  
Mono flange  
Stereo flange  
Pitch detune  
Resonator  
Ping-Pong delay  
In this Configuration, note that Sends 1 and 2 are identical to that of  
Configuration #1. However, Sends 3 and 4 have been removed. In their  
place, we have added a shelving EQ module to the main outputs. This  
means you have bass and treble boost controls for all sounds coming out  
of the main outputs (not just the sounds routed to the Effects Sends).  
J
If you are using Configuration #4, routing any of the Program’s Sounds to  
Send #s 3 or 4 will have no effect. In other words, it’s as if you routed channels  
of your mixing console to effects sends that aren't connected to anything.  
The MISC function is where you access the EQ parameters used in this  
configuration. This can be selected in the same manner as any other  
function using the FUNCTION [¨ ] and [Æ] buttons. The shelving EQ  
provides bass and treble boost, and affects the entire main output.  
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Configuration #5: OD>CHS>DDL>REV>LZ  
A
U
X
L
E
F
T
A
U
X
R
IG  
H
T
M
A
I
N
LEFT  
M
A
I
N
RI  
G
H
T
M
I
SC  
M
I
X
1
1
1
1
1
B
A
L
.
B
A
L
.
B
A
L
.
B
A
L
.
FX  
S
E
N
D
1
PI  
T
C
H
1
D
E
L
A
Y
1
1
O
V
E
R
D
R
I
V
E
1
R
E
V
E
R
B
1
L
E
ZL  
I
E
A
M
P
2
2
MISC.  
1
PITCH  
1
DELAY  
1
R
E
V
E
R
B
1
PITCH  
1
F
X
S
E
N
D
2
3
4
FX  
SE  
ND  
FX  
S
E
ND  
Pitch 1 Delay 1Reverb 1  
Misc. 1  
Mono chorus Mono delay  
Plate 1 Overdrive  
Plate 2 -------------  
Room EQ  
Mono flange  
Resonator  
------------------  
Lezlie  
Stereo delay  
Ping-Pong delay  
Hall  
Large  
Gate  
Reverse  
This is an “all-for-one” Configuration. You get six effects all at once, and  
they are all found in the Send 1 section, but other sends may be used to  
access particular parts of the chain. Send 1 feeds the Overdrive effect  
which provides classic distortion. The Overdrive output then feeds the  
Pitch effect. The Pitch effect has a second input which can come from  
either Sends 1, 2, 3 or 4 . These two inputs can be mixed together.  
The Delay effect has two inputs which can be mixed together. The first  
input comes from the Pitch effect’s output. The second input can come  
from either Sends 1, 2, 3 or 4 , or the Overdrive effect’s output, or Pitch  
effects input.  
The Reverb effect has two inputs which can be mixed together. The first  
input can come from the Pitch effect’s output or the Delay effect’s  
output. The second input can come from either Sends 1, 2, 3 or 4 , or the  
Overdrive effect’s output, or the Delay effect’s input.  
The Lezlie effect (found in the Pitch Function, Page 4) has two inputs  
which can be mixed together. The first input can come from the Delay  
effect’s output or the Reverb effect’s output. The second input can come  
from either Sends 1, 2, 3 or 4 , or the Overdrive effect’s output, or the  
Pitch effect’s input or output, or the Delay effect’s input, or the Reverb  
effect’s input.  
The outputs of all these effects are routed back to the Main Outputs, and  
sent through the shelving EQ effect (found in the Misc. Function, Page 4).  
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Editing Effects: Chapter 7  
Reverb  
Reverb can be thought of as a great number of distinct echoes, called reflections,  
that occur so fast that our ear hears them blurred together as one. In nature,  
different sized spaces give distinctly different sounding reverbs, depending on  
the size and shape of the space, and the texture of surfaces that the reflections  
bounce off of. The various parameters in the effects processor make it possible to  
simulate nearly any natural reverberant space that can be imagined, and a few  
artificial ones as well.  
Reverb (Page 1)  
MIDI  
1
CHAN  
P
P
R
ROOG  
G
P
RESET  
EDI TI  
N
G:  
1
EFFECT  
P
I
TCH  
M
OD  
CONFI  
G
REVERB  
DELA  
Y
M
I
X
M
I
SC.  
P
AGE:  
1
2
3
4
The Reverb function is used to edit Reverb parameters. In all  
configurations, page 1 of the Reverb function selects what the reverb is  
“hearing” (i.e., where the input of the reverb is coming from). The source  
can come directly from the Effect bus, the output of other effects in the  
chain before it, or a mix of several of them. Example: In Configuration #1,  
page 1 of the Reverb function (shown above) allows you to select either  
one or two sources to be routed to the reverb’s input. You can choose  
from the Delay output, the Delay input, the Pitch output and the  
uneffected send input (dry signal). You can then adjust a balance  
between these and set an overall input level.  
Input 1  
In configurations 1, 3, 4, and 5, there are two inputs to the  
Reverb. Both Inputs 1 and 2 can select a signal from several  
locations in the signal chain. Quad Knob [1] can select either the  
Pitch output or the Delay output as Input 1. If the signal is taken  
from the Pitch output, the Reverb will be chorused, flanged,  
detuned or resonating, depending upon which Pitch type is  
selected. (Note that the delay signal may already have passed  
through the Pitch module, depending on the Input settings of  
the Delay module.)  
Input 2  
By using Quad Knob [2], Input 2 can have as its source either the  
Pitch output, the Delay output, or the dry effect send signal. If  
the signal is taken from the Delay output, the Reverb will be  
delayed by the amount of delay time set for the Delay. If the  
signal is taken from the Pitch output, the Reverb will be  
chorused, flanged, detuned or resonating, depending upon  
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Editing Effects: Chapter 7  
which Pitch type is selected. If the signal is taken from the effect  
send, the Reverb will receive direct, uneffected signal.  
Input Balance  
Quad Knob [3] allows you to control the balance between Reverb  
Inputs 1 and 2 and therefore control the blend between the  
various input sources. This makes it possible to have the signal  
from the Pitch or Delay sections, or the direct effect send in any  
combination or amount.  
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Input level  
Quad Knob [4] controls the overall Input Level going into the  
Reverb.  
Chorus Input Level  
If Configuration #2 is selected (refer to block diagram of  
Configuration #2, earlier in this chapter), the first page of the  
Reverb function will look like this:  
MIDI  
1
CHAN  
P
P
R
ROOG  
G
P
RESET  
EDI TI  
N
G:  
1
EFFECT  
P
I
TCH  
M
OD  
CONFI  
G
REVERB  
DELA  
Y
M
I
X
M
I
SC.  
P
AGE:  
1
2
3
4
The Configuration has two Reverbs, one on send 1 (which send 2  
can share), the other on send 3 (which send 4 can share). There is  
only one parameter in this page: Chorus Input Level. Quad  
Knob [1] lets you adjust the level of the signal coming from the  
Pitch output going into the Reverb, otherwise the signal comes  
purely from the Pitch input.  
The other parameters and pages in the Reverb function are  
identical, regardless of which Configuration is being used. Only  
page 1 is different, because of the fewer input choices the Reverb  
has in this Configuration.  
Send Input Levels  
If Configuration #1 is selected and you press [EDIT 1] to  
advance to effect send 2, the display will now show you the  
parameters that represent the signal levels on send 2 going into  
the Reverb. Note that there is now only 1 page available, since  
the other reverb parameters are found back on effect send 1.  
Press [EDIT 1] again to advance to send 3, and the display will  
still look the same, but now the parameters adjust the signal  
levels on send 3 going into the Reverb. If you press [EDIT 1]  
again and advance to send 4, the display will look like this:  
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Editing Effects: Chapter 7  
MIDI  
1
CHAN  
P
P
R
ROOG  
G
P
RESET  
EDI TI  
N
G:  
EFFECT  
4
P
I
TCH  
M
OD  
CONFI  
G
REVERB  
DELA  
Y
M
I
X
M
I
SC.  
P
AGE:  
1
There are only two parameters: Balance and Input Level. This is  
because in Configuration #1, effect send 4 only has a Delay  
effect, and not a Pitch effect like the other effect sends do. Quad  
Knob [1] controls the Balance between the Delay output and the  
dry effect send signal, while Quad Knob [3] controls the overall  
input level to the Reverb.  
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Editing Effects: Chapter 7  
If Configuration #2 is selected and you press [EDIT 1] to  
advance to effect send 2 while the Reverb function is selected,  
the display will look like this:  
MIDI  
1
CHAN  
P
P
R
ROOG  
G
P
RESET  
EDI TI  
N
G:  
2
EFFECT  
P
I
TCH  
M
OD  
CONFI  
G
REVERB  
DELA  
Y
M
I
X
M
I
SC.  
P
AGE:  
1
Quad Knob [1] lets you adjust the level of the signal coming  
from effect send 2 going into the Reverb. Send 2 in this  
Configuration has no effects of its own. Therefore, there are no  
input or input mix controls in this page, since there is only one  
possible signal choice. Send 2 is intended to be used for signals  
that you want to send to Reverb 1, but bypass Delay and Pitch 1.  
In Configuration #2, send 4 is similar to send 2, in that it has no  
effects of its own but serves as a bypass going directly to Reverb  
3.  
Reverb (Page 2)  
Pressing the PAGE [Æ] button will advance the display to Page 2 of the  
Reverb function. However, you must have the correct effect send  
selected (1—4) in order to get at the Reverb parameters (in Config. #1, 3,  
4, and 5, the Reverb parameters are found only on effect send 1; in  
Config. #2, they are found on sends 1 and 3 since there are two separate  
Reverbs). Here you will find parameters for selecting the Reverb type,  
adjusting Pre-Delay Time and Pre-Delay Mix.  
Reverb Type  
The QuadraSynth Plus has seven different reverb types, all  
stereo, each of which simulates a different space or produce a  
different ambient effect. Use Quad Knob [1] to select one. The  
different Reverb types are:  
Plate 1 & 2. The two Plate reverb types simulate an artificial  
device known as a Plate. In the early days of recording, Plates  
were extremely popular because they were almost the only way  
to provide any sort of artificial ambiance to a recording. The  
sound of a well-tuned Plate has become quite popular over the  
years especially when used on vocal or drum sounds. The two  
Plate reverbs differ in subtle tonal characteristic changes such as  
those found in different manufacturers’ plate reverbs.  
Room. The Room reverb type simulates not only rooms of  
different sizes, but rooms with different surface materials. A  
room with soft surfaces such as carpet will produce a  
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Editing Effects: Chapter 7  
reverberant sound with much less high end (treble) than a room  
with hard surfaces. This reverb type can easily simulate both  
examples and many, many more.  
Hall. Much larger than a room, Halls are characterized by their  
high ceilings, irregular shapes, and generally uniform density of  
reflections.  
Large. Much larger than a hall, this reverb type emulates large  
ambient spaces such as amphitheaters, gymnasiums, etc.  
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Editing Effects: Chapter 7  
Gated. Gated Reverb is a very popular effect on drums first  
found on English records in the early 1980s. This reverb type can  
simulate applying a noise gate (a device that automatically  
decreases the volume once the signal falls below a certain level)  
across the output of the reverb thereby causing the initial attack  
of the reverb to sound very big, but the tail of the reverb to be  
cut off very quickly. Although this effect is not found in nature,  
it works great for modern drums, percussion, and any quickly  
repeated, transient source.  
Reverse. The Reverse Reverb type is an inverted reverb in which  
the volume envelope is reversed. This means that the signal  
begins softly but grows louder until it is cut off, rather than loud  
to soft as normal.  
Pre-Delay Time  
Pre-Delay is the slight delaying of the Reverb itself so that the  
dry signal more easily stands out from the Reverb. A bit of Pre-  
Delay can sometimes make certain instruments (such as snare  
drums) sound bigger. Use Quad Knob [2] to adjust the Pre-Delay  
Time in 10ms intervals, and/or use Quad Knob [3] to adjust the  
Pre-Delay Time in 1ms intervals. This Pre-Delay is part of the  
Reverb itself; don’t confuse it with the separate Delay modules  
available under the Delay function.  
Pre-Delay Mix  
Quad Knob [4] allows you to mix the amount of Pre-Delay into  
the Reverb signal path. This gives you the ability to hear a bit of  
the Reverb before the loudest part of the Reverb (the Pre-  
Delayed Reverb) sounds. This makes for bigger and smoother  
sounding Reverb settings.  
Reverb (Page 3)  
Input Filter  
This is a low-pass filter which comes before the Reverb input.  
Use Quad Knob [1] to adjust the filter frequency. Lower the  
Input Filter to remove high frequencies from the input signal  
before they go into the Reverb.  
Decay  
The Reverb Decay determines how long the Reverb will sound  
before it dies away. When using the Reverse Reverb type,  
Reverb Decay controls the Reverse Time.  
Low Decay and High Decay  
These two parameters allow the Decay Time to be set separately  
for both the low and high frequencies of the Reverb. This means  
that you have control over the tonal shape of the Reverb itself,  
being able to make the high frequencies die faster if the effect is  
too bright, and being able to make the lows die faster if the effect  
is too boomy. This allows you to simulate different surfaces of a  
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Editing Effects: Chapter 7  
room or hall, with softer surfaces absorbing more high  
frequencies and smaller rooms having faster low frequency  
decay.  
If the selected Reverb type is Gate, the Low Decay parameter is  
unavailable.  
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Editing Effects: Chapter 7  
Reverb (Page 4)  
Density  
Density controls how the first reflection of the reverb effect will  
appear. When set to 0, the first reflection is heard alone without  
any other reflections. When set to 99, the first reflection appears  
to “fade-in” and then “fade-out”. This is because a number of  
reflections will occur just before and just after the first reflection,  
in addition to the remaining reflections heard after the first  
reflection. Thus, the reverb sounds more “dense”.  
If the select Reverb type is Large, the Density parameter is  
unavailable.  
Diffusion  
Diffusion determines the “thickness” of the reverb sound by  
adding more reflections to the reverb’s decay. With lower  
diffusion settings, you may be able to actually hear the  
individual echoes that make up the overall reverb sound. With  
higher diffusion settings, the echoes increase in number and  
blend together, washing out the reverb’s decay. Greater  
diffusion works better with percussive sounds, whereas less  
amounts of diffusion work well with vocals and other sustained  
sounds.  
Note: The illustration above reflects a Density setting of 0.  
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Delay  
The Delay function is used to edit Delay parameters.  
Delay (Page 1)  
The QuadraSynth Plus’s effects processor has three different Delay types  
available.  
Note: Some delay modules only feature a mono Delay, and therefore the  
Delay Type parameter will be unavailable. Instead the parameters  
normally found on page 2 of the Delay function are shown in page 1, and  
there are no other pages (please refer to next section for a description of  
those parameters).  
Delay Type  
Ping-Pong. This is called a “Ping Pong Delay’ because the  
output bounces from side to side (left to right) in stereo with the  
speed determined by the delay time. The maximum delay time is  
399 milliseconds.  
Stereo Delay. The Stereo Delay is actually two separate delays,  
which can be individually varied. The maximum delay time for  
each delay is 399 ms.  
Mono. The Mono Delay has the advantage of twice the available  
delay time, or 799 ms in Configuration #1, 1199 ms in  
Configuration #2.  
Delay (Pages 2 and 3)  
In Page 2 of the Delay Function you will find the remaining parameters  
for the Delay function. If the Stereo Delay type is selected, you can press  
PAGE [Æ] again to advance to Page 3. This is because the Stereo Delay  
type has parameters for both the Left and Right channels.  
Input  
Quad Knob [1] is used to balance the Delay Input between the  
signal coming from the Pitch effect output (if applicable) and the  
dry effect send.  
Time/Left Time/Right Time  
This is the actual Delay time, which determines the amount of  
time the input signal will be delayed. Use Quad Knob [2] to  
adjust the delay time in 10 ms intervals; use Quad Knob [3] to  
adjust the delay time in 1 ms intervals.  
Feedback/Left Feedback/Right Feedback  
Quad Knob [4] is used to adjust the Delay Feedback, which is a  
portion of the delay signal output being “fed back” into the  
input. This results in the delay repeating itself. The more  
feedback, the more repeats.  
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Editing Effects: Chapter 7  
Pitch  
The Pitch function is used to edit Pitch parameters.  
Pitch (Page 1)  
The first page of the Pitch function will look different depending on the  
selected Configuration and which effect send you are editing. Normally,  
there will only be one parameter: Pitch Type. However, in the case of  
Configuration #2, a second parameter (Delay Input) is also available.  
Pitch Type  
The Pitch Type function allows access to 6 pitch altering modes.  
The Pitch types available are: Mono Chorus, Stereo Chorus,  
Mono Flange, Stereo Flange, Pitch Detune and Resonator.  
Although some of these effects can sound similar to one another  
depending on the parameter settings, each is achieved  
differently and can be quite dramatic under the right  
circumstances. Pitch effects are achieved by splitting the signal  
into two parts, effecting the pitch of one of the parts, then mixing  
them back together. This eventual mixing is essential since the  
overall sound of the effect is achieved by the actual difference  
between the normal, uneffected signal and the effected signal.  
So that you can better understand the differences between the  
Pitch type effects, and therefore better apply them to your music,  
here is a brief explanation of each.  
Mono Chorus. The Chorus effect is achieved by taking part of  
the signal, slightly delaying it, and then slightly detuning it as  
well. The detuning is further effected by being modulated by an  
LFO which causes the detuning to vary. Many variables are  
available in this scheme. The LFO depth can be varied, the LFO  
speed can be varied, and a portion of the detuned signal can be  
fed back to the input to increase the effect. Finally, the waveform  
shape of the LFO can be changed from a smooth triangle to a  
more abrupt squarewave to make the pitch detuning more  
pronounced.  
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Stereo Chorus. In the case of a Stereo Chorus, the signal is split  
into three parts with a dry signal and a separate Detuning  
section for both left and right channels. When the left channel is  
detuned sharp, the right is detuned flat, and vice versa. Once  
again, this causes the effect to become more pronounced and  
dramatic.  
Mono Flange. First used in the 1960s, “Flanging” was achieved  
by the use of two tape recorders that would record and play  
back the same program in synchronization. By alternately  
slowing down one tape machine, and then the other, different  
phase cancellations would occur. Since the slowing down of the  
tape machines was done by hand pressure against the flanges of  
the tape supply reels, the term “Flanging” came into being.  
The effect of Flanging is achieved by splitting and slightly  
delaying one part of the signal, then varying the time delay,  
again with an LFO. The delayed signal is then mixed back with  
the original sound to produce the “swishing” or “tunneling”  
sound.  
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Many variables are available, from varying the speed and depth  
of the LFO to feeding back part of the signal to make the effect  
stronger. The Flanger’s waveform shape can be either “Normal”  
or “Inverted”. Use the “Inverted” setting for a more dramatic  
flange effect.  
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Stereo Flange. In the case of the Stereo Flange, the signal is split  
into three parts with a dry signal and a separate Delay section  
for both left and right channels with one channel flanging up  
while the other channel flanges down. Once again, this causes  
the effect to become more pronounced and dramatic.  
Pitch Detune. As the name implies, Pitch Detune takes a part of  
the signal and detunes it either sharp or flat. When mixed back  
with the original dry signal, the popular “12 string guitar” effect  
is produced.  
Resonator. This can be thought of as a highly resonant filter, or  
a filter that is tuned to a specific frequency with a lot of  
emphasis, which will cause the frequency that the resonator is  
set at to be highly accentuated.  
Delay Input  
Quad Knob [2] can adjust the level of the signal coming from the  
Delay output going into the Pitch Input. The Delay Input  
parameter is only available when editing a effects bus which has  
the Delay effect ahead of the Pitch effect in the selected  
Configuration (Example: Configuration #2, effect send 1).  
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Pitch (Page 2)  
If the Pitch type is Mono Chorus, Stereo Chorus, Mono Flange or Stereo  
Flange, page 2 of the Pitch function contain the following four  
parameters:  
Waveform Shape  
Quad Knob [1] determines the LFO’s waveform shape. This  
parameter only appears when the Mono or Stereo Chorus or  
Flange are selected. The Waveform Shape of the LFO can be  
changed from a sine waveform, which provides a smoother,  
more even sound, to a square or triangle waveform, which  
makes the Chorus or flange effect more pronounced.  
Speed  
Quad Knob [2] is used to adjust the LFO Speed of all Pitch types,  
with the exception of Pitch Detune and Resonator.  
Depth  
Quad Knob [3] is used to adjust the LFO Depth of all Pitch types,  
with the exception of Pitch Detune and Resonator. The LFO  
Depth, which is the amount of pitch alteration, can be adjusted  
to produce the desired effect.  
Feedback  
Quad Knob [4] is used to adjust the LFO Feedback of all Pitch  
types, with the exception of Pitch Detune and Resonator. A  
portion of the output of the Pitch section can be “fed back” into  
the input in order to make the effect more tonal or pronounced.  
Detune  
If the Pitch type is Pitch Detune, page 2 will have only this  
parameter. Use Quad Knob [1] to adjust the tuning of the Pitch  
Detune effect.  
Resonator Tuning and Decay  
If the Pitch type is Resonator, page 2 of the Pitch function will  
have two parameters. Use Quad Knob [1] to adjust the Resonator  
tuning, and Quad Knob [3] to adjust the Resonator Decay.  
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Mod  
The Mod Function lets you control various effects parameters from the various  
controls on the QuadraSynth Plus (keyboard, after-touch, pitch-bender, etc.) or  
from the MIDI input. This is extremely useful when dynamic or real-time control  
is required in a live playing situation. It is possible to control up to 2 parameters  
simultaneously. The Modulation assignments are saved with the Effects Patch.  
Don’t confuse this Mod Function with the Mod Function used by the Programs;  
they are independent destinations, though they can come from the same source.  
Note: Modulating any effect parameter (with the exception of chorus speed)  
while audio is passing through it can result in audio artifacts or noises due to  
discontinuities in the modulation source.  
Selecting the Modulator  
The are two Modulators. You can select between these by using the  
PAGE [¨ ] and [Æ] buttons. Page 1 displays the parameters of Modulator  
#1, while page 2 displays the parameters for Modulator #2.  
Mod Source  
The Mod Source parameter selects the MIDI controller which will  
remotely cause a change (modulate) in one or two of the parameters in  
the effects processor. Nearly every MIDI controller can become a Mod  
Source (using controllers A-D, set in Global mode, page 3), with the most  
common controllers appearing as a direct option in the display. Quad  
Knob [1] selects the Mod Source. The options for the Mod Source are:  
Aftertouch  
MIDI Volume  
Sustain Pedal  
Controller A—D  
Mod Wheel  
Pedal 1 •  
Pitch Wheel  
Pedal 2 •  
Mod Destination  
The Mod Destination is the parameter that will be controlled by the  
selected Mod Source. Quad Knob [2] selects the Mod Destination. The  
possible Destination parameters are:  
Pitch Speed  
Pitch Balance  
Delay Level  
Reverb Decay  
Pitch Depth  
Delay Time  
Reverb Balance •  
Pitch Level  
Delay Feedback  
Reverb Input  
Reverb Low Decay  
Reverb  
High Decay  
Reverb Diffusion  
Reverb Level  
If the selected Configuration has a particular effect on more than one  
effect send (for example, Config. #1 has a delay on each send), then some  
Mod Destination parameters will be listed more than once. For example,  
the Delay Time parameter will appear four times (“D1 Time,” “D2  
Time,” “D3 Time,” and “D4 Time”). In the case of Pitch, where you can  
choose from various pitch effects, different parameters are available  
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depending on the effect chosen. However, the Mod Destinations retain  
their names. Example: If the Resonator is the Pitch effect, the Pitch Speed  
Modulation Destination controls the first parameter in the Resonator  
(Tuning).  
Mod Level  
The Mod level is the amount that the Destination parameter will be  
affected by the Mod Source. Use Quad Knob [3] to affect the Destination  
parameter by a positive or negative amount. Example: If the Reverb  
Decay was selected as the Destination with the mod wheel as the Source,  
the mod wheel could be programmed to cause the Reverb to increase the  
decay (positive) or decrease the decay (negative).  
Mix  
Not to be confused with an actual Mix or Mix mode, the Effect’s Mix function is  
where you can mix the various signal levels of all the effects to the Main Left and  
Right outputs of the QuadraSynth Plus. Only effect modules that have access to  
the Main outputs will appear on the Mix page. There is a separate Mix page for  
each of the four effect busses whose effect modules feed the main output. Note  
that the Mix page doesn't control how much the individual effect modules feed  
to each other; only how much they feed to the Main outputs.  
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Depending on the selected Configuration, the order of the effects will differ (for  
example: in Configuration #1, the order reads Pitch, Delay, Reverb; but in  
Configuration #2, the order is Delay, Pitch, Reverb).  
Pitch Level  
Adjusting this value will cause the Pitch Output Level to increase or  
decrease. The Pitch Output level is the level for the Pitch Section of the  
QuadraSynth Plus’s effects processor to the Main outputs, and should be  
set as desired. Even if this parameter is set to 00, the output of the Pitch  
section is still available (depending on the bus and configuration) to  
following Delay and Reverb sections.  
Delay Level  
Adjusting this value will cause the Delay Output Level to increase or  
decrease. The Delay Output level is the level for the Delay Section of the  
QuadraSynth Plus’s effects processor to the Main outputs, and should be  
set as desired. Even if this parameter is set to 00, the output of the Delay  
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section is still available (depending on the bus and configuration) to  
following Pitch and Reverb sections.  
Reverb Level  
Adjusting this value will cause the Reverb Output Level to increase or  
decrease. The Reverb Output level is the level for the Reverb Section of  
the QuadraSynth Plus’s effects processor to the main outputs, and  
should be set as desired.  
Misc.  
This Misc. Function is only available when using Configuration #s 4 or 5. In  
Configuration 4, the Misc. Function is where the EQ parameters are found. In  
Configuration #5, the Misc. function houses both the Overdrive parameters and  
the EQ parameters (the EQ is found on Page 3). In all cases, the Misc. Function  
can be selected and its parameters edited regardless of which Effects Send (1–4)  
is selected.  
EQ  
The shelving EQ is only available in Configuration #s 4 and 5. It  
provides bass and treble boost, and affects the entire Main Output (not  
just the Effects Sends). Four EQ parameters are included: low frequency  
(range: 30Hz to 180Hz), low frequency boost (0dB to 12dB), high  
frequency (3kHz to 10kHz), high frequency boost (0dB to 9dB).  
Lo EQ Frequency  
This allows you to adjust the cutoff frequency of the Lo EQ. It  
can be set between 30Hz and180HZ. If the Lo EQ Gain  
parameter is set above 0dB, all frequencies below and including  
the one selected by the Lo EQ Frequency parameter will be  
affected.  
Lo EQ Gain  
This controls how much boost will be applied to frequencies  
below and including the one selected by the Lo EQ Frequency. It  
can be set between 0dB and +12dB.  
Hi EQ Frequency  
This allows you to adjust the cutoff frequency of the Hi EQ. It  
can be set between 3kHz and 10kHz. If the Hi EQ Gain  
parameter is set above 0dB, all frequencies above and including  
the one selected by the Hi EQ Frequency parameter will be  
affected.  
Hi EQ Gain  
This controls how much boost will be applied to frequencies  
above and including the one selected by the Hi EQ Frequency. It  
can be set between 0dB and +9dB.  
Overdrive  
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The Overdrive effect provides four parameters spread across two editing  
pages. It is only used in Configuration #5.  
Overdrive Type  
This selects one of two Overdrive Types: Soft and Hard. The Soft  
Overdrive has less gain and provides slightly less distortion than  
the Hard Overdrive. Also, there will still be a slight bit of  
distortion when using the Soft setting, if the signal feeding the  
Overdrive effect is below the Overdrive Threshold setting (see  
below). The Hard setting will only provide distortion when the  
signal feeding the Overdrive effect is above the Overdrive  
Threshold setting.  
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Overdrive Threshold  
This sets the level the signal feeding the Overdrive effect must be  
reach before the Overdrive effect will begin distorting. It can be  
set between 00 and 99. If this number is very low, the Overdrive  
effect will start to distort almost right away. When set to a high  
number, the distortion will not occur until the signal feeding the  
overdrive becomes louder than the Threshold setting.  
Overdrive Brightness  
This sets the tone of the Overdrive effect. It can be set between 00  
and 99. Higher numbers result in a brighter sounding overdrive.  
Lower numbers result in a duller distortion sound.  
Overdrive Balance  
This controls the output mix of the Overdrive effect. It can be set  
anywhere from “CLEAN<99” to “CLEAN<00>OVRD” to  
“99>OVRD”. When set to “CLEAN<99”, the Overdrive effect  
cannot be heard at all. When set to “CLEAN<00>OVRD”, you  
have an even mix between the original, uneffected signal and the  
overdriven signal. When set to “99>OVRD”. only the overdriven  
effect is heard.  
Note:: The CLIP indictator is disabled when configuration 5 is  
selected.  
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CHAPTER 8  
GLOBAL SETTINGS  
Global Edit Mode is where you will find several parameters which affect the entire  
instrument, such as overall master tuning, display contrast, controller settings, keyboard  
mode, edit mode and the 48 kHz input.  
Editing Global Parameters  
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Press the [GLOBAL] button.  
The display will change to Global Edit Mode, page 1 . The total number of pages (seven)  
is indicated in the lower left corner of the display. The currently selected page number  
will be underlined.  
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There are four parameters available for editing in Global Edit Page 1:  
Quad Knob [1] controls the display contrast.  
Quad Knob [2] enables General MIDI Mode and recalls Mix 00 of Preset  
Bank 4.  
Quad Knob [3] controls the transposition, or pitch, of the keyboard.  
Quad Knob [4] controls the instrument’s overall master tuning.  
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Use the PAGE [¨ ] and [Æ] buttons to scroll through the 7 pages of  
Global Mode.  
The following sections describe in detail each of the parameters found in the  
seven Global Edit Mode pages.  
LCD Contrast  
In Page 1 of Global Edit Mode, Quad Knob [1] adjusts the LCD Display Contrast  
(00 to 121). Whenever the [GLOBAL] button is pressed, the display will always  
revert to Page 1 with the Display Contrast parameter selected. This is so that if  
the display contrast is set too high or too low and is unreadable, you can easily  
adjust it even if you can’t see what you’re doing.  
General MIDI Mode  
In Page 1 of Global Edit Mode, selecting Quad Button [2] and pressing VALUE  
[` ] enables General MIDI Mode. This will immediately take you out of Global  
Edit Mode and into Mix Mode, automatically selecting Mix 00 of Preset Bank 4.  
For more information about General MIDI, refer to the MIDI Supplement in  
Appendix B.  
Enabling General MIDI Mode via MIDI  
The QuadraSynth will respond to a universal MIDI Sysex message to  
turn General MIDI mode on or off. Some (but not all) General MIDI  
sequences will have a Sysex message at the beginning (bar 1) which tells  
the receiving device to go into its General MIDI mode. If this message is  
sent, no matter where you happen to be on the QuadraSynth, General  
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MIDI mode will be enabled, and Mix 00 of Preset Bank 4 will  
automatically be selected.  
Master Pitch and Master Tuning  
In Page 1 of Global Edit Mode, Quad Knob [3] adjusts the QuadraSynth Plus’s  
overall pitch (-12 to +12/up or down an octave). Adjust this parameter when you  
wish to globally transpose all sounds. Quad Knob [4] adjusts the QuadraSynth  
Plus’s overall Master Tuning (-99 to +99/up or down 1/2 step). Adjust this  
parameter when tuning the QuadraSynth Plus to other instruments. These  
parameters have no effect on drum sounds, the Range settings, or MIDI Out.  
Keyboard Sensitivity  
In Page 2 of Global Edit mode, Quad Knob [1] adjusts how sensitive the  
keyboard’s velocity will be (00 to 99). When set to 0, the keyboard will not  
transmit any velocity, no matter how hard or soft the keys are played; all notes  
will be treated as having a velocity of 64 (right in the middle). When set to 99, the  
keyboard will have maximum sensitivity, allowing the greatest difference  
between soft and loud notes in terms of velocity control. Adjust this value to  
create the ideal sensitivity for your playing style. By lowering this value from 99,  
you limit how loud and soft notes may be played.  
Keyboard Curve  
In Page 2 of Global Edit mode, Quad Knob [2] selects the Keyboard Velocity  
Curve. There are three options: Weighted, Plastic and Maximum. When set to  
weighted, the keyboard will have the velocity response of a weighted keyboard.  
This means you will really have to play hard to get the loudest notes. When set to  
plastic, the keyboard will have the velocity response of a typical plastic  
keyboard. Plastic is not as sensitive as Weighted, therefore playing soft will not  
result in the same soft notes as Weighted mode produces. When set to  
Maximum, no velocity response is available, and all notes are given a maximum  
velocity value of 127. This parameter only affects the keyboard’s output to the  
sounds in the QuadraSynth Plus and MIDI Out. This is different from the  
Velocity Curve parameter in Program Edit, which determines how a sound will  
respond to incoming velocity information, either from the keyboard or from  
MIDI In.  
Keyboard Transpose  
In Page 2 of Global Edit mode, Quad Knob [3] controls Keyboard Transposition  
(-12 to +12/up or down 1 octave). This determines the note number that the  
keyboard will transmit to the QuadraSynth Plus’s sounds and to MIDI Out. If  
you are using a MIDI sequencer, use this function when you wish to record notes  
outside of the keyboard’s normal note range (note numbers 28 – 103). When set  
to -12, the keyboard range is note numbers 16 – 91. Likewise, if set to +12, the  
range would be 40 – 115.  
Keyboard Mode  
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In Page 2 of Global Edit mode, Quad Knob [4] selects the Keyboard Mode  
(NORMAL, CH SOLO, OUT 1 – OUT 16). This determines how the keyboard will  
function. When in Mix Mode, you have the option to transmit on several MIDI  
channels at once, or to temporarily isolate certain channels within a Mix.  
NORMAL. In Program Mode, the keyboard will transmit on the selected MIDI  
channel. In Mix Mode, the MIDI channels the keyboard transmits on will  
correspond to whatever layers or splits the Mix is set up for. Note that certain  
controllers such as pitch bend and aftertouch may transmit on a different set of  
channels, since they are enabled or disabled independently for each channel of  
the Mix The MIDI Monitor indicators in the display will show which channels  
are active.  
CH SOLO. In Program Mode, this is the same as the NORMAL setting. In Mix  
Mode, the only sounds coming from the QuadraSynth Plus, and the only MIDI  
messages, will come from the layer or range of the underlined MIDI channel in  
the display. This allows you to isolate individual channels in a Mix. So, if you  
play in a range of the keyboard that is active on MIDI CH 1, and 1 is underlined,  
you'll hear it. All other ranges or layers will not respond to the keyboard (they  
will respond to incoming MIDI messages on their respective channels). Use the  
MIDI [¨ ] and [Æ] buttons to hear each channel in turn.  
OUT 1 – OUT 16. In both Program Mode and Mix Mode, the keyboard will  
transmit on a specific MIDI channel (determined by the number setting of this  
parameter), but it will not play the internal sound(s). Use this mode if you're  
using a MIDI sequencer with an “Echo” feature (also known as “MIDI Thru”);  
the sound will be activated by messages appearing at the MIDI IN connector  
after it’s made the “round trip” through the sequencer. This is the QuadraSynth  
Plus’s equivalent to LOCAL OFF.  
Controllers A – D Assignment  
The QuadraSynth Plus allows you to assign up to four general purpose MIDI  
controllers. These MIDI controllers are assigned a letter, A–D. In Page 3 of Global  
Edit mode, you can choose which MIDI controllers (0 to 120) to assign as  
Controllers A, B, C and D. For a listing of all MIDI controllers and their  
designations, see page 123 in the MIDI Supplement towards the end of this  
manual.  
Reset Controllers A – D  
Found on Global Edit Page 4, the “A–D Reset” function (On/Off) determines  
whether the values for Controllers A–D will be reset to zero when a new  
Program or Mix is recalled. Use Quad Knob [2] to turn this on or off. This  
parameter works along with the A-D Mode parameter (described below) to  
choose how the keyboard is being used as a controller. If the A-D Controllers are  
being used to modulate the volume, etc., of external MIDI sound modules, you  
will probably want the A-D Reset parameter turned “OFF” so that the modules’  
volumes will not be reset to zero every time a new Mix or Program is selected. If  
you are using the A-D Controllers only for modulating parameters in the  
QuadraSynth Plus, you will probably want this parameter turned “ON” so that  
new Programs or Mixes are recalled with their stored settings.  
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Example: If you adjusted Controller A (using Quad Knob [1]) to, say, a value of 25  
and then you recalled a different Program, the value of Controller A would  
remain at 25 if the “A–D Reset” function was turned off. Alternatively, the  
Controller A value would reset to 0 if this function was turned on.  
Controllers A – D Mode  
The “A–D Mode” function (Local, MIDI, or Both) determines whether the  
Controllers A–D will have an affect on the currently selected Program or Mix, or  
will only send out controller data via the MIDI Out connector, or do both. Use  
Quad Knob [4] to turn this on or off.  
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Remember, whenever one of the Controllers A–D is used in the currently  
selected Program, a pair of arrows will appear on either side of that Controllers  
name in the display while in either Program Play Mode or Mix Play Mode. This  
indicates that turning that Controller’s associated Quad Knob will have some  
affect on the Program or Mix. If the “A–D Mode” function is set to MIDI, turning  
the Quad Knobs will have no affect on the currently selected Program or Mix;  
however, this will cause controller data to be sent out the MIDI Out connector.  
Example: If Controller A is defined as MIDI controller #11 (which is the default),  
and the “A–D Mode” is set to MIDI, turning Quad Knob [1] will send out  
controller 11 data but will have no effect on the currently selected Program or  
Mix (even if arrows appear on either side of the letter “A” in the display).  
Although the Program or Mix may use Controller A to modify it in some way,  
Controller A is temporarily “disconnected” from the Program or Mix until the  
“A–D Mode” function is set to Local or Both.  
Pedal 1 and 2 Assignment  
Like the MIDI Controllers A—D, the two footpedal controls (Pedal 1 and Pedal 2)  
can be assigned to a MIDI controller. In Page 5 of Global Edit mode, you can  
assign which MIDI controllers (0 to 120) that Pedal 1 and Pedal 2 will be  
transmitted as over MIDI Out. Simultaneously, if the same MIDI controller is  
received it will control any modulations that use either Pedal 1 or Pedal 2. Quad  
Knob [1] selects the controller for Pedal 1, while Quad Knob [3] selects the  
controller for Pedal 2.  
J
When recording into a MIDI sequencer, be careful not to accidentally assign either Pedal  
1 or Pedal 2 to a controller which may already be used by another control (like MIDI  
Volume/controller 7, or Mod Wheel/controller 1).  
Using Pedals to Control Volume or Modulation  
If either Pedal 1 or Pedal 2 is assigned to Controller 7 (Global Edit Mode,  
Page 4), then they will automatically control the volume of:  
any Sounds in a Program, and;  
in Mix Mode, any Sounds that are controlled by the Keyboard  
(Mix Edit Mode, Range, Page 2) and have Pedals turned on (Mix Edit  
Mode, Range, Page 3).  
Likewise, if either Pedal is assigned to Controller 1, then they will  
automatically function like the Modulation Wheel for any Sound in  
Program Play Mode, and in Mix Play Mode, Sounds that are controlled  
by the Keyboard and have Pedals turned on. This is in addition to the  
fact that the pedals will be sending out MIDI information. The default  
settings are: Pedal 1 = 7; Pedal 2 = 4.  
MIDI Program Select  
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In Page 6 of Global Edit mode, Quad Knob [1] determines the MIDI Program  
Select mode (Off, On, Mix Select Channel 1 –16). When this is set to “Off”, the  
QuadraSynth Plus will not respond to incoming MIDI Program Change  
messages, nor will it transmit Program Changes.  
When set to “On”, the QuadraSynth Plus will respond to incoming Program  
Change messages. Likewise, when a Program or Mix is recalled from the front  
panel, its respective program change message will be sent out. However, the  
QuadraSynth Plus will respond differently to incoming Program Change  
messages depending on whether Program Mode or Mix Mode is selected.  
In Program Mode, the MIDI [¨ ] and [Æ] buttons determine on which MIDI  
channel the QuadraSynth Plus will receive MIDI Program Change messages (as  
well as other messages, like notes, controllers, etc.). The Program recalled will be  
the same number as the MIDI Program Change message that is received, from  
whichever bank (Preset or User) is currently selected. When a Program is  
recalled from the front panel, the QuadraSynth Plus will transmit the equivalent  
Program Change message on this same MIDI channel.  
In Mix Mode, when MIDI Program select is on, Program Changes received on  
any of the 16 MIDI channels will be received by the same numbered MIDI  
channels in the current Mix. The Mix itself will not respond to Program Changes.  
When set to “Mix Select Channel 1 – 16”, the QuadraSynth Plus will change  
Mixes in response to Program Change messages received on the same MIDI  
channel as selected by this parameter, from whichever bank (Preset or User) is  
currently selected. Program Change messages received on any other channel  
(other than the one selected by this parameter) will change the individual  
Programs in the Mix on the same channels the messages are received on.  
Note: When General MIDI Mode is enabled (see page 115), Channel 10 of the  
selected Mix will be used exclusively for drums. If a program change is received  
on Channel 10, a new drum kit will be recalled. These drum kits are used  
exclusively in General MIDI mode, and adhere to the General MIDI specification.  
Receiving and Transmitting Bank Change Message  
The QuadraSynth Plus will respond to MIDI Bank Select messages. Bank  
Select messages are transmitted via MIDI Controller 0. The value of  
Controller 0 determines which bank (User, Preset 1–4, Card 1–8) is to be  
recalled. Example: If a Bank Select (controller 0) message of 0 is received,  
it will cause the User Bank to be recalled. If a Bank Select (message of 1 is  
received, Preset Bank 1 will be recalled. Additionally, if a Sound Card is  
inserted, the Card Banks can be selected using Controller 0 values  
between 5 and 13. Values higher than 13 are “wrapped around” and will  
recall the same Banks. Example: A Controller 0 message with a value of  
39 will recall the User Bank.  
Note: Bank change messages will be ignored if General MIDI Mode is  
enabled, so that only Programs within the General MIDI Bank (Preset 4)  
can be recalled via MIDI Program changes.  
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If the MIDI Program Select parameter is turned “On” and a new Bank is  
selected using the BANK [¨ ] and [Æ] buttons, a Bank Change message  
(followed by the appropriate Program Change message) will be  
transmitted out the MIDI Out connector.  
If, additionally, a new Bank is selected in Mix Play Mode and any  
Channel’s MIDI Out parameter (Mix Edit Mode, Range Function, Page 2,  
Quad Knob [3]) is turned “On”, a Bank Select message (followed by the  
appropriate Program Change) will be transmitted out the MIDI Out  
connector for each of those MIDI Channels.  
Edit Mode  
The Quad Knobs have two editing modes: Immediate and Pass-thru. When using  
the Quad Knobs to adjust parameter values, you may prefer one mode over the  
other.  
In Page 6 of Global Edit mode, Quad Knob [3] determines the Edit Mode of the  
four Quad Knobs. When set to Immediate, parameter values jump immediately  
to the Quad Knob’s exact position the moment it is moved. When set to Pass-  
thru, the Quad Knob must be turned beyond the parameter’s current setting  
before it becomes “live” and begins adjusting the parameter’s value.  
48 KHz Clock Input  
In Page 7 of Global Edit mode, Quad Knob [1] turns the 48 kHz Clock Input on  
and off. When turned off, the QuadraSynth Plus uses its own internal sample  
clock as a reference for playing back the sampled sounds that make up a  
Program or Mix. However, if you are recording the QuadraSynth Plus to ADAT  
using the Digital Out fiber optic cable and also have a BRC Master Remote  
Controller, the QuadraSynth Plus must receive a 48 kHz clock signal from the  
BRC in order to maintain perfect sync with the ADAT system. This requires that  
you connect a BNC-to-BNC cable between the BRC’s 48 kHz Clock Out to the  
QuadraSynth Plus’s 48 kHz Clock In. When you are ready to record onto ADAT  
from the QuadraSynth Plus, be sure to turn on the 48 kHz Clock Input function.  
For more on connecting the BNC-to-BNC cable, see page 25.  
QuadraSynth Plus Piano Reference Manual  
171  
MIDI Transfer and Storage Operations: Chapter 9  
CHAPTER 9  
MIDI TRANSFER AND  
STORAGE OPERATIONS  
Saving the User Bank to an External Card  
The entire contents of the QuadraSynth Plus’s User memory (100 Mixes, 128  
Programs, 128 Effects Patches) can be stored to an Alesis QuadraCard RAM card  
inserted into the Sound Card slot on the QuadraSynth Plus. Depending on the  
amount of RAM a particular card has, up to 8 complete banks can be stored onto  
it. The QuadraCard is a type of PCMCIA SRAM or FlashRAM card; it has 256K  
of memory and will store 4 complete banks. A 512K PCMCIA card can store 8  
banks. When saving data to a card that contains a ROM (READ-ONLY) bank, it  
will be in bank 1; this means you cannot save anything into bank 1.  
¿
Insert a card into the Sound Card slot on the back of the QuadraSynth  
Plus.  
¡
¬
Press [STORE].  
Use either PAGE [¨ ] or [Æ] to select Page 6 of the Store function.  
This selects the “SAVE TO CARD” option.  
Use Quad Knob [1] to select a bank location on the card to store to (1–8).  
If the card contains a ROM bank, it will be bank 1. Therefore, you will only be able to  
save into bank locations 2–8.  
ƒ
Press [STORE] to transfer the data from the QuadraSynth Plus onto the  
card.  
If the display reads "CARD IS WRITE PROTECTED", switch the write-protect  
switch on the card to off and repeat the procedure.  
Loading a Bank from an External Card  
¿
¡
¬
Insert the card into the card slot on the back panel.  
Press [STORE].  
Use either PAGE [¨ ] or [Æ] to select Page 7 of the Store function.  
This selects the “LOAD FROM CARD” option.  
Use Quad Knob [1] to select the bank on the card you wish to load (1–8).  
ƒ
Press [STORE] to transfer the data from the card into the QuadraSynth  
Plus.  
QuadraSynth Plus Piano Reference Manual  
172  
MIDI Transfer and Storage Operations: Chapter 9  
Storing an Individual Program or Mix to an  
External Card  
You also have the option of storing a Mix or Program directly to a specific  
location in a RAM Sound Card Bank (instead of transferring the entire Bank) and  
vice versa. However, the Sound Card you are storing to must be of the current  
QuadraSynth Plus Bank format. A Sound Card is formatted whenever an entire  
QuadraSynth Plus Bank is stored onto it. If you are using an older Sound Card  
that does not use the current Bank format, you will not be able to store individual  
Mixes or Programs onto until you store an entire QuadraSynth Bank onto it first.  
¿
Insert a card into the Sound Card slot on the back of the QuadraSynth  
Plus.  
¡
¬
Select the Program or Mix you wish to transfer to the card.  
Press [STORE].  
Use Quad Knob [1] to select a bank location on the card to store to (1–8).  
If the card contains a ROM bank, it will be bank 1. Therefore, you will only be able to  
save into bank locations 2–8.  
ƒ
Use Quad Knob [2] to select a location in the selected card Bank to save  
to (00–127 if storing a Program; 00–99 if storing a Mix).  
H
Press [STORE] to transfer the data from the QuadraSynth Plus onto the  
card.  
If the card is write-protected, or not inserted, or not of the current Bank format,  
the display will indicate the situation with an error message. If the card is not of  
the current Bank format, use the “Save To Card” command first (Store Mode,  
Page 5) to save the entire User Bank to the card. This however will erase all  
Programs and Mixes in the selected card Bank. If these are important to you, first  
load them into the User Bank in the QuadraSynth, and then save them back onto  
the card in order to re-format the card using the new format.  
Loading an Individual Program or Mix from an  
External Card  
You can load a single Mix or Program from a Sound Card into the User Bank,  
instead of having to load the entire Bank from the Sound Card. To do this, select  
the Mix or Program in the Sound Card Bank that you wish to copy, then use the  
Store Function (as described above) to designate a location you wish to store to  
in the User Bank.  
Note: When storing a Mix from a Sound Card into the User Bank, the individual  
Programs used by the Mix will not be moved into the User Program Bank. Once  
you store a Mix from a Sound Card into the User Bank, it will still look for its  
Programs in the Sound Card Bank, if that is where it was programmed to look  
for them in the first place (which is almost always the case).  
QuadraSynth Plus Piano Reference Manual  
173  
MIDI Transfer and Storage Operations: Chapter 9  
Card Storage RAMifications  
Whenever you transfer an internal Bank to a RAM card, the result is that  
all Mixes in the transferred Bank are changed so that they now access the  
Programs on the card bank to which the User bank was saved (since they  
reside there, now), instead of the Programs from the original internal  
Bank. And, when a Card Bank is transferred to an internal Bank location,  
the opposite happens – all Programs within a Mix which had previously  
accessed card bank 1 (the ROM card) now point to the User bank.  
However, a problem can arise when you have one or more Mixes in the  
Bank you are transferring which use Programs already on the Card.  
Example: Let's say Mix 00 in the User Bank uses a Program that’s located  
in Card Bank 1. If the User Bank is transferred to the Card Bank 1, the  
result will be that Mix 00 in Card Bank 1 now uses only Programs from  
Card Bank 1. If later you transfer the entire Bank back into the  
QuadraSynth Plus, you will find that Mix 00 no longer uses the Program  
on the Card as it was originally programmed to.  
Here’s a few ways to avoid this problem. First, always transfer to a Card  
Bank that does not include any Programs used by the Mixes in the Bank  
you are transferring from. In other words, if we transferred the Bank into  
Card Bank 2, we would not have a problem, since the Mix would still be  
using the Program in Card Bank 1. When this Bank is transferred back to  
the QuadraSynth, the Mix will still use the Program in Card Bank 1.  
Another way to avoid this problem is to transfer the Bank to a Card  
Bank, and then immediately store the individual Mix onto the Card by  
itself. When a Mix is stored individually to a Card, it is not modified in  
any way ; i.e. if it used Programs in the internal Banks, it will still use  
them even though the Mix and its Programs are in two different  
locations (the Mix is on the Card but the Programs it uses are stored in  
the internal Banks).  
Finally, you could avoid this situation by always making sure your  
Mixes use only Programs located in the same Bank it is stored in. This  
could mean individually storing some Programs from a RAM Card into  
one of the internal Banks. Although this is very limiting, it makes things  
much simpler in the long run.  
Saving Programs via MIDI Sys Ex  
As an alternative to storing data to a card, the QuadraSynth Plus lets you  
transmit internal data via MIDI System Exclusive messages. This data can be sent  
to a storage device, or recorded into a MIDI sequencer, or sent to another  
QuadraSynth Plus or S4. You have a choice of sending any single Program in the  
User bank (00 to 127), or what is in the current Program Edit buffer, or what is in  
any of the 16 Mix Edit Program buffers, or the entire User bank (100 Mixes, 128  
Programs, 128 Effects Patches) plus Global data. In the case of sending data to  
another QuadraSynth Plus, you can send any individual Program to the same  
location or any other location in the receiving QuadraSynth Plus, including any  
of its 17 Program Edit buffers.  
QuadraSynth Plus Piano Reference Manual  
174  
MIDI Transfer and Storage Operations: Chapter 9  
To send the entire User bank via MIDI:  
Connect a MIDI cable from the QuadraSynth Plus’s MIDI Out to the  
¿
MIDI In of a device capable of receiving the data (S4, another QuadraSynth Plus,  
etc.).  
¡
¬
Press [STORE].  
Use either PAGE [¨ ] or [Æ] to select Page 3 of the Store function.  
Turn Quad Knob [1] to the right until the upper right display reads  
“SEND_ALL TO MIDI.”  
ƒ
Press [STORE] to transmit the data out the MIDI Out connector.  
To send a single Program via MIDI:  
¿
Follow steps ¿ through ¬ in the instructions above.  
¡
Use Quad Knob [1] to select a Program. You may select any Program in  
the User bank (0 to 127) or the Program Edit buffer (EDIT) or any of the 16 Mix  
Edit buffers (EDm01 to EDm16).  
As this value is changed, the second parameter (destination) will be linked. This is  
because most often you will want to transmit a Program to the same Program location.  
The only time to do otherwise is when sending to another QuadraSynth Plus (see below).  
¬
Press [STORE] to transmit the data out the MIDI Out connector.  
To send a single Program via MIDI to a different Program number:  
¿
¡
Follow steps ¿ through ¬ in the instructions above.  
Use Quad Knob [1] to select a Program. You may select any Program in  
the User bank (0 to 127) or the Program Edit buffer (EDIT) or any of the 16 Mix  
Edit buffers (EDm01 to EDm16).  
As this value is changed, the second parameter (destination) will be linked.  
¬
Use Quad Knob [2] to select a Program number to send the selected  
Program to.  
If this value is turned all the way up, the “SEND ALL TO MIDI” option will be selected  
and the first value will jump all the way up. At this point you will not be able to adjust  
the destination value with Quad Knob [2] until you use Quad Knob [1] to re-select the  
Program to be transmitted.  
Press [STORE] to transmit the data out the MIDI Out connector.  
The procedure is similar for sending Mixes. Page 4 of the Store function allows  
you to send any one of the Mixes.  
Similarly, if a Mix is stored, you may want to store each of the Programs used in  
the Mix. The “SEND ALL TO MIDI” command in the Program Store function is  
an easy shortcut to this.  
QuadraSynth Plus Piano Reference Manual  
175  
Troubleshooting: Appendix A  
APPENDIX A  
TROUBLE-SHOOTING  
Trouble-Shooting Index  
If you are experience problems while operating the QuadraSynth Plus, please use  
the following table to locate possible causes and solutions before contacting  
Alesis customer service for assistance.  
Symptom  
Cause  
Solution  
Check that the power cable  
is plugged in properly.  
The display does not light No power.  
when the ON/OFF switch  
is turned on.  
Display is blank.  
Display contrast is set  
either too high or low.  
Bad connections.  
Adjust the display contrast.  
(Global, p.1, Quad Knob 1).  
Check your audio cables; if  
necessary, swap cables.  
No sound.  
Volume is turned down. Turn [VOLUME] knob up.  
Keyboard Mode is set  
incorrectly.  
Bad connections.  
Set the Keyboard Mode to  
“NORMAL” (Global, p. 2).  
Check MIDI cables.  
No MIDI input in Mix  
mode (cannot control  
through MIDI).  
One or more channels’  
MIDI IN switch is off.  
Make sure the MIDI IN  
parameter is turned on for  
the channel(s) you wish to  
control via MIDI.  
Keyboard Mode is set  
incorrectly.  
Make sure the Keyboard  
Mode (Global p. 2) is set to  
“NORMAL”.  
Notes sustain  
continuously.  
Sustain pedal was  
plugged in after power  
was turned on.  
Turn off power and turn  
on again.  
Re-initializing  
If your unit behaves erratically or “freezes”, the first step is to power down the  
unit. and power it back up again. Disconnect any cables connected to the MIDI  
IN jack, and make sure that a sequencer or keyboard is not sending messages to  
the QuadraSynth Plus that would make it behave erratically (such as a long  
stream of pitch bend messages on 16 channels simultaneously). If these steps do  
not solve the problem, you must re-initialize the software. Make sure your mod  
wheel is all the way down before re-initializing, otherwise the “zero” position of  
the mod wheel will be incorrect. To re-initialize the QuadraSynth Plus, hold  
down both Quad Buttons [1] and [4] while turning on the power. This will reset  
all Global parameters to their default settings, and will initialize all edit buffers  
so that all Mix, Program and Effects parameters are reset to their default settings.  
However, none of the Programs, Mixes, or Effects are changed when re-  
initializing the unit.  
QuadraSynth Plus Piano Reference Manual  
176  
Troubleshooting: Appendix A  
Checking Software Version  
The current software version may be determined by holding [GLOBAL] and  
pressing [PROGRAM]. The QuadraSynth Plus will indicate the current software  
version installed in the upper right display.  
Maintenance/Service  
Cleaning  
Disconnect the AC cord, then use a damp cloth to clean the keyboard’s  
metal and plastic surfaces. For heavy dirt, use a non-abrasive household  
cleaner such as Formula 409 or Fantastik. DO NOT SPRAY THE  
CLEANER DIRECTLY ONTO THE FRONT OF THE UNIT AS IT MAY  
DESTROY THE LUBRICANTS USED IN THE SWITCHES AND  
CONTROLS! Spray onto a cloth, then use the cloth to clean the unit.  
Maintenance  
Here are some tips for preventive maintenance.  
Periodically check the AC cord for signs of fraying or damage.  
Make sure the entire bottom part of the keyboard is supported  
so that the case is not subjected to unnecessary bending.  
Place a dust cover over the QuadraSynth Plus when it is not in  
use.  
Refer All Servicing to Alesis  
We believe that the QuadraSynth Plus is one of the most reliable  
keyboards that can be made using current technology, and should  
provide years of trouble-free use. However, should problems occur, DO  
NOT attempt to service the unit yourself. The full AC line voltage, as  
well as high voltage/high current DC voltages, are present at several  
points within the chassis. Service on this product should be performed  
only by qualified technicians. THERE ARE NO USER-SERVICEABLE  
PARTS INSIDE.  
Obtaining Repair Service  
Before contacting Alesis, check over all your connections, and make sure  
you’ve read the manual.  
Customers in the USA:  
If the problem persists, call Alesis USA at 1-800-5ALESIS (525-3747) and  
request the Product Support department. Talk the problem over with  
one of our technicians; if necessary, you will be given a repair order (RO)  
number and instructions on how to return the unit. All units must be  
shipped prepaid and COD shipments will not be accepted.  
For prompt service, indicate the RO number on the shipping label. If you  
do not have the original packing, ship the XT in a sturdy carton, with  
QuadraSynth Plus Piano Reference Manual  
177  
Troubleshooting: Appendix A  
shock-absorbing materials such as styrofoam pellets (the kind without  
CFCs, please) or “bubble-pack” surrounding the unit. Shipping damage  
caused by inadequate packing is not covered by the Alesis warranty.  
Tape a note to the top of the unit describing the problem, include your  
name and a phone number where Alesis can contact you if necessary, as  
well as instructions on where you want the product returned. Alesis will  
pay for standard one-way shipping back to you on any repair covered  
under the terms of this warranty. Next day service is available for a  
surcharge.  
Field repairs are not normally authorized during the warranty period,  
and repair attempts by unqualified personnel may invalidate the  
warranty.  
Service address for customers in the USA:  
Alesis Product Support  
12520 Wilkie  
Hawthorne, CA 90250  
Customers outside the USA:  
Contact your local Alesis dealer for warranty assistance. The Alesis  
Limited Warranty applies only to products sold to users in the USA and  
Canada. Customers outside the USA and Canada are not convered by  
this Limited Warranty and may or may not be covered by independent  
distributor warranty in the county of sale. Do not return products to the  
factory unless you have been given specific instructions to do so.  
QuadraSynth Plus Piano Reference Manual  
178  
Troubleshooting: Appendix A  
QuadraSynth Plus Piano Reference Manual  
179  
MIDI Supplement: Appendix B  
APPENDIX B  
MIDI SUPPLEMENT  
MIDI Basics  
Most current electronic instruments and signal processors, including the  
QuadraSynth Plus, contain an internal computer. Computers and music have  
been working together for decades, which is not surprising considering music’s  
mathematical basis (consider frequencies, harmonics, vibrato rates, tunings, etc.).  
In the mid-70s, microcomputers became inexpensive enough to be built into  
consumer-priced musical instruments. They were used for everything from  
sound generation to storing parameters in memory for later recall.  
In 1983, the MIDI (Musical Instrument Digital Interface) specification was  
introduced to better exploit the computers inside these new musical instruments,  
primarily to ensure compatibility of equipment between manufacturers. MIDI  
expresses musical events (notes played, vibrato, dynamics, tempo, etc.) as a  
common “language” consisting of standardized digital data. This data can be  
understood by MIDI-compatible computers and computer-based musical  
instruments.  
Before electronics, music was expressed exclusively as written symbols. By  
translating musical parameters into digital data, MIDI can express not only the  
types of musical events written into sheet music, but other parameters as well  
(such as amount of pitch bend or degree of vibrato).  
MIDI Hardware  
MIDI-compatible devices usually include both MIDI In and MIDI Out jacks,  
which terminate in 5-pin DIN-style connectors. The MIDI Out jack transmits  
MIDI data to another MIDI device. As you play a MIDI controller such as a  
keyboard, data corresponding to what you play exits the MIDI Out jack.  
Example: If you play middle C, the MIDI Out transmits a piece of data that says  
“middle C is down.” If you release that key, the MIDI Out transmits another  
piece of data that says “middle C has been released.”  
If the keyboard responds to the dynamics of your playing, the note data will  
include dynamics information too. Moving the modulation wheels and pedals  
attached to many synthesizers will also generate data associated with the wheel  
or pedal being used.  
The MIDI In jack receives data from another MIDI device. In addition to the type  
of performance data described above, rhythmically-oriented MIDI devices (e.g.,  
drum machines) can often transmit and/or receive additional MIDI timing  
messages that keep other rhythmically-oriented units in a system synchronized  
with each other.  
An optional MIDI Thru jack provides a duplicate of the signal at the MIDI In  
jack. This is handy if you want to route MIDI data appearing at one device to  
another device as well.  
QuadraSynth Plus Piano Reference Manual  
181  
MIDI Supplement: Appendix B  
MIDI Message Basics  
The are two main types of MIDI messages. Channel messages, which are  
channel-specific, consist of Voice and Mode messages. System messages, which  
do not have a channel number and are received by all units in a system, include  
Common, Real Time, and Exclusive messages.  
Channel Messages: Mode Messages  
There are two messages that determine the MIDI mode (i.e., how a  
device will receive MIDI data). The “Omni” message determines how  
many channels will be recognized. Omni On means that data from all  
channels will be received; Omni Off limits the number of channels,  
usually to one.  
The “Mono/Poly” message deals with voice assignment within the  
synthesizer. In Mono mode, only one note at a time plays in response to  
voice messages; in Poly mode, as many voices can play notes as are  
available to play notes.  
Channel Messages: Voice Messages  
A synthesizer’s voice is the most basic unit of sound generation. Usually,  
each voice plays one note at a time, so the number of notes you can play  
at one time will be limited by the available number of voices. MIDI  
messages that affect voices include:  
Note On. Corresponds to a key being pressed down; values range from  
000 (lowest note) to 127 (highest note). Middle C is 60.  
Note Off. Corresponds to a key being released; values are the same as  
note on.  
Velocity. Corresponds to dynamics; values range from 001 (minimum  
velocity) to 127 (maximum velocity). A velocity of 000 is equivalent to a  
note-off message.  
Pressure. Indicates the pressure applied to a keyboard after pressing a  
key. Mono pressure (Aftertouch) represents the average amount of  
pressure applied by all keys. Poly Pressure produces individual pressure  
messages for each key.  
Program Change. Sending a Program Change command from a  
sequencer or other MIDI keyboard can change synth patches  
automatically. There are 128 Program Change command numbers.  
Also note that not all units number programs consistently. Some number  
them as 000-127, others as 001-128, and still others arrange programs in  
banks of 8 programs (such as A1-A8, B1-B8, C1-C8, etc.).  
Pitch Bend. This “bends” a note from its standard pitch.  
QuadraSynth Plus Piano Reference Manual  
182  
MIDI Supplement: Appendix B  
Continuous Controller. Footpedals, breath controllers, and modulation  
wheels can vary sounds as you play, thus adding expressiveness. MIDI  
allows for 64 continuous controllers (these act like potentiometers in that  
you can choose one of many different values) and 58 continuous/switch  
(these can act like continuous controllers but some are assumed to  
choose between two possible states, such as on/off).  
Each type of controller is stamped with its own controller identification  
number. Not all controller numbers have been standardized for specific  
functions, but the following indicates the current list of assigned  
controllers. Numbers in parenthesis indicate the controller range.  
#
1
2
3
4
5
6
Function  
Modulation Wheel (0-127)  
Breath Controller (0-127)  
Early DX7 Aftertouch (0-127)  
Foot Controller (0-127)  
Portamento Time (0-127)  
Data Slider (0-127)  
7
8
Main Volume (0-127)  
Balance (0-127)  
10  
11  
16  
17  
18  
19  
Pan (0-127)  
Expression (0-127)  
General Purpose #1 (0-127)  
General Purpose #2 (0-127)  
General Purpose #3 (0-127)  
General Purpose #4 (0-127)  
32-63 Least Significant Bits, Controllers 0-31 (0-127)  
64  
65  
66  
67  
Sustain Pedal (0 or 127)  
Portamento On/Off (0 or 127)  
Sustenuto Pedal (0 or 127)  
Soft Pedal (0 or 127)  
69  
80  
81  
82  
83  
92  
Hold 2 (0 or 127)  
General Purpose #5 (0 or 127)  
General Purpose #6 (0 or 127)  
General Purpose #7 (0 or 127)  
General Purpose #8 (0 or 127)  
Tremolo Depth (0-127)  
93  
94  
Chorus Depth (0-127)  
Celeste Depth (0-127)  
95  
96  
97  
98  
Phase Depth (0-127)  
Data Increment (0 or 127)  
Data Decrement (0 or 127)  
Non-Registered Parameter MSB (0-127)  
Non-Registered Parameter LSB (0-127)  
Registered Parameter MSB (0-127)  
Registered Parameter LSB (0-127)  
Reset All Controllers (0)  
Local Control On/Off (0 or 127)  
All Notes Off (0)  
99  
100  
101  
121  
122  
123  
124  
Omni Off (0)  
QuadraSynth Plus Piano Reference Manual  
183  
MIDI Supplement: Appendix B  
125  
126  
127  
Omni On (0)  
Mono On (0-16; 0=Omni Off)  
Poly On (0)  
QuadraSynth Plus Piano Reference Manual  
184  
MIDI Supplement: Appendix B  
System Common Messages  
Intended for all units in a system, some of these MIDI messages are:  
Song Position Pointer. This indicates how many “MIDI beats” (normally  
a 16th note) have elapsed since a piece started (up to 16,384 total beats).  
It is primarily used to allow different sequencers and drum machines to  
auto-locate to each other so that if you start one sequencer, the other  
device will automatically jump to the same place in the song, whereupon  
both continue on together.  
System Exclusive. This message (called Sys Ex for short) is considered  
“exclusive” because different manufacturers send and receive data over  
MIDI which is intended only for that manufacturer’s equipment.  
Example: Sending a QuadraSynth Plus message to an Alesis D4 Drum  
Module won’t do anything, but the message will be understood by other  
QuadraSynth Plus. This data often contains information about individual  
instrument programs.  
Timing Clock. A master tempo source (such as a sequencer) emits 24  
timing messages (clocks) per quarter note. Each device synchronized to  
the sequencer advances by 1/24th of a quarter note when it receives the  
clock message, thus keeping units in sync after they’ve both started at  
the same time. Many devices subdivide this clock signal internally for  
higher resolution (e.g., 96 pulses per quarter note).  
Start. Signals all rhythmically-based units when to start playing.  
Stop. Signals all rhythmically-based units when to stop playing.  
Continue. Unlike a Start command, which re-starts a sequencer or drum  
machine from the beginning of a song each time it occurs, sending a  
continue message after stop will re-start units from where they were  
stopped.  
General MIDI  
General MIDI is an extension of the MIDI standard designed to meet the  
demands of the ever-growing multimedia industry, and to make simple the act  
of playing commercially produced MIDI sequences. The General MIDI standard  
utilizes all 16 channels available in MIDI. The QuadraSynth Plus is a perfect  
General MIDI companion, since its Mix Mode uses 16 channels. Although many  
channels are commonly used for specific types of instruments (Example: Channel  
1 is usually piano, channel 2 is usually bass, etc.), channel 10 is always used for  
drums.  
General MIDI also standardizes the placement of sound types in a sound device’s  
memory bank. The QuadraSynth Plus’ Preset 4 Bank is designed specifically for  
General MIDI, and organizes it sounds according to the General MIDI  
specification. This means, when a sequencer sends a MIDI program change  
message that is supposed to call up a particular sound, the correct sound on the  
QuadraSynth Plus will be called up, even if the composer of the sequence used a  
different sound device. The Programs in Preset Bank 4 use the General MIDI  
QuadraSynth Plus Piano Reference Manual  
185  
MIDI Supplement: Appendix B  
names (in some cases abreviated) with the letters GM added to indicate their are  
designed specifically for use in General MIDI mode.  
QuadraSynth Plus Piano Reference Manual  
186  
MIDI Supplement: Appendix B  
There are three MIDI registered parameters which the QuadraSynth plus will  
recognize in Mix Play Mode when General MIDI Mode is enabled. These are:  
MIDI Registered Parameter 0 (Pitch Bend Sensitivity): This will directly  
effect the Pitch Wheel Range parameter of all four Sounds of the Program on the  
received MIDI Channel of the Mix. If the Channel is selected using the MIDI [¨ ]  
and [Æ] buttons, the word “Edited” will appear next to the Program Number in  
the display if this parameter is received. However, if you are viewing the Pitch  
Wheel Range parameter in the display (Program Edit Mode, Pitch Function, Page  
2, Quad Knob [2]), the display will not be updated to reflect the new setting. If  
you go to another Page or Function and then return to it, the display will now  
reflect the updated setting.  
MIDI Registered Parameter 1 (Fine Tune): This will directly effect the  
Detune Amount parameter of all four Sounds of the Program on the received  
MIDI Channel of the Mix. If this MIDI registered parameter is received, the  
QuadraSynth will automatically make sure that all four Sounds of the Program  
have their Detune Type parameter set to “Normal” (Program Edit Mode, Pitch  
Function, Page 1, Quad Knob [4]). If the Channel is selected using the MIDI [¨ ]  
and [Æ] buttons, the word “Edited” will appear next to the Program Number in  
the display if this parameter is received. However, if you are viewing the Detune  
Amount parameter in the display (Program Edit Mode, Pitch Function, Page 1,  
Quad Knob [3]), the display will not be updated to reflect the new setting. If you  
go to another Page or Function and then return to it, the display will now reflect  
the updated setting.  
MIDI Registered Parameter 2 (Coarse Tune):This will directly effect the  
Tune Semitone parameter of all four Sounds of the Program on the received  
MIDI Channel of the Mix. If the Channel is selected using the MIDI [¨ ] and [Æ]  
buttons, the word “Edited” will appear next to the Program Number in the  
display if this parameter is received. However, if you are viewing the Tune  
Semitone parameter in the display (Program Edit Mode, Pitch Function, Page 1,  
Quad Knob [1]), the display will not be updated to reflect the new setting. If you  
go to another Page or Function and then return to it, the display will now reflect  
the new setting.  
(Parts of this appendix are abridged versions of material from Power Sequencing  
with Master Tracks Pro/Pro 4 and The Complete Guide to the Alesis HR-16 and  
MMT-8, copyright 1990 and 1989 respectively by AMSCO Publications, and is  
adapted with permission.)  
QuadraSynth Plus Piano Reference Manual  
187  
MIDI Implementation Chart  
MIDI IMPLEMENTATION CHART  
Function  
Default  
Transmitted  
Recognized  
Remarks  
Basic  
Channel  
1 — 16  
1 — 16  
Changed  
Default  
Messages  
Altered  
1 — 16 each  
Mode 3  
X
1 — 16 each  
Mode 3  
X
Memorized  
Mode  
* * * * * * * *  
Note  
0 — 127  
0 — 127  
0 — 127  
O
Number  
True Voice  
Note On  
Note Off  
Key’s  
* * * * * * * *  
O
O
Velocity  
O
X
O
O
O
After  
Touch  
Ch’s  
O
O
O
O
Pitch Bender  
Control  
Change  
Prog  
Change  
System Exclusive  
0 — 120  
1
1
O 0 — 127  
O 0 — 127  
0 — 127  
O
True #  
O* * * * * * * *  
X
X
X
X
X
X
System  
Common  
Song Pos  
Song Sel  
Tune  
X
X
X
X
System  
Realtime  
Aux  
Clock  
Commands  
Local On/Off  
All Notes Off  
Active Sense  
Reset  
2
X
X
X
X
X
O
O
X
Messages  
2
O
O
GM On  
Notes  
1
O, X is selectable  
Recognized as ALL NOTES OFF  
2
Mode 1: OMNI ON, POLY  
Mode 1: OMNI ON, MONO  
Mode 3: OMNI OFF, POLY  
Mode 4: OMNI OFF, MONO  
O
X
: Yes  
: No  
QuadraSynth User’s Manual  
188  
Parameters Index: Appendix C  
APPENDIX C:  
PARAMETERS INDEX  
Program Parameters  
Quad  
Page in  
Parameter  
Function  
Amp  
ALFO  
Filter  
Page  
1
2
2
2
2
2
3
2
1
1
2
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
3
2
3
1
1
2
2
2
1
1
1
1
3
Knob  
Manual  
61  
71  
60  
70  
57  
68  
77  
77  
70  
62  
71  
71  
70  
70  
70  
76  
74  
71  
76  
74  
72  
79  
56  
56  
56  
56  
60  
75  
75  
75  
59  
69  
60  
69  
70  
69  
69  
69  
59  
58  
Aftertouch Depth: Amp  
Aftertouch Depth: ALFO  
Aftertouch Depth: Filter  
Aftertouch Depth: FLFO  
Aftertouch Depth: Pitch  
Aftertouch Depth: PLFO  
AENV Level  
2
3
2
3
2
3
3
4
3
3
1
2
2
4
1
1
1
1
2
2
2
1
2
1
1
3
4
3
4
4
1
3
3
1
2
2
4
1
2
4
FLFO  
Pitch  
PLFO  
AENV  
AENV  
ALFO  
Amp  
ALFO  
ALFO  
ALFO  
ALFO  
ALFO  
AENV  
FENV  
PENV  
AENV  
FENV  
PENV  
Misc.  
AENV Trigger  
ALFO Delay  
ALFO Depth  
ALFO Level  
ALFO Mod. Wheel Depth  
ALFO Speed  
ALFO Trigger  
ALFO Waveform  
Attack: Amp  
Attack: Filter  
Attack: Pitch  
Decay: Amp  
Decay: Filter  
Decay: Pitch  
Drum Mode  
Effect Bus  
Effect Level  
Effect Program  
Effect Type  
FENV Depth  
FENV Level  
FENV Trigger  
FENV Velocity Depth  
Filter Frequency  
FLFO Delay  
FLFO Depth  
FLFO Level  
FLFO Mod. Wheel Level  
FLFO Speed  
FLFO Trigger  
Effect-Level  
Effect-Level  
Effect  
Effect  
Filter  
FENV  
FENV  
FENV  
Filter  
FLFO  
Filter  
FLFO  
FLFO  
FLFO  
FLFO  
FLFO Waveform  
Keyboard Tracking  
Keyboard Mode  
FLFO  
Filter  
Pitch  
QuadraSynth Plus Piano Reference Manual  
189  
Parameters Index: Appendix C  
Quad  
Knob  
Page in  
Parameter  
Function  
ALFO  
Filter  
Page  
Manual  
71  
60  
70  
66  
66  
66  
64  
64  
79  
56  
55  
58  
73  
72  
73  
67  
57  
68  
68  
67  
67  
67  
57  
58  
58  
62  
62  
76  
74  
72  
79  
63  
76  
74  
72  
77  
74  
73  
77  
75  
73  
77  
75  
73  
79  
79  
Mod. Wheel Level: ALFO  
Mod. Wheel Level: Filter  
Mod. Wheel Level: FLFO  
Modulation Destination  
Modulation: Gate Mode  
Modulation Level  
Modulation: Quantize Mode  
Modulation Source  
Name (Program)  
Output  
2
2
2
1–6  
1–4  
1–6  
5–6  
1
2
1
2
2
4
3
4
1
1
3
2
4
3
4
4
3
3
1
2
2
4
1
1
1
3
1
2
4
4
4
4
3
FLFO  
Mod  
Mod  
Mod  
Mod  
Mod  
Name  
Level  
Level  
Pitch  
PENV  
PENV  
PENV  
PLFO  
Pitch  
PLFO  
PLFO  
PLFO  
PLFO  
PLFO  
Pitch  
1—10  
1
Pan  
PENV Depth  
PENV Level  
PENV Trigger  
PENV Velocity Depth  
PLFO Delay  
PLFO Depth  
PLFO Level  
PLFO Mod. Wheel Level  
PLFO Speed  
1
2
3
2
3
1
2
2
2
1
1
1
2
3
3
1
1
1
1
1
1
1
1
1
1
2
2
2
3
3
3
3
PLFO Trigger  
PLFO Waveform  
Pitch Wheel Range: Pitch  
Portamento  
Portamento Rate  
Range Lower limit  
Range Upper Limit  
Release: Amp  
Release: Filter  
Release: Pitch  
Sound Enable  
Sound Overlap  
Pitch  
Pitch  
Range  
Range  
AENV  
FENV  
PENV  
Misc.  
Range  
AENV  
FENV  
PENV  
AENV  
FENV  
PENV  
AENV  
FENV  
PENV  
AENV  
FENV  
PENV  
Track  
Track  
Sustain: Amp  
Sustain: Filter  
Sustain: Pitch  
3
3
3
2
2
2
2
2
2
1
1
1
Sustain Decay: Amp  
Sustain Decay: Filter  
Sustain Decay: Pitch  
Sustain Pedal: Amp  
Sustain Pedal: Filter  
Sustain Pedal: Pitch  
Time Track: AENV  
Time Track: FENV  
Time Track: PENV  
Track Input  
3
3
1
1
Track Points (0—10)  
1, 2—3 2—4, 1—4  
QuadraSynth Plus Piano Reference Manual  
190  
Parameters Index: Appendix C  
Tuning: Semitone  
Pitch  
1
1
57  
Quad  
Knob  
Page in  
Manual  
Parameter  
Tuning: Detune  
Tuning: Type  
Function  
Pitch  
Page  
1
1
1
1
1
1
1
3
4
4
1
1
3
1
57  
57  
59  
61  
54  
54  
55  
Pitch  
Filter  
Amp  
Velocity  
Velocity Curve/Crossfade  
Voice Select: Group  
Voice Select: Sound Name  
Volume  
Assign Voice  
Assign Voice  
Level  
Mix Parameters  
Quad  
Page in  
Parameter  
Function  
Range  
Range  
Effect  
Effect  
Range  
Range  
Range  
Name  
Range  
Page  
Knob  
Manual  
Aftertouch  
3
2
4
4
2
4
1
3
1
1
2
1
4
3
2
1
1
3
1
2
3
1
3
43  
Controllers A–D  
Effect Channel  
Effect MIDI  
Keyboard  
MIDI In  
3
1
1
2
2
2
43  
44  
44  
43  
43  
43  
44  
43  
44  
43  
41  
41  
41  
41  
41  
41  
MIDI Out  
Name (Mix)  
1—10  
Pitchbend and Mod Wheels  
Program Effect Bus  
Program Effect Level  
Program Enable  
Program Output  
Program Pan  
Program Volume  
Program Select: Number  
Program Select: Type  
Range Lower limit  
Range Upper Limit  
Sustain Pedal  
3
1
1
1
1
1
1
1
1
1
1
3
1
1
Effect-Level  
Effect-Level  
Program Assign  
Level  
Level  
Level  
Program Assign  
Program Assign  
Range  
42  
42  
43  
42  
Range  
Range  
Pitch  
Pitch  
Tuning: Octave  
Tuning: Semitone  
42  
QuadraSynth Plus Piano Reference Manual  
191  
Parameters Index: Appendix C  
QuadraSynth Plus Piano Reference Manual  
192  

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