Panasonic OnWAN Z340 User Manual

APPENDIX 02/05  
TEST RESULTS FOR ZYDACRON OnWAN Z340  
Manufacturer:  
Model:  
Zydacron  
OnWAN Z340  
3.01.012 with Service Patch  
None  
Software versions:  
Model modifications  
Add-ons, etc.  
Date of Test:  
4th – 8th November 2002  
OnWan Z340 Card, Audiovisual Breakout Cable and Camera  
CONTENTS  
Page No.  
A: SETUP PROCEDURE  
...........................................................1  
B: HARDWARE DESCRIPTION  
...............................................2  
C: VIDEO TESTS  
D: AUDIO TESTS  
E: DATA TESTS  
......................................................................4  
....................................................................10  
....................................................................11  
F: CONNECTIVITY ....................................................................11  
G: SUMMARY  
....................................................................13  
iii  
A: SETUP PROCEDURE  
The Zydacron OnWAN Z340 is a PC card based CODEC specifically designed for  
IP (H.323) networks only. The plug in card requires a spare PCI slot in the users  
PC. Connectivity for the camera, audio, auxiliary video output and an optional  
audio headset are provided by a Breakout cable.  
Set up was straightforward. The camera (including an integral microphone) was  
plugged into one breakout cable and positioned on top of the PC visual display unit.  
Software was supplied on a CD ROM but following advice from Zydacron a later  
version was downloaded from the Zydacron web site (www.zydacron.com) and  
installed on both systems.  
The Zydacron OnWAN Z340 card and the host PC share a common IP address.  
During the set-up procedure user information including the IP address of the  
Gatekeeper, if one is deployed on the network, and the address of any on line  
directory are keyed into the OnWAN software menus.  
The test procedure was carried out using PCs running Windows 98 in Edinburgh  
and Windows 2000 at Newcastle.  
During the set-up period some serious problems were experienced that required the  
assistance of specialist network staff to diagnose and rectify. Very poor video  
quality was experienced between the two Zydacron OnWAN Z340 units. This was  
traced to auto negotiation problems between the host PCs and the local area  
network switches. Changing the switch settings to Fixed Full Duplex significantly  
improved the video performance. It was found that the OnWAN Z340 CODECS  
were also less tolerant of received packet loss than has been our experience during  
the evaluation of other manufacturer’s equipment.  
The technical details of the PC platforms were:  
Newcastle RM Pentium III 1GHz  
Edinburgh Dell Pentium III 933MHz PC  
PC  
512Mb RAM Windows 2000  
256Mb RAM Windows 98  
Approximate set-up time:  
Documentation quality:  
45 minutes (excluding network debugging)  
The unit is supplied with a comprehensive Installation  
Guide, and a Video Camera User Manual. On  
completion of the software installation, online help  
and a Software User Guide in PDF format are also  
available.  
1
B:  
HARDWARE DESCRIPTION  
General  
The Zydacron OnWAN Z340 is a PC card based CODEC intended for a spare PCI  
slot. The complete system includes a camera with integral microphone, an  
audiovisual breakout cable and the OnWAN operating software. The PC powered  
loudspeakers together with the camera microphone provide hands free sound. The  
OnWAN software generates the on-screen graphical interface and supports the  
following operating systems: Windows 98, NT, 2000, ME and XP.  
Dimensions:  
CODEC Card (w x h) 22 x 10.6 cm  
Composite/YC Connector  
Video Inputs  
(Breakout cable)  
Main camera  
Composite  
Y/C  
Composite  
8 pin mini DIN  
4 pin mini DIN  
RCA Phono  
Object camera/auxiliary  
Object camera/auxiliary  
Y/C – Composite adaptor  
Level  
Connector  
Audio Inputs  
(Breakout cable)  
Camera microphone  
Auxiliary or VCR  
Headset microphone  
External microphone  
Mic  
Line  
Mic  
Mic  
8 pin mini DIN  
RCA Phono  
3.5mm Mini jack  
3 pin Mini XLR  
Level  
Connector  
Audio Outputs  
(CODEC card)  
PC Powered Speakers  
(Breakout cable)  
Headset earpiece  
Line  
Line  
3.5mm Mini jack  
3.5mm Mini jack  
Other  
RJ11 Phone-set connector  
The audiovisual breakout cable is connected to the CODEC card via a 15-pin D  
type connector.  
Cables Supplied  
1 off audiovisual breakout cable  
1 off 3.5mm Mini jack – 3.5mm Mini jack cable  
1 off RCA Phono – 4 pin mini DIN connector  
2
Mobility  
As the Zydacron OnWAN Z340 CODEC is a card within a desktop PC system it  
cannot be moved easily. To enable operation, each new connection at each new  
location will require the local IP address of the host PC to be updated.  
System Operation  
On launching the OnWAN software application the main Video Window opens.  
This window comprises three sections.  
1. Control Toolbar at the top of the Video Window  
2. Video Window  
3. Status Bar below the Video Window  
The control toolbar includes buttons to select the following menus: Dial, Hang-up,  
Directory, Loudspeaker Volume, Microphone Mute, Video Input and the Controls  
menu for video, audio and data. This Controls menu enables audio levels and the  
video signal type (Composite or Y/C) to be selected. The toolbar may be  
customised by adding/removing buttons to meet individual preferences.  
When not in a call the OnWAN Video Window displays the local video source at  
CIF resolution (352x288 pixels). In the illustration above the overall PC display  
resolution is 1024x768 pixels and the default size of the Video Window is 352x288  
pixels. When a call is established the window then switches to a display of the far  
end video with the local video reduced to a much smaller Picture in Picture (PIP).  
This PIP may be moved to each of the four corners of the window, varied in size or  
3
switched off.  
The video window size may be expanded to 640x480 or even full screen but this  
does not increase the base CIF resolution, so the resulting video quality is then  
degraded accordingly.  
The Status Bar below the video window is made up of two sections and displays  
information on both the incoming and transmitted signals:  
1. Connection status information  
2. Active video and audio signals (Near and Far)  
3. Audio level meters (Near and Far)  
4. Connection status Light Emitting Diode (LED)  
5. Near End status LED  
6. Call duration timer  
7. Clock  
The LEDs change colour to indicate: Network Congestion, Gatekeeper Registration  
Status, Call Connected, and Collaboration Channel open.  
The 'manual dial' and 'address list' menus were easy to operate but only a limited  
number of menu options were available i.e. IP Address and Bandwidth. It is not  
possible for example to select video or audio compression protocols prior to a call.  
The last four previous calls are available via a pull down menu as opposed to the  
more common single last number redial. Four Speed Dial numbers are also offered  
from the 'manual dial' and 'address list' menus.  
A call status page, AVC Modes, is readily available from the main menu and  
indicates the target data rate for video, data and audio, the audio protocol in use and  
the status of the data channel. It does not however provide any information on video  
protocols, packet loss, jitter, video frame rate, etc. However once a call has been  
established it is possible to force the transmitted audio protocol to G.711, G.722 or  
G.728 from within this AVC Modes menu  
Data and Application Sharing is provided via NetMeeting. The standard  
NetMeeting menu is launched by opening a Data Collaboration channel between the  
units. Whiteboard, Chat, File Transfer and Application Sharing are then all  
available.  
C:  
VIDEO TESTS  
The Zydacron OnWAN Z340 specifies both H.261 and H.263 video coding. During  
the evaluation, when initiating a call from a Zydacron OnWAN Z340 we were  
unable to select the video coding. In addition there was no indication from the Z340  
software of the video coding in use. Zydacron informed us that the default coding  
for the OnWAN Z340 was H.263. On this basis we proceeded with the tests  
assuming that all video coding was to H.263 protocols.  
For the following tests with video protocol H.263 the audio protocol was G.722.  
4
Objective Video Tests: Signal measurements  
1. 75% EBU bars  
2. Grey scale  
Subjective Video Impairments Tested:  
Lip synchronisation  
LS  
Block distortion (tiling)  
Blurring (reduced edge sharpness and spatial detail)  
Colour errors  
Jerkiness (distortion of smooth motion)  
Object persistence  
BLK  
BLR  
CLR  
JRK  
OP  
(lagging images from previous frames as faded or outline images)  
Scene cut response (i.e. time to build up the new image)  
SCR  
Scale of impairments:  
Imperceptible  
Perceptible  
Slightly annoying  
Annoying  
1
2
3
4
5
Very annoying  
Panasonic MII Test Tape:  
Signals recorded  
1. EBU colour bars  
2. Grey scale  
Time on tape  
1min 30secs  
1.40 - 2.40  
3. Blue field  
2.50 - 3.50  
4. Medium close up female face, still  
5. Medium close up female face, talking  
6. Close up face, nodding  
4.00 - 5.00  
5.10 - 6.10  
6.20 - 7.20  
7. Close up face, shaking head side to side  
8. Zoom out slowly to wide angle three people  
9. Zoom in quickly to close up of centre person  
10.Turntable speeds: 1,2,3 and 4  
7.30 - 8.30  
8.40 - 9.40  
9.50 - 10.50  
11.00 - 15.30  
15.40 - 16.40  
16.50 - 17.50  
20.30 - 20.50  
21.00 - 22.00  
22.10 - 23.23  
11.Football sequence  
12.Zoom in and out of “A to Z” map  
13.Text legibility, font sizes 20 to 12 pt  
14.Cut tests, scenes various with camera movements  
15.Man teaching at whiteboard  
To ensure accuracy of measurement at the remote site, all signals are to be  
monitored prior to transmission.  
5
Test 1 (H263): Colour bar test  
(Insert 75% EBU bars at local site, measure at remote site)  
Unable to measure as video is displayed on PC Monitor only.  
Peak to peak video amplitude  
Peak to peak sync amplitude  
Peak to peak burst amplitude  
Do chroma vectors lie in their boxes?  
Any waveform aberrations?  
v
v
v
Subjective Impairments H.323 384 Kbps 768 Kbps  
BLK  
BLR  
CLR  
3
2
1
2
1
1
Test 2 (H.263): Grey scale  
(Insert grey scale at local site, measure at remote site  
Unable to measure as video is displayed on PC Monitor only.  
Peak to peak video amplitude  
Peak to peak sync amplitude  
Any waveform aberrations?  
v
v
Subjective Impairments H.323 384 Kbps 768 Kbps  
BLK  
BLR  
CLR  
2
1
1
2
1
1
Test 3 (H.263): Blue screen  
(Insert blue screen at local site, measure at remote site)  
Unable to measure as video is displayed on PC Monitor only.  
Any waveform aberrations?  
Subjective Impairments H.323 384 Kbps 768 Kbps  
BLK  
CLR  
2
1
1
1
Test 4 (H.263): Medium close up female (still)  
Subjective Impairments H.323 384 Kbps 768 Kbps  
BLK  
BLR  
CLR  
2
2
1
2
1
1
6
Test 5 (H.263): Medium close up female (talking)  
Subjective Impairments H.323 384 Kbps 768 Kbps  
LS  
3
4
2
1
2
3
3
2
1
2
BLK  
BLR  
CLR  
JRK  
Test 6 (H.263): Close up head (nodding)  
Subjective Impairments H.323 384 Kbps 768 Kbps  
BLK  
BLR  
CLR  
JRK  
4
3
1
2
4
3
1
2
Test 7 (H.263): Close up head (shaking side to side)  
Subjective Impairments H.323 384 Kbps 768 Kbps  
BLK  
BLR  
CLR  
JRK  
4
3
1
2
4
3
1
2
Test 8 (H.263): Medium close up, slow zoom out to three shot  
Subjective Impairments H.323 384 Kbps 768 Kbps  
BLK  
BLR  
CLR  
JRK  
3
3
1
3
3
2
1
2
Test 9 (H.263): Three shot, quick zoom in to medium close up centre person  
Subjective Impairments H.323 384 Kbps 768 Kbps  
BLK  
BLR  
CLR  
JRK  
4
4
1
3
3
2
1
2
7
Test 10 (H.263): Turntable speed 1  
Subjective Impairments H.323 384 Kbps 768 Kbps  
BLK  
BLR  
CLR  
JRK  
3
3
2
3
2
2
2
2
Test 10b (H.263): Turntable speed 2  
Subjective Impairments H.323 384 Kbps 768 Kbps  
BLK  
BLR  
CLR  
JRK  
4
3
2
3
3
2
2
3
Test 10c (H.263): Turntable speed 3  
Subjective Impairments H.323 384 Kbps 768 Kbps  
BLK  
BLR  
CLR  
JRK  
4
3
2
3
4
3
2
3
Test 10d (H.263): Turntable speed 4  
Subjective Impairments H.323 384 Kbps 768 Kbps  
BLK  
BLR  
CLR  
JRK  
4
3
2
4
4
3
2
4
Test 11 (H.263): Football sequence  
Subjective Impairments H.323 384 Kbps 768 Kbps  
BLK  
BLR  
CLR  
JRK  
4
3
2
3
4
3
2
3
8
Test 12 (H.263): Zoom in and zoom out of ‘A to Z’ map  
Subjective Impairments H.323 384 Kbps 768 Kbps  
BLK  
BLR  
CLR  
JRK  
5
5
1
5
5
5
1
5
Test 13 (H.263): Text legibility (% of screen height) at viewing distance approx. 5x  
screen diagonal  
Legibility H.323  
20 pt (3.5%)  
16 pt (3%)  
14 pt (2.5%)  
12 pt (2.3%)  
384 Kbps 768 Kbps  
Yes  
Yes  
No  
Yes  
Yes  
No  
No  
No  
Test 14 (H.263): Video with several vision cuts  
Subjective Impairments H.323 384 Kbps 768 Kbps  
BLK  
BLR  
CLR  
OP  
SCR  
JRK  
4
4
1
1
3
5
4
3
1
1
3
4
Test 15 (H.263): Man teaching with flip chart  
Subjective Impairments H.323 384 Kbps 768 Kbps  
LS  
3
4
3
1
2
3
3
2
1
2
BLK  
BLR  
CLR  
JRK  
Test 16: Playback from a domestic VHS videotape player  
Is picture stable?  
Yes  
9
D: AUDIO TESTS (ITU standards only)  
As the second audio line input could not be activated on either unit, it was not  
possible to carry out tests 2 or 3.  
Test 1 was carried out with test signals inserted into the Headset Microphone input  
with the Echo Canceller set to OFF. The audio output level was then adjusted by the  
system volume control.  
Test 1: Frequency response (-3dB)  
(Insert a -30dB (Mic Level) signal at the local site, measure at remote site)  
G.722  
5.6KHz  
G.728  
3.5KHz  
G.7111  
3.3KHz  
Test 2: Headroom (measured on G722 connection)  
(Insert increasing amplitude 1 KHz tone at local site, monitor for overload  
distortion at remote site)  
Overload occurs at:  
Not Measured  
Test 3: Audio Level  
(Insert -6dBm 1KHz tone at local site, monitor received level at remote site)  
Remote site signal measures:  
Not Measured  
Test 4: Echo Cancellation  
Setup  
The echo canceller is fully automatic in operation.  
Lecture Theatre  
Not Tested  
Not Tested  
Room  
Y
Y
Audio levels adequate? (Y/N)  
Audio quality acceptable? (Y/N)  
Echo cancellation acceptable? (Y/N) Not Tested  
Quality of double talk Not Tested  
Y*  
Poor  
Comments: In tests with the JVCS Management Centre the received audio level  
was measured as peaking between 0 and +4dBm. Tests were carried  
out with AGC Off and the microphone level was adjusted to achieve  
the correct received level at the management centre. With AGC On,  
when the user was not speaking there was a high background noise  
level. AGC status is selected from the Controls Menu.  
*While the Echo Cancellation was acceptable there was a noticeable  
residual echo at times.  
10  
E: DATA TESTS  
Successful data sharing sessions over H.323 IP networks were initiated between  
two Zydacron OnWAN 340 units. Sessions with a Polycom ViaVideo were also  
successful.  
F: CONNECTIVITY  
Connectivity between Like Machines  
H.323  
There were no problems connecting between the Zydacron OnWAN Z340 units at  
Edinburgh and Newcastle over H.323.  
Time to Connect  
H.323  
All Speeds  
24 Seconds  
Connectivity with Other Machines (models listed with comments)  
Successful connections were made in each direction with the following CODECs  
H.323  
Tandberg 6000  
Polycom ViaVideo  
Polycom VS 4000  
Polycom 512MP  
NetMeeting Webcam  
Connectivity with JANET Videoconferencing Switching Service (JVCSS)  
H.323  
Successful connections were made to the Management Centre IP MCU, H.261  
Video and G.722 Audio. The audio level at the Management Centre was measured  
as peaking between 0 and +4dBm. Although there was no indication of the video  
coding in use as this test was satisfactory it does prove that the OnWan Z340 is also  
capable of handling H.261 video coded signals.  
11  
Procedure for making a call  
1. Select Dial button on the graphical interface toolbar.  
2. Select Call Speed  
3. Input IP address.  
4. Select Call Button on the Dial Menu.  
Or use the Local or On-Line Directory list from the graphical interface. Also  
available: a pull down list of the last four previous calls and four Speed Dial  
numbers.  
12  
G: SUMMARY  
Sꢀ A PCI card installed in a desktop PC operating at connection speeds between 128 Kbps  
& 768Kbps using the IP, H.323 protocol.  
Sꢀ Easy to use graphical interface.  
Sꢀ Supports, H.261 and H.263, video coding.  
Sꢀ Supports G.711, G.722, G.723, G.728, audio coding.  
Sꢀ Data and application sharing using NetMeeting.  
Sꢀ Auxiliary video and audio inputs.  
13  

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