RADVision SCOPIA VC240 manual

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RADVision SCOPIA VC240 manual | Manualzz

APPENDIX 01/11

TEST RESULTS FOR RADVISION SCOPIA® VC240

RADVISION Manufacturer:

Model: SCOPIA® VC240

2.5 Software Version:

Optional Features and

Modifications:

Date of Test:

None

11th – 15th April 2011

720p High Definition Camera

SCOPIA® VC240 System

Remote Control

ii

C O N T E N T S

A: INTRODUCTION

B: SETUP PROCEDURE

Page No.

...........................................................1

...........................................................1

C: HARDWARE DESCRIPTION .............................................. 2

D: SYSTEM OPERATION ................................................ 8

E: VIDEO TESTS SUMMARY ..................................................10

F: AUDIO TESTS SUMMARY ............................................10

G: CONNECTIVITY ................................................................. 10

Appendix 1 Detailed Physical Information .......................................13

Appendix 2 Detailed Video Tests …………...................................... 14

Appendix 3 Detailed Audio Tests …………..................... ................ 14

iii

A: INTRODUCTION

The RADVISION SCOPIA® VC240 is a self contained High Definition (HD) videoconferencing system with a picture resolution of 1280 x 720 pixels (720p).

The system comprises a 24” monitor, CODEC, camera with integral microphone and loudspeakers integrated into a single desktop unit. Compatibility with other

H.323 and SIP CODECS is achieved across a range of resolutions from CIF (352 x

288 pixels) up to 1280 x 720 depending on the capability of the remote CODEC and the connection bandwidth.

Feature Summary:

An integrated high definition videoconferencing system which supports variable resolution up to 1280 x 720 pixels (720p).

A single desktop unit comprising: The 24” picture monitor, CODEC, camera with microphone and dual loudspeakers.

A CODEC, operating at connection speeds up to 2 Mbit/s over H.323 and SIP.

Supports H.263, H.264, and H.264 SVC video coding.

Supports a wide range of resolutions including HD w720p (1280 x 720), and w480p (848 x 480).

Supports G.711, G.722, G.722.1 and G.729 audio coding

Fixed HD camera with a native resolution of 1280 x 720.

Analogue stereo input (local PC audio monitoring only).

External microphone input.

Stereo headphone output.

H.239 second video connection up to HD w720p (1280 x 720) resolution.

Digital (DVI) and analogue (VGA) PC inputs.

B: SETUP PROCEDURE

Setting up the SCOPIA® VC240 system was straightforward. After unpacking, the stand requires adjusting and its base fitting.

The connections for basic operation were clearly illustrated on the quick setup guide and involved:

Establishing an Ethernet IP network connection through the single RJ45-

RJ45 cable.

Connecting the external power unit to the CODEC.

System set up was conveniently configured through the on-screen menus via the hand held remote control. IP address, IP Gateway, Subnet mask and Gatekeeper address were all entered through these menus.

Approximate set-up time: 10 minutes.

Documentation quality: The supplied printed Quick Setup guide and

Administrators guide available on CD were both concise and easy to follow.

1

C: HARDWARE DESCRIPTION

General

This compact standalone system requires no additional equipment for basic conferencing. Where data sharing is required a PC or laptop computer may be connected and there are provisions for an external microphone and headphones. The

CODEC will establish connections up to a maximum bandwidth of 2 Mbit/s and delivers a peak image resolution of 720p at 30 frames per second. The system has a single auto switching 10/100/1000 Ethernet connection with a loop through connector to attach a local computer.

The 24 inch Samsung monitor has a native resolution of 1080p and delivered excellent picture quality when displaying images and for PC data when not conferencing.

The SCOPIA® VC240 system supports several video resolutions including:

1280 x 720 @30fps: HD720p

848 x 480 @30fps: 480P

704 x 576 @30fps: 4CIF

512 x 288 @30fps: WCIF

352 x 288 @30fps: CIF

The image resolution and frame rate are dependent on the call connection bandwidth and the Video mode (Motion or Sharpness) setting, the default setting being Sharpness:

Video Mode Sharpness Motion

Connection Bandwidth Resolution Frame rate Resolution Frame rate

128 Kbit/s 353x288 10fps 353x288 10fps

384 Kbit/s 848x480 20fps 512x288 25fps

768 Kbit/s

1 Mbit/s

2 Mbit/s

848x480

1280x720

1280x720

25fps

25fps

25fps

848x480

1280x720

1280x720

25fps

25fps

25fps

Both Picture in Picture (PIP) and Picture outside Picture (POP) display formats are supported. This allows both near and far end images to be displayed simultaneously on a single picture monitor. The size, position and transparency of the PIP image are user configurable within the setup menu.

2

Full screen of the far end image with near image Picture in Picture (PIP)

Far and near image side by side

Large far image, small near image Picture outside Picture (POP)

3

The “Source” button on the remote control selects either the PC (analogue PC input/

DVI input) or the VC (conferencing CODEC output) to be displayed on the picture monitor. To preview the computer output during a videoconference or to use the system as a PC monitor when not in a call, either PC or DVI are selected.

During a conference the “Layout” button on the remote control cycles between the various screen layouts:

PC/DVI input

Full screen of the computer image

Full screen of the computer image with far image PIP

Side by side computer and far image

Large computer image with, small near and far images

VC mode

Full screen of the far image

Full screen of the far image with near image PIP

Side by side far and near image

Large far image with small near image

When H.329 dual images are either transmitted or received the remote control layout button cycles between the available screen layouts in VC Mode:

Transmit H.239

Full screen of the presentation image

Full screen of the presentation image with far image PIP

Side by side presentation and far image

Large presentation image with small near and far images*

Receive H.239

Full screen of the presentation image

Full screen of the presentation image with far image PIP

Side by side presentation and far image

Large presentation image with small far image

*The ability to display all three images: Presentation, near and far is only available at the H.239 transmit end. At the receive end only two images i.e. the presentation and far images may be displayed simultaneously.

4

H.239 Call, large presentation image, small near and far images, Transmit End *

Presentation and far images side by side

Full screen presentation with far image PIP

5

The 720p High Definition (HD) fixed camera has a native resolution of 1280 x 720 pixels at 30 frames per second. The fixed (non zoom) lens offers a horizontal viewing angle of 58.4 degrees which provides an acceptable image for two conference participants. The camera has a manual tilt facility and together with the picture monitors pan, tilt and elevation adjustments permits a reasonable viewing position to be obtained.

Remote camera zoom control is listed as a feature but was not functioning with other vendors’ products. RADVISION confirmed that this feature is to be supported in later software versions

A PC may be directly connected to the CODEC via the DVI-D or the analogue

VGA inputs. The set up menu selects the appropriate connection. The DVI input does not support High Definition Content Protection (HDCP.

The following PC resolutions and frame rates are supported.

At an aspect ratio of 4x3

800 x 600 at 56Hz, 60Hz, 72Hz, 75Hz

1024 x 768 at 60Hz, 70Hz, 75Hz

1280 x 1024 at 60Hz, 75Hz

At an aspect ratio of 16x9

1280 x 800 at 60Hz

1440 x 900 at 60Hz, 75Hz

1600 x 900 at 60Hz

1680 x 1050p at 60Hz

1920 x 1080p at 60Hz

H.239 dual video coding provides a second unidirectional video channel during

H.323 calls, but without a dedicated second audio channel, to allow simultaneous transmission of the participants and PC material. The bandwidth is shared between the PC channel and the camera video in a fixed ratio with the majority of the bandwidth allocated to the camera channel.

When presentation material is transmitted the resolution and frame rate of the main and second video channels depends on the overall connection bandwidth. Below

256 Kbit/s PC material is not transmitted at all. At connection bandwidths below

1Mbit/s the system protects the resolution of the presentation (PC) channel at 720p while reducing the resolution of the main video channel.

6

The following table illustrates how the main channel resolution varies with bandwidth.

Main Channel Only

Video Mode: Sharpness

Main Plus Presentation

Video Mode: Sharpness

Call Bandwidth Resolution Frame rate Resolution

384 kbit/s 848x480 20fps 512x288

768 kbit/s

1Mbit/s

1280x720

1280x720

20fps

25fps

848x480

1280x720

Frame rate

20fps

25fps

25fps

2Mbit/s 1280x720 25fps 1280x720 25fps

Main Channel Only

Video Mode: Motion

Main Plus Presentation

Video Mode: Motion

Call Bandwidth Resolution Frame rate Resolution Frame rate

384 kbit/s

768 kbit/s

1Mbit/s

2Mbit/s

512x288

848x480

1280x720

1280x720

25fps

25fps

25fps

25fps

352x288

848x480

1280x720

1280x720

25fps

25fps

25fps

25fps

Several audio formats are supported by the CODEC: G.722.1, G.722, G.711 and

G.729

The PC audio input is not active during a conference. It only feeds PC audio to the local monitor speakers when the PC/DVI source input is selected outside of a videoconference call. The audio input is not available either locally or transmitted to the remote sites when the system is in a videoconference call.

All audio input and output connections are presented on industry standard 3.5mm mini-jack.

Encryption is not supported by the SCOPIA® VC240. RADVISION confirmed that this feature is to be supported in later software versions.

7

D: SYSTEM OPERATION

The system is limited to set up and control via the infra-red remote control. The onscreen menus are both logical and easy to use.

System setup menu

The “Source” button on the remote control selects the input to the display screen from the VC (CODEC) output or either of the PC analogue or digital sources.

Selecting a PC source allows the user to preview their computer output during a conference or as a PC monitor when not in a call. The “Layout” button on the remote control cycles between the available screen layouts. Microphone and loudspeaker mute buttons are also available.

SCOPIA® VC240 Remote Control

8

An H.239 connection is initiated and terminated through the remote control using the single Presentation source button:

Pressing this button for a short period selects the computer presentation source and starts the H.239 link.

Pressing the button again for a short period terminates the H.239 link.

The camera occupies one channel and the source connected to either PC input the second channel. At the remote site these two images may either be viewed on two separate monitors or, using POP, displayed on a single large screen, depending on the capability of the remote CODEC.

The system boots up from cold in approximately 50 seconds. When not in a call the system automatically goes into sleep mode after a user defined period of time. It may also be put into sleep mode via the remote control. A flashing blue light on the monitor indicates that sleep mode is selected. An incoming call or pressing any button on the remote control will return the system to active mode.

The comprehensive call information menu displays call status data including connection bandwidth, frame rate, compression protocols and packet loss. During the evaluation, in calls with some other vendors’ systems, although moving images were in fact being transmitted the menu indicated zero (0) transmitted frame rate.

Call information menu

During an H.239 call three separate images, i.e. PC, near and far were displayed at the transmit site, but the receive site could only display two simultaneous images, those of the presentation and far images.

In calls between SCOPIA® VC240 systems it was possible to transmit two simultaneous high resolution images at 720p; however the frame rate of the presentation image was restricted to 2-3 frames per second at all connection speeds.

9

E: VIDEO TESTS SUMMARY

A basic videoconference between two SCOPIA® VC240 systems produced very good results at 720p resolution. During an H.239 conference the high resolution PC images were restricted, however, by the low frame rate of 2-3 frames per second.

This restricts the type of material that can successfully be shared. When H.239 was received from other vendors’ systems a higher frame rate of between10-15 frames per second was achieved.

The fixed focus lens high definition camera coped well with difficult lighting conditions.

F: AUDIO TESTS SUMMARY

The echo canceller is fully automatic in operation. The quality of echo cancellation and doubletalk from the system was very good. While a participant was speaking the integral microphone generated significant background noise, but when participants stopped talking, the CODEC’s Noise Gating feature produced silence.

This contrast was distracting. Using an external headset microphone did reduce this effect but background noise was still evident.

Audio levels adequate? (Yes/no)

Lecture Theatre Room

Not tested Yes

Audio quality acceptable? (Yes/no) Not tested

Echo cancellation acceptable?

(Yes/no)

Not tested

Yes

Yes

Quality of double talk

G: CONNECTIVITY

Not tested Very Good

H.323

There were no problems connecting between the SCOPIA® VC240 units over IP.

Time to Connect

H.323

All speeds 3 seconds

During an H.323 call the network connection was removed and reconnected after a specific time.

5 Seconds Picture froze - successful reconnection, call does not terminate

15 Seconds Picture froze - successful reconnection, call does not terminate

30 Seconds Picture froze - successful reconnection, call does not terminate

10

Connectivity with Other Machines (models listed with comments)

H.323

Successful connections were made in each direction with the following CODECs.

Where the systems supported H.239, presentation material was also shared.

CODEC

Model and Software

Version

Polycom PVX

S/W 8.0

Tandberg 6000 Classic

C

S/W B10.3 PAL

o

Polycom® VSX7000

n

S/W 9.0.5.1

n

Tandberg 990 MXP

e

S/W F7.0 PAL

c

Tandberg Edge 95

t

S/W F9.0 PAL

C

S/W F9.0 PAL

L

P

Tandberg C40 o

S/W TC4.0.1

Tandberg C60

S/W TC3.1.1

H

Polycom HDX 9002

S/W 2.6.0

.

2

Lifesize Team

3

S/W 4.7.10

9

Lifesize Room 200

S/W 4.7.0

Call

Bandwidth

2 Mbit/s

2 Mbit/s

Resolution

Transmitted by the SCOPIA®

VC240

1.5 Mbit/s 848 x 480

2 Mbit/s

2 Mbit/s

768 Kbit/s

2 Mbit/s

2 Mbit/s

2 Mbit/s

2 Mbit/s

2 Mbit/s

704 x 576

704 x 576

848 x 480

1024 x 576

1024 x 576

720p

720p

720p

720p

720p

Resolution in pixels and their common designation:

1280 x 720 720p

848 x 480 48

Resolution

Received by the SCOPIA®

VC240

320 x 240

352 x 288

352 x 288

576 x 448

720p

720p

720p

720p

720p

720p

720p

1024 x 576 W4CIF

704 x 576 4CIF

576 x 448 448p

512 x 288 WCIF

352 x 288 CIF

320 x 240 QVGA

11

H.239 issues

In general, where XGA content at a resolution of 1024x768 was transmitted by a third party CODEC or MCU to the SCOPIA VC240, the SCOPIA reported receiving 1024x720 pixels and the presentation image was cropped vertically. This effectively removed both the taskbar and the blue bar at the top of the shared application.

Polycom PVX

Polycom® VSX7000

Tandberg 6000 Classic

Tandberg 990 MXP

Tandberg 6000 MXP

Tandberg C60

Lifesize Team

Lifesize Room 200

No H.239 received by the Polycom PVX

RADVISION transmitted 704 x 576

H.239 failed to display

RADVISION transmitted 704 x 576

RADVISION transmitted 704 x 576

RADVISION received 352 x 288

RADVISION received 704 x 480

RADVISION received 704 x 480

Connectivity with JANET Videoconferencing Service (JVCS)

H.323

The SCOPIA connected successfully to the Codian high definition MCU negotiating H.264 video, 720p resolution and G.722 audio with video and audio in both directions. H.239 content was also shared.

When XGA content at 1024x768 was sent by the MCU the SCOPIA reported receiving 1024x720 pixels and the presentation image was vertically cropped. The received audio level was measured as peaking to -4dBm.

The SCOPIA connected successfully to the Accord MGC 100 standard definition

MCU negotiating H.263 video. While the SCOPIA transmitted 4CIF resolution at a low frame rate of about 10fps to the MCU it received CIF from the MCU with

G.722 audio in both directions.

H.239 content was also shared via the MGC MCU. When XGA content at

1024x768 was sent by the MCU the SCOPIA again reported receiving 1024x720 pixels and vertically cropped the presentation image. The received audio level was measured as peaking to -4dBm.

Procedure for making a call

1. Press Call button on the remote control

2.

3.

Input IP address

Press the Call button

Or use the local contacts directory available from the user interface Phone Book,

Call History or the Recent Calls lists. Missed calls are also listed in the call history.

12

Appendix 1 Detailed Physical Information

Dimensions: (w x h x d) 57 x 44 x 23 cm

Video Inputs

Analogue RGB

Analogue Y Pb

Pr

Main camera

Composite/YC

Digital

Internal

Connector

PC input

PC Input

connection

Analogue RGB

Digital

15 pin D type

DVI-D

The DVI-D input does not support High Definition Content Protection (HDCP).

Video Outputs

Connector Analogue RGB

Analogue Y Pb Pr

Composite/YC

Main monitor

Audio Inputs

Microphone

Microphone (external)

PC Audio*

Digital

Internal connection

Level

Connector

Microphone Internal connection

Microphone 3.5mm Mini-jack

Microphone 3.5mm Mini-jack

*PC audio signals are only present on the local monitor speakers when the system is not in a videoconference call. This audio cannot be transmitted over the videoconference link.

Audio Outputs

Main output

Level

Internal connection

Line

Connector

3.5mm Mini-jack Main output left/right

Data

1. 1 off LAN 10/100/1000 Mbits/s Ethernet connection (RJ45)

2. 1 off LAN 10/100/1000 Mbits/s Ethernet connection loop through (RJ45)

3. 1 off USB connector (future use)

Cables Supplied with the System

1. 1 off - Network cable, 2 Metres RJ45 – RJ45

2. 1 off - 2 metres DVI-D - DVI-D

3. 1 off - 2 metres 15pin D-type - 15pin D-type

4. 1 off - 2 metres audio mini jack – mini jack

5. 1 off – UK Power cable

13

Mobility

The SCOPIA® VC240 system can be moved easily. To establish a connection, each new location will need the local area network information re-entered into the configuration menu.

Appendix 2 Detailed Video Tests

The SCOPIA® VC240 includes analogue PC and DVI-D inputs which may only be transmitted via the H.239 second channel at 2-3 frames per second, sharing the available bandwidth with the main camera. For this reason the normal subjective video quality tests could not be carried out.

Appendix 3 Detailed Audio Tests

The SCOPIA® VC240 includes only one external audio input with fixed echo cancellation. As the echo cancellation could not be turned off the normal audio quality tests could not be carried out.

The echo canceller is fully automatic in operation. The quality of echo cancellation and doubletalk from the system was very good. While a participant was speaking the integral microphone generated significant background noise, but when participants stopped talking, the CODEC’s Noise Gating feature produced silence.

This contrast was distracting. Using an external headset microphone did reduce this effect but background noise was still evident.

Echo cancellation acceptable?

(Yes/no)

Lecture Theatre Room

Audio levels adequate? (Yes/no) Not tested

Audio quality acceptable? (Yes/no) Not tested

Not tested

Yes

Yes

Yes

Not tested Very Good Quality of double talk

14

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Questions and Answers

What is the brand and model of the videoconferencing system?
RADVision SCOPIA VC240.
What is the native resolution of the camera?
1280 x 720 pixels (720p).
What video resolutions does the system support?
Up to 1280 x 720 pixels (720p).
What audio formats does the system support?
G.722.1, G.722, G.711, and G.729.
Does the system support encryption?
Not currently, but a later software version will.
How many participants can participate in a single call?
This information is not provided in the given text.
Does the system support wireless connectivity?
This information is not provided in the given text.

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