Polycom PVX Manuale di istruzioni

May 2006

3725-22754-006/A 1

Release Notes

Polycom PVX Version 8.0.2

Polycom is pleased to announce the release of Polycom PVX™ version 8.0.2.

Polycom PVX version 8.0.2 delivers unprecedented technology and

performance to computer video conferencing. With premium audio and video

algorithms and enhanced collaboration features, the Polycom PVX software

delivers power and performance never before seen in computer video

conferencing.

Working together with a computer and a standard USB camera, the Polycom

PVX 8.0.2 software application brings video conferencing to your desktop. It

is ideal for employees who work from home, sales or consulting professionals

who travel, educators conducting distance learning events, or health care

professionals delivering services in remote facilities. Polycom PVX software

extends Polycom’s unmatched capabilities and conference room performance

to the desktop.

Polycom PVX 8.0.2 will continue to support the ViaVideo™ and ViaVideo II

cameras. However, Polycom recommends using standard USB 2.x webcams to

achieve the highest video quality. When you choose a standard webcam, the

computer’s processing capabilities let you use additional features such as

H.264 and Siren™ 14. View-only mode allows users without cameras to

participate in video conferences using audio and to share content using

People+Content™ and standards-based H.239.

What’s New in Release 8.0.2?

Polycom PVX 8.0.2 is a maintenance release. This release includes general

improvements to SIP interoperability and stability, support for the SIP Express

Router (SER) SIP server, and other minor improvements.

What’s New in Release 8.0.1?

Polycom PVX 8.0.1 is a maintenance release. A number of minor

improvements have been added to PVX for this release; however, the major

change is that you can now specify the CPU resources required by your

camera.

A new tab, the Advanced Tab, has been added to the Video page. Settings on

this tab allow you to configure PVX to compensate for a higher CPU load from

your camera driver. You can lower the estimated CPU power by a fixed

amount and, thereby, enhance the quality of your PVX video.

Release Notes

Polycom PVX Version 8.0.2

23725-22754-006/A

What’s New in Release 8.0?

•VGA (640x480) Resolution Support - Polycom PVX 8.0.0 supports sending

and receiving video at VGA and half-VGA resolutions. This can be

enabled on systems with higher speed CPUs and USB 2.0 cameras.

•Session Initiation Protocol (SIP) Support - Point-to-point SIP calling, direct

dialed or through a Nortel™ MCS or Microsoft® LCS 2005 (SP1) proxy

server, is supported.

•Universal Plug and Play (UPnP™) Support - Polycom PVX 8.0.0 supports

secure firewall traversal calls using UPnP-enabled home routers.

•Automatic Gain Control - Significant improvements were made to audio

input levels. A new automatic gain control was added that adjusts

microphone input to minimize echo reflected back to the far site. It also

adjusts the audio level into a conference to improve the volume match

with other endpoints connected to an MCU.

•H.239 Standards Based People+Content - Polycom PVX has full support

for H.239 standards based People+Content.

•Improved Calling with People+Content - The frame rate for people video

is no longer affected by enabling People+Content. At the point that

content is sent or received, Polycom PVX adjusts to leave more CPU cycles

for content video.

•Asymmetric Call Support - Polycom PVX 8.0.0 supports calls with ADSL

or cable modems with asymmetric bandwidth for upload and download.

•Network Adapter Management - Polycom PVX 8.0.0 offers more flexibility

in controlling which network adapter is used for video calls. The Network

setup page was streamlined to make configuration easier.

•Global Directory Server (GDS) ISDN Dialing Enhancement - Endpoints

listed in a directory with both an ISDN number and an ISDN extension

will be dialed by appending the extension to the number separated by a

delimiter of ##.

•Recent Calls List - The list includes incoming calls that were not answered.

•New Security Features - New security setup options allow users to:

—Restrict SIP setup page access.

—Lock user settings and prevent factory default settings from being

restored inadvertently.

—Disable location profile settings.

Release Notes

Polycom PVX Version 8.0.2

•User Interface Improvements

—Enhanced full-screen video allows users to see the Toolbar and PIP

while showing full-screen video. In earlier versions, switching to

full-screen video disabled access to all other windows except the

video window, which had exclusive use of the desktop.

—For systems without a camera, a user-configurable image can be

displayed in the local video window.

—Users now have direct access to the camera, tone pad, and data

sharing controls from the main Toolbar.

—By using Location Profiles, users can better control multiple location

network settings.

•Additional Software Updates

—Users can disable the H.264 video algorithm on the Setup > Video

page.

—The default media port range was changed to 3230-3237.

—T.120 is disabled by default.

—The web management interface is no longer supported.

Release Notes

Polycom PVX Version 8.0.2

43725-22754-006/A

Hardware and Software Requirements

Windows® Windows XP with Service Pack 1 or later (recommended)

Windows 2000 with Service Pack 4 or later

Processor Webcam with computer processing (recommended)

H.263 People video only:

•1.0 GHz Intel® Pentium® 3

•1.2 GHz Intel Pentium 4

•900 MHz Intel Pentium M

•1800+ AMD™ Athlon™ XP

H.264 People video only:

•1.5 GHz Intel Pentium 4

•1.2 GHz Intel Pentium M

•1800+ AMD Athlon XP

People+Content:

•2.0 GHz Intel Pentium 4

•1.4 GHz Intel Pentium M

•1800+ AMD Athlon XP

ViaVideo I and ViaVideo II camera

H.263 People video only:

•800 MHz Intel Pentium® III

•Any Intel Pentium 4 or Intel Pentium M

•1800+ AMD Athlon XP

People+Content:

•1.2 GHz Intel Pentium 4

•900 MHz Intel Pentium M

•1800+ AMD Athlon XP

(Polycom PVX requires a processor that supports the Intel SSE™

processor extensions. SSE is not supported on the Pentium II

family or AMD Athlon CPUs prior to the Athlon XP.)

RAM 256 MB

Note: More RAM may be required for users running multiple

applications.

Video Memory Minimum requirement: 16 MB

Hard Drive Space 60 MB available (for Polycom PVX software)

USB Camera USB 1.x or 2.x webcam, ViaVideo, or ViaVideo II camera (USB

2.x webcam recommended)

(camera is optional for view-only calls)

Audio • Headphones

•Microphone - options include a headset or webcam with

built-in microphone or a standalone analog microphone.

•Computer speakers (external or internal)

•Speakers connected directly to ViaVideo

Monitor SVGA (800 x 600) or higher resolution

Network Access Broadband IP (64 kbps and above)

Release Notes

Polycom PVX Version 8.0.2

For information about setting up Polycom PVX for use with a ViaVideo or

ViaVideo II, see the documentation that came with the camera. For information

about setting up Polycom PVX for use with a webcam, see the documentation

that comes with the software.

Supported Audio Devices and Webcams

Polycom PVX software is tested extensively with a wide range of audio devices

and webcams. For a list of compatible devices and for important information

about factors you should consider when selecting your audio and video devices,

refer to the Selecting Audio and Video Devices for Use with Polycom PVX document,

available at

http://www.polycom.com/common/pw_item_show_doc/1,1276,4556,00.pdf.

SoundStation2 and SoundStation2W

To make calls with PVX using the Polycom SoundStation2™ or

SoundStation2W™, you need the Computer Calling Kit. For more information

about this kit, refer to the Selecting Audio and Video Devices for Use with Polycom

PVX document, available at

http://www.polycom.com/common/pw_item_show_doc/1,1276,4556,00.pdf.

System Performance

For systems with a ViaVideo or ViaVideo II camera, most of the media

processing is done by the camera. People+Content sharing requires computer

processing and, therefore, demands a higher performance processor. Systems

with a 1.2 GHz Pentium 4 or later can support People+Content. Content sharing

will benefit from additional CPU speed.

For systems with a webcam, all of the processing is done on the computer. There

are a wide range of computer performance levels. To optimize the video

experience on each system, a CPU resource manager within the Polycom PVX

software gauges the system performance and adjusts the media features

accordingly.

Microsoft Internet

Explorer® Version 6.0 or later

Windows Media

Player® Version 9.0 or later

Microsoft DirectX®

Software Version 9.0b or later

Release Notes

Polycom PVX Version 8.0.2

63725-22754-006/A

You can also adjust the way Polycom PVX allocates system resources between

PVX and other applications. To do this, on the Setup > General page, click

Performance. Choose one of these performance settings:

Factors Affecting Video

The video format in a call depends on many factors — both on the near-site

system and on the far-site system.

Some of the other factors that can affect the video format include:

•System processor and speed

•PVX settings under Setup > General > Performance

•PVX settings under Setup > Video

•Gatekeeper configuration under Setup > H.323

•Audio format

•Presence of content video (send or receive)

•Camera type

Camera Driver Load

The For the camera you have selected, specify the camera driver’s load on the

system setting on the Setup > Video > Advanced page allows you to configure

PVX properly, especially if you need to compensate for a higher CPU load

from the camera driver. This setting enables you to lower the estimated CPU

power by a fixed amount so you can enhance the quality of your PVX video.

The original video capture driver load for PVX is approximately 150 MHz

worth of CPU resources. Therefore, on a 1.5 GHz computer, the video capture

driver will use 10% of the CPU (you can check this using the Task Manager).

On a faster computer, the load will be less, such as 5% on a 3.0 GHz system.

Setting Description

Balanced Good video without too great an impact on general application

performance.

Other Applications More processing power for running critical applications while

reducing the processing allocated to people video and audio.

Polycom PVX Great audio and video while reducing the responsiveness of

other applications.

Release Notes

Polycom PVX Version 8.0.2

In the For the camera you have selected, specify the camera driver’s load on

the system field on the Setup > Video > Advanced page:

The following table lists some examples of what you should specify for the For

the camera you have selected, specify the camera driver’s load on the system

setting for some of the webcams supported by PVX:

Note that, for best performance, only one USB camera at a time should be

plugged into the computer.

If you select... Subtract this amount from your actual CPU speed...

Low None

Medium 200 MHz

High 600 MHz

For this camera... Select this setting...

AVerMedia® AVerTV™ GO 007 FM Plus PCI Low

Creative® WebCam Live!® Motion High

Creative WebCam Live! Pro Medium

GlobalMedia® IREZ™ KD 1394 Low

GlobalMedia iREZ K2 USB 2.0 Medium

Logitech® QuickCam® for

Notebooks Pro P/N 961398-04030

Driver version 9.5.0 High

P/N 961240-04030

Driver version 8.4.1 Medium

Logitech QuickCam Pro 4000 Driver version 7.3.0 Low

Driver version 8.4.8 Low

Driver version 9.0.2 Medium

Logitech QuickCam Pro 5000 Driver version 9.0.2 Low

Logitech QuickCam Fusion™ Driver version 9.0.2 Medium

Note: If the Logitech Audio Echo

Canceller (AEC) is enabled,

select High.

Logitech QuickCam Orbit MP Driver version 9.0.2 Medium

Veo™ Velocity Connect Medium

V-Stream TV2800 (V-Stream Xpert DVD Maker USB 2.0) Low

Release Notes

Polycom PVX Version 8.0.2

83725-22754-006/A

For important additional information about the camera driver load, refer to the

Selecting Audio and Video Devices for Use with Polycom PVX document, available at

http://www.polycom.com/common/pw_item_show_doc/1,1276,4556,00.pdf.

PVX 8.0.2 Processor/Bit-rate/Resolution Tables

The tables in this section provide overall targets for different computer processor

types and call speeds.

Keep the following in mind when viewing the tables:

•The values listed in the tables assume that PVX is set to Balanced on the

Setup > General > Performance page. If you select Other Applications on

this page, PVX will use less processing power; if you select Polycom PVX,

PVX will use more of the CPU. For more information, refer to System

Performance on page 5.

•The values listed are based on the Low camera driver load setting. To check

this setting, see the For the camera you have selected, specify the camera

driver’s load on the system field on the Setup > Video > Advanced page. If

your camera driver load setting is set to High or Medium, you must

manually compensate for the different setting as follows:

—If your camera driver load setting is set to High, subtract 600 MHz from

the speed shown. For example, if your system’s CPU speed is 2000 MHz,

subtract 600 MHz from that, for a total of 1400 MHz.

—If your camera driver load setting is set to Medium, subtract 200 MHz

from the speed shown. For example, if your system’s CPU speed is 2000

MHz, subtract 200 MHz from that, for a total of 1800 MHz.

For more information about the camera driver load, refer to the Selecting Audio

and Video Devices for Use with Polycom PVX document, available at

http://www.polycom.com/common/pw_item_show_doc/1,1276,4556,00.pdf.

•The values listed are set to maximize the video experience for a wide variety

of user situations and can change in each release.

Release Notes

Polycom PVX Version 8.0.2

H.264 People Video Receive

H.264 People Video Transmit with Smoother Motion (default)

Processor Resolution Options Maximum Receive People

Video Rate

Intel Pentium 4 1.5 GHz VGA/4@15 384 kbps

Intel Pentium M 1.8 GHz VGA/4@30 384 kbps

Intel Pentium 4 2.0 GHz

Intel Pentium M 1.4 GHz

AMD Athlon XP 1800+

VGA/4@30

VGA/2@15 1920 kbps

Intel Pentium 4 2.4 GHz VGA/4@30

VGA/2@15 1920 kbps

Intel Pentium 4 3.2 GHz

Intel Pentium 4 2.8 GHz (HTT) VGA/4@30

VGA/2@30

VGA@15

1920 kbps

Intel Pentium 4 3.6 GHz

Intel Pentium 4 3.4 GHz (HTT) VGA/4@30

VGA/2@30

VGA@30

1920 kbps

Processor Call Rates (kbps) Maximum

People

Video Rate

<128 128 - <256 256 - <512 512 - 1920

Intel Pentium 4

1.5 GHz VGA/4@15 VGA/4@15 VGA/4@15 N/A 384 kbps

Intel Pentium 4

1.8 GHz VGA/4@30 VGA/4@30 VGA/4@30 N/A 384 kbps

Intel Pentium 4

2.0 GHz

Intel Pentium M

1.4 GHz

AMD Athlon XP

1800+

VGA/4@30 VGA/4@30 VGA/4@30 VGA/4@30 1920 kbps

Intel Pentium 4

2.4 GHz VGA/4@30 VGA/4@30 VGA/4@30 VGA/4@30 1920 kbps

Intel Pentium 4

3.2 GHz

Intel Pentium 4

2.8 GHz (HTT)

VGA/4@30 VGA/4@30 VGA/2@30 VGA/2@30 1920 kbps

Intel Pentium 4

3.6 GHz

Intel Pentium 4

3.4 GHz (HTT)

VGA/4@30 VGA/4@30 VGA/2@30 VGA@30 1920 kbps

Release Notes

Polycom PVX Version 8.0.2

10 3725-22754-006/A

H.264 People Video Transmit with Sharper Image

In the tables above:

•VGA/4 is 320x240 (or CIF/SIF for interop)

•VGA/2 is 320x480 (or 2CIF/2SIF for interop)

•VGA is 640x480 (or 4CIF/4SIF for interop)

•Processors are Pentium 4 or Pentium 4 with HTT

H.263 People Video

H.263+ video is scaled in a similar way to H.264. However, it is not as efficient

and it is not used at any call rate unless H.264 is disabled on PVX or the far site

does not support H.264.

For example:

•On a 2.4 GHz Pentium 4, PVX will support 1920 kbps VGA/4@30fps

•On a 3.6 GHz Pentium 4, PVX will support 1920 kbps VGA@30fps

Processor Call Rates (kbps) Maximum

People

Video Rate

<128 128 - <256 256 - <512 512 - 1920

Intel Pentium 4

1.5 GHz VGA/4@15 VGA/4@15 VGA/4@15 N/A 384 kbps

Intel Pentium 4

1.8 GHz VGA/4@30 VGA/4@30 VGA/4@30 N/A 384 kbps

Intel Pentium 4

2.0 GHz

Intel Pentium M

1.4 GHz

AMD Athlon XP

1800+

VGA/4@30 VGA/2@15 VGA/2@15 VGA/2@15 1920 kbps

Intel Pentium 4

2.4 GHz VGA/4@30 VGA/2@15 VGA/2@15 VGA/2@15 1920 kbps

Intel Pentium 4

3.2 GHz

Intel Pentium 4

2.8 GHz (HTT)

VGA/4@30 VGA/2@15 VGA@15 VGA@15 1920 kbps

Intel Pentium 4

3.6 GHz

Intel Pentium 4

3.4 GHz (HTT)

VGA/4@30 VGA/2@15 VGA@15 VGA@30 1920 kbps

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