Release Notes
Polycom PVX 6.0.2
pvx_rel602
System Performance
For systems with a ViaVideo or ViaVideo II camera, most of the media processing is done by the
camera. Systems with a 1.2 GHz Pentium 4 or greater can support People+Content. The
People+Content sharing requires PC processing and therefore demands the higher performance
processor. Content sharing will benefit from additional CPU speed.
For systems with a web cam, all of the processing is done on the PC. There is a wide range of PC
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.
If you do not use People+Content, disable this feature for the best video and audio quality. If you
use People+Content, you can adjust the way the Polycom PVX software allocates system
resources between people video and audio and content. To do this, choose Setup > General and
then click Performance. Choose one of these performance settings:
This Setting Provides:
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.
Issues and Restrictions
The following types of issues are described in this section:
Audio Issues Network Issues VideoMail Issues
Calling Issues ViaVideo Hardware Issues Web Cam Hardware Issues
Microsoft Windows Video Issues
Audio Issues
If the audio from a system with a web cam and PC microphone is loud or distorted,
reduce the microphone gain setting. This is under the audio tab of the setup screen.
When adjusting audio settings, ensure that your system is not muted. The audio
adjustment slide bar is accessible only if the system is unmuted.
To minimize the echo that might be returned to the person at the far end, do the
following:
• Reduce the web cam microphone gain under the audio tab of the setup screen.
• Reduce the volume of the local speakers.
• Separate the microphone and speakers as far as possible.
In a multipoint call, a Polycom PVX system with a web cam may sound either too loud or
too soft compared to the other participants in the call. If this is the case, adjust the
microphone gain. To do this, click Setup > Audio. This solution is much more effective
than adjusting the playback volume depending on who is speaking.
updated 1.18.2005
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(4 pages)
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