Polycom PVX Release Note page 6

Release Notes
Polycom PVX Version 8.0.2
Factors Affecting Video
Camera Driver Load
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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:
Setting
Balanced
Other Applications
Polycom PVX
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
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.
Description
Good video without too great an impact on general application
performance.
More processing power for running critical applications while
reducing the processing allocated to people video and audio.
Great audio and video while reducing the responsiveness of
other applications.
3725-22754-006/A