Specifying Advanced Video Properties

Selecting Audio and Video Devices for Use with Polycom PVX

To optimize the video from your PVX, you need to correctly specify the PVX video settings. Before you start, you need to know the CPU load level of your video input device. Refer to Determining the CPU Load for Your System for more information.

To specify the advanced video properties:

1.From the PVX Main page, select Setup > Video > Advanced.

2.Configure these settings:

Setting	Description

Enable VGA People	Select if your computer uses less than 15% of the
Encoding	CPU when PVX is running and no call is in progress.
	Clear if your computer uses more than 15% of the
	CPU while not in a call.

Video Quality	Select Smoother Motion to make video motion
	appear smooth, even though the picture may lose
	detail. Select this option when the call includes
	participants moving around the room and no shared
	documents.
	Select Sharper Image for a sharp, clear picture, even
	though the motion may not be as smooth. Select this
	option when all participants are seated and you need
	to show slides or another type of document during the
	call.

Enable VGA 30 frames	Clear this setting in most cases.
per second	Select if your device can support VGA at 30 frames
	per second while maintaining a low CPU load. Most
	cameras are not capable of doing this. Supported
	video input devices with this capability include:
	• PCI video capture cards
	• AVerMedia AVerTV GO 007 FM Plus PCI
	• GlobalMedia iREZ K2 USB 2.0
	• V-Stream TV2800 (V-Stream Xpert DVD Maker
	USB 2.0)

For the camera you	Select Low if the device’s driver has little impact on
have selected, specify	the total CPU load.
the camera driver’s	Select Medium if the device’s driver moderately
load on the system	increases the CPU load.
	Select High if the device’s driver significantly
	increases the CPU load.
	Refer to Determining the CPU Load for Your System
	for more information.

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