5.3

Group Policy
Setting Description
Disable RTAV When you enable this setting, the Real-Time Audio-Video feature is disabled.
When this setting is not configured or disabled, Real-Time Audio-Video is enabled.
This setting is located in the View RTAV Configuration folder.
Max frames per
second
Determines the maximum rate per second at which the webcam can capture frames. You can use this
setting to limit the webcam frame rate in low-bandwidth network environments.
The minimum value is one frame per second. The maximum value is 25 frames per second.
When this setting is not configured or disabled, no maximum frame rate is set. Real-Time Audio-Video
uses the frame rate that is selected for the webcam on the client system.
By default, client webcams have a frame rate of 15 frames per second. If no setting is configured on the
client system and the Max frames per second setting is not configured or disabled, the webcam
captures 15 frames per second.
This setting is located in the View RTAV Configuration > View RTAV Webcam Settings folder.
Resolution -
Max image
width in pixels
Determines the maximum width, in pixels, of image frames that are captured by the webcam. By
setting a low maximum image width, you can lower the resolution of captured frames, which can
improve the imaging experience in low-bandwidth network environments.
When this setting is not configured or disabled, a maximum image width is not set. RTAV uses the
image width that is set on the client system. The default width of a webcam image on a client system is
320 pixels.
The maximum limit for any webcam image is 1920x1080 pixels. If you configure this setting with a
value that is higher than 1920 pixels, the effective maximum image width is 1920 pixels.
This setting is located in the View RTAV Configuration > View RTAV Webcam Settings folder.
Resolution -
Max image
height in pixels
Determines the maximum height, in pixels, of image frames that are captured by the webcam. By
setting a low maximum image height, you can lower the resolution of captured frames, which can
improve the imaging experience in low-bandwidth network environments.
When this setting is not configured or disabled, a maximum image height is not set. RTAV uses the
image height that is set on the client system. The default height of a webcam image on a client system
is 240 pixels.
The maximum limit for any webcam image is 1920x1080 pixels. If you configure this setting with a
value that is higher than 1080 pixels, the effective maximum image height is 1080 pixels.
This setting is located in the View RTAV Configuration > View RTAV Webcam Settings folder.
Real-Time Audio-Video Bandwidth
Real-Time Audio-Video bandwidth varies according to the webcam's image resolution and frame rate, and
the image and audio data being captured.
The sample tests shown in Table 7 measure the bandwidth that Real-Time Audio-Video uses in a
Horizon View environment with standard webcam and audio input devices. The tests measure the
bandwidth to send both video and audio data from Horizon View Client to Horizon View Agent. The total
bandwidth that is required to run a desktop session from View Client might be higher than these numbers.
In these tests, the webcam captures images at 15 frames per second for each image resolution.
Table 7. Sample Bandwidth Results for Sending Real-Time Audio-Video Data from Horizon View Client to
Horizon View Agent
Image Resolution (Width x Height) Bandwidth Used (Kbps)
160 x 120 225
320 x 240 320
640 x 480 600
VMware Horizon View Feature Pack Installation and Administration
VMware, Inc. 39