Setting Audio Quality Preference - Polycom ViewStation FX4000 User Manual

ViewStation FX/VS4000 User Guide

Setting Audio Quality Preference

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In most cases, the default setting identified during the initial
system setup will be adequate for quality audio. However, the
settings can be changed based on specific bandwidth
requirement in the Audio Quality Preference screen.
The Audio Quality Preference screen lets you set the call speed
threshold that determines which audio protocol is used. At the
selected speed or lower, the system uses the G.728 audio protocol.
Above the selected speed, the system uses the G.722 audio protocol.
G.722 audio delivers higher quality audio, but uses 48 Kbps of the
video bandwidth. G.728 delivers telephone quality audio and uses
only 16 Kbps of the video bandwidth.
For more information about the G.728, G.722, and G.722.1 audio
protocols, refer to Video and Audio Information in the Polycom
Office Integrators' Reference Manual.
To access the Audio Quality Preference screen:
Select System Admin > Admin Setup > Video Network > IMUX >
Audio Quality.
Note
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