Table 2-9. Audio Features; Table 2-10. Microphone Pods - Polycom SoundStation2 EX, FX, VS4000 Integrator's Reference Manual

© Polycom, Inc.
The following table gives information about audio features.

Table 2-9. Audio Features

Parameter
a
Audio codecs
Mode
Gain control
Noise suppression
Echo cancellation
a. The protocol used depends on the protocols supported by the
opposite endpoint and on the line rate. Audio protocol is selected
automatically to provide optimum audio clarity.
b. Provides enhanced frame loss compensation.
The following table gives information about the microphone pods
supplied with the ViewStation EX, ViewStation FX, and VS4000
systems.

Table 2-10. Microphone Pods

Parameter
Pick-up elements
Coverage
Placement
Chapter 2 - Technical Information
Value/format
G.711, G.722, G.722.1
Full duplex
Automatic
Automatic
Instant adaptation
Value/description
3 hypercardioid pressure-zone microphones
360°
Minimum 6 ft (1.8 m) from speakers
Minimum 15 ft (4.6 m) from any other microphone
b
, G.728
17