Clear-Com VOICE2 - Manual (Page 84)

Vitec Group Communications
VoICE IP Interface User Manual
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Codec Configuration
The Codec configuration dialogue is accessed via the sequence:
Menu->Option->Codecs
Figure 5-12: Codec Configuration Dialogue
Sampling rate: This configuration must be identical to the chosen
sampling rate of the server. The available frequencies are 8kHz,
16kHz and 32kHz. A larger sampling frequency will provide better
audio quality at the cost of more bandwidth.
Codec Type: The type of CODEC to be used for audio processing.
The type of CODEC selected will depend on such factors as the
required audio quality and the bandwidth available on the network
connection.
1. 8kHz sampling rate
a. Speex
2. 16kHz sampling rate
a. G.722
b. Speex
c. Linear
Note
No warning will be given if the sampling rate is
not the same as that of the server