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In the Audio menu, you have access to the following sound settings:

• enabling/disabling echo cancellation during the conversation;

• enabling echo canceler calibration feature;

• enabling test echo mode; 

• enabling/disabling adaptive bitrate control depending on the bandwidth of the communication channel (it is recommended to disable it if there are problems with the connection);

• codec bitrate limit setting: indication of the maximum codec bitrate in case the channel bandwidth does not allow the codec to fully compress the data stream (set if adaptive bitrate control is disabled);

• enabling/disabling voice processing (voice quality improvement);

• enabling/disabling bass boost.

Codecs 

Here you can select necessary for operation audio codecs: OPUS, Speex 16 000 Hz, Speex 8 000 Hz, PCMU, PCMA, GSM, G722, G729, Speex 32000 Hz, L16

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