silence is occurring. It can facilitate speech processing,
and deactivate some processes during non-speech
section of an audio session. It can avoid unnecessary
coding or transmission of silence packets in VoIP
applications, saving on computation and network
bandwidth.
CNG(Comfort Noise Generation): Allow IP phone to
generate comfortable background noise for voice
communications during periods of silence in a
conversation. It is a part of the silence suppression or
VAD handling for VoIP technology. CNG, in conjunction
with VAD algorithms, quickly responds when periods of
silence occur and inserts artificial noise until voice
activity resumes. The insertion of artificial noise gives
the illusion of a constant transmission stream, so that
background sound is consistent throughout the call and
the listener does not think the line has released.
Mic Volume
To configure Microphone volume for handset mode.
Automatic
Generation
Control
R47P will auto adjust amplification circuit gain via signal.
Automatic Gain Control(Sending-side): Disabled by
default
Automatic Gain Control(Receiving-side): Disabled by
default
Automatic Gain Control Target: Range from 1 to 20 dB.
3dB by default.
NetEQ
Filter forgetting factor base: Range from 0~255. 250 by default.
7.10 Phone->Video
Содержание VP-R49P
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