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6.4.4 Audio
Echo Canceller –
this feature is to remove acoustic echo from a voice communication in
order to improve the voice quality
o
VAD –
stands for Voice Activity Detection, it allows the video phone to detect the
presence or absence of human voice during a call, when detecting a period of
silence, VAD replaces that silence efficiently with special packets that indicate
silence is occurring. It can facilitate speech processing and deactivate some
processes during non-speech section of an audio session.
o
CNG –
stands for Comfort Noise Generation, allows the video phone to generate a
comfortable background noise for voice communications during periods of silence in
a conversation. It is part of the silence suppression or VAD handling for VoIP
technology.
Mic Volume –
to configure the microphone’s volume for handset mode
Automatic Generation Control –
video phone will automatically adjust the amplification
circuit gain via signal
o
Sending-side –
disabled by default
Summary of Contents for AVCDP7
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