User Manual

Configuring Audio Features
311
Voice Activity Detection (VAD)
Voice Activity Detection (VAD) is used in speech processing to detect the presence or absence
of human speech. When detecting 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. VAD can avoid
unnecessary coding or transmission of silence packets in VoIP applications, saving on
computation and network bandwidth.
Procedure
VAD can be configured using the configuration files or locally.
Configuration File
<y0000000000xx>.cfg
Configure VAD.
Parameter:
voice.vad
Local
Web User Interface
Configure VAD.
Navigate to:
http://<phoneIPAddress>/s
ervlet?p=settings-voice&q=
load
Details of the Configuration Parameter:
Parameter
Permitted Values
Default
voice.vad
0 or 1
0
Description:
Enables or disables VAD (Voice Activity Detection) feature on the Skype for Business phone.
0-Disabled
1-Enabled
Web User Interface:
Settings->Voice->Echo Cancellation->VAD
Phone User Interface:
None
To configure VAD via web user interface:
1. Click on Settings->Voice.