| Configuring the Audio Settings | 128
Parameter Description Configuration Method
Line AEC
Enable or disable echo
cancellation for line input device.
• On- eliminate the echo to
the line input devices. If you
select an acoustic device (for
example: a microphone) to be
the line input, you can enable
this configuration.
• Off- do not eliminate the
echo to the line input devices.
If you select a non-acoustic
device (for example: a
mobile phone) to be the line
input, you can disable this
configuration.
Note: the default value is Off.
This configuration is available
only when Audio Input is set to
Line Input/USB to Line input. If
you change this parameter, the
system will reboot to make the
change take effect.
Web user interface
Audio Line In
Configure the volume of line
input device.
Note:
• Valid value: Integer from -50
to 50dB.
• The default value 0 means
to use the default sending
volume. The value you set is
based on the default value.
• This configuration is available
only when Audio Input is set
to Line Input/USB to Line
input. If you change this
parameter, the system will
reboot to make the change
take effect.
• It is not applicable to VC200.
Web user interface
Note:
If VCS Phone is set as the audio output device manually or automatically, the audio input device
must be VCS Phone or VCS Phone+Wireless Microphone.
Related information
Audio Input Type
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