Polycom VSX 3000 Administrator's Manual page 106

Administrator's Guide for the VSX Series
Configuring Microphones Connected to Balanced Audio Inputs on a VSX 8000
4 - 24
To configure the VSX system to use microphones connected directly to the RCA
audio inputs:
Go to this screen:
Audio Input
System > Admin Settings >
Audio > Audio Settings > Next
Audio Meter
System > Diagnostics > Audio
> Audio Meter
The Audio screen, where you choose Audio Settings or Stereo Settings, is not
present unless stereo is enabled.
In addition to the Polycom microphone or SoundStation VTX 1000 conference
phone, you can connect other powered microphones directly to the VSX 8000
system's balanced audio inputs.
To configure the VSX 8000 system to use microphones connected directly to the
balanced audio inputs:
Go to this screen:
Audio Input
System > Admin Settings >
Audio > Audio Settings > Next
Audio Meter
System > Diagnostics > Audio
> Audio Meter
The Audio screen, where you choose Audio Settings or Stereo Settings, is not
present unless stereo is enabled.
Configure these settings:
Configure Balanced In:
• Set Line Input to Audio Mixer. (except
VSX 7000s)
• Enable Echo Canceller.
• Adjust the audio Level if necessary. You can
test this setting using the Audio Meter.
Speak into the microphones that are connected to
the audio line inputs. The audio meter should
peak at about 10dB for normal speech.
Configure these settings:
Configure Balanced In:
• Set Input type to Microphone.
• Select Echo Canceller.
• Select Enable Phantom Power to supply
power to microphones.
• Adjust the audio Level if necessary. You can
test this setting using the Audio Meter.
Speak into the microphones that are connected to
the balanced audio inputs. The audio meter
should peak at about 10dB for normal speech.