Polycom HDX Series Administrator's Manual page 69

3. Select and enter these settings on the Audio Input screen:
Setting
Input Type
Input Type Level
Echo Canceller
Content Input Level
Enable Phantom
Power
Input Type
(dB meter)
Content Input
(dB meter)
4. Select and enter these settings on the Audio Output screen:
Setting
Line Output Mode
Level
Line Out (dB meter)
Description
Specifies the type of equipment that is connected to audio
input 1. Choose Line Input unless you have connected
microphones that do not have an external preamplifier.
Choose Microphone for most wired microphones.
Sets the volume level for audio input 1.
Lets you specify whether to use the system's built-in echo
canceller with audio input 1.
Do not enable this option if you have connected a Polycom
Vortex mixer.
Note: This setting only affects audio input 1. Typically, you
should enable this setting only if a microphone is
connected to audio input 1. Microphones connected to the
Polycom microphone input are automatically echo
cancelled.
Specifies the volume level for audio input 4.
Allows the system to supply power to microphones
connected directly to the audio input.
Note: This selection is only available when you set Input
Type to Microphone.
Lets you see the peak input signal level present at audio
input 1.
Lets you see the peak input signal level present at audio
input 4.
Description
Specifies whether volume for a device connected to the
audio line out connectors is variable or fixed.
• Variable—Allows users to set the volume with the
remote control.
• Fixed—Sets the volume to the Audio Level specified in
the system interface.
Note: When this setting is set to Fixed, the remote
control's volume adjustment does not affect the output
level of audio output 1.
Sets the volume level for audio output 1 when Line
Output Mode is set to Fixed.
Lets you see the peak output signal level present at audio
output 1.
Microphones and Speakers
4 - 7