Polycom 1 manual Audio Meters, StereoSurround Settings

Administrator’s Guide for Polycom HDX Systems

5.Select and enter these settings on the VCR/DVD screen:

Setting	Description
Line In Level	Sets the volume level for audio input 3. The default setting
	of Auto configures the system for automatic gain control.
Line Out Level	Sets the volume level for audio output 3.
VCR/DVD Audio	Allows you to record a call using one VCR or DVD, while
Out Always On	playing content into the call from a second VCR or DVD.
	Do not select this setting if you have only one VCR or DVD
	player connected. If this setting is disabled, the VCR audio
	output is disabled when VCR is the selected camera
	source.
Line In Level	Lets you see the peak input signal level present at audio
(dB meter)	input 3.
Line Out Level	Lets you see the peak output signal level present at audio
(dB meter)	output 3.

6.Select and enter these settings on the Audio Levels screen:

Setting	Description
Master Audio	Sets the volume level for audio from the far site.
Volume
Bass	Sets the volume level for the low frequencies without
	changing the master audio volume.
Treble	Sets the volume level for the high frequencies without
	changing the master audio volume.

Audio Meters

The audio meters in the user interface indicate peak signal levels. Set signal levels so that you see peaks between +3 dB and +7 dB with normal speech and program material. Occasional peaks of +12 dB to +16 dB with loud transient noises are acceptable. If you see +20 on the audio meter, the audio signal is 0 dBFS and the audio might be distorted.

StereoSurround Settings

To send or receive stereo audio, make sure your Polycom HDX system equipment is set up as described in Connecting Polycom Microphones on page 4-1and Connecting Audio Output on page 4-4. Then configure the system to use Polycom StereoSurround, test the system configuration, and place a test call.

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