User`s guide

Microphones and Speakers
Polycom, Inc. 4–21
5 Test the speakers to check volume and verify that audio cables are
connected. If the system is in a call, the far site hears the tone.
Exchange the right and left speakers if they are reversed.
Adjust the volume control on your external audio amplifier so that the test
tone sounds as loud as a person speaking in the room. If you use a Sound
Pressure Level (SPL) meter, it should measure about 80-90 dBA in the
middle of the room.
To make a test call in stereo using the local interface, web interface, or remote
control:
>> Do one of the following:
— Select Polycom Austin Stereo from the directory Sample Sites group
in the local or web interface.
— Enter
stereo.polycom.com in the dialing field and press Call on
the remote control or keypad.
To make a test call in stereo using the Polycom Touch Control:
1 From the Polycom Touch Control Home screen, touch Place a Call.
2 Touch Favorites.
3 Select Polycom Austin Stereo.
The Polycom Austin Stereo site demonstrates the stereo feature with an
entertaining and informative presentation.
Polycom HDX System Settings for a Polycom Vortex Mixer
To configure a Polycom HDX 9000 series, Polycom HDX 8000 series, or Polycom
HDX 7000 series system to use a Polycom Vortex mixer:
1 (Polycom HDX 9000 series only) Do one of the following:
— In the local interface, go to System > Admin Settings >Audio >
Inputs/Outputs (select if necessary).
— In the web interface, go to Admin Settings >Audio.
a Set Input type to Line Input.
b Disable Echo Canceller.