Audio
Problems
Due to the nature of humans, we like to
fidget with things, and this is where most of lifes' problems occur.
First
thing to do is make sure that your audio levels are going out at proper levels,
each room in CMDLN has a meter indicating outgoing audio levels, and almost all
rooms have incoming meters. Make sure that when people are talking, at about
arms length from the microphone, that the meter is "bouncing" the
amber light on and off. Having a red light or two lighting up once in awhile is
OK. The problem is when there is a constant red light, this indicates that the
audio levels are too high.
The top row of lights indicates the incoming
audio levels from the remote sites, and the bottom row indicates the outgoing
levels from the microphones of your room.
Incoming audio mixer, use this to adjust
incoming audio levels from the remote sites
Attempting
to solve a Point to Point connection that has audio problems.
Step 1 Turn all dials pertaining to audio to the setting marked by the
technician, typically it is a white mark that must be pointing up.
Does the audio problem go away? No, move to
step 2
Step 2 Try to train the room, by pressing "4-wire video" and
"Telephone" on the Gentner AVT-700 or 724 echo cancellor remote
control or on the device itself. This will create a noise that sounds like
static from a TV. This will continue for about 25 seconds. This is teaching the
echo cancellor what the acoustics of the room are so that it can adjust itself.
You cannot train a room too much
Does the audio problem go away? No, move to
step 3
Step 3 Press "4-wire video" on the remote control for the Gentner
echo cancellor, until the light above the button turns off and the light above
the "privacy" button turns on. This shuts off the audio that is
coming from the remote site. If the audio problem goes away, most likely the
problem is at the remote site. If the audio problem continues, call the Network
operations center (320-529-1515)
Attempting
to solve a Multi-Point connection that has audio problems using a Gentner
Echo Canceller
Step 1 Turn all dials pertaining to audio to the setting marked by the
technician, typically it is a white mark that must be pointing up.
Does the audio problem go away? No, move to
step 2
Step 2 to train the room, by pressing "4-wire video" and
"Telephone" on the Gentner AVT-700 or 724 echo cancellor remote
control or on the device itself. This will create a noise that sounds like
static from a TV. This will continue for about 25 seconds. This is teaching the
echo cancellor what the acoustics of the room are so that it can adjust itself.
You cannot train a room too much
Does the audio problem go away? No, move to
step 3
Step 3 Press "4-wire video" on the remote control for the Gentner
echo cancellor, until the light above the button turns off and the light above
the "privacy" button turns on. This shuts off the audio that is
coming from the remote site. If the audio problem goes away, most likely the
problem is at the remote site, or move onto step 4
Step4 If you are hearing yourself coming back to you through the speakers,
this is called echo. Have ALL remote sites "Re-Train" their rooms.
After all sites have done so, and there is
still echo, MUTE each remote site one by one to find out which site has the
echo cancellor problem. Have that site re-train again.
If there is still echo, have that site turn
down their incoming volume levels from your site.
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