[GnomeMeeting-list] Horrible 2-second echo on SuSE-based system

[Alan Sill <Alan Sill ttu edu>]

Hi,

We have a gnomemeeting setup, the stock out of the box installation 
that came with SuSE Linux (8 I believe, a uname -a returns

Linux (nodename) 2.4.19-4GB #1 Fri Nov 8 14:37:03 PST 2002 i686 unknown

It was working perfectly for us for some time, but lately someone 
messed with the sound settings, and now it has a horrible 2-second echo 
for all remotely connected participants unless we click the audio mute 
button on the GM control panel (so that the outgoing audio rate is set 
to zero).  Note that we do not hear this echo locally.

We have a hardware echo-cancelling mike hooked between the microphone 
inputs and speakers, as we always have, and have tried various settings 
of the internal GM echo cancellation with no luck at suppressing the 
echo for remote users.  That echo goes away as I said if we suppress 
our own audio transmission.

The odd thing is that it worked fine before, and we have not upgraded 
or altered the GM setup or operating system specifically to avoid 
messing up the GM setup, as we use this system essentially for 
videoconferencing only.  I am wondering what options we should have 
turned on or off, muted, etc. under the all-purpose "Volume 
Control"panel SuSE provides that can be reached by right-clicking on 
the menu-bar volume symbol, or other checks we can make from the 
command line for example to see what can be done to suppress this echo. 
 Help from this list would be appreciated.

Thanks,
Alan