Re: [GnomeMeeting-list] Enforcing half-duplex?

[Conrad Beckert <conrad_b yahoo com>]

Pardon for jumping in ;-)
>>Something that mutes the local speakers if the level
on the mic is above a given level with respect to
what's received from peer and mutes the mic
otherwise?<<
It should be possible to cancel the echos: As the PC
"knows" what it sent to the speakers it should be able
to subtract exactly that from the stream it recieves
from the microphone. (delayed a couple of microseconds
- the time the sound travels from the speakers to the
microphone + signal delay in the sound card) 

Doesn't Gnomemeeting, or OpenH323 rather, already have
such a feature? I have no problems with feedback
interference. 


Conrad

PS: Another solution is get a decent microphone (or a
couple of them if it's a meeting room) with respective
acoustic characteristics and keep them out of the beam
of the speaker. 
CB



	
		
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