To all:
I am having an echo problem with X-Lite and iaxComm. I am using the monitor speakers and a desktop microphone. My problem is that the sound from the speakers is repeated by the microphone causing an echo that is annoying. Is this correctable? I have searched throught this archives and played with various settings but have not been able to fix this. I have purchased a couple if different microphones that I thought may cure this problem, but nothing changed. Is this just simply a bad chioce and I need to use a headset rather than an open speaker microphone setup?
Gerald,
What you're experiencing is a feedback loop, e.g: sound emanates from speakers -> picked up by microphone -> fed through speakers -> picked up by microphone -> repeat ad nauseum. It's nothing really specific to Asterisk or softphones, rather more of a natural audio phenomenon.
You can minimize the effect through a couple of means:
1. purchase a microphone that has a unidirectional polar pattern, which can reduce the amount of sound it picks up from sources physically behind itself;
2. reposition your mic and speakers in such a way that the mic picks up as little as possible from the speakers;
3. fiddle with the speaker volume and mic gain
#1 might be more costly than getting a cheap headset mic, while #2 and #3 would be too troublesome as it would involve a lot of trial and error and fudging around.
all in all you'd be better of getting the headset mic.
flynn
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