How to eliminate acoustic echo from server side(FreeSwitch)
In the multi-party conference, because some termianl phone does not process echo, which causes the call have echo, so SERVER side needs to do echo processing. How to eliminate echo in this scenario? Do I need to add hareware device? If I want to implement it using software competely, what kind of open source echo library can be used? Does SPEEX work in Server Side? So many VIOP termianl use SPEEX, how to use it in the server side? Processing echo in server side should be different from client side, there are some complicated secnarios shuch as network delay and package lost, how to deal with these? Any advice will be appriciated.
On Sun, May 8, 2011 at 9:12 PM, vivid <vivid333@163.com> wrote:
In the multi-party conference, because some termianl phone does not process echo, which causes the call have echo, so SERVER side needs to do echo processing. How to eliminate echo in this scenario?
Before you can really address echo issues, you need to have a good understanding of the source. We really don't have enough information to work with here. As you must already know, echo can be tricky. I'd recommend you try to 1) find the source and eliminate it if you can. 2) Try to solve it with the right hardware offering. 3) If all else fails, you'll have to do a lot of reading and get your head wrapped around the problem. Good luck, Gabe
vivid333 wrote:
In the multi-party conference, because some termianl phone does not process echo, which causes the call have echo, so SERVER side needs to do echo processing. How to eliminate echo in this scenario?
This sounded like an acoustic echo. If so, the best way to eliminate the echo is to reduce the sensitivity of miccrophone while reducing the volume on speaker to a certain level so that the microphone won't be able to pick up the signals from speaker(s). ----- FreeSWITCH hosted on a Seagate DockStar with OpenWRT. -- View this message in context: http://freeswitch-users.2379917.n2.nabble.com/How-to-eliminate-acoustic-echo... Sent from the freeswitch-users mailing list archive at Nabble.com.
participants (3)
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Gabriel Gunderson
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mazilo
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vivid