On 7/16/07, Brian Gitonga Marete <[EMAIL PROTECTED]> wrote: > On Mon, 2007-07-16 at 18:48 +0400, Alexander Chemeris wrote: > > Have you compiled with Speex support enabled? > > Yes, but I have restricted the phone to use GSM only. Should I try Speex > for the codec?
No, you do not need. Speex is more then a codec - it have AGC, denoise, AEC, VAD and resampler in it. So it is used as an AEC in current sipXtapi. But it is not tunned to work, I think. I have not tried it, so could not say anything about it. Feel free to work on this, we'll be glad to see your patches, improving AEC quality. If you'll download sources of Speex, you'll find testecho.c and echo_diagnostic.m in them - they will help you. As a sidenote - speex have changed AEC API slightly from 1.2beta1 to 1.2beta2, so sipX code need to be updated to use recent API. Volunteers are wanted! -- Regards, Alexander Chemeris. SIPez LLC. SIP VoIP, IM and Presence Consulting http://www.SIPez.com tel: +1 (617) 273-4000 _______________________________________________ sipxtapi-dev mailing list [email protected] List Archive: http://list.sipfoundry.org/archive/sipxtapi-dev/
