Hi, I finally figured out why my echo cancellation did NOT work. Because I used kAudioUnitSubType_RemoteIO instead of kAudioUnitSubType_VoiceProcessingIO. When switch back to kAudioUnitSubType_VoiceProcessingIO echo just disappeared! The pj2.2 code was correctly set componentSubType to kAudioUnitSubType_VoiceProcessingIO and I forgot why I changed it to kAudioUnitSubType_RemoteIO. Kinda embarrassed to admit that :$ But I hope my experience benefit others. Qiulang On 1/16/14, 4:24 PM, qiulang wrote: > Hi, > > I further debug this issue and found an interesting problem. So if > both sides use pjsip 2.2 then echo cancellation does not work. If both > sides use pjsip 2.1 echo cancellation work well. > And if one side use 2.1 and the other use 2.2 then echo cancellation > only work on 2.2 side !! > > So any advice how I can fix the issue ? > > Qiulang > > > > > On 1/16/14, 12:25 PM, qiulang wrote: >> Sorry I meant when called party switching a voice call to >> speakerphone I can hear my echo clearly. >> >> On 1/16/14, 10:37 AM, ? ? wrote: >>> Hi, >>> >>> I already used pjsip 2.2 (to incorporate #1705 fix), but the echo >>> was still very noticeable. When switching a voice call to >>> speakerphone I can hear my echo clearly. Is it because I use am-nb >>> codec and #1705 fix does not work well or for other reason ? >>> >>> And I saw there is a pjsip-iphone-audio-driver also for echo >>> cancellation purpose. Has anyone had any experience with that ? Can >>> it work with latest pjsip code ? >>> >>> Thanks >>> >>> Qiulang >>> >>> >>> >>> _______________________________________________ >>> Visit our blog: http://blog.pjsip.org >>> >>> pjsip mailing list >>> pjsip at lists.pjsip.org >>> http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org >>> >> >> >> _______________________________________________ >> Visit our blog: http://blog.pjsip.org >> >> pjsip mailing list >> pjsip at lists.pjsip.org >> http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org > > > _______________________________________________ > Visit our blog: http://blog.pjsip.org > > pjsip mailing list > pjsip at lists.pjsip.org > http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org
