Hello Tanu, Arun, can you please have a look at the patch proposed here: http://lists.freedesktop.org/archives/pulseaudio-discuss/2013-April/017090.html it fixes an error introduced with the patches to make the echo-canceller support different sample specs for play/rec/out streams it should be fixed in master and next; the error becomes apparent only if different sample specs used thanks, regards, p. -- Peter Meerwald +43-664-2444418 (mobile)