On Mon, 2011-07-25 at 15:21 +0000, Alexander E. Patrakov wrote: > ABDUL MOIZ wrote: > > > Hi, > > > > Thanks for the reply. > > > > Now I am able to run the pulseaudio daemon with echo cancel source > > and > > sinks without any problem on my ubuntu desktop system. Now I want to > > enable echo cancel module on my omap4 (PANDA) board. I followed the same > > steps as i have done for ubuntu desktop. Pulseaudio daemon is working > > fine but when i tried to load the Echo cancel module, the daemon is > > getting killed. > > Echo cancellation is a very cpu-intensive process (even on my Core i5) > that also involves floating-point operations. I think that omap4 is just > not powerful enough to do echo cancellation in software, and I guess > that's why your pulseaudio deamon is getting killed for running over the > CPU time limit. > > Could you try to verify this theory by uncommenting the "cpu-limit = no" > line in daemon.conf? This will lock up your omap4 board, though, if I > guessed the reason correctly. Worth a shot, but from what I know, the echo-cancel module actually works fine on Pandaboards -- doesn't even drive up CPU scaling. -- Arun
