Hello, I had 'resample-method' set to 'speex-float-1' when it was previously set to the default which I believe is 'speex-float-3'. I meant to set it to 'speex-float-10' to see if the "motor-boating" would go away...looks like I forgot the '0'. The wave files over SIP via Asterisk 11.4 now sound really smooth going from 44.1->8->44.1...maybe it was the up-sampling that was killing me. With a better re-sample algorithm the motor-boating appears to have disappeared with only a sacrifice of 15% CPU on the dual core Atom with which I am working. If this was indeed the problem, I am going to feel really stupid getting you guys involved. :-( Thanks for your prompt responses. Best Regards, Rob On Mon, Jun 24, 2013 at 3:25 PM, Thomas Martitz <kugel at rockbox.org> wrote: > Am 24.06.2013 21:03, schrieb Tanu Kaskinen: > > On Mon, 2013-06-24 at 11:36 -0400, Robert Krakora wrote: >> >>> Basically, the 300Hz tone "motor boats" when played over SIP via >>> Asterisk. >>> Every tone that previously played well over SIP via Asterisk then also >>> "motor boats". >>> >> (Please don't top-post.) >> >> If you record from the alsa sink while this motor-boating is happening, >> is the audio in the recorded file fine? You can record with for example >> this command: >> >> parecord --device=NAME_OF_THE_MONITOR_**SOURCE > ~/tmp/test.wav >> >> Replace NAME_OF_THE_MONITOR_SOURCE with the name of the monitor source. >> You can list the available sources with "pactl list sources short", >> hopefully you're able to figure out which of the sources is the correct >> one (it's one of those that end with ".monitor"). >> >> > > And if not you could feed the recorded file to paplay with different > sample rates to see if resampling isn't done correctly somewhere. > > Best regards > ______________________________**_________________ > pulseaudio-discuss mailing list > pulseaudio-discuss at lists.**freedesktop.org<pulseaudio-discuss at lists.freedesktop.org> > http://lists.freedesktop.org/**mailman/listinfo/pulseaudio-**discuss<http://lists.freedesktop.org/mailman/listinfo/pulseaudio-discuss> > -- Rob Krakora MessageNet Systems 101 East Carmel Dr. Suite 105 Carmel, IN 46032 (317)566-1677 Ext 212 (317)663-0808 Fax -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.freedesktop.org/archives/pulseaudio-discuss/attachments/20130624/504b5b2f/attachment-0001.html>