Hi Benny, Sorry for the slow reply - I'm new to mailing lists and had email settings wrong (and/or new email server had teething trouble). I have got past the crashing stage now - changed the alsa config to point at hw instead of a plug and using native toolchain to build! - but was wondering if you or anyone can help me get a bit further. If I run pjsua with ec-tail=0, then do cc 0 0, I get audio, but with a fast 'ripple' over the top. If I run it with ec-tail=0 and --stereo, then the 'ripple' is a lot louder. By 'ripple' I mean a continuous clicking, repeated at about ~5-10Hz. This sounds a little like the description of bursting on the website, could this be it? I can play back and record sound fine using samples/auddemo. Also, if I use samples/simpleua I can get very good audio going from the board to the external endpoint, but I don't get any sound back from the endpoint. Thanks for any help, John

Hi John, Just recalled this, both auddemo and simpleua aren't using resampler, perhaps you could check if this resample bug, ticket #766, was the ripple source. You could check this by forcing pjsua to use a specified clock rate (see --clock-rate option), and use only codecs with such clock rate. BR, nanang On Tue, Dec 1, 2009 at 10:05 PM, John Martindale <jm@practicalcontrol.com> wrote: > Hi Benny, > > Sorry for the slow reply - I'm new to mailing lists and had email settings > wrong (and/or new email server had teething trouble). > > I have got past the crashing stage now - changed the alsa config to point at > hw instead of a plug and using native toolchain to build! - but was > wondering if you or anyone can help me get a bit further. > > If I run pjsua with ec-tail=0, then do cc 0 0, I get audio, but with a fast > 'ripple' over the top. If I run it with ec-tail=0 and --stereo, then the > 'ripple' is a lot louder. By 'ripple' I mean a continuous clicking, repeated > at about ~5-10Hz. This sounds a little like the description of bursting on > the website, could this be it? > I can play back and record sound fine using samples/auddemo. Also, if I use > samples/simpleua I can get very good audio going from the board to the > external endpoint, but I don't get any sound back from the endpoint. > > Thanks for any help, > John > > _______________________________________________ > Visit our blog: http://blog.pjsip.org > > pjsip mailing list > pjsip@lists.pjsip.org > http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org >