On Sun, Aug 06, 2006 at 08:38:53PM +0200, Markus Rechberger wrote: > I did some more investigation uppon this > > .buffer_bytes_max = (32*1024), > this one seems to be clear now, I set it to the max > transfer_buffer_size of 1 URB > > .period_bytes_min = 64, > this one not .. in my case I set it to transfer_buffer_size/2 > > .period_bytes_max = 2048, > this one is again transfer_buffer > > .periods_min = 1, > I set this one to 2 (people in IRC cleared me up about this one) > > .periods_max = 255, > no idea again.. > > So what I get now is: > http://lost-souls.mercuryserver.de/files/data/test.wav.mp3 > > and a buffer underrun regarding aplay > aplay -D hw:2,1 5_5_2006__07_00_59.wav > Playing WAVE '5_5_2006__07_00_59.wav' : Signed 16 bit Little Endian, > Rate 9600 Hz, Mono > underrun!!! (at least 0,307 ms long) > underrun!!! (at least 0,285 ms long) > underrun!!! (at least 0,295 ms long) > underrun!!! (at least 0,279 ms long) > underrun!!! (at least 0,298 ms long) > underrun!!! (at least 0,287 ms long) > > the strange thing here is the DTMF tones in the background sound fine, > so I don't really recognize an underrun when playing the file just > that strange noise which is constant all the time.. > > following is what my debug prints in dmesg: > I'm sure the PCM PLAYBACK TRIGGER STOP! are caused by the buffer > underrun which is reported by aplay.. > The outgoing dataformat is 9600hz, S16_LE, mono .. I'm having trouble with ALSA intermittently getting into a state where the trigger is being repeatedly called for start then stop and can only sometimes get out of it. I will post a seperate report on this later. -- Ben Q: What's a light-year? A: One-third less calories than a regular year. ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys -- and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-devel
