[PD-dev] 0.39-test6 ALSA audio broken?

Claude Heiland-Allen claudiusmaximus at goto10.org
Fri Aug 26 02:27:45 CEST 2005


Hi Miller, and others,

With ALSA audio output I get:

tried but couldn't sync A/D/A
^^^ repeated many times

audio I/O error history:
seconds ago     error type
      3.00       A/D/A sync
      3.00       DAC blocked
      3.00       A/D/A sync
      3.00       DAC blocked
      3.00       A/D/A sync
      3.00       DAC blocked
      3.00       A/D/A sync
      6.92       DAC blocked
      6.92       A/D/A sync
      6.92       DAC blocked
      6.92       A/D/A sync
      7.09       DAC blocked
      7.09       A/D/A sync
      7.09       DAC blocked
      7.09       A/D/A sync
      7.09       DAC blocked
      7.09       A/D/A sync
      7.09       DAC blocked
      7.09       A/D/A sync
      7.44       DAC blocked

I set the buffer size to as high as 500ms and still got >100ms audio 
dropouts every few seconds, which is obviously no good at all.

PortAudio with /dev/dsp works fine with the same settings, no dropouts 
at all, so I guess that's what I'll use for now.  I have yet to try 
JACK, and OSS didn't work at all (no devices to choose from, which is 
strange because PortAudio works fine with /dev/dsp)


Claude




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