[LAU] alsa problem changed

Julien Claassen julien at c-lab.de
Thu Dec 6 16:20:32 EST 2007


Hi everyone!
  OK, I solved my "plugindir/libasound_module_pcm_jack.so: no such file or 
directory" problem. It was a bug in alsa-lib 1.0.14, which was obviously fixed 
in 1.0.14a.
  But now I try to use my jack plugin and get a smple format problem.
  I start jackd like this:
jackd -R -d alsa -d hw:1,0 -r 48000 -p 128 -H -M -z shaped
  then I start aplay (both with 44100/2ch/16bin and 48000/2ch/16bit)
and get:
aplay: set_params:900: Sample format non available
  What's wrong? I have a delta 1010LT, so a lot more channels, and jack 
internally uses 32bit floats, but my jack-plugin is configured for stereo and 
the pcm.!default wraps around it like:
pcm.!default {
  type plug
  slave { pcm "jack" }
}
  So there should be some conversions. Any ideas on this? Please?
  Kindest regards
       Julien

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