Eliot Blennerhassett a écrit :
What I'm looking at is to be able to play differents sounds to different outputs.
http://alsa.opensrc.org/index.php/.asoundrc#Splitting_front_and_rear_outputs

yes ! thanks for your help

using this recipe, I managed to play on the front OR the rear output. Now i'm trying to play on the "center_lfe" or "side" output.

I tried expanding the recipe like this :

# front output (found in the recipe)
pcm.out12 {
   type plug
   slave {
       pcm "dshare"
       channels 4
   }
   ttable.0.0 1
   ttable.1.1 1
}

# rear output (found in the recipe)
pcm.out34 {
   type plug
   slave {
       pcm "dshare"
       channels 4
   }
   ttable.0.2 1
   ttable.1.3 1
}

# center_lfe output (my try)
pcm.out56 {
   type plug
   slave {
       pcm "dshare"
       channels 4
   }
   ttable.0.4 1
   ttable.1.5 1
}

# side output (my try)
pcm.out78 {
   type plug
   slave {
       pcm "dshare"
       channels 4
   }
   ttable.0.6 1
   ttable.1.7 1
}

but i have no sound and aplay just show 4 lines in the transformation table :

# cat /root/temp.wav | aplay -vD out56
Playing WAVE 'stdin' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo
Plug PCM: Route conversion PCM (sformat=S32_LE)
 Transformation table:
   0 <- none
   1 <- none
   2 <- none
   3 <- none
Its setup is:
 stream       : PLAYBACK
[...]


I now have to find how to setup the 8 outputs...

thanks for your help


--
Ghislain LEVEQUE
VegaFrance
http://www.vegafrance.fr
05 34 56 99 78

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