Re: [Alsa-user] Still problems with multichannel sound

cyberpro Mon, 22 Mar 2004 20:28:37 -0800

Test this config (it works for me). With this config, you must use /dev/dsp0 as your hw:0,0. Maybe in your config, the error is that you haven't configurated /dev/dep1 as hw:0,1 (I think hw:0,1 is the S/PDIF soutput).

### .asoundrc for intel8x0

pcm.intel8x0-hw {
type hw
card 0
}

pcm.dsp0 {
   type plug
   slave.pcm "intel8x0"
}

pcm.dsp1 {
   type plug
   slave.pcm "intel8x0"
}

pcm.dsp {
   type plug
   slave.pcm "intel8x0"
}

pcm.!default {
type plug
slave.pcm "intel8x0"
}

pcm.intel8x0 {
type dmix
ipc_key 1234
slave {
pcm "hw:0,0"
period_time 0
period_size 1024
buffer_size 32768
}
}

ctl.intel8x0-hw {
type hw
card 0
}

--------------------------------------------------------------------------------
wim delvaux wrote:

Hi all,

I stil am unable to use the mutlichannel possibilities. The following is my .asoundrc file
pcm.dsp0 {
   type dmix
   ipc_key 1024          # must be unique!
   slave {
       pcm "hw:0,0"      # you cannot use a "plug" device here, darn.
       period_time 0
       period_size 1024  # must be power of 2
       buffer_size 8192  # dito. It
       rate 44100
       #format "S32_LE"
       #periods 128      # dito.
       #rate 8000        # with rate 8000 you *will* hear,
                         # if ossmix is used :)
   }
}
pcm.dsp1 {
   type dmix
   ipc_key 1026          # must be unique!
   slave {
       pcm "hw:0,1"      # you cannot use a "plug" device here, darn.
       period_time 0
       period_size 1024  # must be power of 2
       buffer_size 8192  # dito. It
       rate 44100
       #format "S32_LE"
       #periods 128      # dito.
       #rate 8000        # with rate 8000 you *will* hear,
                         # if ossmix is used :)
   }
}
pcm.intel8x0 {
   type hw
   card 0
}
ctl.intel8x0 {
   type hw
   card 0
}
If I try to play sound using alsaplayer I get

[EMAIL PROTECTED]:.../u19809$ alsaplayer --device "hw:0,1" Snd.mp3 ALSA lib pcm_hw.c:1056:(snd_pcm_hw_open) open /dev/snd/pcmC0D1p failed: No such device snd_pcm_open: No such device (hw:0,1) Failed to initialize plugin! Failed to register plugin: /usr/lib/alsaplayer/output/libalsa_out.so Failed to load output plugin "alsa". Trying defaults. ALSA lib pcm_hw.c:1056:(snd_pcm_hw_open) open /dev/snd/pcmC0D1p failed: No such device snd_pcm_open: No such device (hw:0,1) Failed to initialize plugin! /usr/lib/alsaplayer/output/libalsa_out.so failed to load error opening /dev/dsp Failed to initialize plugin! /usr/lib/alsaplayer/output/liboss_out.so failed to load NOTE: THIS IS THE NULL PLUGIN. YOU WILL NOT HEAR SOUND!!

But ...

[EMAIL PROTECTED]:.../u19809$ alsaplayer --device "hw:0,0" Snd.mp3

works ...

Please advice ...

W
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Re: [Alsa-user] Still problems with multichannel sound

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