On Sun, 1 Feb 2004 13:48:38 +0100
Florian Schmidt <[EMAIL PROTECTED]> wrote:
problem persists with alsa-1.0.2
Flo
>
> Ok, i have a hw mixing capable card, but i do have interest in getting
> the dmix/dsnoop/asym thing working. Well, i defined a "pasymed" device
> like this:
>
>
> ------.asoundrc start
> #asym fun start here. we define one pcm device called "dmixed"
> pcm.dmixed {
> ipc_key 1025
> type dmix
> slave.pcm "hw:0,0"
> }
>
> #one called "dsnooped" for capturing
> pcm.dsnooped {
> ipc_key 1026
> type dsnoop
> slave.pcm "hw:0,0"
> }
>
> #and this is the real magic
> pcm.asymed {
> type asym
> playback.pcm "dmixed"
> capture.pcm "dsnooped"
> }
>
> #a quick plug plugin for above device to do the converting magic
> pcm.pasymed {
> type plug
> slave.pcm "asymed"
> }
>
> #a ctl device to keep xmms happy
> ctl.pasymed {
> type hw
> card 0
> }
> ------.asoundrc end
>
> Now i should be able to test that device "pasymed" with the aplay
> command:
>
> aplay -D pasymed foo.wav
>
> This command does not give any error messages on my machine. It also
> does not produce any sound. The soundfile is rather short and aplay
> exits fine after the duration of the soundfile. So i figure it is
> played back correctly. The question is though: Where is it played to?
> I have three playback devices on my cs46xx soundcard:
>
> [EMAIL PROTECTED]:~$ cat /proc/asound/devices
> 1: : sequencer
> 0: [0- 0]: ctl
> 8: [0- 0]: raw midi
> 18: [0- 2]: digital audio playback
> 17: [0- 1]: digital audio playback
> 16: [0- 0]: digital audio playback
> 24: [0- 0]: digital audio capture
> 33: : timer
>
> But i have only one speaker pair connected to the soundcard outs. I
> just tested the two analoge outs [don't have any digital equipment for
> digital out]. The pasymed signal doesn't come out anywhere.. I think
> it's a dmix issue, because
>
> aplay -D plug:dmix foo.wav
>
> shows the exact same behaviour [no errors, no sound, normal
> termination after duration of soundfile].. dsnoop is behaving weirdly,
> too. I just recorded with
>
> arecord -D pasymed -t wav -f cd foo.wav
>
> and it records just a little chunk of audio repeated over and over. It
> seems to be the first period that is in the buffer after opening the
> device [for i get a file filled with silence when i start recording at
> a silent point]. I put up the .wav at
>
> http://mistatapas.ath.cx:8888/foo.wav
>
> I get the exact same result with
>
> aplay -D plug:dsnooped -t wav -f cd foo.wav
>
>
>
>
>
> Here's some more info about my setup:
>
> [EMAIL PROTECTED]:~$ uname -a
> Linux mango.fruits.de 2.4.22 #1 SMP Wed Nov 19 13:43:03 CET 2003 i686
> GNU/Linux
>
> [EMAIL PROTECTED]:~$ cat /proc/asound/version
> Advanced Linux Sound Architecture Driver Version 1.0.1.
> Compiled on Jan 22 2004 for kernel 2.4.22 (SMP) with versioned
> symbols.
>
> [EMAIL PROTECTED]:~$ cat /proc/asound/cards
> 0 [CS46xx ]: CS46xx - Sound Fusion CS46xx
> Sound Fusion CS46xx at 0xcffef000/0xcfe00000, irq
> 5
>
>
>
>
> Flo
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