Jkx@home » soundcard http://www.larsen-b.com Titanium Exposé Wed, 20 May 2026 16:33:52 +0000 en-US hourly 1 http://wordpress.org/?v=3.5 Playing music on soundcard without locking http://www.larsen-b.com/Article/194.html http://www.larsen-b.com/Article/194.html#comments Wed, 09 Feb 2005 09:06:24 +0000 admin Continue reading →]]> Why this soundcard allow me to play 2 mp3 at the same time while this doesn’t.. Hum good question. In fact to support this kind of stuff the sound card should support have some sub-device, to be sure .. simply aplay -l

Here on my shuttle .. not working

aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: IXP [ATI IXP], device 0: ATI IXP AC97 [ATI IXP AC97]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: IXP [ATI IXP], device 1: ATI IXP IEC958 [ATI IXP IEC958 (AC97)]
Subdevices: 1/1
Subdevice #0: subdevice #0

Here on another box (VIA C3 based)

aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: V8235 [VIA 8235], device 0: VIA 8235 [VIA 8235]
Subdevices: 4/4
Subdevice #0: subdevice #0
Subdevice #1: subdevice #1
Subdevice #2: subdevice #2
Subdevice #3: subdevice #3
card 0: V8235 [VIA 8235], device 1: VIA 8235 [VIA 8235]
Subdevices: 1/1
Subdevice #0: subdevice #0

So yes the C3 can play 4 stream at the same time, while the AC97 doesn’t.

Another way to do this is to use software mixing

Update:

To use the software mix in Alsa: simply change the pcm.default to pcm.dmix

#pcm.default cards.pcm.default
pcm.default pcm.dmix
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