Re: Need help: configure dmix with 2 sound cards

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On 6/15/07, Daniel O'Neill <prosolutions@xxxxxxx> wrote:
> To test I run aplay -D plug:dmix -D hw:1,0 /usr/share/sounds/alsa/Front_Center.wav from 2 different terminals, but the second instance of it fails with the error "aplay: main:545: audio open error: Device or resource busy"

Wrong aplay syntax and broken .asoundrc.

First you have defined pcm.internal and pcm.usb-audio twice - once as
an HW device and once as a dmix device.  Remove these stanzas:

pcm.internal {
       type hw
       card 0
}

pcm.usb-audio {
       type hw
       card 1
}

Then try:

aplay -Dusb-audio file.wav

from 2 terminals.

Also, there's no need to configure dmix for the internal card, ALSA
should do it automatically if you use the "default" device (aplay
-Ddefault file.wav or just aplay file.wav).

Lee

Lee

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