Hello,
I am using a Turtle Beach Audio Advantage Micro
(http://www.turtlebeach.com/site/products/audioadv/micro/) with the
snd-usb-audio driver (alsa 1.0.13). The card works (my thanks to the devs!),
but without a asound.conf file dmix does not work: when trying to run
$ aplay test.wav
concurrently on two xterms the second one produces a
aplay: main:550: audio open error: Device or resource busy
error message. At least here dmix is not working out of the box.
For other people out there with the same problem, at least on my system this
problem was fixed by using the following settings which I found online
pcm.!default {
type plug
slave {pcm "general_sound"}
}
pcm.general_sound {
type dmix
ipc_key 1024
slave {
pcm "hw:0,0"
period_time 0
period_size 1024
buffer_size 8192
periods 128
rate 44100
}
bindings {
0 0
1 1
}
ctl.general_sound {type hw card 0}
One just needs to make sure that the the USB card gets index 0 for this to
work (Or change "hw:0,0" to "hw:1,0" and "card 0" to "card 1" in the snippet
above).
Best
Michael
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