I know at one point during testing I was able to have 2 simultaneous
.wav files play back through external USB speakers, but for whatever
reason dmix appears to just not be happening when I use audio/video apps
like xmms, amarok, vlc, or mplayer. Always the second app will complain
that it cannot access the sound device.
This is the aplay -l listing on the machine:
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: AD198x Analog [AD198x Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: Intel [HDA Intel], device 1: AD198x Digital [AD198x Digital]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: System [USB Audio System], device 0: USB Audio [USB Audio]
Subdevices: 0/1
Subdevice #0: subdevice #0
This is my ~/.asoundrc. I commented out pcm.internal since my
understanding was that dmix is supposed to already be enabled by default, and I
was getting an error about dmix not supporting input when trying to use
the internal card with skype:
# pcm.internal {
# type dmix
# ipc_key 1234
# slave {
# pcm "hw:0,0"
# }
# bindings {
# 0 0
# 1 1
# }
# }
#
# ctl.internal {
# type hw
# card 0
# }
pcm.usb-audio {
type dmix
ipc_key 4321
slave {
pcm "hw:1,0"
}
bindings {
0 0
1 1
}
}
ctl.usb-audio {
type hw
card 1
}
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