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jiaxi
n00b
Joined: 25 Sep 2012
Posts: 30
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 Posted: Sun Apr 28, 2013 8:56 am Post subject: paplay+aplay make Device or resource busy[SOLVED] |
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ALSA and PA are in my system. And it is ok when using aplay or paplay alone.
1) i can hear music using the cmd: paplay 48.wav &.
2) i use aplay 16.wav to play another music.
3) i can get the error log.
/etc/asound.conf:
pcm.!default {
type plug
slave.pcm "dmixer"
}
pcm.dmixer {
type dmix
ipc_key 1026
slave {
pcm "hw:0,0"
rate 48000
period_size 800
buffer_size 3200
}
}
# paplay 48.wav &
# Home directory not accessible: Permission denied
# aplay 16.wav
ALSA lib pcm_dmix.c:1018:(snd_pcm_dmix_open) unable to open slave
aplay: main:696: audio open error: Device or resource busy
I think PA will use hw:0 as sink.So i can get resource busy log when us aplay to play another music using hw:0,0.
And my question can we set PA use "default" as sink?
Last edited by jiaxi on Thu May 02, 2013 2:24 am; edited 1 time in total |
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salahx
Guru
Joined: 12 Mar 2005
Posts: 530
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| Posted: Mon Apr 29, 2013 6:44 am Post subject: |
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In /etc/pulseuadio/default.pa there is a line (note it is probably commented out):
| Code: | | load-module module-alsa-sink |
One parameter called "device" (the value defaults to "default" if unspecified) if you want to manually specify a device:
| Code: | | load-module module-alsa-sink device=dmixer |
Other paramters are available too: see PulseAudio module documentation. |
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jiaxi
n00b
Joined: 25 Sep 2012
Posts: 30
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| Posted: Thu May 02, 2013 2:24 am Post subject: |
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| salahx wrote: | In /etc/pulseuadio/default.pa there is a line (note it is probably commented out):
| Code: | | load-module module-alsa-sink |
One parameter called "device" (the value defaults to "default" if unspecified) if you want to manually specify a device:
| Code: | | load-module module-alsa-sink device=dmixer |
Other paramters are available too: see PulseAudio module documentation. |
Thanks, It is OK using your configuration.
PulseAudio app will also use dmix to mixing with ALSA app.
So it is no advantage of pulseaudio in this case except all application is base on pulseaudio? |
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