[Alsa-user] How to control volume seperately when using dmix plugin

[Xiangrong Fu <xr...@us...>]

I have successfully make multiple applications(xmms,mplayer...) use the
same soundcard using dmix plugin. It performs well. But the problem now
is when i tune down the volume of one app using its own volume
controler, all others' are down too; when one mutes , all others mute do
too. Is this a bug or anyone could help me? thanks.
//tea all
content of my .asoundrc

pcm.!default {
type plug
slave.pcm "dmixer"
}

pcm.dsp0 {
type plug
slave.pcm "dmixer"
}

pcm.dmixer {
type dmix
ipc_key 1024
slave {
pcm "hw:0,0"
period_time 0
period_size 1024
buffer_size 32768
rate 44100
}
bindings {
0 0
1 1
}
}

ctl.mixer0 {
type hw
card 0
}

-- 

傅向荣
Xiangrong