单音频输出到多设备配置文件

pcm.multi {
        type multi

        slaves.a.pcm "hw:0,0"
        slaves.a.channels 2
        slaves.b.pcm "hw:1,0"
        slaves.b.channels 2

        bindings.0.slave a
        bindings.0.channel 0
        bindings.1.slave a
        bindings.1.channel 1
        bindings.2.slave b
        bindings.2.channel 0
        bindings.3.slave b
        bindings.3.channel 1
}

pcm.asymed{
type asym
playback.pcm "multi"
capture.pcm "dsnoop_44100"
}

ctl.multi{
        type hw;
        card 0;
}

pcm.!default{
type plug
route_policy "average"
slave.pcm "asymed"
}
 

标签：输出,multi,slave,配置文件,音频,slaves,pcm,type,channel
来源： https://blog.csdn.net/c2h5oh2012/article/details/114837272