pcm.hda-intel-hw { type hw card 0 } pcm.hda-intel { type dmix ipc_key 1234 ipc_perm 0660 slave { pcm "hw:0,0" channels 2 period_size 1024 buffer_size 4096 rate 44100 period_time 0 } bindings { 0 0 1 1 } } ctl.hda-intel-hw { type hw card 0 } pcm.usb-audio-hw { type hw card 1 } pcm.usb-audio { type dmix ipc_key 4321 ipc_perm 0660 slave { pcm "hw:1,0" channels 2 period_size 1024 buffer_size 4096 rate 44100 period_time 0 } bindings { 0 0 1 1 } } ctl.usb-audio-hw { type hw card 1 } pcm.!default { type plug slave.pcm "usb-audio" } ctl.!default { type hw card "1" }