sunclub ~ # lsof /dev/snd/*
COMMAND     PID  USER   FD   TYPE DEVICE SIZE NODE NAME
audacious  7758 zider    8u   CHR  116,0      6028 /dev/snd/controlC0
firefox-b 10811 zider  mem    CHR 116,16      5335 /dev/snd/pcmC0D0p
firefox-b 10811 zider   37u   CHR 116,16      5335 /dev/snd/pcmC0D0p