bobby@bobby-ubuntu:~/.kde/share/apps/amarok$ lsof /dev/snd/* /dev/dsp*
COMMAND    PID  USER   FD   TYPE DEVICE SIZE NODE NAME
mixer_app 4962 bobby   17u   CHR  116,7      8129 /dev/snd/controlC0
firefox-b 5094 bobby  mem    CHR  116,5      8111 /dev/snd/pcmC0D0p
firefox-b 5094 bobby   84r   CHR  116,2      7773 /dev/snd/timer
firefox-b 5094 bobby   85u   CHR  116,5      8111 /dev/snd/pcmC0D0p
artsd     8262 bobby  mem    CHR  116,5      8111 /dev/snd/pcmC0D0p
artsd     8262 bobby   11r   CHR  116,2      7773 /dev/snd/timer
artsd     8262 bobby   12u   CHR  116,5      8111 /dev/snd/pcmC0D0p
bobby@bobby-ubuntu:~/.kde/share/apps/amarok$