[andrew@gardiner ~]$ fuser -av /dev/snd/*
                     USER        PID ACCESS COMMAND
/dev/snd/by-id:
/dev/snd/by-path:
/dev/snd/controlC0:
/dev/snd/controlC1:  andrew     3227 F.... pulseaudio
/dev/snd/hwC0D0:
/dev/snd/hwC0D1:
/dev/snd/pcmC0D0c:
/dev/snd/pcmC0D0p:
/dev/snd/pcmC0D2c:
/dev/snd/pcmC1D0c:   andrew     3227 F...m pulseaudio
/dev/snd/pcmC1D0p:   andrew     6471 F...m mplayer
/dev/snd/pcmC1D1c:
/dev/snd/pcmC1D1p:   andrew     3227 F...m pulseaudio
/dev/snd/pcmC1D2p:
/dev/snd/seq:
/dev/snd/timer:      andrew     6471 f.... mplayer