USER        PID ACCESS COMMAND
/dev/snd/controlC2:  ingo       2586 F.... xfce4-volumed
                     ingo       2602 F.... pulseaudio
/dev/snd/controlC1:  ingo       2586 F.... xfce4-volumed
                     ingo       2602 F.... pulseaudio
/dev/snd/controlC0:  ingo       2586 F.... xfce4-volumed
                     ingo       2602 F.... pulseaudio