$ ls -l /dev/sound
total 0
crw-rw---- 1 root audio 14, 12 Nov  9 08:50 adsp
crw-rw---- 1 root audio 14,  4 Nov  9 08:50 audio
crw-rw---- 1 root audio 14, 20 Nov  9 08:50 audio1
crw-rw---- 1 root audio 14,  3 Nov  9 08:50 dsp
crw-rw---- 1 root audio 14, 19 Nov  9 08:50 dsp1
crw-rw---- 1 root audio 14,  0 Nov  9 08:50 mixer
crw-rw---- 1 root audio 14, 16 Nov  9 08:50 mixer1
crw-rw---- 1 root audio 14,  1 Nov  9 08:50 sequencer
crw-rw---- 1 root audio 14,  8 Nov  9 08:50 sequencer2