alsa_amixer -c $c set Capture cap
alsa_amixer -c $c set PCM 100 unmute
alsa_amixer -c $c set SPO unmute
alsa_amixer -c $c set IEC958 on
alsa_amixer -c $c set Capture cap
alsa_amixer -c $c set PCM 100 unmute
alsa_amixer -c $c set SPO unmute
alsa_amixer -c $c set IEC958 on