Hi.
ALSA defaults to everything muted and all volumes at 0. You could just do this in alsamixer.
If you mean how do you reset ALSA to some default values that you've set, then use alsamixer to set the volumes and muting to what you want, then do 'alsactl store'. To restore ALSA to the values you've just stored, do 'alsactl restore'.
Dave
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