This was awesome. I had removed pulse-audio because it wasn’t playing nicely on my 64-bit machine when using Flash, VLC and Clementine and Skype and a whole bunch of other audio sources. I replaced it with ALSA which meant replacing the default volume control app in Linux Mint with QASMixer which meant my multimedia buttons no longer worked.
The alsa commands to use:
# mute/unmute amixer set Master toggle # volume up by roughly 10% amixer set Master 6+ # volume down by roughly 10% amixer set Master 6-
The adjustment is to the dB level, it isn’t by percentage.