Is it possible to mute your computer through the command-line interface? [duplicate]
It isn't possible to mute it directly through the command line, no.
But you could use a command line utility such as NirCmd to achieve the same functionality.
Simply running nircmd.exe mutesysvolume 1 from cmd would mute the audio. E.g. you could easily do this through a batch script, if you're trying to do several things at once.