For the times you know you should be able to

  • switch between internal and USB Mic
  • or between Built-in Speakers and Headphones
  • or change the input or output volume

...but you can't.

Kill CoreAudio!

sudo killall -SIGTERM coreaudiod

Or, if that doesn't work... SIGKILL!

sudo killall -SIGKILL coreaudiod

Also available via Activity Monitor.app, just search coreaudio!


By AJ ONeal

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