Not sure if this issue started with High Sierra or Sierra, but definitely have been coming across this issue more and more often.
Like it or not, FaceTime ducks the volume of every other source during a call. And sometimes, after clicking the hang up button, volumes are not restored back to normal.
Is there any way to force this back to normal? Restarting an audio service maybe? I'd prefer not to restart the whole system every time. Thank you.