It's possible to boost your Mac's audio beyond 100% (with the help of some third party apps), but what if your audio dips in the opposite direction? What do you do if the sound suddenly stops coming ...
Ensure that your Mac's volume hasn't been muted unintentionally. Press the volume up key (F12) to turn up the sound level. If the volume is low, press the F12 key repeatedly to increase it. For more ...