How To Fix Sound Not Working On Mac. However if you have to reboot your Mac several times or repeatedly reset the Core Audio API to get your sound working you should probably take your computer in for a check-up. The volumesound settings or keys are not working.
For example try to play music from YouTube or iTunes. If none of the steps above work for you the next step is to contact Apple support and if possible make an appointment at the Genius Bar of an Apple Store. If youre experiencing problems hearing sound or selecting a playback device on your Mac there are quite a few quick fixes you can try before heading to the Genius Bar.
Head to System Preferences Sound and then click the Input tab.
Sudo apt-get install --reinstall alsa-base pulseaudio. From the Apple menu choose System Preferences. First disconnect any cables from the USB Thunderbolt or 35mm audio ports on your Mac. The sound quality may be different for each app.
