If the sound is missing on your Mac, the output devices may be incorrectly selected, audio processes may be frozen, or there may be a conflict with applications.
Below are quick ways to fix it.
Method 1: Check Output Device
- Open System Preferences → Sound → Output
- Make sure the correct device is selected
- Try switching to another device and back
Method 2: Restart Core Audio
- Open Terminal
- Execute:
sudo killall coreaudiod
- The sound will restart automatically
Method 3: Restart Mac
- A full restart helps fix frozen processes
Method 4: Check Connected Devices
- Disconnect external speakers or headphones
- Check the sound on the built-in speakers
Additional Reasons
- macOS errors after an update
- Conflict with third-party audio plugins
- Issues with Bluetooth audio
Conclusion
Most often, checking the output device and restarting Core Audio helps. If the sound does not appear, check third-party plugins and system updates.