Issue Description
Audio output or microphone input stops working in apps or system-wide.
Common Causes
- Wrong audio device selected
- App permissions blocked
- Audio services stuck
Step-by-Step Solution
Step 1: Check Sound Output/Input
- Open System Settings → Sound
- Select correct Output and Input device
Step 2: Check App Permissions
- System Settings → Privacy & Security → Microphone
- Enable access for affected apps
Step 3: Restart Core Audio
- Open Terminal
sudo killall coreaudiod
- Enter admin password
Step 4: Restart Mac
- Test sound and mic again
Explore Further
- Test with external headphones
Prevention & Best Practices
Review audio permissions after updates.