Why Mac Audio Breaks After Updates
macOS updates can mess with your audio settings in frustrating ways. After updating to macOS Sequoia, many users find their audio completely silent, crackling, or behaving erratically. The good news? Most audio issues after updates are fixable with the right approach.
Here's what typically goes wrong: macOS resets audio drivers, changes default output devices, or breaks third-party audio software compatibility. Sometimes the update process itself corrupts audio preferences.
Quick Fixes to Try First
1. Check Your Output Device
This sounds obvious, but updates often reset your default audio output:
- Click the Control Center icon in your menu bar
- Select Sound
- Make sure the correct output device is selected
- If using external speakers or headphones, unplug and reconnect them
2. Restart Core Audio
Core Audio is macOS's audio engine. When it gets confused, a restart usually helps:
- Open Terminal (Applications > Utilities)
- Type:
sudo pkill coreaudiod - Enter your password when prompted
- Audio should return in a few seconds
3. Reset NVRAM/PRAM
Your Mac stores audio settings in NVRAM. Resetting it can fix stubborn audio issues:
- Shut down your Mac completely
- Turn it on and immediately hold Option + Command + P + R
- Hold for 20 seconds, then release
- Your Mac will restart with fresh audio settings
Advanced Audio Fixes
4. Check Audio MIDI Setup
Sometimes updates mess with your audio configuration:
- Open Applications > Utilities > Audio MIDI Setup
- Select your audio device in the left panel
- Check the sample rate (try 44.1 kHz if it's set higher)
- Make sure the device isn't muted or set to zero volume
5. Delete Audio Preferences
Corrupted preferences files cause weird audio behaviour:
- Quit all audio applications
- In Finder, press Shift + Command + G
- Go to:
~/Library/Preferences/ - Delete files starting with
com.apple.audio - Restart your Mac
6. Check for Conflicting Software
Third-party audio apps sometimes conflict after system updates:
- Quit audio utilities like equalizers or virtual audio drivers
- Test if audio works without them
- Check the developer's website for macOS Sequoia compatibility updates
- Reinstall audio software if needed
When Individual Apps Have Audio Issues
Sometimes system audio works fine, but specific apps are silent or too loud. This is where macOS's lack of per-app audio control becomes really frustrating.
7. Per-App Audio Solutions
Unlike Windows, macOS doesn't have a built-in volume mixer. After an update, you might find:
- Chrome tabs blasting at full volume while music is barely audible
- Discord chat drowning out everything else
- No way to balance audio between different applications
For basic per-app control, apps like Soundish provide the missing volume mixer functionality. You can set individual volume levels for each app (0-200%), mute specific applications, and even route different apps to different outputs—like sending Discord to headphones while keeping Spotify on speakers.
This is especially useful after updates when apps might reset their internal volume settings or when the system audio balance gets messed up.
8. Audio Output Routing Issues
Post-update, you might need different apps going to different audio devices:
- Video calls to your headset microphone
- Music to your external speakers
- System sounds to built-in speakers
macOS Sequoia doesn't handle this natively, but per-app audio routing tools let you send each application exactly where you want it.
Prevention for Future Updates
To avoid audio headaches after future macOS updates:
- Note your current audio settings before updating
- Quit third-party audio software before installing updates
- Keep audio drivers and utilities updated
- Consider per-app audio control tools that work independently of system updates
When Nothing Works
If these fixes don't help:
- Check Apple's System Status page for known audio issues
- Try creating a new user account to test if the problem is account-specific
- Consider reinstalling macOS (last resort, but sometimes necessary)
- Contact Apple Support if it's a widespread issue with your Mac model
Getting Better Audio Control
Once your audio is working again, consider adding proper per-app volume control to prevent future frustrations. macOS Sequoia still lacks the basic volume mixer that Windows has had since 2007, but third-party solutions can fill this gap affordably.
The key is choosing tools that work reliably across system updates and provide the specific features you need—whether that's basic per-app volume or more advanced audio routing.
Originally published at appish.app
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