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Sound Not Working on Your Mac? Easy Fixes for Audio Problems

Audio glitches, internal components making strange sounds, problems with connecting an external audio device, or sound not working at all are some of the common Mac sound issues you may encounter.

At times, misconfigured apps or settings can result in static in your audio output, inability to change the volume, lack of stereo output, or even no output at all. Here’s a list of fixes to resolve sound problems on your Mac.

Before you spend all day resolving a non-existent issue, check the volume and make sure it’s not muted. Press and hold the F12 button to increase the volume, or use the slider in the menu bar to adjust it.

Additionally, check your computer’s audio port to ensure that you haven’t forgotten about any connected headphones or other external devices.

If your Mac’s sound is still not working after the basic troubleshooting above, we’ll next find whether the sound problem is system-wide or only in a particular app.

When you can’t hear anything after plugging in your headphones, microphone, or any other external device, you must check the input/output audio device settings. Sometimes your Mac might select the wrong device due to incorrect configuration, driver incompatibility, conflicts, or other reasons.

From the Apple menu, launch System Preferences and select Sound. Jump to the Input tab to check the input audio device settings. Make sure you have the correct input device for your audio selected.

Repeat the same procedure for the output audio device settings. A common mistake is unknowingly having a Bluetooth device connected, so audio plays to that instead of through your Mac’s speakers.

Sometimes simply switching from one output to another can also fix the problem. Also, try unplugging and reconnecting your audio devices. Remember to uncheck the Mute option and adjust the output again.

You’ll get a better view of all output devices through the Audio MIDI Setup utility. Open the app (search for it using Spotlight with Cmd + Space) and choose Built-in Output. In here, you can configure the audio channel, bit-depth, format, and rate.

If your sound is acting funny, tweak the audio settings. After you’ve made changes, quit the app and try playing your audio again.

Apple’s documentation defines Core Audio as a set of software frameworks designed to handle the audio needs in apps. This includes recording, editing, playback, signal processing, compression and decompression, and more.

On Mac, coreaudiod is the launchdaemon that powers Core Audio. Daemons typically run as root in the background, whether you’re logged in or not. Their process names end with the letter “d”. We’ve covered more about launchdaemons and their implications on macOS

LaunchDaemons and LaunchAgents, which launch software automatically at login, can have a dark side. Here's how to monitor them and keep yourself safe.

If the sound stops working or becomes distorted (crackling or noisy), then restarting the coreaudiod process should solve your problem. This effectively resets the sound on your Mac, and you can quit the processes in two ways.

One is to open Activity Monitor, type coreaudiod in the search box at the top-right, and click the Force Quit button to manually kill the process.

The coreaudiod process should restart via either method. In rare cases, if it does not restart, you may not hear any sound at all. In this case, shut down and restart your Mac.

sudo launchctl start com.apple.audio.coreaudiod The launchctl command starts the daemon and reinitializes the coreaudiod process.

Third-party plugins that integrate with your system can cause the sound on your Mac to not work correctly. Music producers and audio engineers are cautious of this, because there are often hardware and software incompatibilities with a new release of macOS. While developers are usually quick and responsive to issue app updates, the operating system itself can be a major headache.

With the release of macOS Catalina, every audio unit plugin must be “notarized” by Apple’s security systems. Non-notarized apps are not allowed to run on Catalina, meaning that any older audio plugin will not work at all.

Also, macOS Mojave was the last release to support 32-bit apps. We’ve covered how to check for 32-bit apps

If you use a Mac, you should know which apps on your system are 32-bit and likely to run into compatibility issues soon.

With so many creative audio apps available for Mac, it’s not possible to describe exact solutions for each app. Here are some general points to consider for fixing Mac sound problems with specific apps:

Check the desired output device in Audio MIDI Setup utility as mentioned above. Launch the app and right-click the Built-in Output option to see the list of devices. Toggle the output device selection to correct configuration problems, if any.

Every audio…