Sound not working on your MacBook? Here’s how to fix it

Sound issues are common and mostly not serious. They can be fixed easily. Let’s look at the common causes and check how to fix sound issues on a macbook even if you lack the technical expertise.

Common Causes of Sound Issues 

To understand how to repair MacBook sound issues, we need to know the reasons why those issues occur:

• Volume settings: 

   

Start with the basics. Check your volume settings to see if it’s low or muted.

• Wrong output device:

   

See if your MacBook is trying to play sound through Bluetooth headphones or a speaker that’s no longer connected. 

• Software glitches:

   

A temporary bug, an app crash or a background process can affect your audio.

• OS updates:

   

Updating your macOS version can make it compatible with audio drivers. Change or reset the audio settings, and start working.

• Corrupt audio settings:

   

Sound preference files may be outdated or damaged, especially after an update or system crash.

• Hardware issues:

   

Audio components may be physically damaged or affected by dirt or moisture.

Basic Checks Before Troubleshooting 

Check for the following before you start to fix audio not working on Mac:

• Volume level:

   

Click the volume icon at the top right of your screen and make sure it’s not muted or the slider is not set to the lowest.

• Do not disturb mode:

   

If enabled, it can mute alerts and sounds.

• Volume keys:

   

Hit F12 or the volume key a few times to see the volume indicator and confirm its status. 

• System restart:

   

Temporary glitches messing with your audio can be resolved with a system restart.

• External devices:

   

Disconnect headphones, speakers, Bluetooth, or USB devices that may be interfering with your MacBook's sound.

• Try multiple apps:

   

Test playing sound from multiple apps to check for app-specific issues.

Step-by-Step Fixes for MacBook Sound 

Follow the steps below to know how to troubleshoot MacBook sound problems:

• Restart your Mac’s Core Audio:

   

Open Terminal (in Spotlight) → type core audio → press enter → enter your password. 

• Check sound settings:

   

In the menu, enter System settings → Sound. Confirm that “Internal Speakers” is selected as your output device. 

• Update OS:

   

Enter System settings → General → Software Update. Install pending updates to fix any audio bugs.

• Reset NVRAM/ PRAM:

   

Restart your Mac while pressing Option + Command + P +R to fix audio and related hardware issues.

• Reset System Management Controller (SMC) in case of Intel Macs:

   

Shut down your Mac, then press Shift + Control + Option on the left side plus the power button for 10 seconds to reset the hardware settings for audio.

• Check app-specific sound settings:

   

If sound control is an issue specific to only one app, check the volume control option for the app.

Reset sound settings 

Use this option to reset corrupted audio settings and resolve sound issues on Mac:

Go to Finder → Macintosh HD → Library → Preferences. Look for files starting with “com.apple.audio” and delete them. Restart your computer. A fresh sound preferences file is created. Now select the correct output device under System settings → Sound.

Check the audio output device 

This option works when your Mac is playing audio correctly, but only using the wrong device to deliver it. Here’s how you can correct it:

• Navigate to System settings → Sound → Output. 

   

• Check the list of available devices. 

   

• Select “MacBook speakers” to switch the device to internal speakers as the output device.

   

• Adjust the balance slider to correct sound leanings.

   

• Disconnect Bluetooth devices to ensure that they don’t take over the audio output.

Run Apple diagnostics 

Apple diagnostics can identify deeper hardware issues in case no other fix resolves the audio problem on your computer:

1. Shut down your computer.

    

1. Turn it on and immediately press and hold the D key.

    

1. You will see Apple Diagnostics loading on the screen.

    

1. Start the test according to the instructions. It takes about 3-5 minutes to complete.

    

1. Make a note of the error codes and visit Apple’s support site to review them for audio hardware.

    

1. Refer to the codes to Apple Support or visit an Apple Store for repairs.

When It’s a Hardware Problem 

Look for these signs to confirm if a hardware issue is giving you audio problems:

• Settings are correct, but no audio: Faulty sound card or internal speakers

   

• Audio is distorted or breaking: Loose connections or speaker damage

   

• Headphone jack not delivering: Dust, debris or damaged port

   

• Error codes with Apple Diagnostics show hardware failure.

   

• Deeper diagnostics run by an Apple service provider show hardware failure.

Conclusion 

Sound issues can seem difficult, but they can be resolved simply if you follow the steps to fix MacBook audio problems. Start with the basic volume level and settings checks. Then move on to more complex issues like output checks and diagnostics. If nothing works, visit an Apple technician as a last resort. Use the practical tips listed, and you are sure to find a quick solution.