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[Fixed] No Sound on My MacBook Air/Pro

By Emily Watson, Thursday, March 08, 2018

When you are launching your MacBook Air/Pro, you might be encountering some problems, for instance, Mac is not playing sounds or Mac won't play sound through headphones. So how can we fix the problem that you don't hear sound on Mac? Fortunately, we will list advisable solutions to help you to fix these two cases in no sound on Mac problem.

Case 1: Mac Not Playing Sounds, How to Fix 

Some people are complaining on Apple Support Communities that they can't hear sound  on MacBook Air/Pro. To resolve this problem that Mac not playing sounds, please follow the solutions below.

Play a music to check if the Mac really doesn't play sounds. If the progress bar is moving but you don't hear anything, there is definitely no sound.

Solution 1: Restart MacBook Air/Pro

Restart your MacBook Air/Pro. As we know, sometimes a simple restart can fix some minor glitches, including audio issue that Mac sound is not working.

Solution 2: Volume Up MacBook

Make sure you've turned volume up, or you can press down the Volume Up button because when volume is set to minimum, you are unable to hear the sound.

Solution 3: Update macOS

Employ the up-to-date macOS: Go to Apple menu and select Software Update to check for available update.

Update macOS

Solution 4: Play Music on Other Apps

Sometimes problem that no sound on Mac might be cause by the bug of the application.

Solution 5: Check Audio Settings on Mac

Check for System Preferences: Click on Apple menu System Preferences Sound. And then, choose Output > Internal Speaker. Make sure you've disabled the check box of Mute and moved the volume slider to the right. Quit System Preferences.

Output Sound Settings on Mac

Solution 6: Unplug External Speakers

Make sure you disconnect any external speaker on MacBook because it is possible that the sound might be delivered to your TV when you've plugged the MacBook to the TV.

Solution 7: Reboot the Sound Controller

Go to Activity Monitor in Utilities folder > select coreaudiod in Process Name > click on the Quit Process button. And then, Sound Controller will restart automatically so as to make Mac sound work again.

Reboot Sound Controller

Solution 8: Reset the NVRAM on your MacBook Air/Pro

When there is an audio issue on Mac, resetting the NVRAM should be taken into consideration. Press and hold Command, Option, R, P keys after restarting your MacBook Air/Pro. See Also: How to Reset NVRAM on Your MacBook Air/Pro

macOS NVRAM Key

Solution 9: Reset the SMC on your MacBook Air/Pro

The operations are different depending on whether you Mac has removable battery or not. Get more information: How to Reset SMC on Your MacBook Air/Pro

If all the solutions above can not fix your problem, you'd better contact Apple Support for help directly.


Case 2: Mac Won't Play Sound Through Headphones

Likewise, an user from Apple Support Communities is saying "When I listened to music with my headphones yesterday, the music suddenly stopped. It looks like the music is still playing but no sound." First of all, you need to unplug the headphones and play a music through Mac's internal speaker in order to make sure whether the headphones are not workable.

When you meet the problem that no sound come out through headphones plugged into Mac, some measure should be put into practice.

Solution 1: Basic Troubleshootings 

To fix Mac won't play sound through headphones, you should try the following tricks.

  • Restart your MacBook.

  • Try to plug headphones to other devices such as iPhone or Android devices.

  • Reinsert headphones: Unplug the headphone, and then, plug it back again.

  • Set the volume to as high as you like by pressing the volume up button.

  • Using headphones from Apple.

Solution 2: Check Headphone Port

Check if there is anything blocking the headphone port: Raise the notebook and blow air into the headphone jack to clear the dust in the line-in port. If there is obstruction on the port, it will stop Mac from playing sound through headphones.

Solution 3: Reset Headphones Settings

Check for System Preferences: First, navigate to Sound in System Preferences by clicking on Apple menu. Next, select Headphones on Output section. And then, drag the output volume to the right and disable the Mute check box. Quit Preferences.

Headphones Output on Mac

Solution 4: Change Speaker to Headphones

If you want to listen to the sound through your headphones plugged into MacBook Air/Pro when MacBook screen is cast on TV, you need to click the audio icon on the menu bar to change your speaker to Headphones.

Change Output Device

Solution 5: Reboot the Sound Controller

Open Activity Monitor and choose coreaudiod in the list of Processes. And then, Quit the Process. And then, Sound Controller will restart automatically so as to fix the no sound on MacBook Air/Pro problem.

If you are not satisfied with all the solutions above, you might need an overhaul on the MacBook Air/Pro from Apple.

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