How to Fix Audio Issues in macOS

Many reasons can cause the audio system on a MacOsto malfunction. Some of these causes can be solved by a simple troubleshooting guide. Other reasons, on the other hand, can be complicated and require extensive approach.

Both hardware issues and software issues can cause audio malfunctioning in Man computers.In this guide, we will look at the main reasons that cause audio malfunctions in MacOs, how to fix the audio issues and any other approach that can make your experience overwhelming.

What are the common causes of audio issues in MacOs?

Different reasons can cause audio issues in macOS. Here are four common reasons.

  • Wrong configurations/misconfigurationcore audio settings
  • Damaged sound card.
  • Misconfigured NVRAM
  • Outdated OS.

Before expansively looking at the above four reasons, you should first and foremost ensure that the speaker levels are configured correctly and that it is not muted. This will save you a lot of resources including, time before proceeding to the other troubleshooting guides.

How to check whether the system settings are correct.

  • Go to System Preference
  • Click the Sound button.
  • Go to Output (if the system is configured correctly, you will then be able to adjust the volume levels andif not, you will see the volume adjustment icon un-highlighted)

1. Update the Operating System

Sometimes, when the operating system is out of date, programs and apps might begin to malfunction. AnoutdatedMacOs can even cause audio-related issues.

To resolve the issue, you should update the system software to the latest version.

Here are the steps involved.

  • Click the Apple menu logo.
  • Click the software update button (you will be able to notice whether there is or there is no update)
  • If there is an update, click the Update Now button.

If this particular troubleshooting method does not work, or if the software was up to date, you should move to the next guide.

2. Resetting the Core Audio settings

If restarting your mac doesn’t get the issue resolved, you can reset the core audio settings by following the below steps.

  • Open Terminal (open search bar, type Terminal and double click it. Alternatively, you can click the finder logo, click Application, scroll to utilities and double click Terminal)
  • Enter sudo killall coreaudiod
  • Press Enterand provide the administrative password.

3. Resetting the Non-Volatile Random-Access Memory (NVRAM/PRAM)

NVRAM is a sidelined memory that temporarily stores your computer’s settings. When the settings are incorrect, your computer will not perform as it is supposed to.

To reset the NVRAM, you should follow the below steps.

  • Turn off your computer.
  • Turn it back ON
  • Before the computer plays the boot sound or the Apple logo appears, simultaneously press the command button, option button, P, and R keys.
  • DO NOT RELEASE the keys until the computer starts.
  • Done. Release the keys

4. Damaged sound card

If the sound card is damaged, you will hear a cracking sound from your computer’s speakers. To troubleshoot the sound card, there are a few steps involved.

Try to follow the resetting NVRAM guide above. If it still doesn’t work, then it means that there is a serious problem with the motherboard.

Other troubleshooting guides to try

  • Adjust the volume levels using the volume adjustment keys (the F12 button in most Mac computers)
  • Physically check and make sure the speaker wires are fixed correctly.
  • Reboot your MacBook
  • Make sure that there is no jack pin plugged on the earphone’s port.
  • If you are using audio apps, you should check their configurations/settings and make sure they are correctly set.


If all of the above troubleshooting guides do not work, you should seek professional advice and let the experts handle the issue.

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