A properly working microphone is essential on a MacBook Air or MacBook Pro, especially when you use your device for video calls, online meetings, voice recordings, gaming, podcasts, or voice commands. However, many users experience situations where the microphone suddenly stops detecting sound, delivers poor audio quality, or completely refuses to work after a macOS update, app installation, or settings change. If you have also run into this vexing issue, try out these 9 best tips and tricks to fix the microphone not working on MacBook Air/Pro. Keep reading to…
How to Fix Microphone Not Working on MacBook Air/Pro
Thankfully, the microphone issues on MacBooks are usually caused by simple software settings, privacy restrictions, incorrect input selections, or temporary system glitches. Therefore, before assuming there is a hardware problem, it is worth checking a few important settings and troubleshooting steps.
1. Check Microphone Input Settings
A common reason why your MacBook microphone stops working is an incorrect input source selection. Sometimes macOS switches to another audio device, such as Bluetooth headphones, external microphones, or monitors with built-in microphones. As a result, your Mac may not receive audio from the internal microphone.
Hence, checking the input settings should be your first troubleshooting step because it helps confirm whether macOS is detecting the correct microphone.
- Click the Apple menu in the top-left corner.
- Select System Settings.
- Click Sound from the sidebar.
- Choose the Input option.
- Select your MacBook’s built-in microphone.
- Adjust the input volume slider and speak to check whether the input level moves.
2. Allow Microphone Access for Apps
macOS includes strict privacy controls that prevent applications from accessing your microphone without permission. If an app such as Zoom, Microsoft Teams, FaceTime, Chrome, or another recording application does not have microphone access, your microphone will appear unavailable.
Moreover, after macOS updates, some privacy permissions may reset automatically, causing previously working apps to lose microphone access.
- Open System Settings on your Mac.
- Select Privacy & Security.
- Click Microphone.
- Turn on microphone access for the apps you want to use.
- Close and reopen the affected application.
3. Restart Your MacBook
Temporary system bugs can sometimes interfere with audio services and prevent the microphone from functioning correctly. Background processes responsible for handling sound input may stop responding after long usage or after installing updates.
Therefore, restarting your MacBook refreshes system processes and reloads audio services, which can often fix microphone problems instantly.
- Click the Apple menu.
- Select Restart.
- After that, wait for your MacBook to reboot completely.
- Open a microphone-related app and test the audio again.
4. Check If Another App Is Using the Microphone
Sometimes another application may already be accessing your microphone in the background. When this happens, another app may fail to use the microphone properly or may show no available input device.
Furthermore, apps running in the background, such as meeting tools, browsers, or recording software, can keep microphone access active even after you stop using them.
- First off, make sure to close all apps that may use the microphone.
- Check the menu bar for active microphone indicators.
- Open Activity Monitor from Applications.
- Force-quit unnecessary audio-related applications.
- Then, relaunch the app where you need microphone access.
5. Disconnect External Audio Devices
Connected accessories can sometimes become the default microphone source on your MacBook. For example, AirPods, wired headphones, USB microphones, or external displays may replace the built-in microphone automatically.
Therefore, disconnecting external devices helps determine whether the problem is related to accessory settings rather than your MacBook’s internal microphone.
- Disconnect all wired audio devices.
- Turn off Bluetooth temporarily.
- Remove AirPods or wireless headphones.
- Restart the microphone app.
- Test the built-in MacBook microphone.
6. Reset Core Audio Service
The Core Audio service manages sound input and output on macOS. If this service becomes unresponsive due to system errors, your microphone may stop working even though the hardware is functioning properly.
Moreover, restarting the Core Audio process forces macOS to rebuild the audio connection and can resolve many sound-related issues.
- Open Terminal from Applications.
- Type the following command:
sudo killall coreaudiod
- Press Enter.
- Enter your Mac administrator password if requested.
- Wait for the audio service to restart automatically.
- Test your microphone again.
7. Update macOS to the Latest Version
Software bugs in macOS can sometimes affect microphone performance, especially after major updates or when using early versions of a new operating system. Apple regularly releases updates that fix compatibility issues and improve hardware performance.
Therefore, installing the latest macOS update can resolve microphone problems caused by system bugs.
- On your Mac, navigate to System Settings > General.
- Click Software Update > download and install any available updates.
8. Test Microphone Using Voice Memos
Testing your microphone with Apple’s built-in Voice Memos app helps identify whether the problem is system-wide or limited to a specific application.
If the microphone works in Voice Memos but not in another app, the issue is likely related to that application’s settings or permissions.
- On your Mac, head over to the Voice Memos app.
- Click the record button.
- Speak near your MacBook microphone.
- Stop the recording.
- Play it back to check audio quality.
- If the recording is clear, check settings inside the problematic app.
9. Check for Hardware Issues
If none of the software solutions work, there may be a physical issue affecting your MacBook’s microphone. Dust buildup, accidental damage, liquid exposure, or internal component failure can prevent the microphone from capturing sound.
Therefore, checking the hardware condition helps determine whether professional repair is required.
- Inspect the microphone openings near the MacBook display.
- Clean dust carefully using a soft brush.
- Check whether the MacBook has physical damage.
- Run Apple Diagnostics to detect hardware problems.
- Contact Apple Support if hardware failure is detected.
Frequently Asked Questions (FAQs)
Why is my MacBook microphone not working after an update?
A macOS update can sometimes reset privacy permissions, change audio settings, or introduce temporary software bugs. Checking microphone permissions, input settings, and installing additional updates can usually resolve the issue.
How do I test my MacBook microphone?
You can test your MacBook microphone by opening the Voice Memos app and recording your voice. If the recording sounds clear, your microphone is working correctly.
Why does my MacBook show no microphone input?
Your MacBook may show no microphone input if another audio device is selected, microphone permissions are disabled, or the Core Audio service is not working properly.
Can a damaged MacBook microphone be repaired?
Yes, a damaged MacBook microphone can usually be repaired by an authorized service provider. However, it is recommended to confirm that the issue is hardware-related before requesting repairs.
Wrapping up..!
And that’s about it! I guess you have eventually gotten the better of this macOS issue. The microphone problem on a daily driver can be rather frustrating, especially when you rely on your device for meetings, calls, and recordings. However, most microphone problems are caused by software settings, privacy restrictions, or temporary system issues rather than serious hardware failures.
