Microphone Not Working
How to fix a microphone that is not detected or not picking up sound
A microphone that is not working usually comes down to permissions, the wrong input device being selected, or volume set too low. Less often, it is a driver or hardware issue. Test your microphone at thetest.com/mic to verify it is working.
Work through these steps in order — most mic problems are solved in the first two.
- Open System Settings > Privacy & Security > Microphone
- Make sure the app you are using has its toggle turned on — if it is not listed, open the app and try to use the mic so it triggers the permission prompt
- Open System Settings > Sound, scroll to the Input section
- Select the correct input device (built-in microphone, USB mic, headset, etc.)
- Speak into the mic and watch the input level indicator — if it does not move, your mic is not picking up audio
- Drag the Input volume slider up if the level is too low
- If another app is using the mic (FaceTime, Zoom, etc.), quit that app and try again — only one app can typically hold the mic at a time
- If nothing works, restart your Mac. If the mic still is not detected, open System Information (Apple menu > About This Mac > More Info > System Report) and check under Audio to confirm the hardware is recognized
Frequently Asked Questions
Why does my microphone work in some apps but not others?▾
Most operating systems grant microphone access per app. If your mic works in one app but not another, the app that is failing almost certainly does not have permission. Check your OS privacy settings and make sure the specific app is allowed.
Can I use my phone as a microphone for my computer?▾
Yes. Apps like Camo (iOS/Android) or WO Mic (Android) let you use your phone as a USB or wireless microphone on your computer. You install a companion app on the computer, connect your phone, and it shows up as an input device. Quality is surprisingly good for calls.
Why is there echo or feedback when I use my microphone?▾
Echo usually means your mic is picking up audio from your speakers. Use headphones to eliminate it. If you are already using headphones, check that your app does not have "Listen to this device" or monitoring turned on, which plays your mic input back through your speakers. On Mac, also check that the input and output are not both set to the same Bluetooth device with a codec that causes delay.