Test your mic in Windows Settings

Windows has a built-in microphone test that takes about 30 seconds. Open Settings (press Windows key + I), then go to System > Sound. Scroll down to the Input section and look for Microphone.

Click Volume level or Test your microphone (the exact label depends on your Windows version). Speak normally for a few seconds. You should see a blue bar move as you talk — that bar shows your mic is picking up sound. If the bar stays flat and silent, your microphone is not working or is muted.

If you have multiple microphones connected (a headset, a webcam with a built-in mic, or your laptop's internal mic), make sure the right one is selected in the Choose your input device dropdown just above the test button. Windows defaults to whichever mic it detects first, which is often not the one you want to use.

Test your mic on Mac

On Mac, go to System Settings > Sound. Click the Input tab at the top. You will see a list of microphones — your internal mic, any USB headsets, or external mics you have plugged in.

Select the microphone you want to test. Below the list, you will see an Input level meter with a blue bar. Speak at normal volume and watch the bar move. A moving bar means the mic is working. If the bar does not move when you talk, that microphone is not receiving sound.

If you see a red line on the right side of the meter, your input level is too high and may cause distortion in calls or recordings. Adjust the volume slider below the meter to bring the level down until the bar stays mostly in the green zone.

Key Takeaways

  • Windows and Mac both have free built-in mic tests in their sound settings that show whether your microphone is picking up sound.
  • A moving blue bar or meter during the test means your microphone is working; a flat, silent bar means it is not receiving sound.
  • If you have multiple microphones connected, check that you have selected the correct one before testing.
  • On both systems, you can adjust input volume to prevent distortion or boost a quiet microphone.
  • If the built-in test shows your mic is working but apps cannot hear it, the app may have permission settings that are blocking the microphone.

Test your mic on iPhone or iPad

iPhones and iPads do not have a dedicated microphone test in Settings, but you can test your mic in the Voice Memos app. Open Voice Memos, tap the red record button, and speak for a few seconds. Then tap the stop button (the square icon). Tap the play button to listen back — if you hear your voice clearly, your microphone is working.

If you cannot hear yourself in the playback, your mic may be muted. Check the physical mute switch on the side of your device (a small toggle above the volume buttons). If it is in the down position, your device is in silent mode and the microphone may not record. Flip it up to unmute.

Test your mic on Android

Android phones do not have a built-in mic test in Settings either, but the Google Recorder app or any voice recording app will work. Open Google Recorder (if you have it installed) or download a free voice recorder from the Google Play Store. Tap the record button, speak for a few seconds, and stop the recording. Play it back — if you hear your voice, your microphone is working.

Some Android phones have a Diagnostics or Device Care app in Settings that includes a microphone test. Check your Settings menu under About phone or Device maintenance to see if your phone manufacturer included one.

Check microphone permissions in apps

If your microphone works in the system test but an app like Zoom, Teams, or Discord cannot hear you, the app does not have permission to use your mic. On Windows, go to Settings > Privacy & security > Microphone. Make sure the toggle next to the app you want to use is turned on (it should be blue).

On Mac, go to System Settings > Privacy & Security > Microphone. You will see a list of apps that have requested mic access. Check that the app you want to use is in the list and has a checkmark next to it. If it is not there, the app has not asked for permission yet — try opening the app and looking for a permission prompt.

On iPhone or iPad, go to Settings > Privacy > Microphone. Toggle on the app you want to use. On Android, go to Settings > Apps > Permissions > Microphone and turn on the app you need.

Troubleshoot a microphone that fails the test

If your microphone fails the system test, start by checking the physical connection. If you are using a USB headset or external microphone, unplug it and plug it back in. Wait a few seconds for your computer to recognize it again, then run the test a second time. Sometimes a loose connection or a temporary glitch is the only problem.

Next, restart your device. This clears temporary software issues that may be blocking the microphone. After restart, run the test again. If the microphone still does not work, check whether your device has a physical mute button or switch. Laptops sometimes have a mute key on the keyboard (often marked with a microphone icon with a line through it) — press it to unmute.

If you have tried all of these steps and the mic still does not work, the microphone hardware itself may be damaged. Try a different microphone (borrow a headset from a friend or use a different USB mic) to confirm whether the problem is with that specific microphone or with your device's audio system.

Frequently Asked Questions

Why does my microphone work in the system test but not in Zoom or Teams?

The app does not have permission to use your microphone. Check your system's privacy settings for that app and turn on microphone access. You may also need to restart the app after changing the permission.

What does it mean if the input level bar is in the red zone?

Your microphone is receiving sound that is too loud and may cause distortion or clipping in recordings or calls. Lower the input volume slider in your sound settings until the bar stays mostly in the green or yellow zone when you speak at normal volume.

Can I test a microphone before I buy it?

Not through this guide — you would need to test it in a store or borrow one from someone else first. Once you own it, plug it in and use the system test described above to check whether it works with your device.

My laptop has a built-in mic and a USB headset. How do I switch between them?

In Windows Settings or Mac System Settings, go to Sound and look for the input device dropdown. Select whichever microphone you want to use. Your system will remember that choice until you switch it again.

Do I need to restart my computer after plugging in a new microphone?

Usually not. Most modern computers recognize a new USB microphone within a few seconds. If it does not show up in your sound settings after 10 seconds, try unplugging it and plugging it back in, or restart if that does not work.