The fastest way to test your microphone right now

Open the voice recorder app that came with your computer or phone. On Windows, search for "Voice Recorder" in the Start menu. On Mac, search for "Voice Memos" in Spotlight. On iPhone or Android, look for "Voice Recorder" or "Recorder" in your app drawer. Hit the record button, speak a few words, stop recording, and play it back. If you hear yourself, your microphone works.

That's the test. If you hear nothing or only static, your microphone either isn't working or isn't set as the active input device. The next sections walk you through what to check and how to fix it.

Key Takeaways

  • The voice recorder app on your device is the simplest way to test whether your microphone captures sound at all.
  • If the recording is silent, check your device settings to confirm the microphone is set as the active input device, not muted, and has permission to record.
  • Physical obstructions like dust, tape, or a phone case covering the microphone hole will block sound even if the device thinks it's working.
  • Different apps may use different microphones (built-in, headset, external USB), so test the specific microphone you plan to use for that app.
  • Browser-based video calls need explicit permission to use your microphone, which you grant the first time you join a meeting.

Check if your microphone is muted or disabled in settings

On Windows: Right-click the speaker icon in the bottom-right corner of your taskbar and select "Open Sound settings." Scroll down to "Input" and look for your microphone in the list. Click on it. Below the name, you should see a green checkmark or "Connected" status. If it says "Disconnected" or "Not plugged in," Windows doesn't see it. If it's there but grayed out, it's disabled — click it and select "Enable."

Below the microphone name, look for a volume slider. If it's all the way to the left or shows a mute icon, drag it to the middle. Then scroll down to "Volume level" and speak into the microphone — you should see a blue bar move as you talk. If the bar doesn't move, the microphone isn't receiving sound.

On Mac: Click the Apple menu, go to "System Settings," then "Sound." Click the "Input" tab. You'll see a list of microphones. Click the one you want to use — it will have a checkmark next to it when selected. Look at the bottom of the window for "Input volume" and drag the slider to the middle if it's low. Speak into the microphone and watch the input level meter on the right — it should show movement as you talk.

On iPhone or iPad: Go to Settings, then Privacy, then Microphone. You'll see a list of apps. If the app you want to use has a toggle next to it and the toggle is off (gray), tap it to turn it on. If the app isn't listed at all, it hasn't asked for permission yet — open the app, try to use the microphone feature, and grant permission when prompted.

On Android: Go to Settings, then Apps, then Permissions, then Microphone. You'll see which apps have microphone access. If the app you need isn't listed or shows "Denied," open Settings, go to Apps, find the app by name, tap Permissions, and toggle Microphone on.

Look for physical blockages

Microphones are small holes or slits on your device. On laptops, the microphone is usually near the top of the screen or along the keyboard edge. On phones, it's typically at the bottom, top, or back. On headsets, it's the small boom or the mesh area near your mouth.

Dust, lint, tape, stickers, or a phone case that covers the hole will muffle or block sound completely. Gently wipe the microphone area with a dry cloth. If you use a phone case, check whether it covers the microphone hole — if it does, either trim the case or remove it when you need to record. Do not use water or compressed air, which can push debris deeper inside.

Test the microphone in the app you actually use

Your device may have multiple microphones — a built-in one, one in your headphones, one in an external USB microphone. An app might be set to use the wrong one. Before you assume the microphone is broken, test it in the specific app you need.

For video calls (Zoom, Google Meet, Teams, Discord), open the app and look for Settings or Preferences. Find the Audio or Microphone section. You'll see a dropdown menu listing available microphones. Select the one you want to use, then click "Test Microphone" or "Test Audio" if that button exists. Speak and listen to the playback. If it works here but not in a call, the problem is usually that the app doesn't have permission to use the microphone — see the browser and app permissions section below.

For web browsers (Zoom in a browser, Google Meet, Teams web, Discord web), the first time you join a meeting, the browser will ask "Allow [website] to access your microphone?" Click "Allow." If you clicked "Block" by mistake, the microphone won't work. To fix it, look for a small icon in the address bar (usually a camera or microphone with a slash through it), click it, and change the setting to "Allow."

Check browser and app permissions

Even if your microphone works in the voice recorder, an app or website may not be able to use it because you haven't given permission. This is a safety feature — apps can't secretly record you.

The first time you use a microphone in an app or browser, you'll see a permission prompt. If you tap or click "Allow," the app can use the microphone. If you tap or click "Don't Allow" or "Block," it can't, and you'll need to change the setting manually.

For apps on your phone: Go to Settings, then Apps or process Manager, find the app by name, tap Permissions, and toggle Microphone on.

For websites in your browser: Look at the address bar. If there's a small icon (camera, microphone, or a crossed-out symbol), click it. A menu will appear showing which permissions are blocked. Find Microphone and change it to "Allow." The exact steps vary by browser — Chrome, Firefox, Safari, and Edge all have slightly different menus — but they all follow this pattern.

Restart your device or the app

If the microphone worked before and suddenly doesn't, restart the app first. Close it completely (don't just minimize it), wait a few seconds, and open it again. Many microphone problems are temporary software glitches that a restart fixes.

If restarting the app doesn't work, restart your device. Power it off completely, wait 10 seconds, and power it back on. This clears temporary settings and reconnects hardware. After restart, test the microphone again in the voice recorder app.

When to check for hardware damage

If you've tested the microphone in the voice recorder, confirmed it's enabled in settings, checked for blockages, and restarted the device, but still hear nothing or only crackling, the microphone hardware may be damaged. This is most common if the device was dropped, exposed to liquid, or is very old.

For phones and tablets, a repair shop can test the microphone with specialized equipment and replace it if needed. For laptops, the same is true, though built-in microphone replacement is more involved than on phones. For external USB microphones or headsets, try plugging them into a different device — if they don't work on another computer or phone, the microphone itself is likely broken and needs replacement.

Before you pay for repair, try one more thing: connect an external microphone (a headset with a built-in mic, a USB microphone, or even earbuds with a microphone) and test that in the voice recorder. If the external microphone works, your built-in one is the problem. If the external one also doesn't work, the issue is likely a software setting or permission, not hardware.

Frequently Asked Questions

Why does my microphone work in some apps but not others?

Different apps may be set to use different microphones, or one app may not have permission to use the microphone while another does. Open Settings on your device, find the app that isn't working, and check that Microphone permission is turned on. Then open the app's own settings and confirm the correct microphone is selected as the input device.

My microphone records sound but it's very quiet. How do I make it louder?

In your device's Sound settings, find the Input or Microphone section and drag the volume slider to the right. If it's already high, the microphone itself may be weak — move closer to it when you speak, or use an external microphone with better sensitivity. Some apps also have their own microphone volume controls separate from the device setting.

I plugged in a headset with a microphone but my device still uses the built-in one. How do I switch?

Go to Sound settings, find the Input section, and click the headset microphone in the list to select it. On phones, this usually happens automatically when you plug in headphones, but you can manually select it in Settings if needed. Some apps also have their own microphone selector in their audio settings.

Can I test my microphone without recording myself?

Yes. In your device's Sound settings, look for the Input volume meter or level indicator. Speak into the microphone and watch the meter — if it moves, the microphone is working. This tells you whether sound is being captured without actually saving a recording.

What if my microphone works in the voice recorder but not in a video call?

The app or website doesn't have permission to use the microphone. Open the app's settings and look for Audio or Microphone permissions. If you're using a browser, click the icon in the address bar and change Microphone from "Block" to "Allow." Then close and reopen the video call.