Microphone sounds robotic or distorted: fixes

Your voice sounds metallic, choppy or like a robot on a call or recording. The cause could be the microphone, wireless connection, sound processing or the app, so start by checking the microphone outside the app where you hear the problem.

The Microphone Test shows whether sound reaches the browser and lets you record a short sample to play back. That can help narrow down whether the distortion is happening before or inside your calling or recording app.

Test the microphone outside the app

1. Open the Microphone Test and press Start microphone. Allow microphone access when your browser asks.
2. Choose the microphone you use in calls from the device list. If you are not sure which one it is, test the available choices one at a time. See how to tell which microphone your PC is using.
3. Speak at your usual volume and watch the signal meter and waveform. The status should change to Sound detected. Keep the microphone at its normal distance from your mouth.
4. Press Record 5 seconds, say a sentence, then play it back. If the sound is distorted, turn off one of the test's Noise suppression, Echo cancellation or Auto volume switches and record again. Change one switch at a time.

Use the same microphone and speak in the same way for each recording. If the test recording sounds clear but a call does not, the microphone itself is less likely to be the cause.

What the result means

The test recording sounds clear, but calls sound robotic

The microphone can make a clean recording, so check the calling app's selected input, noise reduction and audio effects. It may be using a different microphone or applying processing that changes your voice.

The test recording also sounds robotic

The problem is likely in the microphone, its connection, a system audio effect or the browser's processing. Try the fixes below, especially testing with a wired microphone or the computer's built-in microphone.

The sound breaks up or cuts in and out

That can happen when a wireless connection is unstable, the microphone is too far away, or another app is competing for access. Move closer to the computer, reconnect the microphone and close other apps that might be using it.

Your voice distorts mostly when you speak loudly

The input may be clipping, which means the signal is too loud for the microphone or audio input to capture cleanly. Move the microphone slightly farther away and reduce the input level if your system or app offers that control.

How to fix it

1. Check the microphone position and mute controls. Keep a headset boom a few inches from your mouth, but not directly in front of your breath. Check for a mute switch or a loose cable, and lower your voice briefly to see whether loud speech is the trigger.
2. Reconnect the microphone. Unplug a USB microphone and try a different port. For Bluetooth, disconnect and reconnect the headset, then test again with the computer close by. If you use a wireless headset, charge it before testing.
3. Turn off sound processing one setting at a time. In the Microphone Test, compare recordings with Noise suppression, Echo cancellation and Auto volume switched off individually. In your calling app, look for noise suppression, voice enhancement or automatic gain and temporarily turn it off too.
4. Check Windows sound settings. In Windows 11, open Settings › System › Sound, select your microphone under Input, and check its input volume. If you see Audio enhancements, turn them off for a test. Also check the calling app's audio settings and choose the same microphone.
5. Check macOS sound settings. Open System Settings › Sound › Input, select the microphone and check the input level. In an app that offers a microphone mode, open Control Center › Mic Mode during the call and try Standard instead of a voice isolation mode.
6. Check microphone permission and close other apps. On Windows 11, open Settings › Privacy & security › Microphone. On a Mac, open System Settings › Privacy & Security › Microphone. Make sure your browser or calling app is allowed, then quit other calling or recording apps and test again.
7. Try the built-in microphone or another headset. If you are on a phone, turn Bluetooth off temporarily and record with the phone's built-in microphone. On an iPhone, check Settings › Privacy & Security › Microphone. On Android, open Settings › Apps, select the calling app, then check Permissions › Microphone.

When the microphone may be faulty

If the same distortion appears in the test recording and in more than one app, try the microphone on another device if possible. If it is still distorted there, inspect its cable, connector and mute controls. A damaged cable or headset may need replacement. For a built-in laptop microphone that stays distorted after software and permission checks, contact the manufacturer or a repair shop.

Why Bluetooth can change your voice

Bluetooth headsets can use different audio modes for listening and speaking. When the microphone is active, some headsets switch to a mode with less bandwidth for audio, which can make sound seem thinner or less clear. If your voice becomes robotic only while using a Bluetooth headset, test its microphone with Bluetooth turned off or use a wired or built-in microphone. That comparison can identify the connection as the cause without changing unrelated settings.

Your Microphone Test recording stays on your device. Nothing you record is uploaded.