Microphone Test

What this microphone test checks

The test answers three questions: does your browser have permission to use the mic, is the mic picking up sound, and does that sound come through clearly. The live meter shows level instantly, and the short recording lets you hear what other people hear on a call.

Everything is processed in your browser using standard web APIs. Nothing is uploaded, stored on a server or shared.

If the meter doesn't move

• Make sure you allowed microphone access. If you denied it, open your browser's site settings and change Microphone to Allow.
• Close other apps that might be using the mic, like a video call.
• On a phone, remove any case that might cover the mic hole, usually on the bottom edge.
• Disconnect Bluetooth headsets — your browser may be using their mic instead.
• Restart the browser and try again.

If the recording sounds bad

Muffled audio often means the mic hole is blocked by dust, lint or a screen protector edge. A soft, dry brush can help; avoid pins or liquids. If the sound crackles or cuts out, try a different app to see whether the problem is the hardware or a single app's settings.

Very quiet recordings can be caused by noise-cancelling settings or by covering the mic with your hand. Hold the phone as you would on a call and try again.

Where phone microphones are

Most phones have several microphones: one at the bottom for calls, one near the top or camera for noise cancellation and video. Browsers usually use the main one. If one mic is faulty you may notice problems only in certain apps, such as video recording or speakerphone.

When to get it checked

If the meter stays flat with permission granted, no case, and no Bluetooth device connected — and other apps also can't hear you — the mic may be faulty or water-damaged. A repair shop can test and replace it.