Microphone Test: Test Your Mic Online

Open this page, click “Test microphone” and allow access. Then say a sentence: if the bar moves, your microphone is working. Use the recording to listen to yourself and the noise measurement to check background noise. The test is free, requires no download or account, and runs in Chrome, Edge, Firefox and Safari.

Start a recording, speak for up to 10 seconds, then play it back. The test deliberately does not play your microphone live through your speakers, as that would immediately cause feedback without headphones. The recording lets you hear your microphone as your browser delivers it, with or without the browser's echo and noise cancellation filters. It may sound different in Discord or TeamSpeak because they use their own filters.

You can see your level live in dBFS. 0 dBFS is the maximum; anything above it is clipped. When speaking normally, peaks should be between −24 and −6 dBFS; in the example above, they are at −14.0 dBFS. Above −3 dBFS, you are close to clipping. If your signal reaches the maximum, the test counts each clipping event and displays a warning for 2 seconds. It also measures the noise floor: below −60 dBFS is quiet, while −45 dBFS or above is loud. In the example, a headset in a quiet room measures −66.0 dBFS, while a laptop microphone next to a fan measures −41.9 dBFS.

If this test shows a level, your microphone is working and the issue is in Discord. The most common causes: a different input device is selected under Voice & Video, you're muted, push-to-talk is enabled, or the input sensitivity is set above your speaking level. On Windows, “Allow desktop apps to access your microphone” must also be enabled. If the bar stays low here, check the mute button and device first.

Connect your headset, start the test, and select the headset as your microphone above. Otherwise, many computers use the built-in or webcam microphone. Speak from about a hand's width away and keep the level in the green range. If you plug in the headset during the test, it will appear and you can switch to it immediately. With Bluetooth headsets, the microphone often only activates in hands-free mode, which also makes the audio you hear sound worse.

Start the test, select the correct device at the top and speak. If the bar moves, your microphone is working. If it produces complete silence, the test warns you; it is usually muted. If your voice barely registers, you may have selected the wrong device or set the system input level to zero. If the test says “No microphone found,” no input device is connected or your system does not recognize it. If it says “Microphone is in use,” another program, such as a game, OBS or a video conferencing app, has exclusive access to it. Your browser only shows microphone names after you have allowed access once.

After you deny access, the browser will not ask again. The test will then show you the steps for your browser. In Chrome, click the sliders icon on the left of the address bar and allow microphone access. In Edge, click the lock icon, then Permissions. In Firefox, click the crossed-out microphone icon. In Safari, find the setting under Settings > Websites > Microphone. Then reload the page. If your operating system has blocked browser access to the microphone, you will need to allow it under Privacy in Windows or macOS instead.

Measure the background noise and compare it with and without noise suppression. Above −45 dBFS, it is clearly audible. Lower the gain and move closer to the microphone: your voice gets louder while the noise stays the same. Enable noise suppression in Discord or TeamSpeak. Humming often comes from USB hubs or front-panel ports; connecting directly to the motherboard can help.

Yes, in current browsers on Android and iPhone. Allow access as you would on a computer to see levels, make a recording and measure noise. Safari does not allow every filter to be turned off, so the test shows which settings the browser actually uses.

No. Audio is analyzed only in your browser. The test calculates levels and noise locally; the recording exists as a file only in your browser's memory and disappears when you delete it or close the page. Nothing is sent to a server or stored. The test releases your microphone when you leave the page.