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Gizke.com
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Microphone Test

Runs on your device. Nothing is sent.

Live test

Your browser will ask to use the microphone. Speak, sing or tap the mic and watch the meters move.

Device

Start the microphone to see its name, sample rate and channels.

Check your mic in the browser: live peak and RMS levels in dBFS, clipping, background noise, waveform, spectrum, device details and a WAV recording.

This microphone test shows exactly what your browser hears. The meters read peak and RMS level in dBFS (0 is the loudest a digital signal can be), a red warning appears when the signal clips, and the waveform and spectrum show the sound as it arrives. Run the 10-second check for a plain answer - too quiet, too loud, clipping, noisy or good - with the numbers behind it. Record a clip to hear yourself back as an uncompressed WAV, switch between microphones, and turn the echo cancellation, noise suppression and auto gain that video calls use on or off to compare.

Microphone test FAQ

Why doesn't my microphone work in the browser?
Usually it's a permission. Allow the microphone from the icon in the address bar, then check your system: on Windows, Settings › Privacy & security › Microphone must allow desktop apps and your browser; on macOS, System Settings › Privacy & Security › Microphone must list your browser. Also check for a mute switch on the headset or cable, that another app (Zoom, Teams, Discord) isn't holding the mic, and pick the right device in the list above.
What is a good microphone level?
Levels are in dBFS, where 0 is the digital maximum and everything else is negative. For speech, aim for peaks between about -12 and -6 dBFS and an RMS level around -20. Background noise between words should sit below -50, ideally below -60. Peaks at 0 clip and distort, and speech below about -40 RMS is hard to hear.
What do echo cancellation, noise suppression and auto gain do?
They are the clean-up most video-call apps apply. Echo cancellation removes your speakers' sound from the mic, noise suppression cuts steady background noise, and auto gain raises or lowers the volume automatically. Leave them on to hear what a call hears; turn them off to test the raw microphone - auto gain in particular hides how loud your mic really is.
Why does the recording sound different from my calls?
Calls compress your voice heavily and may add their own noise removal. This page saves the recording as uncompressed WAV, so you hear what the microphone really picked up. If the recording sounds fine but calls don't, look at the call app's audio settings or your connection.
Is my voice uploaded or saved?
No. The audio is analysed and recorded inside your browser and never sent anywhere. A recording exists only in this tab until you download it or close the page.

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