Microphone Test
See a live microphone level meter and waveform, choose an input, record a short clip, and play it back locally.
Test interface
Your browser may ask for permission after you press Start.How to use this tool
- Click Start microphone and allow access when prompted.
- Speak normally and watch the level meter and waveform respond.
- Select another input device if needed, then record a short sample and play it back.
- Use Download only if you want to save your own recording, then click Stop microphone.
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Technical explanation
getUserMedia() supplies an audio track, which is routed into the Web Audio API through an AnalyserNode. The meter shows recent RMS level and the waveform shows the time-domain signal. Recording uses MediaRecorder when the browser supports a compatible audio format.
A working microphone can still sound quiet, noisy, or distorted. The meter helps identify silence and clipping, but it cannot measure a microphone against a calibrated acoustic reference.
Troubleshooting
Flat or silent meter
Confirm the correct input is selected and not muted in the operating system. Check the physical mute switch on headsets and USB microphones.
Permission was denied
Reset the microphone permission for this site in your browser settings, then reload and start again.
Recording will not play
Some browsers do not support the same recording container they create. Try another browser or use the live meter as the primary test.
Background hum
Move USB microphones away from chargers and displays, use a headset microphone, or enable your operating system noise suppression.
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Frequently asked questions
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