Microphone Tester
Test any microphone in your browser: live level meter, real-time waveform, mono/stereo channel check, clipping detection, and a record-and-playback round-trip.
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What is Microphone Tester?
Microphone Tester opens your mic with getUserMedia and measures it live: an RMS input level meter, a real-time waveform, channel count, sample rate, and clipping detection at 98% full scale. Record a short clip and play it back for a true end-to-end round-trip - all processed locally, nothing uploaded.
Key Benefits
- Verify your mic works before meetings, streams, and recordings
- Clipping detection catches distortion that plain volume bars hide
- Channel and sample-rate readouts settle mono vs stereo confusion
- Playback round-trip proves the whole capture chain, drivers included
- Fully local processing - audio never leaves your device
Common Use Cases
- •Checking a headset or USB mic before an interview or stream
- •Diagnosing why teammates say you are too quiet or distorted
- •Setting a consistent input level across different microphones
- •Verifying a new audio driver or OS update did not break capture
How to Test Your Microphone
- Start and allow access: Click the start button and allow microphone permission when the browser asks.
- Speak and watch the meter: Talk at your normal volume: the level meter should move, the waveform should follow, and the clipping flag should stay off.
- Record a round-trip: Record a short clip and play it back to hear exactly what meeting apps and listeners would capture.
Key Features
- Live RMS input level meter with a percentage readout
- Real-time waveform drawn from raw sample data
- Clipping detection at 98% full scale with a warning flag
- Channel count check for mono vs stereo (L/R) setups
- Sample rate display for the active audio session
- Record and play back a clip - a true capture round-trip, fully local