Microphone level meter

Check your microphone input level live — RMS level in dB, a peak-hold readout, and a 5-second peak test.

Audio is analyzed in this browser only. Nothing is recorded or sent.

Measures RMS level and peak from the microphone stream in real time, and a timed 5-second check reports the loudest moment. Requires microphone permission; audio never leaves this page.

How to use

  1. Allow microphone access.
  2. Speak and watch the level meter.
  3. Run the 5-second peak test if needed.

What it supports

Audio is analyzed in the browser only — nothing is recorded or sent. Requires microphone permission and a browser with Web Audio support. Levels are relative (dBFS), not calibrated SPL.

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