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Audio Analyzer

Use a microphone, demo signal or file to inspect RMS, peak, dBFS and rough pitch.

Local execution receiptinput path disclosedTool content stays out of MonoTools URLs and API requests.
Working input
Browser memory
Cross-tool handoff
Session only · 10 min
URL payload
Never
Export
Explicit action

Verify it: open DevTools Network, clear the log, use the tool, then inspect fetch/XHR requests. Page assets and optional aggregate analytics may use the network; tool input is not included.

Full privacy model
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How to use

  1. 01Click Start mic and allow microphone access.
  2. 02Watch waveform, frequency spectrum and level metrics update live.
  3. 03Use Stop to release the microphone when finished.
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FAQ

Is audio uploaded or recorded?
No. The Web Audio API analyzes the microphone stream inside your browser. The tool does not record, save or upload audio.
Is this a calibrated sound meter?
No. RMS, peak, dBFS and rough pitch are useful debugging signals, but not calibrated acoustic measurements.
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