Start audio
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Parametric frequency sweep for speaker and hearing checks.
Identify resonances, dead spots, and hearing limits. Speaker testers sweep while listening for buzzes or dropouts.
Sweep timing uses Web Audio exponential ramps — smooth frequency changes without clicks at moderate volume.
Audio is processed locally in your browser. Nothing is uploaded to our server.
Tap Play or press Space. Your browser requires a gesture before audio can play.
Use sliders and controls to set frequency, volume, and waveform. Changes apply in real time.
Download a WAV file or copy a share link. All processing stays on your device.
Exponential ramp when both endpoints are positive.