開始 audio
Tap 再生 or press Space. Your browser requires a gesture before audio can play.
Microphone Test
Check mic input levels locally — permission only on your action.
Microphone access is requested only when you click 開始. Audio never leaves your browser. 停止 releases the mic.
Microphone off
How to use
Adjust settings
Use sliders and controls to set frequency, volume, and waveform. Changes apply in real time.
Export or share
ダウンロード a WAV file or copy a share link. All processing stays on your device.
Frequently asked questions
Is my microphone audio uploaded?
No. Audio stays in your browser.