Diagnostics•100% ブラウザ完結・完全プライベート
マイクテスト（録音＆再生）
波形オシロスコープ、音量dBFSメーター、ノイズフロア、5秒録音ループバック再生。
Acoustic TelemetryChecking Permission...
Microphone & Spectrum Analyzer
Real-time FFT audio visualizer, volume (dBFS), noise floor, and instant playback recorder.
🎙️
Ready to Test Microphone
Click below to enable your microphone and inspect live acoustic waveform and frequency telemetry.
🔒 100% Client-Side · Audio never recorded or transmitted🚫
Microphone Permission Blocked
Live Volume
0.0 dBFS
Peak Amplitude
0%
Sample Rate
-- kHz
Noise Floor
Quiet
Captured 5s Audio Sample
Download WebMMicrophone Verification Verdict:Did the live waveform respond to your voice with clear, non-distorted audio?