Real-Time Web Audio API Input Diagnostic

Microphone Test & Echo Playback

Check your microphone volume levels, monitor peak clipping in dBFS, visualize frequency spectrum, and perform a 5-second audio playback test.

Input Volume Level (dBFS) -∞ dBFS

Live Frequency Spectrum

Click "Record 5s Echo Test" to hear your voice

              Peak Volume
              Max
            
0%

Sample Rate Hz

Channel Count Audio

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Your audio stream is processed directly on your device using HTML5 Web Audio API. No voice data or recordings are ever transmitted over the network.