Tools / A-weighted RMS

Recording levels

Measure A-weighted RMS, RMS, and active speech level for every channel in a WAV recording. Files are decoded and analyzed locally in your browser.

Drop a WAV recording hereor choose a file from your deviceChoose WAV file

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Each WAV channel is calculated independently. RMS levels are expressed in digital full scale. Active speech level follows ITU-T P.56; its dBov reference is digital full scale, so its dBov and dBFS values are equivalent. A calibrated recording is required to convert a value to dB SPL.