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AudioTool – SPL (deciBel) Meter featuring RT60, Leq, Spectrum Analyzer, Spectrogram, Chart Recorder, Signal Generator, Polarity Checker. Two methods of Mic calibration are offered.
Recommended by “Sound and Vision” magazine

Features: 1/1, 1/3 & 1/6 octave RTA modes, Leq (wideband,Octave, variable duration), RT60 (wideband, Octave), Peak Store,Spectrogram, Waterfall, Peak frequency, Impulse, Fast, Medium &Slow filters, Flat & A/C Weighting and film industry X Curve,Averaging, SPL Chart Recorder, Noise Criteria (NC and NR),White/Pink Noise, Sine, Square, Triangle, Sweep, Log Sweep, Warble,Ramp and Impulse signals & loudspeaker polarity checker, L/Rselect. RTA Store & Load, Hann windows, pinch to zoom, scrollto center.

Exclusive ISO 1/3 Octave Calibration – can correct for yourphone’s microphone response. Octave calibration discs are moved upor down to obtain a flat response, and match the overall SPL tothat of an external meter. Save/Restore of Cal files (popularDayton Audio iMM-6 also supported).

Use: gig measurements, home theater, acoustics, car, etc.

AudioTool FFTs sets of microphone samples. Aliasing reduced byHann windowing. SPL calculated in realtime. Spectra may be saved,then loaded and displayed with the live spectrum.

Screenshots

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Downloads

AudioTool v7.3 Paid / Mirror