You can check the frequency characteristics of the sound in real time.

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Update
Jul 21, 2025
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50,000+

App APKs

Sound monitor FFTWave APP

FFTWave is a free software.
This app displays the waveform of the sound from the microphone.
In addition, it can display a spectrum by Fourier transform.
You can check the frequency characteristics of the sound in real time.
There are functions of peak detection, peak hold.
Supporting the Pinch Zoom Gestures.
It help sound adjustment and howling analysis.
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