Use APKPure App
Get Sound monitor FFTWave old version APK for Android
You can check the frequency characteristics of the sound in real time.
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.