This application calculates FFT (Fast Fourier Transform) of the sound which is recorded by your Android device's internal mic. The calculated data is displayed as a graph.

Additionally, the Following functions included.
- Displaying peak amplitude and frequency
- Storing snapshot and comparing with real-time waveforms

Option Setting:
- Mode: Linear, Logarithmic
- Window: Rectangle, Hamming, Hanning, Blackman
- Decay: 250[ms], ... 4[s]
- Amplitude Offset