bs-spectrum is a simple FFT spectrum analyzer application.
This application calculates FFT (Fast Fourier Transform) of the sound which is recorded by the iPad & iPhones internal mic. The calculated data is displayed as graph.
http://www.youtube.com/watch?v=AHokaaxueW8
Option Setting:
- Mode: Linear, Logarithmic
- Window: Rectangle, Hamming, Hanning, Blackman
- Decay: 250[ms], ... 4[s]
- Amplitude Offset