In this post we will take a look at calculating the log magnitude spectrum in Java/Android of a speech signal. This is often called a spectrogram, where we want to observe the phonetic structure of speech across time and frequency. In this example I will only calculate the log spectrum and...

## Android Java: Simple...

posted by miscanalysis

This is an Android development example on how to implement the FFT libraries from Badlogic games to calculate the Fourier Transform and Inverse Fourier Transform of a small float array. The code I have provided is developed on eclipse using the Android SDK. Before you start, be sure to...

## C Programming: The r...

posted by miscanalysis

This post is to help any one who is implementing Fast Fourier transform on a real sequence of numbers or one dimensional signal using the KissFFT method (keep it simple stupid). The code provided calculates the magnitude and phase from the real and imaginary components and then performs the...

## C Programming: The r...

posted by miscanalysis

This post is to help any one who is implementing the Fast Fourier transform on a real sequence of numbers or one dimensional signal in the C programming language. The code provided performs a one dimensional FFT and calculates the magnitude and phase from the real and imaginary components, it...