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...

## Android-Java: The re...

posted by miscanalysis

Here is an example of calculating the Fourier Transform android using the FFT class from libgdx. The code I have provided is developed on eclipse. Before you start, be sure to download the libgdx jar library files. Here is a good resource for learning how to install libgdx in eclipse along...

## 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...