Processing Audio Data using Fourier Transforms in Java

Question

I\'m trying to process audio data. I\'m working with Java. I\'ve extracted the audio data to an array. Now I should pass N data samples to a function that calculates the Dis

Answer 1

If you only want Magnitude Spectrum of audio, go for jAudio API.

It provides class for calculating MS.

Answer 2

Richard G. Baldwin has a number of very good articles on Fast Fourier Transform algorithms in Java on the Developer.com website. In particular, the following articles should prove to be useful:

Fun with Java, Understanding the Fast Fourier Transform (FFT) Algorithm http://www.developer.com/java/other/article.php/3457251/Fun-with-Java-Understanding-the-Fast-Fourier-Transform-FFT-Algorithm.htm

Spectrum Analysis using Java, Sampling Frequency, Folding Frequency, and the FFT Algorithm http://www.developer.com/java/other/article.php/3380031/Spectrum-Analysis-using-Java-Sampling-Frequency-Folding-Frequency-and-the-FFT-Algorithm.htm

Answer 3

The link from @Sher is broken now. There is an API for the same purpose http://code.google.com/p/musicg/