Package com.musicg.dsp

Class FastFourierTransform

java.lang.Object

com.musicg.dsp.FastFourierTransform

public class FastFourierTransform
extends java.lang.Object

FFT object, transform amplitudes to frequency intensities

Author:

Jacquet Wong

Constructor Summary

Constructors

Constructor	Description
FastFourierTransform()

Method Summary

Modifier and Type	Method	Description
double[]	getMagnitudes(double[] amplitudes)	Get the frequency intensities

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

FastFourierTransform

public FastFourierTransform()

Method Detail

getMagnitudes

public double[] getMagnitudes(double[] amplitudes)

Get the frequency intensities

Parameters:

amplitudes - amplitudes of the signal

Returns:

intensities of each frequency unit: mag[frequency_unit]=intensity