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Class lyon.audio.FFT 

java.lang.Object
   |
   +----java.awt.Component
           |
           +----java.awt.Container
                   |
                   +----java.awt.Window
                           |
                           +----java.awt.Frame
                                   |
                                   +----lyon.audio.FFT
public class FFT
extends java.awt.Frame

Variable Index

o forward
o i_data
o nu
o r_data
o title
o twoPI

Constructor Index

o FFT()
o FFT(int)

Method Index

o arrayCopy(double[])
o bitr(int)
o bitReverse2()
o centering(double[])
o computePSD()
o dft(double[])
o forwardFFT(double[], double[])
o getImaginary()
o getMaxValue(double[])
o getReal()
o graphs()
o graphs(String)
o idft()
o ifft()
o log2(int)
o main(String[])
o normalizeAndTruncateInput(double[])
o normalizeData()
o printArray(double[], String)
o printArrays(String)
o printReal(String)
o reverseFFT(double[], double[])
o setTitle(String)
o swapInt(int, int)
o testDFT()
o testFFT()
o testPSD()
o timeFFT()

Variables

o r_data 
 private double r_data[]
o i_data 
 private double i_data[]
o title 
 private java.lang.String title
o forward 
 private boolean forward
o nu 
 private int nu
o twoPI 
 private static final float twoPI

Constructors

o FFT 
 public FFT(int N)
o FFT 
 public FFT()

Methods

o graphs 
 public void graphs()
o graphs 
 public void graphs(java.lang.String t)
o setTitle 
 public void setTitle(java.lang.String t)
Overrides:
setTitle in class java.awt.Frame
o swapInt 
 private void swapInt(int i,
                      int j)
o getMaxValue 
 public static double getMaxValue(double in[])
o normalizeAndTruncateInput 
 private void normalizeAndTruncateInput(double in[])
o bitReverse2 
 private void bitReverse2()
o bitr 
 private int bitr(int j)
o reverseFFT 
 public void reverseFFT(double in_r[],
                        double in_i[])
o centering 
 private void centering(double r[])
o forwardFFT 
 public void forwardFFT(double in_r[],
                        double in_i[])
o log2 
 public static int log2(int n)
o arrayCopy 
 public static double[] arrayCopy(double in[])
o dft 
 public double[] dft(double v[])
o normalizeData 
 private void normalizeData()
o getReal 
 public double[] getReal()
o getImaginary 
 public double[] getImaginary()
o computePSD 
 public double[] computePSD()
o ifft 
 public double[] ifft()
o idft 
 public double[] idft()
o printArray 
 public static void printArray(double v[],
                               java.lang.String title)
o printArrays 
 public void printArrays(java.lang.String title)
o printReal 
 public void printReal(java.lang.String title)
o main 
 public static void main(java.lang.String args[])
o testPSD 
 private static void testPSD( o 
timeFFT

 public static void timeFFT( o 
testFFT

 public static void testFFT( o 
testDFT

 public static void testDFT(


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