org.barrelorgandiscovery.tools

Class FFTTools

java.lang.Object

org.barrelorgandiscovery.tools.FFTTools

public class FFTTools
extends java.lang.Object

FFT Tools

Constructor Summary

Constructors

Constructor and Description
FFTTools()

Method Summary

Modifier and Type	Method and Description
static int	computeNearestPow2(int len) Compute the nearest pow of 2 number from the number given in parameter
static long	computeNearestPow2(long len)
static double[]	createRealAndImaginaryArray(byte[] b) Convert a 16 bit sample frame to a real / imaginary array for the FFT computation
static int	findMidiNote(ManagedAudioInputStream mais)
static double	mainFreq(double[] d, float framerate)

Methods inherited from class java.lang.Object

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

Constructor Detail

FFTTools

public FFTTools()

Method Detail

computeNearestPow2

public static int computeNearestPow2(int len)

Compute the nearest pow of 2 number from the number given in parameter

Parameters:

len -

Returns:

computeNearestPow2

public static long computeNearestPow2(long len)

mainFreq

public static double mainFreq(double[] d,
                              float framerate)
                       throws java.lang.Exception

Throws:

java.lang.Exception

createRealAndImaginaryArray

public static double[] createRealAndImaginaryArray(byte[] b)
                                            throws java.lang.Exception

Convert a 16 bit sample frame to a real / imaginary array for the FFT computation

Parameters:

b -

Returns:

Throws:

java.lang.Exception

findMidiNote

public static int findMidiNote(ManagedAudioInputStream mais)
                        throws java.lang.Exception

Throws:

java.lang.Exception