sound.spectrogram
Class NoteEvent

java.lang.Object
  sound.spectrogram.NoteEvent

public class NoteEvent
extends java.lang.Object

Copyright 2005, DocJava, Inc. User: dlyon Date: Nov 13, 2006 Time: 7:48:29 PM

Constructor Summary

NoteEvent()

NoteEvent(double[] audio)

Method Summary

double[]	characterizeNoise(double fractionalPartOfN) Enter in the first n samples that contain noise;
void	checkInputSignal(double[] audioData, double avgPower)
void	computeNoteNumber() This method will use the audio sample to compute the midi note number;
static double[]	get10StrongestHarmonicsTimes(double[] psd, int offset)
double[]	getAudioData()
double	getAveragePower(double[] audioData)
NoteEvent	getNoteEvent(double fractionalPartOfN)
NoteEvent	getNoteEvent(double startTimeInSeconds, double endTimeInSeconds) get a Sub-noteEvent.
NoteEvent	getNoteEvent(int start, int n) get a Sub-noteEvent.
NoteEvent[]	getNoteEvents()
NoteEvent[]	getNoteEvents2()
static int[]	getNStrongestFrequencies(double[] psd, int numberOfHarmonics)
static int[]	getNStrongestHarmonicLocations(double[] psd, int numberOfHarmonics)
static double[]	getNStrongestHarmonics(double[] psd, int numberOfHarmonics)
double[]	getPsdNormalized() Copy internal array, do not corrupt data.
boolean	isNoise(NoteEvent ne)
void	lyonWindowNoteEvent()
static void	main(java.lang.String[] args)
void	openSoundFile()
void	playSample()
void	saveDouble()
void	showFFT(java.lang.String title)
void	showFile()
java.lang.String	toString()

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

NoteEvent

public NoteEvent(double[] audio)

NoteEvent

public NoteEvent()

Method Detail

saveDouble

public void saveDouble()

getAudioData

public double[] getAudioData()

openSoundFile

public void openSoundFile()

playSample

public void playSample()

showFile

public void showFile()

showFFT

public void showFFT(java.lang.String title)

getAveragePower

public double getAveragePower(double[] audioData)

checkInputSignal

public void checkInputSignal(double[] audioData,
                             double avgPower)

getNoteEvents

public NoteEvent[] getNoteEvents()

getNoteEvents2

public NoteEvent[] getNoteEvents2()

computeNoteNumber

public void computeNoteNumber()

This method will use the audio sample to compute the midi note number;

getNoteEvent

public NoteEvent getNoteEvent(double fractionalPartOfN)

Parameters:

fractionalPartOfN -

Returns:

NoteEvent starting at location 0 and ending at n*fractionalPartOfN

getNoteEvent

public NoteEvent getNoteEvent(double startTimeInSeconds,
                              double endTimeInSeconds)

get a Sub-noteEvent.

Parameters:

startTimeInSeconds - at sample start

endTimeInSeconds - get n samples

Returns:

a note event from start to start+n.

getNoteEvent

public NoteEvent getNoteEvent(int start,
                              int n)

get a Sub-noteEvent.

Parameters:

start - at sample start

n - get n samples

Returns:

a note event from start to start+n.

characterizeNoise

public double[] characterizeNoise(double fractionalPartOfN)

Enter in the first n samples that contain noise;

Parameters:

n -

Returns:

noise data

getNStrongestFrequencies

public static int[] getNStrongestFrequencies(double[] psd,
                                             int numberOfHarmonics)

getNStrongestHarmonicLocations

public static int[] getNStrongestHarmonicLocations(double[] psd,
                                                   int numberOfHarmonics)

getNStrongestHarmonics

public static double[] getNStrongestHarmonics(double[] psd,
                                              int numberOfHarmonics)

isNoise

public boolean isNoise(NoteEvent ne)

getPsdNormalized

public double[] getPsdNormalized()

Copy internal array, do not corrupt data.

Returns:

a PSD.

lyonWindowNoteEvent

public void lyonWindowNoteEvent()

get10StrongestHarmonicsTimes

public static double[] get10StrongestHarmonicsTimes(double[] psd,
                                                    int offset)

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

main

public static void main(java.lang.String[] args)
                 throws java.lang.InterruptedException

Throws:

java.lang.InterruptedException