com.jsyn.data

Class Spectrum

java.lang.Object

com.jsyn.data.Spectrum

public class Spectrum
extends java.lang.Object

Complex spectrum with real and imaginary parts. The frequency associated with each bin of the spectrum is:

 frequency = binIndex * sampleRate / size
 

Note that the upper half of the spectrum is above the Nyquist frequency. Those frequencies are mirrored around the Nyquist frequency. Note that this spectral API is experimental and may change at any time.

Version:

016

Author:

Phil Burk (C) 2013 Mobileer Inc

See Also:

SpectralFFT, SpectralIFFT, SpectralProcessor

Field Summary

Fields

Modifier and Type	Field and Description
static int	DEFAULT_SIZE
static int	DEFAULT_SIZE_LOG_2

Constructor Summary

Constructors

Constructor and Description
Spectrum()
Spectrum(int size)

Method Summary

Modifier and Type	Method and Description
void	clear()
void	copyTo(Spectrum destination) Copy this spectrum to another spectrum of the same length.
double[]	getImaginary()
double[]	getReal()
void	setSize(int size) If you change the size of the spectrum then the real and imaginary arrays will be reallocated.
int	size()

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_SIZE_LOG_2

public static final int DEFAULT_SIZE_LOG_2

See Also:

Constant Field Values

DEFAULT_SIZE

public static final int DEFAULT_SIZE

See Also:

Constant Field Values

Constructor Detail

Spectrum

public Spectrum()

Spectrum

public Spectrum(int size)

Method Detail

getReal

public double[] getReal()

getImaginary

public double[] getImaginary()

setSize

public void setSize(int size)

If you change the size of the spectrum then the real and imaginary arrays will be reallocated.

Parameters:

size -

size

public int size()

copyTo

public void copyTo(Spectrum destination)

Copy this spectrum to another spectrum of the same length.

Parameters:

destination -

clear

public void clear()