org.knowceans.sandbox
Class Convolver

java.lang.Object
  org.knowceans.sandbox.Convolver

public class Convolver
extends java.lang.Object

Convolver performs fast convolution on the input signals, using the FIR filter on a signal vector.

Author:

gregor

Constructor Summary

Convolver()

Method Summary

static void	convolve(double[] xx, double[] yy, double[] hh) performs overlap save convolution on the input signals xx
void	init(double[] hh)
void	overlapSave(double[] xx, double[] yy) performs overlap save convolution on the input signals xx

Methods inherited from class java.lang.Object

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

Constructor Detail

Convolver

public Convolver()

Method Detail

convolve

public static void convolve(double[] xx,
                            double[] yy,
                            double[] hh)

performs overlap save convolution on the input signals xx

Parameters:

xx - input signal frame

yy - output signal frame (length = input + IR - 1)

hh - time-domain impulse response

framesize - 2^n

init

public void init(double[] hh)

Parameters:

hh -

framesize -

overlapSave

public void overlapSave(double[] xx,
                        double[] yy)

performs overlap save convolution on the input signals xx

Parameters:

xx - input signal frame vector

yy - output signal frame vector

hh - time-domain impulse response

framesize - 2^n