biz.source_code.dsp.filter

Class EchoFilter

java.lang.Object

biz.source_code.dsp.filter.EchoFilter

All Implemented Interfaces:

SignalFilter

public class EchoFilter
extends Object
implements SignalFilter

A very simple echo filter that adds an echo to a signal.

This filter produces multiple echoes by adding attenuated delayed output samples to the input signal.

Constructor Summary

Constructors

Constructor and Description
EchoFilter(int echoDelay, double attenuation) Creates a new echo filter.

Method Summary

Modifier and Type	Method and Description
double	step(double inputValue) Processes an input signal value and returns the next output signal value.

Methods inherited from class java.lang.Object

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

Constructor Detail

EchoFilter

public EchoFilter(int echoDelay,
                  double attenuation)

Creates a new echo filter.

Parameters:

echoDelay - Echo delay time in samples.

attenuation - Echo attenuation factor. Must be below 1 to prevent feedback overflow.

Method Detail

step

public double step(double inputValue)

Description copied from interface: SignalFilter

Processes an input signal value and returns the next output signal value.

Specified by:

step in interface SignalFilter