jass.generators
Class ResonFilter

java.lang.Object
  jass.generators.ResonFilter

All Implemented Interfaces:

Filter

public class ResonFilter
extends java.lang.Object
implements Filter

Reson filter.

Author:

Kees van den Doel (kvdoel@cs.ubc.ca)

Field Summary

protected float

srate Sampling rate in Hertz.

Constructor Summary

ResonFilter(float srate)
Create and initialize.

Method Summary

void	filter(float[] output, float[] input, int nsamples, int inputOffset) Proces input (may be same as output).
float	filter1Sample(float input) Proces a single sample.
void	reset() Reset state.
void	setGain(float a) Set gain.
void	setResonCoeff(float f, float d, float a) Set the reson coefficients and gain.

Methods inherited from class java.lang.Object

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

Field Detail

srate

protected float srate

Sampling rate in Hertz.

Constructor Detail

ResonFilter

public ResonFilter(float srate)

Create and initialize.

Parameters:

srate - sampling rate in Hertz.

Method Detail

setResonCoeff

public void setResonCoeff(float f,
                          float d,
                          float a)

Set the reson coefficients and gain. Cache c_i.

Parameters:

f - resonance frequency in Hertz.

d - damping in radians/s.

a - gain.

setGain

public void setGain(float a)

Set gain.

Parameters:

a - gain.

reset

public void reset()

Reset state.

filter

public void filter(float[] output,
                   float[] input,
                   int nsamples,
                   int inputOffset)

Proces input (may be same as output).

Specified by:

filter in interface Filter

Parameters:

output - user provided buffer for returned result.

input - user provided input buffer.

nsamples - number of samples written to output buffer.

inputOffset - where to start in circular buffer input.

filter1Sample

public float filter1Sample(float input)

Proces a single sample. Use thgis to use ResonFilter in stand-alone mode (i.e., not in a patch.

Parameters:

input - user provided input sample

Returns:

returned result.