jass.generators
Class TubeFilter

java.lang.Object
  jass.generators.KellyLochbaumFilter
      jass.generators.TubeFilter

All Implemented Interfaces:

Filter

public class TubeFilter
extends KellyLochbaumFilter

A filter corresponding to a tube of a given length and shape. Excitation enters one side ("glottis") and sound is produced at the other end. Besides shape data it needs the glottal reflection coefficient and the total damping factor, modeling losses in the system. This class offers also a higher level interface to set the tube parameters through the TubeShape.

Author:

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

Field Summary

protected TubeShape

tubeShape

Fields inherited from class jass.generators.KellyLochbaumFilter

cylRadius, dampingCoeff, gi, go, kCoeff, li, lo, nTubeSections, srate

Constructor Summary

TubeFilter(float srate, TubeShape ts, double c)
Create and initialize.

Method Summary

void	changeTubeModel() Change tube parameters (radii) and change filter accordingly Assumes caller has the TubeModel object and maintains it
protected void	setKLRadii() Set the radii in the filter according to the Tubemodel

Methods inherited from class jass.generators.KellyLochbaumFilter

computeKCoeff, filter, resetFilter, setAllCylinderRadii, setCylinderRadius, setDampingCoeff, setGlottalReflectionCoeff

Methods inherited from class java.lang.Object

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

Field Detail

tubeShape

protected TubeShape tubeShape

Constructor Detail

TubeFilter

public TubeFilter(float srate,
                  TubeShape ts,
                  double c)

Create and initialize.

Parameters:

srate - sampling rate in Hertz.

ts - a tube shape to build the filter out of

c - speed of sound in m/s

Method Detail

changeTubeModel

public void changeTubeModel()

Change tube parameters (radii) and change filter accordingly Assumes caller has the TubeModel object and maintains it

setKLRadii

protected void setKLRadii()

Set the radii in the filter according to the Tubemodel