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BlowHole Class Reference

STK clarinet physical model with one register hole and one tonehole. More...

#include <BlowHole.h>

Inheritance diagram for BlowHole::

List of all members.

Public Methods
	BlowHole (MY_FLOAT lowestFrequency)
	Class constructor.
	~BlowHole ()
	Class destructor.
void	clear ()
	Reset and clear all internal state.
void	setFrequency (MY_FLOAT frequency)
	Set instrument parameters for a particular frequency.
void	setTonehole (MY_FLOAT newValue)
	Set the tonehole state (0.0 = closed, 1.0 = fully open).
void	setVent (MY_FLOAT newValue)
	Set the register hole state (0.0 = closed, 1.0 = fully open).
void	startBlowing (MY_FLOAT amplitude, MY_FLOAT rate)
	Apply breath pressure to instrument with given amplitude and rate of increase.
void	stopBlowing (MY_FLOAT rate)
	Decrease breath pressure with given rate of decrease.
void	noteOn (MY_FLOAT frequency, MY_FLOAT amplitude)
	Start a note with the given frequency and amplitude.
void	noteOff (MY_FLOAT amplitude)
	Stop a note with the given amplitude (speed of decay).
MY_FLOAT	tick ()
	Compute one output sample.
void	controlChange (int number, MY_FLOAT value)
	Perform the control change specified by number and value (0.0 - 128.0).

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Detailed Description

STK clarinet physical model with one register hole and one tonehole.

This class is based on the clarinet model, with the addition of a two-port register hole and a three-port dynamic tonehole implementation, as discussed by Scavone and Cook (1998).

In this implementation, the distances between the reed/register hole and tonehole/bell are fixed. As a result, both the tonehole and register hole will have variable influence on the playing frequency, which is dependent on the length of the air column. In addition, the highest playing freqeuency is limited by these fixed lengths.

This is a digital waveguide model, making its use possibly subject to patents held by Stanford University, Yamaha, and others.

Control Change Numbers:

• Reed Stiffness = 2
• Noise Gain = 4
• Tonehole State = 11
• Register State = 1
• Breath Pressure = 128

by Perry R. Cook and Gary P. Scavone, 1995 - 2002.

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The documentation for this class was generated from the following file:

• BlowHole.h

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The Synthesis ToolKit in C++ (STK)

©1995-2002 Perry R. Cook and Gary P. Scavone. All Rights Reserved.