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BlowHole Class Reference

#include <BlowHole.h>

Inheritance diagram for BlowHole:

Instrmnt Stk List of all members.

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:

by Perry R. Cook and Gary P. Scavone, 1995 - 2004.

Definition at line 48 of file BlowHole.h.

Public Member Functions

 BlowHole (StkFloat lowestFrequency)
 Class constructor.

 ~BlowHole ()
 Class destructor.

void clear ()
 Reset and clear all internal state.

void setFrequency (StkFloat frequency)
 Set instrument parameters for a particular frequency.

void setTonehole (StkFloat newValue)
 Set the tonehole state (0.0 = closed, 1.0 = fully open).

void setVent (StkFloat newValue)
 Set the register hole state (0.0 = closed, 1.0 = fully open).

void startBlowing (StkFloat amplitude, StkFloat rate)
 Apply breath pressure to instrument with given amplitude and rate of increase.

void stopBlowing (StkFloat rate)
 Decrease breath pressure with given rate of decrease.

void noteOn (StkFloat frequency, StkFloat amplitude)
 Start a note with the given frequency and amplitude.

void noteOff (StkFloat amplitude)
 Stop a note with the given amplitude (speed of decay).

StkFloat tick ()
 Compute one output sample.

StkFloat * tick (StkFloat *vector, unsigned int vectorSize)
 Computer vectorSize outputs and return them in vector.

StkFramestick (StkFrames &frames, unsigned int channel=1)
 Fill a channel of the StkFrames object with computed outputs.

void controlChange (int number, StkFloat value)
 Perform the control change specified by number and value (0.0 - 128.0).


Constructor & Destructor Documentation

BlowHole::BlowHole StkFloat  lowestFrequency  ) 
 

Class constructor.

An StkError will be thrown if the rawwave path is incorrectly set.


Member Function Documentation

StkFrames& BlowHole::tick StkFrames frames,
unsigned int  channel = 1
[virtual]
 

Fill a channel of the StkFrames object with computed outputs.

The channel argument should be one or greater (the first channel is specified by 1). An StkError will be thrown if the channel argument is zero or it is greater than the number of channels in the StkFrames object.

Reimplemented from Instrmnt.


The documentation for this class was generated from the following file:
The Synthesis ToolKit in C++ (STK)
©1995-2004 Perry R. Cook and Gary P. Scavone. All Rights Reserved.