57 void noteOn( StkFloat frequency, StkFloat amplitude );
66 StkFloat
tick(
unsigned int channel = 0 );
86 StkFloat maxPressure_;
88 StkFloat vibratoGain_;
93inline StkFloat BlowBotl :: tick(
unsigned int )
95 StkFloat breathPressure;
96 StkFloat randPressure;
97 StkFloat pressureDiff;
100 breathPressure = maxPressure_ * adsr_.
tick();
101 breathPressure += vibratoGain_ * vibrato_.tick();
103 pressureDiff = breathPressure - resonator_.lastOut();
105 randPressure = noiseGain_ * noise_.tick();
106 randPressure *= breathPressure;
107 randPressure *= (1.0 + pressureDiff);
109 resonator_.tick( breathPressure + randPressure - ( jetTable_.tick( pressureDiff ) * pressureDiff ) );
110 lastFrame_[0] = 0.2 * outputGain_ * dcBlock_.tick( pressureDiff );
112 return lastFrame_[0];
117 unsigned int nChannels = lastFrame_.
channels();
118#if defined(_STK_DEBUG_)
119 if ( channel > frames.
channels() - nChannels ) {
120 oStream_ <<
"BlowBotl::tick(): channel and StkFrames arguments are incompatible!";
121 handleError( StkError::FUNCTION_ARGUMENT );
125 StkFloat *samples = &frames[channel];
126 unsigned int j, hop = frames.
channels() - nChannels;
127 if ( nChannels == 1 ) {
128 for (
unsigned int i=0; i<frames.
frames(); i++, samples += hop )
132 for (
unsigned int i=0; i<frames.
frames(); i++, samples += hop ) {
134 for ( j=1; j<nChannels; j++ )
135 *samples++ = lastFrame_[j];
STK ADSR envelope class.
Definition ADSR.h:25
STK biquad (two-pole, two-zero) filter class.
Definition BiQuad.h:26
STK blown bottle instrument class.
Definition BlowBotl.h:33
void noteOff(StkFloat amplitude)
Stop a note with the given amplitude (speed of decay).
void controlChange(int number, StkFloat value)
Perform the control change specified by number and value (0.0 - 128.0).
void clear(void)
Reset and clear all internal state.
StkFloat tick(unsigned int channel=0)
Compute and return one output sample.
Definition BlowBotl.h:93
void setFrequency(StkFloat frequency)
Set instrument parameters for a particular frequency.
void stopBlowing(StkFloat rate)
Decrease breath velocity with given rate of decrease.
void startBlowing(StkFloat amplitude, StkFloat rate)
Apply breath velocity to instrument with given amplitude and rate of increase.
BlowBotl(void)
Class constructor.
~BlowBotl(void)
Class destructor.
void noteOn(StkFloat frequency, StkFloat amplitude)
Start a note with the given frequency and amplitude.
STK instrument abstract base class.
Definition Instrmnt.h:20
STK jet table class.
Definition JetTable.h:24
STK noise generator.
Definition Noise.h:22
STK one-pole, one-zero filter class.
Definition PoleZero.h:22
STK sinusoid oscillator class.
Definition SineWave.h:26
StkFloat tick(void)
Compute and return one output sample.
Definition SineWave.h:99
An STK class to handle vectorized audio data.
Definition Stk.h:279
unsigned int channels(void) const
Return the number of channels represented by the data.
Definition Stk.h:416
unsigned int frames(void) const
Return the number of sample frames represented by the data.
Definition Stk.h:419
The STK namespace.
Definition ADSR.h:6