44 Bowed( StkFloat lowestFrequency = 8.0 );
56 void setVibrato( StkFloat gain ) { vibratoGain_ = gain; };
65 void noteOn( StkFloat frequency, StkFloat amplitude );
74 StkFloat
tick(
unsigned int channel = 0 );
97 StkFloat maxVelocity_;
99 StkFloat vibratoGain_;
106 StkFloat bowVelocity = maxVelocity_ * adsr_.
tick();
107 StkFloat bridgeReflection = -stringFilter_.
tick( bridgeDelay_.
lastOut() );
108 StkFloat nutReflection = -neckDelay_.
lastOut();
109 StkFloat stringVelocity = bridgeReflection + nutReflection;
110 StkFloat deltaV = bowVelocity - stringVelocity;
112 StkFloat newVelocity = 0.0;
114 newVelocity = deltaV * bowTable_.
tick( deltaV );
115 neckDelay_.
tick( bridgeReflection + newVelocity);
116 bridgeDelay_.
tick(nutReflection + newVelocity);
118 if ( vibratoGain_ > 0.0 ) {
119 neckDelay_.
setDelay( (baseDelay_ * (1.0 - betaRatio_) ) +
120 (baseDelay_ * vibratoGain_ * vibrato_.
tick()) );
123 lastFrame_[0] = 0.1248 * bodyFilters_[5].
tick( bodyFilters_[4].
tick( bodyFilters_[3].
tick( bodyFilters_[2].
tick( bodyFilters_[1].
tick( bodyFilters_[0].
tick( bridgeDelay_.
lastOut() ) ) ) ) ) );
125 return lastFrame_[0];
130 unsigned int nChannels = lastFrame_.
channels();
131 #if defined(_STK_DEBUG_)
132 if ( channel > frames.
channels() - nChannels ) {
133 oStream_ <<
"Bowed::tick(): channel and StkFrames arguments are incompatible!";
138 StkFloat *samples = &frames[channel];
139 unsigned int j, hop = frames.
channels() - nChannels;
140 if ( nChannels == 1 ) {
141 for (
unsigned int i=0; i<frames.
frames(); i++, samples += hop )
145 for (
unsigned int i=0; i<frames.
frames(); i++, samples += hop ) {
147 for ( j=1; j<nChannels; j++ )
148 *samples++ = lastFrame_[j];
STK ADSR envelope class.
Definition: ADSR.h:27
StkFloat tick(void)
Compute and return one output sample.
Definition: ADSR.h:117
STK biquad (two-pole, two-zero) filter class.
Definition: BiQuad.h:21
StkFloat tick(StkFloat input)
Input one sample to the filter and return a reference to one output.
Definition: BiQuad.h:119
STK bowed string table class.
Definition: BowTable.h:23
StkFloat tick(StkFloat input)
Take one sample input and map to one sample of output.
Definition: BowTable.h:84
STK bowed string instrument class.
Definition: Bowed.h:41
void setFrequency(StkFloat frequency)
Set instrument parameters for a particular frequency.
Bowed(StkFloat lowestFrequency=8.0)
Class constructor, taking the lowest desired playing frequency.
StkFloat tick(unsigned int channel=0)
Compute and return one output sample.
Definition: Bowed.h:104
void noteOn(StkFloat frequency, StkFloat amplitude)
Start a note with the given frequency and amplitude.
void startBowing(StkFloat amplitude, StkFloat rate)
Apply breath pressure to instrument with given amplitude and rate of increase.
void setVibrato(StkFloat gain)
Set vibrato gain.
Definition: Bowed.h:56
~Bowed(void)
Class destructor.
void clear(void)
Reset and clear all internal state.
void stopBowing(StkFloat rate)
Decrease breath pressure with given rate of decrease.
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).
STK linear interpolating delay line class.
Definition: DelayL.h:28
StkFloat lastOut(void) const
Return the last computed output value.
Definition: DelayL.h:76
StkFloat tick(StkFloat input)
Input one sample to the filter and return one output.
Definition: DelayL.h:163
void setDelay(StkFloat delay)
Set the delay-line length.
Definition: DelayL.h:136
STK instrument abstract base class.
Definition: Instrmnt.h:20
STK one-pole filter class.
Definition: OnePole.h:21
StkFloat tick(StkFloat input)
Input one sample to the filter and return one output.
Definition: OnePole.h:80
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:287
unsigned int channels(void) const
Return the number of channels represented by the data.
Definition: Stk.h:415
unsigned int frames(void) const
Return the number of sample frames represented by the data.
Definition: Stk.h:418
static void handleError(const char *message, StkError::Type type)
Static function for error reporting and handling using c-strings.
The STK namespace.
Definition: ADSR.h:8