66 void pluck( StkFloat amplitude );
69 void noteOn( StkFloat frequency, StkFloat amplitude );
78 StkFloat
tick(
unsigned int channel = 0 );
99 StkFloat baseLoopGain_;
100 StkFloat lastFrequency_;
101 StkFloat lastLength_;
102 StkFloat stretching_;
103 StkFloat pluckAmplitude_;
104 StkFloat pickupPosition_;
110 StkFloat temp = delayLine_.
lastOut() * loopGain_;
113 for (
int i=0; i<4; i++)
114 temp = biquad_[i].
tick(temp);
117 temp = filter_.
tick(temp);
119 lastFrame_[0] = delayLine_.
tick(temp);
120 lastFrame_[0] = lastFrame_[0] - combDelay_.
tick( lastFrame_[0] );
121 return lastFrame_[0];
126 unsigned int nChannels = lastFrame_.
channels();
127 #if defined(_STK_DEBUG_)
128 if ( channel > frames.
channels() - nChannels ) {
129 oStream_ <<
"StifKarp::tick(): channel and StkFrames arguments are incompatible!";
134 StkFloat *samples = &frames[channel];
135 unsigned int j, hop = frames.
channels() - nChannels;
136 if ( nChannels == 1 ) {
137 for (
unsigned int i=0; i<frames.
frames(); i++, samples += hop )
141 for (
unsigned int i=0; i<frames.
frames(); i++, samples += hop ) {
143 for ( j=1; j<nChannels; j++ )
144 *samples++ = lastFrame_[j];
STK biquad (two-pole, two-zero) filter class.
Definition: BiQuad.h:21
STK allpass interpolating delay line class.
Definition: DelayA.h:29
StkFloat lastOut(void) const
Return the last computed output value.
Definition: DelayA.h:80
StkFloat tick(StkFloat input)
Input one sample to the filter and return one output.
Definition: DelayA.h:137
STK linear interpolating delay line class.
Definition: DelayL.h:28
StkFloat tick(StkFloat input)
Input one sample to the filter and return one output.
Definition: DelayL.h:163
STK instrument abstract base class.
Definition: Instrmnt.h:20
STK noise generator.
Definition: Noise.h:22
STK one-zero filter class.
Definition: OneZero.h:21
StkFloat tick(StkFloat input)
Input one sample to the filter and return one output.
Definition: OneZero.h:79
STK plucked stiff string instrument.
Definition: StifKarp.h:37
void pluck(StkFloat amplitude)
Pluck the string with the given amplitude using the current frequency.
void noteOff(StkFloat amplitude)
Stop a note with the given amplitude (speed of decay).
void setStretch(StkFloat stretch)
Set the stretch "factor" of the string (0.0 - 1.0).
void controlChange(int number, StkFloat value)
Perform the control change specified by number and value (0.0 - 128.0).
~StifKarp(void)
Class destructor.
void setFrequency(StkFloat frequency)
Set instrument parameters for a particular frequency.
void setPickupPosition(StkFloat position)
Set the pluck or "excitation" position along the string (0.0 - 1.0).
StkFloat tick(unsigned int channel=0)
Compute and return one output sample.
Definition: StifKarp.h:108
void clear(void)
Reset and clear all internal state.
void setBaseLoopGain(StkFloat aGain)
Set the base loop gain.
void noteOn(StkFloat frequency, StkFloat amplitude)
Start a note with the given frequency and amplitude.
StifKarp(StkFloat lowestFrequency=10.0)
Class constructor, taking the lowest desired playing frequency.
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