40 StifKarp( StkFloat lowestFrequency = 8.0 );
66 void pluck( StkFloat amplitude );
69 void noteOn( StkFloat frequency, StkFloat amplitude );
72 void noteOff( StkFloat amplitude );
78 StkFloat
tick(
unsigned int channel = 0 );
98 unsigned long length_;
100 StkFloat baseLoopGain_;
101 StkFloat lastFrequency_;
102 StkFloat lastLength_;
103 StkFloat stretching_;
104 StkFloat pluckAmplitude_;
105 StkFloat pickupPosition_;
111 StkFloat temp = delayLine_.
lastOut() * loopGain_;
114 for (
int i=0; i<4; i++)
115 temp = biquad_[i].
tick(temp);
118 temp = filter_.
tick(temp);
120 lastFrame_[0] = delayLine_.
tick(temp);
121 lastFrame_[0] = lastFrame_[0] - combDelay_.
tick( lastFrame_[0] );
122 return lastFrame_[0];
127 unsigned int nChannels = lastFrame_.
channels();
128 #if defined(_STK_DEBUG_) 129 if ( channel > frames.
channels() - nChannels ) {
130 oStream_ <<
"StifKarp::tick(): channel and StkFrames arguments are incompatible!";
135 StkFloat *samples = &frames[channel];
136 unsigned int j, hop = frames.
channels() - nChannels;
137 if ( nChannels == 1 ) {
138 for (
unsigned int i=0; i<frames.
frames(); i++, samples += hop )
142 for (
unsigned int i=0; i<frames.
frames(); i++, samples += hop ) {
144 for ( j=1; j<nChannels; j++ )
145 *samples++ = lastFrame_[j];
void setFrequency(StkFloat frequency)
Set instrument parameters for a particular frequency.
static void handleError(const char *message, StkError::Type type)
Static function for error reporting and handling using c-strings.
unsigned int frames(void) const
Return the number of sample frames represented by the data.
Definition: Stk.h:380
void controlChange(int number, StkFloat value)
Perform the control change specified by number and value (0.0 - 128.0).
StkFloat tick(StkFloat input)
Input one sample to the filter and return one output.
Definition: DelayA.h:137
STK one-zero filter class.
Definition: OneZero.h:20
STK plucked stiff string instrument.
Definition: StifKarp.h:36
StkFloat tick(StkFloat input)
Input one sample to the filter and return one output.
Definition: OneZero.h:79
The STK namespace.
Definition: ADSR.h:6
~StifKarp(void)
Class destructor.
void pluck(StkFloat amplitude)
Pluck the string with the given amplitude using the current frequency.
void noteOn(StkFloat frequency, StkFloat amplitude)
Start a note with the given frequency and amplitude.
void clear(void)
Reset and clear all internal state.
StifKarp(StkFloat lowestFrequency=8.0)
Class constructor, taking the lowest desired playing frequency.
StkFloat tick(StkFloat input)
Input one sample to the filter and return one output.
Definition: DelayL.h:136
void setPickupPosition(StkFloat position)
Set the pluck or "excitation" position along the string (0.0 - 1.0).
STK allpass interpolating delay line class.
Definition: DelayA.h:28
void noteOff(StkFloat amplitude)
Stop a note with the given amplitude (speed of decay).
STK linear interpolating delay line class.
Definition: DelayL.h:27
StkFloat tick(unsigned int channel=0)
Compute and return one output sample.
Definition: StifKarp.h:109
unsigned int channels(void) const
Return the number of channels represented by the data.
Definition: Stk.h:377
STK biquad (two-pole, two-zero) filter class.
Definition: BiQuad.h:20
void setBaseLoopGain(StkFloat aGain)
Set the base loop gain.
An STK class to handle vectorized audio data.
Definition: Stk.h:272
STK instrument abstract base class.
Definition: Instrmnt.h:19
STK noise generator.
Definition: Noise.h:21
void setStretch(StkFloat stretch)
Set the stretch "factor" of the string (0.0 - 1.0).
StkFloat lastOut(void) const
Return the last computed output value.
Definition: DelayA.h:80