mirror of
https://github.com/thestk/stk
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98 lines
2.5 KiB
C++
98 lines
2.5 KiB
C++
/***************************************************/
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/*! \class VoicForm
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\brief Four formant synthesis instrument.
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This instrument contains an excitation singing
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wavetable (looping wave with random and
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periodic vibrato, smoothing on frequency,
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etc.), excitation noise, and four sweepable
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complex resonances.
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Measured formant data is included, and enough
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data is there to support either parallel or
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cascade synthesis. In the floating point case
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cascade synthesis is the most natural so
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that's what you'll find here.
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Control Change Numbers:
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- Voiced/Unvoiced Mix = 2
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- Vowel/Phoneme Selection = 4
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- Vibrato Frequency = 11
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- Vibrato Gain = 1
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- Loudness (Spectral Tilt) = 128
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by Perry R. Cook and Gary P. Scavone, 1995 - 2002.
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*/
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/***************************************************/
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#if !defined(__VOICFORM_H)
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#define __VOICFORM_H
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#include "Instrmnt.h"
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#include "Envelope.h"
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#include "Noise.h"
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#include "SingWave.h"
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#include "FormSwep.h"
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#include "OnePole.h"
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#include "OneZero.h"
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class VoicForm : public Instrmnt
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{
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public:
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//! Class constructor, taking the lowest desired playing frequency.
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VoicForm();
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//! Class destructor.
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~VoicForm();
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//! Reset and clear all internal state.
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void clear();
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//! Set instrument parameters for a particular frequency.
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void setFrequency(MY_FLOAT frequency);
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//! Set instrument parameters for the given phoneme. Returns FALSE if phoneme not found.
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bool setPhoneme(const char* phoneme);
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//! Set the voiced component gain.
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void setVoiced(MY_FLOAT vGain);
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//! Set the unvoiced component gain.
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void setUnVoiced(MY_FLOAT nGain);
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//! Set the sweep rate for a particular formant filter (0-3).
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void setFilterSweepRate(int whichOne, MY_FLOAT rate);
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//! Set voiced component pitch sweep rate.
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void setPitchSweepRate(MY_FLOAT rate);
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//! Start the voice.
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void speak();
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//! Stop the voice.
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void quiet();
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//! Start a note with the given frequency and amplitude.
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void noteOn(MY_FLOAT frequency, MY_FLOAT amplitude);
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//! Stop a note with the given amplitude (speed of decay).
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void noteOff(MY_FLOAT amplitude);
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//! Compute one output sample.
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MY_FLOAT tick();
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//! Perform the control change specified by \e number and \e value (0.0 - 128.0).
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void controlChange(int number, MY_FLOAT value);
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protected:
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SingWave *voiced;
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Noise *noise;
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Envelope *noiseEnv;
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FormSwep *filters[4];
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OnePole *onepole;
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OneZero *onezero;
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};
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#endif
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