Version 4.1

include/VoicForm.h

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