The Synthesis ToolKit in C++ (STK)

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SingWave.h
1 #ifndef STK_SINGWAVE_H
2 #define STK_SINGWAVE_H
3
4 #include "FileLoop.h"
5 #include "Modulate.h"
6 #include "Envelope.h"
7
8 namespace stk {
9
10 /***************************************************/
23 /***************************************************/
24
25 class SingWave : public Generator
26 {
27 public:
29
36 SingWave( std::string fileName, bool raw = false );
37
39 ~SingWave( void );
40
42 void reset( void ) { wave_.reset(); lastFrame_[0] = 0.0; };
43
45 void normalize( void ) { wave_.normalize(); };
46
48 void normalize( StkFloat peak ) { wave_.normalize( peak ); };
49
51 void setFrequency( StkFloat frequency );
52
54 void setVibratoRate( StkFloat rate ) { modulator_.setVibratoRate( rate ); };
55
57 void setVibratoGain( StkFloat gain ) { modulator_.setVibratoGain( gain ); };
58
60 void setRandomGain( StkFloat gain ) { modulator_.setRandomGain( gain ); };
61
63 void setSweepRate( StkFloat rate ) { sweepRate_ = rate; };
64
66 void setGainRate( StkFloat rate ) { envelope_.setRate( rate ); };
67
69 void setGainTarget( StkFloat target ) { envelope_.setTarget( target ); };
70
72 void noteOn( void ) { envelope_.keyOn(); };
73
75 void noteOff( void ) { envelope_.keyOff(); };
76
78 StkFloat lastOut( void ) const { return lastFrame_[0]; };
79
81 StkFloat tick( void );
82
84
91 StkFrames& tick( StkFrames& frames, unsigned int channel = 0 );
92
93 protected:
94
95 FileLoop wave_;
96 Modulate modulator_;
97 Envelope envelope_;
98 Envelope pitchEnvelope_;
99 StkFloat rate_;
100 StkFloat sweepRate_;
101
102 };
103
104 inline StkFloat SingWave :: tick( void )
105 {
106 // Set the wave rate.
107 StkFloat newRate = pitchEnvelope_.tick();
108 newRate += newRate * modulator_.tick();
109 wave_.setRate( newRate );
110
111 lastFrame_[0] = wave_.tick();
112 lastFrame_[0] *= envelope_.tick();
113
114 return lastFrame_[0];
115 }
116
117 inline StkFrames& SingWave :: tick( StkFrames& frames, unsigned int channel )
118 {
119 #if defined(_STK_DEBUG_)
120 if ( channel >= frames.channels() ) {
121 oStream_ << "SingWave::tick(): channel and StkFrames arguments are incompatible!";
122 handleError( StkError::FUNCTION_ARGUMENT );
123 }
124 #endif
125
126 StkFloat *samples = &frames[channel];
127 unsigned int hop = frames.channels();
128 for ( unsigned int i=0; i<frames.frames(); i++, samples += hop )
129 *samples = SingWave::tick();
130
131 return frames;
132 }
133
134 } // stk namespace
135
136 #endif
stk::SingWave::SingWave
SingWave(std::string fileName, bool raw=false)
Class constructor taking filename argument.
stk::Envelope::setTarget
void setTarget(StkFloat target)
Set the target value.
stk::Stk::handleError
static void handleError(const char *message, StkError::Type type)
Static function for error reporting and handling using c-strings.
stk::SingWave::setFrequency
void setFrequency(StkFloat frequency)
Set looping parameters for a particular frequency.
stk::StkFrames::frames
unsigned int frames(void) const
Return the number of sample frames represented by the data.
Definition: Stk.h:407
stk::SingWave::reset
void reset(void)
Reset file to beginning.
Definition: SingWave.h:42
stk::SingWave::setVibratoRate
void setVibratoRate(StkFloat rate)
Set the vibrato frequency in Hz.
Definition: SingWave.h:54
stk::Modulate::setVibratoRate
void setVibratoRate(StkFloat rate)
Set the periodic (vibrato) rate or frequency in Hz.
Definition: Modulate.h:39
stk::FileLoop::tick
StkFloat tick(unsigned int channel=0)
Compute a sample frame and return the specified channel value.
stk::Modulate::setVibratoGain
void setVibratoGain(StkFloat gain)
Set the periodic (vibrato) gain.
Definition: Modulate.h:42
stk::SingWave::noteOn
void noteOn(void)
Start a note.
Definition: SingWave.h:72
stk::SingWave::normalize
void normalize(void)
Normalize the file to a maximum of +-1.0.
Definition: SingWave.h:45
stk::Envelope::setRate
void setRate(StkFloat rate)
Set the rate.
stk
The STK namespace.
Definition: ADSR.h:6
stk::Envelope
STK linear line envelope class.
Definition: Envelope.h:21
stk::Modulate::tick
StkFloat tick(void)
Compute and return one output sample.
Definition: Modulate.h:80
stk::SingWave::tick
StkFloat tick(void)
Compute and return one output sample.
Definition: SingWave.h:104
stk::SingWave::setVibratoGain
void setVibratoGain(StkFloat gain)
Set the vibrato gain.
Definition: SingWave.h:57
stk::FileLoop
STK file looping / oscillator class.
Definition: FileLoop.h:26
stk::SingWave::setRandomGain
void setRandomGain(StkFloat gain)
Set the random-ness amount.
Definition: SingWave.h:60
stk::SingWave::~SingWave
~SingWave(void)
Class destructor.
stk::FileLoop::setRate
void setRate(StkFloat rate)
Set the data read rate in samples. The rate can be negative.
stk::SingWave::setGainTarget
void setGainTarget(StkFloat target)
Set the gain target value.
Definition: SingWave.h:69
stk::Modulate
STK periodic/random modulator.
Definition: Modulate.h:23
stk::StkFrames::channels
unsigned int channels(void) const
Return the number of channels represented by the data.
Definition: Stk.h:404
stk::SingWave
STK "singing" looped soundfile class.
Definition: SingWave.h:25
stk::FileLoop::reset
void reset(void)
Clear outputs and reset time (file) pointer to zero.
Definition: FileLoop.h:57
stk::Modulate::setRandomGain
void setRandomGain(StkFloat gain)
Set the random modulation gain.
stk::SingWave::setGainRate
void setGainRate(StkFloat rate)
Set the gain rate.
Definition: SingWave.h:66
stk::Generator
STK abstract unit generator parent class.
Definition: Generator.h:20
stk::SingWave::setSweepRate
void setSweepRate(StkFloat rate)
Set the sweep rate.
Definition: SingWave.h:63
stk::StkFrames
An STK class to handle vectorized audio data.
Definition: Stk.h:275
stk::FileLoop::normalize
void normalize(void)
Normalize data to a maximum of +-1.0.
Definition: FileLoop.h:67
stk::Envelope::tick
StkFloat tick(void)
Compute and return one output sample.
Definition: Envelope.h:88
stk::SingWave::noteOff
void noteOff(void)
Stop a note.
Definition: SingWave.h:75
stk::Envelope::keyOff
void keyOff(void)
Set target = 0.
Definition: Envelope.h:38
stk::Envelope::keyOn
void keyOn(void)
Set target = 1.
Definition: Envelope.h:35
stk::SingWave::normalize
void normalize(StkFloat peak)
Normalize the file to a maximum of +- peak.
Definition: SingWave.h:48
stk::SingWave::lastOut
StkFloat lastOut(void) const
Return the last computed output value.
Definition: SingWave.h:78

The Synthesis ToolKit in C++ (STK)
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