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stk::Shakers Class Reference

PhISEM and PhOLIES class. More...

#include <Shakers.h>

Inheritance diagram for stk::Shakers:
stk::Instrmnt stk::Stk

Public Member Functions

 Shakers (int type=0)
 Class constructor taking instrument type argument.
 
void noteOn (StkFloat instrument, StkFloat amplitude)
 Start a note with the given instrument and amplitude. More...
 
void noteOff (StkFloat amplitude)
 Stop a note with the given amplitude (speed of decay).
 
void controlChange (int number, StkFloat value)
 Perform the control change specified by number and value (0.0 - 128.0).
 
StkFloat tick (unsigned int channel=0)
 Compute and return one output sample.
 
StkFramestick (StkFrames &frames, unsigned int channel=0)
 Fill a channel of the StkFrames object with computed outputs. More...
 
- Public Member Functions inherited from stk::Instrmnt
 Instrmnt (void)
 Class constructor.
 
virtual void clear (void)
 Reset and clear all internal state (for subclasses). More...
 
virtual void setFrequency (StkFloat frequency)
 Set instrument parameters for a particular frequency.
 
unsigned int channelsOut (void) const
 Return the number of output channels for the class.
 
const StkFrameslastFrame (void) const
 Return an StkFrames reference to the last output sample frame.
 
StkFloat lastOut (unsigned int channel=0)
 Return the specified channel value of the last computed frame. More...
 
- Public Member Functions inherited from stk::Stk
void ignoreSampleRateChange (bool ignore=true)
 A function to enable/disable the automatic updating of class data when the STK sample rate changes. More...
 

Additional Inherited Members

- Static Public Member Functions inherited from stk::Stk
static StkFloat sampleRate (void)
 Static method that returns the current STK sample rate.
 
static void setSampleRate (StkFloat rate)
 Static method that sets the STK sample rate. More...
 
static std::string rawwavePath (void)
 Static method that returns the current rawwave path.
 
static void setRawwavePath (std::string path)
 Static method that sets the STK rawwave path.
 
static void swap16 (unsigned char *ptr)
 Static method that byte-swaps a 16-bit data type.
 
static void swap32 (unsigned char *ptr)
 Static method that byte-swaps a 32-bit data type.
 
static void swap64 (unsigned char *ptr)
 Static method that byte-swaps a 64-bit data type.
 
static void sleep (unsigned long milliseconds)
 Static cross-platform method to sleep for a number of milliseconds.
 
static bool inRange (StkFloat value, StkFloat min, StkFloat max)
 Static method to check whether a value is within a specified range.
 
static void handleError (const char *message, StkError::Type type)
 Static function for error reporting and handling using c-strings.
 
static void handleError (std::string message, StkError::Type type)
 Static function for error reporting and handling using c++ strings.
 
static void showWarnings (bool status)
 Toggle display of WARNING and STATUS messages.
 
static void printErrors (bool status)
 Toggle display of error messages before throwing exceptions.
 
- Static Public Attributes inherited from stk::Stk
static const StkFormat STK_SINT8
 
static const StkFormat STK_SINT16
 
static const StkFormat STK_SINT24
 
static const StkFormat STK_SINT32
 
static const StkFormat STK_FLOAT32
 
static const StkFormat STK_FLOAT64
 
- Protected Member Functions inherited from stk::Stk
 Stk (void)
 Default constructor.
 
virtual ~Stk (void)
 Class destructor.
 
virtual void sampleRateChanged (StkFloat newRate, StkFloat oldRate)
 This function should be implemented in subclasses that depend on the sample rate.
 
void addSampleRateAlert (Stk *ptr)
 Add class pointer to list for sample rate change notification.
 
void removeSampleRateAlert (Stk *ptr)
 Remove class pointer from list for sample rate change notification.
 
void handleError (StkError::Type type) const
 Internal function for error reporting that assumes message in oStream_ variable.
 

Detailed Description

PhISEM and PhOLIES class.

PhISEM (Physically Informed Stochastic Event Modeling) is an algorithmic approach for simulating collisions of multiple independent sound producing objects. This class is a meta-model that can simulate a Maraca, Sekere, Cabasa, Bamboo Wind Chimes, Water Drops, Tambourine, Sleighbells, and a Guiro.

PhOLIES (Physically-Oriented Library of Imitated Environmental Sounds) is a similar approach for the synthesis of environmental sounds. This class implements simulations of breaking sticks, crunchy snow (or not), a wrench, sandpaper, and more.

Control Change Numbers:

by Perry R. Cook with updates by Gary Scavone, 1995–2014.

Member Function Documentation

void stk::Shakers::noteOn ( StkFloat  instrument,
StkFloat  amplitude 
)
virtual

Start a note with the given instrument and amplitude.

Use the instrument numbers above, converted to frequency values as if MIDI note numbers, to select a particular instrument.

Implements stk::Instrmnt.

StkFrames & stk::Shakers::tick ( StkFrames frames,
unsigned int  channel = 0 
)
inlinevirtual

Fill a channel of the StkFrames object with computed outputs.

The channel argument must be less than the number of channels in the StkFrames argument (the first channel is specified by 0). However, range checking is only performed if STK_DEBUG is defined during compilation, in which case an out-of-range value will trigger an StkError exception.

Implements stk::Instrmnt.

304 {
305  unsigned int nChannels = lastFrame_.channels();
306 #if defined(_STK_DEBUG_)
307  if ( channel > frames.channels() - nChannels ) {
308  oStream_ << "Shakers::tick(): channel and StkFrames arguments are incompatible!";
309  handleError( StkError::FUNCTION_ARGUMENT );
310  }
311 #endif
312 
313  StkFloat *samples = &frames[channel];
314  unsigned int j, hop = frames.channels() - nChannels;
315  if ( nChannels == 1 ) {
316  for ( unsigned int i=0; i<frames.frames(); i++, samples += hop )
317  *samples++ = tick();
318  }
319  else {
320  for ( unsigned int i=0; i<frames.frames(); i++, samples += hop ) {
321  *samples++ = tick();
322  for ( j=1; j<nChannels; j++ )
323  *samples++ = lastFrame_[j];
324  }
325  }
326 
327  return frames;
328 }

The documentation for this class was generated from the following file:

The Synthesis ToolKit in C++ (STK)
©1995--2014 Perry R. Cook and Gary P. Scavone. All Rights Reserved.