SDTMotor.h File Reference

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Typedefs
typedef struct SDTMotor	SDTMotor
	Opaque data structure representing a combustion engine object.

Functions
SDTMotor *	SDTMotor_new (long maxDelay)
	Object constructor. More...
void	SDTMotor_free (SDTMotor *x)
	Object destructor. More...
void	SDTMotor_setFilters (SDTMotor *x, double damp, double dc)
	Update filter coefficients. Should be always called after setting the sampling rate with SDT_setSampleRate(). More...
void	SDTMotor_setRpm (SDTMotor *x, double f)
	Sets the Revolutions Per Minute (RPM) of the engine. More...
void	SDTMotor_setThrottle (SDTMotor *x, double f)
	Sets the throttle load. More...
void	SDTMotor_setFourStroke (SDTMotor *x)
	Simulates the operation cycle of a four-stroke engine.
void	SDTMotor_setTwoStroke (SDTMotor *x)
	Simulates the operation cycle of a two-stroke engine.
void	SDTMotor_setNCylinders (SDTMotor *x, int i)
	Sets the number of cylinders in the engine block. More...
void	SDTMotor_setCylinderSize (SDTMotor *x, double f)
	Sets the size of each single cylinder. The total volume of the engine is this value multiplied by the number of cylinders. More...
void	SDTMotor_setCompressionRatio (SDTMotor *x, double f)
	Sets the compression ratio of the engine. The compression ratio is computed dividing the cylinder volume at maximum expansion (piston down) by its volume at maximum compression (piston up). More...
void	SDTMotor_setSparkTime (SDTMotor *x, double f)
	Sets the width of the ignition pulse, compared to a full operation cycle. More...
void	SDTMotor_setAsymmetry (SDTMotor *x, double f)
	Sets the amount of irregularity in the operation cycle. More...
void	SDTMotor_setBackfire (SDTMotor *x, double f)
	Sets the amount of backfiring when the engine revs down. More...
void	SDTMotor_setIntakeSize (SDTMotor *x, double f)
	Sets the average length of the intake pipes. More...
void	SDTMotor_setExtractorSize (SDTMotor *x, double f)
	Sets the average length of the extractor pipes. More...
void	SDTMotor_setExhaustSize (SDTMotor *x, double f)
	Sets the length of the main exhaust pipe. More...
void	SDTMotor_setExpansion (SDTMotor *x, double f)
	Sets the amount of expansion of the main exhaust pipe. This is a feature commonly found in two-stroke engines, to avoid the passage of fresh fuel mixture into the exhaust system. More...
void	SDTMotor_setMufflerSize (SDTMotor *x, double f)
	Sets the average length of the muffler chambers. More...
void	SDTMotor_setMufflerFeedback (SDTMotor *x, double f)
	Sets the amount of energy dissipated by the muffler chambers. More...
void	SDTMotor_setOutletSize (SDTMotor *x, double f)
	Sets the length of the exhaust outlet. More...
void	SDTMotor_dsp (SDTMotor *x, double *outs)
	Signal processing routine. Call this function at sample rate to synthesize the engine sound. The output is written in an array of three doubles. The first value represents the sound picked up at the intakes, from the front of the vehicle; the second represents the engine vibrations, mostly heard inside the cabin; the third and last output represents the sound coming from the exhaust outlet, towards the rear of the vehicle. More...