Typedefs
typedef struct SDTPitchShift	SDTPitchShift
	Opaque data structure for a pitch shifter object.

typedef struct SDTPitchShift	SDTPitchShift
	Opaque data structure for a pitch shifter object.

Functions
SDTPitchShift *	SDTPitchShift_new (int size, int oversample)
	Object constructor. More...

void	SDTPitchShift_free (SDTPitchShift *x)
	Object destructor. More...

void	SDTPitchShift_setRatio (SDTPitchShift *x, double f)
	Sets the pitch shifting ratio. More...

void	SDTPitchShift_setOverlap (SDTPitchShift *x, double f)
	Sets the analysis window overlapping ratio. Accepted values go from 0.0 to 1.0, with 0.0 meaning no overlap and 1.0 meaning total overlap. More...

double	SDTPitchShift_dsp (SDTPitchShift *x, double in)
	Signal processing routine. Call this function at sample rate to compute the pitch shifted signal. More...

Detailed Description

Frequency domain pitch shifter, useful to simulate doppler effect or other applications requiring pitch shifting.

Function Documentation

Signal processing routine. Call this function at sample rate to compute the pitch shifted signal.

Parameters

[in] in Input sample

void SDTPitchShift_free ( SDTPitchShift * x )

Object destructor.

Parameters

[in] x Pointer to the instance to destroy

SDTPitchShift * SDTPitchShift_new	(	int	size,
		int	oversample
	)

Object constructor.

Parameters

[in]	size	Internal buffer size, in samples
[in]	oversample	FFT oversampling rate

void SDTPitchShift_setOverlap	(	SDTPitchShift *	x,
		double	f
	)

Sets the analysis window overlapping ratio. Accepted values go from 0.0 to 1.0, with 0.0 meaning no overlap and 1.0 meaning total overlap.

Parameters

[in]	x	Pointer to the instance
[in]	f	Overlap ratio [0.0, 1.0]

void SDTPitchShift_setRatio	(	SDTPitchShift *	x,
		double	f
	)

Sets the pitch shifting ratio.

Parameters

[in] f New pitch / original pitch ratio