One pole filter

Typedefs
typedef struct SDTOnePole	SDTOnePole
	Opaque data structure for a one pole filter object.
typedef struct SDTOnePole	SDTOnePole
	Opaque data structure for a one pole filter object.

Functions
SDTOnePole *	SDTOnePole_new ()
	Object constructor. More...
void	SDTOnePole_free (SDTOnePole *x)
	Object destructor. More...
void	SDTOnePole_setFeedback (SDTOnePole *x, double f)
	Manually sets the alpha coefficient. More...
void	SDTOnePole_lowpass (SDTOnePole *x, double f)
	Puts the filter in lowpass mode, at the given cutoff frequency. More...
void	SDTOnePole_highpass (SDTOnePole *x, double f)
	Puts the filter in highpass mode, at the given cutoff frequency. More...
double	SDTOnePole_dsp (SDTOnePole *x, double in)
	Signal processing routine. Call this function at sample rate to compute the filtered signal. More...

Detailed Description

Simple one pole filter.

Function Documentation

double SDTOnePole_dsp	(	SDTOnePole *	x,
		double	in
	)

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

Parameters

[in]

in

Input sample

Returns

Output sample

void SDTOnePole_free

(

SDTOnePole *

x

)

Object destructor.

Parameters

[in]

x

Pointer to the instance to destroy

void SDTOnePole_highpass	(	SDTOnePole *	x,
		double	f
	)

Puts the filter in highpass mode, at the given cutoff frequency.

Parameters

[in]

f

Cutoff frequency, in Hz

void SDTOnePole_lowpass	(	SDTOnePole *	x,
		double	f
	)

Puts the filter in lowpass mode, at the given cutoff frequency.

Parameters

[in]

f

Cutoff frequency, in Hz

SDTOnePole * SDTOnePole_new

(

)

Object constructor.

Returns

Pointer to the new instance

void SDTOnePole_setFeedback	(	SDTOnePole *	x,
		double	f
	)

Manually sets the alpha coefficient.

Parameters

[in]

f

Weight of the input sample