FilterCoefficientMaker< TuningProvider > Class Template Reference

Class for creating filter coefficients. More...

Public Member Functions
	FilterCoefficientMaker ()
	Default constructor. More...
void	setSampleRateAndBlockSize (float newSampleRate, int newBlockSize)
	Sets the sample rate and block size to use for processing the filters. More...
void	Reset ()
	Resets the coefficients to zero, and the tuning provider to nullptr. More...
void	FromDirect (const float(&N)[n_cm_coeffs])
	Creates filter coefficients directly from an array. More...
void	MakeCoeffs (float Freq, float Reso, FilterType Type, FilterSubType SubType, TuningProvider *provider, bool tuningAdjusted)
	Creates filter coefficients for a given set of filter parameters. More...
template<typename StateType >
void	updateState (StateType &state, int channel=-1)
	Update the coefficients in a filter state. More...
template<typename StateType >
void	updateCoefficients (StateType &state, int channel=0)
	Update the local coefficients with the coefficients from the filter state. More...

Public Attributes
float	C [n_cm_coeffs] {}
	Current filter coefficients. More...
float	dC [n_cm_coeffs] {}
	Filter coefficients "delta" to update current coefficients. More...
float	tC [n_cm_coeffs] {}
	"Target" filter coefficients More...

Detailed Description

template<typename TuningProvider = detail::BasicTuningProvider>
class sst::filters::FilterCoefficientMaker< TuningProvider >

Class for creating filter coefficients.

Template Parameters

TuningProvider

A 12-TET tuning provider is used by default, but if you would like to support other tunings, you should use a custom tuning provider.

Constructor & Destructor Documentation

FilterCoefficientMaker()

FilterCoefficientMaker

Default constructor.

Member Function Documentation

setSampleRateAndBlockSize()

void setSampleRateAndBlockSize	(	float	newSampleRate,
		int	newBlockSize
	)

Sets the sample rate and block size to use for processing the filters.

Reset()

void Reset

Resets the coefficients to zero, and the tuning provider to nullptr.

References C, and sst::filters::n_cm_coeffs.

FromDirect()

void FromDirect

(

const float(&)

N[n_cm_coeffs]

)

Creates filter coefficients directly from an array.

References C, N, sst::filters::n_cm_coeffs, and sst::filters::smooth.

Referenced by sst::filters::DiodeLadderFilter::makeCoefficients(), sst::filters::OBXDFilter::makeCoefficients(), sst::filters::ResonanceWarp::makeCoefficients(), sst::filters::VintageLadder::RK::makeCoefficients(), sst::filters::CutoffWarp::makeCoefficients(), sst::filters::TriPoleFilter::makeCoefficients(), and sst::filters::VintageLadder::Huov::makeCoefficients().

MakeCoeffs()

void MakeCoeffs	(	float	Freq,
		float	Reso,
		FilterType	Type,
		FilterSubType	SubType,
		TuningProvider *	provider,
		bool	tuningAdjusted
	)

Creates filter coefficients for a given set of filter parameters.

Note that frequency is expected in units of MIDI note number, with A440 = 0.

References sst::filters::OBXDFilter::FOUR_POLE, sst::filters::fut_apf, sst::filters::fut_bp12, sst::filters::fut_bp24, sst::filters::fut_comb_neg, sst::filters::fut_comb_pos, sst::filters::fut_cutoffwarp_ap, sst::filters::fut_cutoffwarp_bp, sst::filters::fut_cutoffwarp_hp, sst::filters::fut_cutoffwarp_lp, sst::filters::fut_cutoffwarp_n, sst::filters::fut_diode, sst::filters::fut_hp12, sst::filters::fut_hp24, sst::filters::fut_k35_hp, sst::filters::fut_k35_lp, sst::filters::fut_k35_saturations, sst::filters::fut_lp12, sst::filters::fut_lp24, sst::filters::fut_lpmoog, sst::filters::fut_none, sst::filters::fut_notch12, sst::filters::fut_notch24, sst::filters::fut_obxd_2pole_bp, sst::filters::fut_obxd_2pole_hp, sst::filters::fut_obxd_2pole_lp, sst::filters::fut_obxd_2pole_n, sst::filters::fut_obxd_4pole, sst::filters::fut_resonancewarp_ap, sst::filters::fut_resonancewarp_bp, sst::filters::fut_resonancewarp_hp, sst::filters::fut_resonancewarp_lp, sst::filters::fut_resonancewarp_n, sst::filters::fut_SNH, sst::filters::fut_tripole, sst::filters::fut_vintageladder, sst::filters::K35Filter::makeCoefficients(), sst::filters::DiodeLadderFilter::makeCoefficients(), sst::filters::OBXDFilter::makeCoefficients(), sst::filters::ResonanceWarp::makeCoefficients(), sst::filters::VintageLadder::RK::makeCoefficients(), sst::filters::CutoffWarp::makeCoefficients(), sst::filters::TriPoleFilter::makeCoefficients(), sst::filters::VintageLadder::Huov::makeCoefficients(), sst::filters::num_filter_types, sst::filters::st_Standard, and sst::filters::OBXDFilter::TWO_POLE.

updateState()

void updateState	(	StateType &	state,
		int	channel = -1
	)

Update the coefficients in a filter state.

To update the coefficients for a single channel, pass a channel index to the channel argument, otherwise the same coefficients will be used for all channels.

References C, sst::filters::n_cm_coeffs, and sst::filters::detail::set1f().

updateCoefficients()

void updateCoefficients	(	StateType &	state,
		int	channel = 0
	)

Update the local coefficients with the coefficients from the filter state.

This is necessary since the filter state is responsible for smoothing the filter coefficients.

References C, sst::filters::detail::get1f(), and sst::filters::n_cm_coeffs.

Member Data Documentation

C

float C[n_cm_coeffs] {}

Current filter coefficients.

dC

float dC[n_cm_coeffs] {}

Filter coefficients "delta" to update current coefficients.

tC

float tC[n_cm_coeffs] {}

"Target" filter coefficients

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

• FilterCoefficientMaker.h
• FilterCoefficientMaker_Impl.h