zyncarla::AnalogFilter Class Reference

#include <AnalogFilter.h>

Inheritance diagram for zyncarla::AnalogFilter:

Classes
struct	Coeff
struct	fstage

Public Member Functions
	AnalogFilter (unsigned char Ftype, float Ffreq, float Fq, unsigned char Fstages, unsigned int srate, int bufsize)
	~AnalogFilter ()
void	filterout (float *smp)
void	setfreq (float frequency)
void	setfreq_and_q (float frequency, float q_)
void	setq (float q_)
void	settype (int type_)
void	setgain (float dBgain)
void	setstages (int stages_)
void	cleanup ()
float	H (float freq)
Public Member Functions inherited from zyncarla::Filter
	Filter (unsigned int srate, int bufsize)
virtual	~Filter ()

Static Public Member Functions
static Coeff	computeCoeff (int type, float cutoff, float q, int stages, float gain, float fs, int &order)
Static Public Member Functions inherited from zyncarla::Filter
static float	getrealfreq (float freqpitch)
static Filter *	generate (Allocator &memory, const FilterParams *pars, unsigned int srate, int bufsize)

Public Attributes
struct zyncarla::AnalogFilter::Coeff	coeff
struct zyncarla::AnalogFilter::Coeff	oldCoeff

Private Member Functions
void	singlefilterout (float *smp, fstage &hist, const Coeff &coeff)
void	computefiltercoefs (void)

Private Attributes
struct zyncarla::AnalogFilter::fstage	history [MAX_FILTER_STAGES+1]
struct zyncarla::AnalogFilter::fstage	oldHistory [MAX_FILTER_STAGES+1]
int	type
int	stages
float	freq
float	q
float	gain
int	order
bool	needsinterpolation
bool	firsttime
bool	abovenq
bool	oldabovenq

Additional Inherited Members
Protected Member Functions inherited from zyncarla::Filter
void	alias ()
Protected Attributes inherited from zyncarla::Filter
float	outgain
unsigned int	samplerate
int	buffersize
float	samplerate_f
float	halfsamplerate_f
float	buffersize_f
int	bufferbytes

Detailed Description

Implementation of Several analog filters (lowpass, highpass...) Implemented with IIR filters Coefficients generated with "Cookbook formulae for audio EQ"

Constructor & Destructor Documentation

AnalogFilter()

AnalogFilter::AnalogFilter	(	unsigned char	Ftype,
		float	Ffreq,
		float	Fq,
		unsigned char	Fstages,
		unsigned int	srate,
		int	bufsize )

~AnalogFilter()

AnalogFilter::~AnalogFilter

(

)

Member Function Documentation

cleanup()

void AnalogFilter::cleanup

(

)

computeCoeff()

AnalogFilter::Coeff AnalogFilter::computeCoeff ( int type, float cutoff, float q, int stages, float gain, float fs, int & order )

static

computefiltercoefs()

void AnalogFilter::computefiltercoefs ( void )

private

filterout()

void AnalogFilter::filterout ( float * smp )

virtual

Implements zyncarla::Filter.

H()

float AnalogFilter::H

(

float

freq

)

setfreq()

void AnalogFilter::setfreq ( float frequency )

virtual

Implements zyncarla::Filter.

setfreq_and_q()

void AnalogFilter::setfreq_and_q ( float frequency, float q_ )

virtual

Implements zyncarla::Filter.

setgain()

void AnalogFilter::setgain ( float dBgain )

virtual

Implements zyncarla::Filter.

setq()

void AnalogFilter::setq ( float q_ )

virtual

Implements zyncarla::Filter.

setstages()

void AnalogFilter::setstages

(

int

stages_

)

settype()

void AnalogFilter::settype

(

int

type_

)

singlefilterout()

void AnalogFilter::singlefilterout ( float * smp, fstage & hist, const Coeff & coeff )

private

Member Data Documentation

abovenq

bool zyncarla::AnalogFilter::abovenq

private

coeff

struct zyncarla::AnalogFilter::Coeff zyncarla::AnalogFilter::coeff

firsttime

bool zyncarla::AnalogFilter::firsttime

private

freq

float zyncarla::AnalogFilter::freq

private

gain

float zyncarla::AnalogFilter::gain

private

history

struct zyncarla::AnalogFilter::fstage zyncarla::AnalogFilter::history[MAX_FILTER_STAGES + 1]

private

needsinterpolation

bool zyncarla::AnalogFilter::needsinterpolation

private

oldabovenq

bool zyncarla::AnalogFilter::oldabovenq

private

oldCoeff

struct zyncarla::AnalogFilter::Coeff zyncarla::AnalogFilter::oldCoeff

oldHistory

struct zyncarla::AnalogFilter::fstage zyncarla::AnalogFilter::oldHistory[MAX_FILTER_STAGES + 1]

private

order

int zyncarla::AnalogFilter::order

private

q

float zyncarla::AnalogFilter::q

private

stages

int zyncarla::AnalogFilter::stages

private

type

int zyncarla::AnalogFilter::type

private

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

• /home/runner/work/lmms-fork/lmms-fork/plugins/CarlaBase/carla/source/native-plugins/external/zynaddsubfx/DSP/AnalogFilter.h
• /home/runner/work/lmms-fork/lmms-fork/plugins/CarlaBase/carla/source/native-plugins/external/zynaddsubfx/DSP/AnalogFilter.cpp