apf::BiQuad< T, DenormalPrevention > Class Template Reference

Direct Form II recursive filter of second order. More...

#include <apf/biquad.h>

Inheritance diagram for apf::BiQuad< T, DenormalPrevention >:

Public Types
using	argument_type = T
using	result_type = T

Public Member Functions
BiQuad &	operator= (const SosCoefficients< T > &c)
	Assignment operator. More...
result_type	operator() (argument_type in)
	Process filter on single sample. More...
Public Member Functions inherited from apf::SosCoefficients< T >
	SosCoefficients (T b0_=T(), T b1_=T(), T b2_=T(), T a1_=T(), T a2_=T())
SosCoefficients &	operator+= (const SosCoefficients &rhs)
SosCoefficients	operator+ (const SosCoefficients &rhs) const
SosCoefficients &	operator*= (T rhs)
SosCoefficients	operator* (T rhs) const
SosCoefficients &	operator/= (T rhs)
SosCoefficients	operator/ (T rhs) const

Public Attributes
T	w0
T	w1
T	w2
Public Attributes inherited from apf::SosCoefficients< T >
T	b0
T	b1
T	b2
T	a1
T	a2

Detailed Description

template<typename T, template< typename > class DenormalPrevention = apf::dp::ac>
class apf::BiQuad< T, DenormalPrevention >

Direct Form II recursive filter of second order.

Template Parameters

T	internal type of states and coefficients
DenormalPrevention	method of denormal prevention (see apf::dp)

See also

Cascade, bilinear()

Definition at line 145 of file biquad.h.

Member Typedef Documentation

argument_type

template<typename T , template< typename > class DenormalPrevention = apf::dp::ac>

using apf::BiQuad< T, DenormalPrevention >::argument_type = T

Definition at line 148 of file biquad.h.

result_type

template<typename T , template< typename > class DenormalPrevention = apf::dp::ac>

using apf::BiQuad< T, DenormalPrevention >::result_type = T

Definition at line 149 of file biquad.h.

Constructor & Destructor Documentation

BiQuad()

template<typename T , template< typename > class DenormalPrevention = apf::dp::ac>

apf::BiQuad< T, DenormalPrevention >::BiQuad ( )

inline

Definition at line 151 of file biquad.h.

Member Function Documentation

operator=()

template<typename T , template< typename > class DenormalPrevention = apf::dp::ac>

BiQuad & apf::BiQuad< T, DenormalPrevention >::operator= ( const SosCoefficients< T > &  c )

inline

Assignment operator.

Change coefficients when operator '=' is called with SosCoefficients.

Parameters

c	New set of coefficients

Note

state is unchanged!

Definition at line 157 of file biquad.h.

operator()()

template<typename T , template< typename > class DenormalPrevention = apf::dp::ac>

result_type apf::BiQuad< T, DenormalPrevention >::operator() ( argument_type  in )

inline

Process filter on single sample.

Parameters

in	input sample

Returns

output sample

Definition at line 166 of file biquad.h.

Member Data Documentation

w0

template<typename T , template< typename > class DenormalPrevention = apf::dp::ac>

T apf::BiQuad< T, DenormalPrevention >::w0

Definition at line 179 of file biquad.h.

w1

template<typename T , template< typename > class DenormalPrevention = apf::dp::ac>

T apf::BiQuad< T, DenormalPrevention >::w1

Definition at line 179 of file biquad.h.

w2

template<typename T , template< typename > class DenormalPrevention = apf::dp::ac>

T apf::BiQuad< T, DenormalPrevention >::w2

Definition at line 179 of file biquad.h.

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

• apf/biquad.h