csl::Butter Class Reference

#include <Filters.h>

Inheritance diagram for csl::Butter:

List of all members.

---

Detailed Description

Butterworth IIR (2nd order recursive) filter. This operates upon a buffer of frames of amplitude samples by applying the following equation y(n) = a0*x(n) + a1*x(n-1) + a2*x(n-2) - b1*y(n-1) - b2*y(n-2) where x is an amplitude sample. It has constructors that can calculate the coefficients from a given cutoff frequency.

Public Member Functions
	Butter ()
	Butter (int type, float cutoff)
	Butter (int type, float center, float bandwidth)
	Butter (UnitGenerator &in, ButterworthType type, float cutoff)
	Butter (UnitGenerator &in, ButterworthType type, UnitGenerator &cutoff)
	Butter (UnitGenerator &in, ButterworthType type, float center, float bandwidth)
	Butter (UnitGenerator &in, ButterworthType type, UnitGenerator &center, UnitGenerator &bandwidth)
void	setupCoeffs ()
Protected Attributes
int	mFilterType

---

Constructor & Destructor Documentation

Butter::Butter (   )

Butterworth IIR (2nd order recursive) filter. This operates upon a buffer of frames of amplitude samples by applying the following equation y(n) = a0*x(n) + a1*x(n-1) + a2*x(n-2) - b1*y(n-1) - b2*y(n-2) where x is an amplitude sample. It has constructors that can calculate the coefficients from a given cutoff frequency.

Butter::Butter (  int  type, float  cutoff )

Butter::Butter (  int  type, float  center, float  bandwidth )

Butter::Butter (  UnitGenerator &  in, ButterworthType  type, float  cutoff )

Butter::Butter (  UnitGenerator &  in, ButterworthType  type, UnitGenerator &  cutoff )

Butter::Butter (  UnitGenerator &  in, ButterworthType  type, float  center, float  bandwidth )

Butter::Butter (  UnitGenerator &  in, ButterworthType  type, UnitGenerator &  center, UnitGenerator &  bandwidth )

---

Member Function Documentation

void Butter::setupCoeffs (   )  [virtual]

Reimplemented from csl::Filter.

---

Member Data Documentation

int csl::Butter::mFilterType [protected]

---

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

• CSL/Processors/Filters.h
• CSL/Processors/Filters.cpp

---