IIR< T > Class Template Reference

Infinite Impulse Response (IIR) filter. Uses both feedforward (b[]) and feedback (a[]) coefficients. The a[0] coefficient is used to normalize all other coefficients. For integer types, an optional scaling factor is applied to preserve precision. More...

#include <Filter.h>

Inheritance diagram for IIR< T >:

Public Member Functions
template<size_t B, size_t A>
	IIR (const T(&b)[B], const T(&_a)[A], T factor=1.0)
T	process (T value) override
	Processes the input value and returns the filtered output value.
void	reset () override

Detailed Description

template<typename T>
class audio_tools::IIR< T >

Infinite Impulse Response (IIR) filter. Uses both feedforward (b[]) and feedback (a[]) coefficients. The a[0] coefficient is used to normalize all other coefficients. For integer types, an optional scaling factor is applied to preserve precision.

Author

Pieter P tttapa / pschatzmann

Copyright

GNU General Public License v3.0

Template Parameters

T	sample type (float, double, or integer types with a scaling factor)

Constructor & Destructor Documentation

IIR()

template<typename T >

template<size_t B, size_t A>

IIR ( const T(&)  b[B], const T(&)  _a[A], T  factor = 1.0  )

inline

Member Function Documentation

process()

template<typename T >

T process ( T  in )

inlineoverridevirtual

Processes the input value and returns the filtered output value.

Implements Filter< T >.

reset()

template<typename T >

void reset ( )

inlineoverridevirtual

Clears the internal state (delay lines) without changing the coefficients. Call after reconfiguring filter parameters via begin() to avoid transients from stale state.

Reimplemented from Filter< T >.

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

• src/AudioTools/CoreAudio/AudioFilter/Filter.h