sfFDN::CascadedBiquads Class Reference

Implements a cascade of biquad IIR filters. More...

#include <filter.h>

Inheritance diagram for sfFDN::CascadedBiquads:

Collaboration diagram for sfFDN::CascadedBiquads:

Classes
struct	IIRState
	Represents the internal state of the IIR filter. More...

Public Member Functions
	CascadedBiquads (const CascadedBiquadsOptions &config={})
	Constructs a cascaded biquad filter.
void	SetCoefficients (std::span< const FilterCoefficients > coeffs)
	Sets the biquad coefficients for each stage.
float	Tick (float in)
	Processes a single input sample through the filter.
void	Process (const AudioBuffer &input, AudioBuffer &output) noexcept override
	Processes a block of input samples through the filter.
uint32_t	InputChannelCount () const override
	Returns the number of input channels supported by this processor.
uint32_t	OutputChannelCount () const override
	Returns the number of output channels produced by this processor.
void	Clear () override
	Clears the internal state of the processor.
std::unique_ptr< AudioProcessor >	Clone () const override
	Creates a copy of the filter.
Public Member Functions inherited from sfFDN::AudioProcessor

Detailed Description

Implements a cascade of biquad IIR filters.

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Class Documentation

sfFDN::CascadedBiquads::IIRState

struct sfFDN::CascadedBiquads::IIRState

Represents the internal state of the IIR filter.

Class Members
float	s0
float	s1

Member Function Documentation

Clear()

void sfFDN::CascadedBiquads::Clear ( )

overridevirtual

Clears the internal state of the processor.

This function resets the internal state of all biquad stages to zero.

Implements sfFDN::AudioProcessor.

Clone()

std::unique_ptr< AudioProcessor > sfFDN::CascadedBiquads::Clone ( ) const

overridevirtual

Creates a copy of the filter.

Returns

A unique pointer to the cloned filter.

Implements sfFDN::AudioProcessor.

InputChannelCount()

uint32_t sfFDN::CascadedBiquads::InputChannelCount ( ) const

overridevirtual

Returns the number of input channels supported by this processor.

Returns

The number of input channels.

Implements sfFDN::AudioProcessor.

OutputChannelCount()

uint32_t sfFDN::CascadedBiquads::OutputChannelCount ( ) const

overridevirtual

Returns the number of output channels produced by this processor.

Returns

The number of output channels.

Implements sfFDN::AudioProcessor.

Process()

void sfFDN::CascadedBiquads::Process ( const AudioBuffer & input, AudioBuffer & output )

overridevirtualnoexcept

Processes a block of input samples through the filter.

Parameters

input	The input audio buffer.
output	The output audio buffer. The input and output buffers must have the same number of channels and sample count.

Implements sfFDN::AudioProcessor.

SetCoefficients()

void sfFDN::CascadedBiquads::SetCoefficients

(

std::span< const FilterCoefficients >

coeffs

)

Sets the biquad coefficients for each stage.

Parameters

coeffs

A span of FilterCoefficients, one for each biquad stage.

Tick()

float sfFDN::CascadedBiquads::Tick

(

float

in

)

Processes a single input sample through the filter.

Parameters

in	The input sample.

Returns

The output sample.

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

• include/sffdn/filter.h