sfFDN::AllpassFilter Class Reference

Implements a simple allpass filter with differential equation \(y(n) = g*x(n) + x(n-1) -g*y(n-1)\). More...

#include <filter.h>

Inheritance diagram for sfFDN::AllpassFilter:

Collaboration diagram for sfFDN::AllpassFilter:

Public Member Functions
	AllpassFilter (const AllpassFilterOptions &config={})
	Constructs an allpass filter.
void	SetCoefficients (float coeff)
	Sets the allpass coefficient.
float	Tick (float in)
	Input a sample in the filter and return the next output.
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 simple allpass filter with differential equation \(y(n) = g*x(n) + x(n-1) -g*y(n-1)\).

Member Function Documentation

Clear()

void sfFDN::AllpassFilter::Clear ( )

overridevirtual

Clears the internal state of the processor.

This function resets the internal state of the filter to zero.

Implements sfFDN::AudioProcessor.

Clone()

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

overridevirtual

Creates a copy of the filter.

Returns

A unique pointer to the cloned filter.

Implements sfFDN::AudioProcessor.

InputChannelCount()

uint32_t sfFDN::AllpassFilter::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::AllpassFilter::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::AllpassFilter::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::AllpassFilter::SetCoefficients ( float coeff )

inline

Sets the allpass coefficient.

Parameters

coeff

The allpass coefficient.

Tick()

float sfFDN::AllpassFilter::Tick

(

float

in

)

Input a sample in the filter and return the next output.

Parameters

in	The input sample

Returns

The next output sample

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

• include/sffdn/filter.h