sfFDN::DelayMatrix Class Reference

DelayMatrix implementation as presented in [1]. More...

#include <delay_matrix.h>

Inheritance diagram for sfFDN::DelayMatrix:

Collaboration diagram for sfFDN::DelayMatrix:

Public Member Functions
	DelayMatrix (uint32_t order, std::span< const uint32_t > delays, const ScalarFeedbackMatrix &mixing_matrix)
	Constructs a DelayMatrix with the specified size and delay values.
	DelayMatrix (const DelayMatrix &other)
	Copy constructor.
DelayMatrix &	operator= (const DelayMatrix &other)
	Copy assignment operator.
	DelayMatrix (DelayMatrix &&other) noexcept
	Move constructor.
DelayMatrix &	operator= (DelayMatrix &&other) noexcept
	Move assignment operator.
void	Process (const AudioBuffer &input, AudioBuffer &output) noexcept SFFDN_NONBLOCKING override
	Processes the input audio buffer through the delay matrix.
uint32_t	InputChannelCount () const noexcept SFFDN_NONBLOCKING override
	Returns the number of input channels this processor expects.
uint32_t	OutputChannelCount () const noexcept SFFDN_NONBLOCKING override
	Returns the number of output channels this processor produces.
void	Clear () override
	Clears the internal delay buffers.
void	PrintInfo () const
	Prints information about the delay matrix.
std::unique_ptr< AudioProcessor >	Clone () const override
	Creates a copy of the delay matrix.
Public Member Functions inherited from sfFDN::AudioProcessor

Additional Inherited Members
Protected Member Functions inherited from sfFDN::AudioProcessor
	AudioProcessor (const AudioProcessor &)=default
AudioProcessor &	operator= (const AudioProcessor &)=default
	AudioProcessor (AudioProcessor &&) noexcept=default
AudioProcessor &	operator= (AudioProcessor &&) noexcept=default

Detailed Description

DelayMatrix implementation as presented in [1].

[1] S. J. Schlecht and E. A. P. Habets, "Dense Reverberation with Delay Feedback Matrices," in 2019 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA), Oct. 2019, pp. 150–154. doi: 10.1109/WASPAA.2019.8937284.

Constructor & Destructor Documentation

DelayMatrix()

sfFDN::DelayMatrix::DelayMatrix	(	uint32_t	order,
		std::span< const uint32_t >	delays,
		const ScalarFeedbackMatrix &	mixing_matrix )

Constructs a DelayMatrix with the specified size and delay values.

Parameters

order	the size of the square matrix (order x order)
delays	the delay table with order^2 entries in row-major order: delays[destination * order + source] is the tap depth (in samples) applied to the signal traveling from source to destination. The maximum tap depth for each source delay line is automatically derived as the maximum over all destinations.
mixing_matrix	the gain matrix to apply to the delayed signals (row-major, y = A*x). Its size must match order x order.

Member Function Documentation

Clear()

void sfFDN::DelayMatrix::Clear ( )

overridevirtual

Clears the internal delay buffers.

This sets all delay buffers to zero without changing the delay values or mixing matrix.

Implements sfFDN::AudioProcessor.

Clone()

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

overridevirtual

Creates a copy of the delay matrix.

Returns

A unique pointer to the cloned delay matrix.

Implements sfFDN::AudioProcessor.

InputChannelCount()

uint32_t sfFDN::DelayMatrix::InputChannelCount ( ) const

overridevirtualnoexcept

Returns the number of input channels this processor expects.

Implements sfFDN::AudioProcessor.

OutputChannelCount()

uint32_t sfFDN::DelayMatrix::OutputChannelCount ( ) const

overridevirtualnoexcept

Returns the number of output channels this processor produces.

Implements sfFDN::AudioProcessor.

PrintInfo()

void sfFDN::DelayMatrix::PrintInfo

(

)

const

Prints information about the delay matrix.

For debugging purposes.

Process()

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

overridevirtualnoexcept

Processes the input audio buffer through the delay matrix.

Parameters

input	the input audio buffer
output	the output audio buffer

Implements sfFDN::AudioProcessor.

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

• include/sffdn/delay_matrix.h