Runtime configuration class of gtfb_simple_bridge plugin. More...

Public Member Functions
	gtfb_simple_rt_t (MHA_AC::algo_comm_t &ac, const std::string &name, mhaconfig_t &chcfg, std::vector< mha_real_t > cf, std::vector< mha_real_t > bw, unsigned int order, unsigned int pre_stages, unsigned int desired_delay, std::vector< mha_real_t > &vcltass, std::vector< mha_real_t > &resynthesis_gain, const std::string &element_gain_name)

mha_wave_t *	pre_plugin (mha_wave_t *s)
	Filter real input signal s with the pre_stages filter orders in each gammatone filter band. More...

mha_wave_t *	post_plugin (mha_wave_t *s)
	Post-filter the complex-valued filter-bank signal s after it has been processed by the loaded plugin. More...

void	insert_ac_variables ()
	(Re-)insert all AC variables into the AC space. More...

const MHAFilter::gamma_flt_t &	get_gf () const
	Const-accessor to contained gammatone filterbank object. More...

Static Private Member Functions
static std::vector< mha_real_t >	duplicate_vector (const std::vector< mha_real_t > &src, unsigned int nchannels)
	Helper function to repeat the elements in a vector. More...

Private Attributes
unsigned int	_order
	Total number of gammatone filter orders. More...

unsigned int	_pre_stages
	Number of filter orders applied before the loaded plugin is invoked. More...

unsigned int	nbands
	Number of frequency bands to produce = number of gammatone filters. More...

MHA_AC::waveform_t	imag
	Storage for the imaginary part of the filterbank signal. More...

MHA_AC::waveform_t	accf
	AC variable to publish the center frequencies of the gammatone filters. More...

MHA_AC::waveform_t	acbw
	AC variable to publish the bandwiths of the gammatone filters. More...

MHASignal::waveform_t	input
	Real part of the filterbank signal. More...

MHASignal::waveform_t	output
	Resynthesized broadband signal, used as the output signal of this plugin. More...

MHAFilter::gamma_flt_t	gf
	The gammatone filter bank implementation. More...

MHA_AC::waveform_t	cLTASS
	AC variable to publish band-specific LTASS level correction values. More...

MHA_AC::waveform_t	ac_resynthesis_gain
	AC variable to publish the configured per-frequency resyntesis gains. More...

std::string	element_gain_name_
	Either an empty string, or the name of an AC variable from which element-wise linear factors are read. More...

MHA_AC::algo_comm_t &	_ac
	Algorithm Communication Variable space. More...

Detailed Description

Runtime configuration class of gtfb_simple_bridge plugin.

Constructor & Destructor Documentation

◆ gtfb_simple_rt_t()

gtfb_simple_rt_t::gtfb_simple_rt_t	(	MHA_AC::algo_comm_t &	ac,
		const std::string &	name,
		mhaconfig_t &	chcfg,
		std::vector< mha_real_t >	cf,
		std::vector< mha_real_t >	bw,
		unsigned int	order,
		unsigned int	pre_stages,
		unsigned int	desired_delay,
		std::vector< mha_real_t > &	vcltass,
		std::vector< mha_real_t > &	resynthesis_gain,
		const std::string &	element_gain_name
	)

Member Function Documentation

◆ pre_plugin()

mha_wave_t * gtfb_simple_rt_t::pre_plugin ( mha_wave_t * s )

Filter real input signal s with the pre_stages filter orders in each gammatone filter band.

The real part of the complex output is returned in the return value of the method, the imaginary part is stored into the AC variable.

Parameters

s	real-valued, broad-band input signal

Returns: real part of complex-valued output signal after pre_stages gammatone filter orders have been applied in each band. Order of output bands in real and imaginary output are: (channel0,band0), (channel0,band1), ..., (cannel1,band0), ...

◆ post_plugin()

mha_wave_t * gtfb_simple_rt_t::post_plugin ( mha_wave_t * s )

Post-filter the complex-valued filter-bank signal s after it has been processed by the loaded plugin.

The remaining gammatone filter orders are applied to restrict the loaded plugin's output signal to the respective bands. After

Parameters

s	complex-valued, filter-bank signal. This signal is produced by letting the loaded plugin process the output signal of the pre_plugin method.

Returns: real part of complex-valued output signal after pre_stages gammatone filter orders have been applied in each band. Order of output bands in real and imaginary output are: (channel0,band0), (channel0,band1), ..., (cannel1,band0), ...

◆ insert_ac_variables()

void gtfb_simple_rt_t::insert_ac_variables ( )

(Re-)insert all AC variables into the AC space.

Must be called during each prepare() and process() callback of the plugin. For the process() callback, this method is called from pre_plugin(). For the prepare() callback, it must be called by the plugin interface.

◆ get_gf()

const MHAFilter::gamma_flt_t& gtfb_simple_rt_t::get_gf ( ) const

inline

Const-accessor to contained gammatone filterbank object.

◆ duplicate_vector()

std::vector< mha_real_t > gtfb_simple_rt_t::duplicate_vector	(	const std::vector< mha_real_t > &	src,
		unsigned int	nchannels
	)

staticprivate

Helper function to repeat the elements in a vector.

Parameters

src	vector to repeat
nchannels	number of times to repeat input vector

Returns: a vector that returns nchannels repetitions of input vector.

Member Data Documentation

◆ _order

unsigned int gtfb_simple_rt_t::_order

private

Total number of gammatone filter orders.

◆ _pre_stages

unsigned int gtfb_simple_rt_t::_pre_stages

private

Number of filter orders applied before the loaded plugin is invoked.

◆ nbands

unsigned int gtfb_simple_rt_t::nbands

private

Number of frequency bands to produce = number of gammatone filters.

◆ imag

MHA_AC::waveform_t gtfb_simple_rt_t::imag

private

Storage for the imaginary part of the filterbank signal.

It is used as the imaginary input signal for the loaded plugin. Furthermore, it is expected that the loaded plugin processes the imaginary part of the data in place.

◆ accf

MHA_AC::waveform_t gtfb_simple_rt_t::accf

private

AC variable to publish the center frequencies of the gammatone filters.

◆ acbw

MHA_AC::waveform_t gtfb_simple_rt_t::acbw

private

AC variable to publish the bandwiths of the gammatone filters.

◆ input

MHASignal::waveform_t gtfb_simple_rt_t::input

private

Real part of the filterbank signal.

It is used as the real input signal to the loaded plugin.

◆ output

MHASignal::waveform_t gtfb_simple_rt_t::output

private

Resynthesized broadband signal, used as the output signal of this plugin.

◆ gf

MHAFilter::gamma_flt_t gtfb_simple_rt_t::gf

private

The gammatone filter bank implementation.

◆ cLTASS

MHA_AC::waveform_t gtfb_simple_rt_t::cLTASS

private

AC variable to publish band-specific LTASS level correction values.

◆ ac_resynthesis_gain

MHA_AC::waveform_t gtfb_simple_rt_t::ac_resynthesis_gain

private

AC variable to publish the configured per-frequency resyntesis gains.

◆ element_gain_name_

std::string gtfb_simple_rt_t::element_gain_name_

private

Either an empty string, or the name of an AC variable from which element-wise linear factors are read.

◆ _ac

MHA_AC::algo_comm_t& gtfb_simple_rt_t::_ac

private

Algorithm Communication Variable space.

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

gtfb_simple_bridge.cpp

Public Member Functions

Static Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

◆ gtfb_simple_rt_t()

Member Function Documentation

◆ pre_plugin()

◆ post_plugin()

◆ insert_ac_variables()

◆ get_gf()

◆ duplicate_vector()

Member Data Documentation

◆ _order

◆ _pre_stages

◆ nbands

◆ imag

◆ accf

◆ acbw

◆ input

◆ output

◆ gf

◆ cLTASS

◆ ac_resynthesis_gain

◆ element_gain_name_

◆ _ac