Plugin interface class for generating an auralized audio signal from the specified AC variable, using a stimulation strategy similar to a typical ACE (advanced combination encoder, n-of-m) coding strategy with 22 channels. More...

Inheritance diagram for Ci_auralization_ace:

Public Member Functions
	Ci_auralization_ace (algo_comm_t &ac, const std::string &algo_name)
	Constructor of the plugin interface class. More...

void	prepare (mhaconfig_t &signal_info)
	Prepare function of the plugin interface class. More...

mha_wave_t *	process (mha_wave_t *signal)
	Process function of the plugin interface class. More...

void	release ()
	Release function of the plugin interface class. More...

Public Member Functions inherited from MHAPlugin::plugin_t< Ci_auralization_ace_cfg >
	plugin_t (const std::string &, MHA_AC::algo_comm_t &)
	Constructor of plugin template base class. More...

virtual	~plugin_t ()
	Destructor of plugin template base class. More...

void	prepare_ (mhaconfig_t &)

void	release_ ()

bool	is_prepared () const
	Flag, if the prepare method is successfully called (or currently evaluated) More...

mhaconfig_t	input_cfg () const
	Current input channel configuration. More...

mhaconfig_t	output_cfg () const
	Current output channel configuration. More...

Public Member Functions inherited from MHAParser::parser_t
	parser_t (const std::string &help_text="")
	Construct detached node to be used in the configuration tree. More...

	~parser_t ()

void	insert_item (const std::string &, base_t *)
	Register a parser item into this sub-parser. More...

void	remove_item (const std::string &)
	Remove an item by name. More...

void	force_remove_item (const std::string &)
	Remove an item by name. More...

void	remove_item (const base_t *)
	Remove an item by address. More...

Public Member Functions inherited from MHAParser::base_t
	base_t (const std::string &)
	Constructor for base class of all parser nodes. More...

	base_t (const base_t &)
	Copy constructor for base_t. More...

base_t &	operator= (const base_t &)=default

	base_t (base_t &&)=delete

base_t &	operator= (base_t &&)=delete

virtual	~base_t ()

virtual std::string	parse (const std::string &)
	Causes this node to process a command in the openMHA configuration language. More...

virtual void	parse (const char , char , unsigned int)
	This function parses a command and writes the parsing result into a C character array. More...

virtual void	parse (const std::vector< std::string > &, std::vector< std::string > &)

virtual std::string	query_perm (const std::string &)

virtual std::string	query_range (const std::string &)

std::string	query_version (const std::string &)

std::string	query_id (const std::string &)

std::string	query_subst (const std::string &)

std::string	query_addsubst (const std::string &)

std::string	query_help (const std::string &)

std::string	query_cmds (const std::string &)

void	set_node_id (const std::string &)
	Set the identification string of this parser node. More...

void	set_help (const std::string &)
	Set the help comment of a variable or parser. More...

void	add_parent_on_insert (parser_t *, std::string)

void	rm_parent_on_remove (parser_t *)

const std::string &	fullname () const
	Return the full dot-separated path name of this parser node in the openMHA configuration tree. More...

Public Member Functions inherited from MHAPlugin::config_t< runtime_cfg_t >
	config_t ()

	~config_t ()

Private Member Functions
void	update_cfg ()
	Runtime configuration update function of the plugin interface class. More...

Private Attributes
std::string	algo_name
	Name of the algorithm within the plugin chain. More...

MHAParser::string_t	ac_name
	Name of the AC variable containing the electrodogram (cannot be changed at runtime) More...

MHAParser::float_t	compression_coefficient
	Compression coefficient of the loudness growth function. More...

MHAParser::float_t	base_level
	Base level of the input (acoustic) dynamic range / Pa. More...

MHAParser::float_t	saturation_level
	Saturation level of the input (acoustic) dynamic range / Pa. More...

MHAParser::vfloat_t	threshold_level
	Vector containing the threshold level of the output (electric) dynamic range for each electrode. More...

MHAParser::vfloat_t	comfort_level
	Vector containing the comfort level of the output (electric) dynamic range for each electrode. More...

MHAParser::float_t	electrode_distance
	Distance of the electrodes / m. More...

MHAParser::float_t	lambda
	Length constant of exponential spread of excitation / m. More...

MHAParser::float_t	phase_duration
	Duration of one phase of a biphasic pulse / s. More...

MHAParser::float_t	interphase_gap
	Duration of the gap between the phases of a biphasic pulse / s. More...

MHAParser::kw_t	phase_order
	Order of the phases of a biphasic pulse. More...

MHAEvents::patchbay_t< Ci_auralization_ace >	patchbay
	Data member connecting an event emitter (i.e. More...

mha_wave_t	electrodogram
	Electrodogram (contains a matrix with dimensions m x n, where m = total number of electrodes and n = number of active electrodes, and where the order of the n active electrodes corrrespondes to the temporal sequence of their activation) More...

unsigned int	n_electrodes
	Number of active electrodes. More...

unsigned int	m_electrodes
	Total number of electrodes per side. More...

MHA_AC::waveform_t *	stimulation_signal_ac
	AC variable containing a pointer to the stimulation signal (containing a matrix with dimensions m x fragsize, where m = total number of electrodes and fragsize = fragment size / samples, representing the actual electrical stimulation per electrode over time for the current fragment) More...

Additional Inherited Members
Public Attributes inherited from MHAParser::base_t
MHAEvents::emitter_t	writeaccess
	Event emitted on write access. More...

MHAEvents::emitter_t	valuechanged
	Event emitted if the value has changed. More...

MHAEvents::emitter_t	readaccess
	Event emitted on read access. More...

MHAEvents::emitter_t	prereadaccess
	Event emitted on read access, before the data field is accessed. More...

Protected Member Functions inherited from MHAParser::parser_t
std::string	op_subparse (expression_t &)

std::string	op_setval (expression_t &)

std::string	op_query (expression_t &)

std::string	query_type (const std::string &)

std::string	query_dump (const std::string &)

std::string	query_entries (const std::string &)

std::string	query_readfile (const std::string &)

std::string	query_savefile (const std::string &)

std::string	query_savefile_compact (const std::string &)

std::string	query_savemons (const std::string &)

std::string	query_val (const std::string &)

std::string	query_listids (const std::string &)

void	set_id_string (const std::string &)

bool	has_entry (const std::string &)

Protected Member Functions inherited from MHAParser::base_t
void	activate_query (const std::string &, query_t)

void	notify ()

Protected Member Functions inherited from MHAPlugin::config_t< runtime_cfg_t >
runtime_cfg_t *	poll_config ()
	Receive the latest run time configuration. More...

runtime_cfg_t *	peek_config () const
	Receive the latest run time configuration without changing the configuration pointer. More...

void	push_config (runtime_cfg_t *ncfg)
	Push a new run time configuration into the configuration fifo. More...

void	cleanup_unused_cfg ()
	To be called by the push_config() for housekeeping. More...

void	remove_all_cfg ()
	To be called on Plugin destruction, will delete all runtime configuration list nodes and objects regardless of their in_use flag. More...

Protected Attributes inherited from MHAPlugin::plugin_t< Ci_auralization_ace_cfg >
mhaconfig_t	tftype
	Member for storage of plugin interface configuration. More...

MHA_AC::algo_comm_t &	ac
	AC handle of the chain. More...

Protected Attributes inherited from MHAParser::base_t
query_map_t	queries

bool	data_is_initialized

Protected Attributes inherited from MHAPlugin::config_t< runtime_cfg_t >
runtime_cfg_t *	cfg
	Pointer to the runtime configuration currently used by the signal processing thread. More...

Detailed Description

Plugin interface class for generating an auralized audio signal from the specified AC variable, using a stimulation strategy similar to a typical ACE (advanced combination encoder, n-of-m) coding strategy with 22 channels.

Constructor & Destructor Documentation

◆ Ci_auralization_ace()

Ci_auralization_ace::Ci_auralization_ace	(	algo_comm_t &	ac,
		const std::string &	algo_name
	)

Constructor of the plugin interface class.

Parameters

ac	Reference to the processing chain structure
algo_name	Reference to the algorithm name

Member Function Documentation

◆ prepare()

void Ci_auralization_ace::prepare ( mhaconfig_t & signal_info )

virtual

Prepare function of the plugin interface class.

Parameters

signal_info Reference to the prepare configuration structure

Implements MHAPlugin::plugin_t< Ci_auralization_ace_cfg >.

◆ process()

mha_wave_t * Ci_auralization_ace::process ( mha_wave_t * signal )

Process function of the plugin interface class.

Parameters

signal Pointer to the current input signal fragment

Returns: Pointer to the (unchanged) output signal fragment

◆ release()

void Ci_auralization_ace::release ( void )

virtual

Release function of the plugin interface class.

Reimplemented from MHAPlugin::plugin_t< Ci_auralization_ace_cfg >.

◆ update_cfg()

void Ci_auralization_ace::update_cfg ( )

private

Runtime configuration update function of the plugin interface class.

Member Data Documentation

◆ algo_name

std::string Ci_auralization_ace::algo_name

private

Name of the algorithm within the plugin chain.

◆ ac_name

MHAParser::string_t Ci_auralization_ace::ac_name

private

Name of the AC variable containing the electrodogram (cannot be changed at runtime)

◆ compression_coefficient

MHAParser::float_t Ci_auralization_ace::compression_coefficient

private

Compression coefficient of the loudness growth function.

◆ base_level

MHAParser::float_t Ci_auralization_ace::base_level

private

Base level of the input (acoustic) dynamic range / Pa.

◆ saturation_level

MHAParser::float_t Ci_auralization_ace::saturation_level

private

Saturation level of the input (acoustic) dynamic range / Pa.

◆ threshold_level

MHAParser::vfloat_t Ci_auralization_ace::threshold_level

private

Vector containing the threshold level of the output (electric) dynamic range for each electrode.

◆ comfort_level

MHAParser::vfloat_t Ci_auralization_ace::comfort_level

private

Vector containing the comfort level of the output (electric) dynamic range for each electrode.

◆ electrode_distance

MHAParser::float_t Ci_auralization_ace::electrode_distance

private

Distance of the electrodes / m.

◆ lambda

MHAParser::float_t Ci_auralization_ace::lambda

private

Length constant of exponential spread of excitation / m.

◆ phase_duration

MHAParser::float_t Ci_auralization_ace::phase_duration

private

Duration of one phase of a biphasic pulse / s.

◆ interphase_gap

MHAParser::float_t Ci_auralization_ace::interphase_gap

private

Duration of the gap between the phases of a biphasic pulse / s.

◆ phase_order

MHAParser::kw_t Ci_auralization_ace::phase_order

private

Order of the phases of a biphasic pulse.

◆ patchbay

MHAEvents::patchbay_t<Ci_auralization_ace> Ci_auralization_ace::patchbay

private

Data member connecting an event emitter (i.e.

configuration variable) with a callback function of the plugin interface class

◆ electrodogram

mha_wave_t Ci_auralization_ace::electrodogram

private

Electrodogram (contains a matrix with dimensions m x n, where m = total number of electrodes and n = number of active electrodes, and where the order of the n active electrodes corrrespondes to the temporal sequence of their activation)

◆ n_electrodes

unsigned int Ci_auralization_ace::n_electrodes

private

Number of active electrodes.

◆ m_electrodes

unsigned int Ci_auralization_ace::m_electrodes

private

Total number of electrodes per side.

◆ stimulation_signal_ac

MHA_AC::waveform_t* Ci_auralization_ace::stimulation_signal_ac

private

AC variable containing a pointer to the stimulation signal (containing a matrix with dimensions m x fragsize, where m = total number of electrodes and fragsize = fragment size / samples, representing the actual electrical stimulation per electrode over time for the current fragment)

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

Public Member Functions

Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ Ci_auralization_ace()

Member Function Documentation

◆ prepare()

◆ process()

◆ release()

◆ update_cfg()

Member Data Documentation

◆ algo_name

◆ ac_name

◆ compression_coefficient

◆ base_level

◆ saturation_level

◆ threshold_level

◆ comfort_level

◆ electrode_distance

◆ lambda

◆ phase_duration

◆ interphase_gap

◆ phase_order

◆ patchbay

◆ electrodogram

◆ n_electrodes

◆ m_electrodes

◆ stimulation_signal_ac