Vsdk::Asr::Recognizer

ConsumerModule that performs Automatic Speech Recognition. More...

#include <Recognizer.hpp>

Inheritance diagram for Vsdk::Asr::Recognizer:

Public Member Functions
auto	name () const -> std::string const &
	Name of this particular Recognizer instance.
auto	upTime () const -> int
	Amount of milliseconds of audio processed for the current model(s), expressed as int.
auto	upTimeMs () const -> std::chrono::milliseconds
	Amount of milliseconds of audio processed for the current model(s), expressed as std::chrono::milliseconds.
virtual void	setModel (std::string const &model, int startTime)=0
	Applies a new recognition model.
void	setModel (std::string const &model)
	Applies a new recognition model.
virtual void	setModels (std::unordered_set< std::string > const &models, int startTime)=0
	Applies multiple recognition models at the same time.
void	setModels (std::unordered_set< std::string > const &models)
	Applies multiple recognition models at the same time.
Public Member Functions inherited from Vsdk::Audio::ConsumerModule
virtual	~ConsumerModule ()=default
virtual void	process (Buffer const &, bool last)=0

Protected Member Functions
	Recognizer (std::string name) noexcept
virtual void	configure (nlohmann::json const &)
virtual bool	processBuffer (Audio::Buffer const &buffer, bool last)=0
void	dispatchEvent (EventCode code, std::string message, std::chrono::milliseconds time)
void	dispatchError (ErrorType type, ErrorCode code, std::string message=std::string())
void	setUpTime (double upTime)

Protected Attributes
std::string	_name
double	_upTime

Detailed Description

ConsumerModule that performs Automatic Speech Recognition.

Constructor & Destructor Documentation

Recognizer()

Recognizer::Recognizer ( std::string  name )

explicitprotectednoexcept

Member Function Documentation

name()

auto Recognizer::name

(

)

const -> std::string const &

Name of this particular Recognizer instance.

upTime()

auto Recognizer::upTime

(

)

const -> int

Amount of milliseconds of audio processed for the current model(s), expressed as int.

upTimeMs()

auto Recognizer::upTimeMs

(

)

const -> std::chrono::milliseconds

Amount of milliseconds of audio processed for the current model(s), expressed as std::chrono::milliseconds.

setModel() [1/2]

virtual void Vsdk::Asr::Recognizer::setModel ( std::string const &  model, int  startTime  )

pure virtual

Applies a new recognition model.

Parameters

model	Found in the configuration under asr.models
startTime	Time from which the recognizer starts processing audio again. This is usually taken from a previous result, like so: setModel(model, hypothesis["end_time"].get<int>());

Note

Some implementations do not support the startTime parameter and will recognize again starting from the moment the model is fully loaded

setModel() [2/2]

void Recognizer::setModel

(

std::string const &

model

)

Applies a new recognition model.

Equivalent to calling:

setModel(model, -1); 

setModels() [1/2]

virtual void Vsdk::Asr::Recognizer::setModels ( std::unordered_set< std::string > const &  models, int  startTime  )

pure virtual

Applies multiple recognition models at the same time.

Parameters

models	Found in the configuration under asr.models
startTime	Time from which the recognizer starts processing audio again. This is usually taken from a previous result, like so: setModel(model, hypothesis["end_time"].get<int>());

Note

Some implementations do not support the startTime parameter and will recognize again starting from the moment the models are fully loaded

setModels() [2/2]

void Recognizer::setModels

(

std::unordered_set< std::string > const &

models

)

Applies multiple recognition models at the same time.

Equivalent to calling:

setModels(models, -1); 

configure()

virtual void Vsdk::Asr::Recognizer::configure ( nlohmann::json const &  )

protectedvirtual

processBuffer()

virtual bool Vsdk::Asr::Recognizer::processBuffer ( Audio::Buffer const &  buffer, bool  last  )

protectedpure virtual

Returns

true if the buffer has been processed, else false

dispatchEvent()

void Recognizer::dispatchEvent ( EventCode  code, std::string  message, std::chrono::milliseconds  time  )

protected

dispatchError()

void Recognizer::dispatchError ( ErrorType  type, ErrorCode  code, std::string  message = std::string()  )

protected

setUpTime()

void Recognizer::setUpTime ( double  upTime )

protected

Member Data Documentation

_name

std::string Vsdk::Asr::Recognizer::_name

protected

_upTime

double Vsdk::Asr::Recognizer::_upTime

protected