online-feature.h File Reference

#include <string>
#include <vector>
#include <deque>
#include "matrix/matrix-lib.h"
#include "util/common-utils.h"
#include "base/kaldi-error.h"
#include "feat/feature-functions.h"
#include "feat/feature-mfcc.h"
#include "feat/feature-plp.h"
#include "feat/feature-fbank.h"
#include "itf/online-feature-itf.h"

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Classes
class	RecyclingVector
	This class serves as a storage for feature vectors with an option to limit the memory usage by removing old elements. More...
class	OnlineGenericBaseFeature< C >
	This is a templated class for online feature extraction; it's templated on a class like MfccComputer or PlpComputer that does the basic feature extraction. More...
class	OnlineMatrixFeature
	This class takes a Matrix<BaseFloat> and wraps it as an OnlineFeatureInterface: this can be useful where some earlier stage of feature processing has been done offline but you want to use part of the online pipeline. More...
struct	OnlineCmvnOptions
struct	OnlineCmvnState
	Struct OnlineCmvnState stores the state of CMVN adaptation between utterances (but not the state of the computation within an utterance). More...
class	OnlineCmvn
	This class does an online version of the cepstral mean and [optionally] variance, but note that this is not equivalent to the offline version. More...
struct	OnlineSpliceOptions
class	OnlineSpliceFrames
class	OnlineTransform
	This online-feature class implements any affine or linear transform. More...
class	OnlineDeltaFeature
class	OnlineCacheFeature
	This feature type can be used to cache its input, to avoid repetition of computation in a multi-pass decoding context. More...
class	OnlineAppendFeature
	This online-feature class implements combination of two feature streams (such as pitch, plp) into one stream. More...

Namespaces
	kaldi
	This code computes Goodness of Pronunciation (GOP) and extracts phone-level pronunciation feature for mispronunciations detection tasks, the reference:

Typedefs
typedef OnlineGenericBaseFeature< MfccComputer >	OnlineMfcc
typedef OnlineGenericBaseFeature< PlpComputer >	OnlinePlp
typedef OnlineGenericBaseFeature< FbankComputer >	OnlineFbank