Whisper Class Reference

Whisper is the top-level class of the decoder. More...

List of all members.

Public Member Functions
	Whisper (ShoutConfig *myConfig)
	~Whisper ()
Protected Member Functions
int	getClusterID (FeaturePool *fPool)
Protected Attributes
int	numberOfModels
int	numberOfClusters
int	numberOfClusteredModels
int	vectorSize
PhoneModel **	clusterModels
PhoneModel **	models
LexicalTree *	myTree
LexicalTree *	myBackgroundTree
LexicalTree *	myPhoneLoop
LanguageModel *	myLM
FeaturePool *	vtlnStream [VTLN_STEPS]
SegmentationAdmin	readPool_curSeg

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Detailed Description

Whisper is the top-level class of the decoder.

The constructor Whisper::Whisper() handles everything. It requires file names for the acoustic models (PhoneModel), the lexical tree (LexicalTree) the language model (LanguageModel) and a list of files to decode.

Next to LM decoding, it is also possible to do forced allignment with Whisper. In this case the file-list file must contain the correct sentences after the feature labels. Each sentence must start with the language model history. In most cases this is (<s> <s>).

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Constructor & Destructor Documentation

Whisper::Whisper

(

ShoutConfig *

myConfig

)

All code is run in this constructor. It loads the LanguageModel, the PhoneModel and the LexicalTree. The decoding is done in the LexicalTree.

References PhoneModel::adapt_clear(), LexicalTree::addForcedAlignOOV(), LexicalTree::alignmentIsEmpty(), LexicalTree::borrowPhoneString(), LexicalTree::checkAMs(), FeaturePool::claimSegmentationID(), clusterModels, FeaturePool::createNewPool(), doPhoneAlignment, FILE_TYPE_RAW_DECODING, WriteFileLittleBigEndian::freadEndianSafe(), LexicalTree::getBestRecognition(), FeaturePool::getCurInfoString(), FeaturePool::getCurSegmentLen(), FeaturePool::getCurSegmentStart(), FeaturePool::getFirstVectorFirstSegment(), FeaturePool::getFirstVectorNextSegment(), ShoutConfig::getFloatValue(), LanguageModel::getNumberOfWords(), FeaturePool::getSegmentID(), ShoutConfig::getStringValue(), FeaturePool::getVector(), FeaturePool::getVectorList(), LexicalTree::initialiseTree(), LexicalTree::latticeBaumWelch_backward(), LexicalTree::latticeBaumWelch_calculatePosteriors(), LexicalTree::latticeBaumWelch_forward(), LexicalTree::latticeBaumWelch_initBackward(), LexicalTree::latticeBaumWelch_initForward(), LexicalTree::latticeBaumWelch_mmi_accumulatorsPosteriors(), LexicalTree::latticeBaumWelch_numberNodes(), LexicalTree::latticeBaumWelch_setLikelihoods(), FastMath::log(), models, myBackgroundTree, myLM, myPhoneLoop, myTree, numberOfClusteredModels, numberOfClusters, numberOfModels, LexicalTree::overwritePrunePars(), LexicalTree::overwriteWeightPars(), ShoutConfig::parIsDefined(), LexicalTree::printFinalSettings(), LexicalTree::printInitialSettings(), LexicalTree::printLattice(), LexicalTree::printNBestList(), LexicalTree::processVector(), readPool_curSeg, FeaturePool::readRTTM(), LexicalTree::safeBestRecognition(), LexicalTree::setAMs(), LexicalTree::setForcedAlign(), LexicalTree::setInitialLMHistory(), LexicalTree::setLattice(), LexicalTree::setLatticeGeneration(), LexicalTree::setLM(), LexicalTree::setPhoneLoop(), StringFunctions::splitList(), vectorSize, and PhoneModel::writeAccumulators().

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Whisper::~Whisper

(

)

The destructor cleans up all models.

References clusterModels, models, myBackgroundTree, myLM, myTree, numberOfClusteredModels, and numberOfClusters.

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Member Function Documentation

int Whisper::getClusterID

(

FeaturePool *

fPool

)

[protected]

Determine the cluster ID

References clusterModels, PhoneModel::getLogPDFProbability(), FeaturePool::getNextVector(), FeaturePool::getVector(), numberOfClusters, and readPool_curSeg.

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Member Data Documentation

PhoneModel** Whisper::clusterModels [protected]

Referenced by getClusterID(), Whisper(), and ~Whisper().

PhoneModel** Whisper::models [protected]

Referenced by Whisper(), and ~Whisper().

LexicalTree* Whisper::myBackgroundTree [protected]

Referenced by Whisper(), and ~Whisper().

LanguageModel* Whisper::myLM [protected]

Referenced by Whisper(), and ~Whisper().

LexicalTree* Whisper::myPhoneLoop [protected]

Referenced by Whisper().

LexicalTree* Whisper::myTree [protected]

Referenced by Whisper(), and ~Whisper().

int Whisper::numberOfClusteredModels [protected]

Referenced by Whisper(), and ~Whisper().

int Whisper::numberOfClusters [protected]

Referenced by getClusterID(), Whisper(), and ~Whisper().

int Whisper::numberOfModels [protected]

Referenced by Whisper().

SegmentationAdmin Whisper::readPool_curSeg [protected]

Referenced by getClusterID(), and Whisper().

int Whisper::vectorSize [protected]

Referenced by Whisper().

FeaturePool* Whisper::vtlnStream[VTLN_STEPS] [protected]