changelog

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	* HMath.[hc] (LinTranQuaProd): New function.

2002-11-08  Gunnar Evermann  <[e-mail]>

	* HUtil.c (SetMacroHook):
	(GetMacroUse):
	(SetMacroUse): Support for InputXForm macro ~j. 
	* HModel.[hc]: Data Structures and functions for reading/writing
	InputXFroms.
	* HParm.[hc]: Apply input transform to data and variance scale
	vectors. 
	Suport for third and fourth differntials.
	
	From: Andrew Liu <[e-mail]>
	      Mark Gales <[e-mail]>

2002-10-30  Zhu Dong-Lai <[e-mail]>

        * HAdapt.c (GetMeanTransform): Fix implementation of MLLR for
        block-diagonal transforms.

2002-10-17  Dan Povey  <[e-mail]>

	* HTrain.[hc] (CreateMuAcc): 
	(CreateVaAcc):
	(CreateTrAcc): 
	(CreateWtAcc): 
	(TMAttachAccs): 
	(AttachAccsParallel):
	(TMZeroAccs): 
	(ZeroAccsParallel): 
	(TMShowAccs): 
	(ShowAccsParallel): 
	(AttachPreComps): 
	(DumpAccsParallel):
	(LoadAccsParallel): 
	(RestorePDF): 
	(RestoreAccsParallel): Support for parallel accumulators. 

	(LoadWtAcc): 
	(LoadMuAcc): 
	(LoadVaAcc): Check for infinity in accumulator files.

2002-10-16  Dan Povey  <[e-mail]>

	* HNet.c (ReadOneLattice): Initialise lattice fields.
	Set pronunciation variant for arclabs lattices.

2002-08-28  Gunnar Evermann  <[e-mail]>

	* HFB.c (InitFB): 
	(InitialiseForBack): Allow setting of pruning threshold via config
	variables. Values specified via calls to InitialiseForBack() take
	precedence.
	(InitFB): Allow module name HFWDBKWD in config files for backward
	compatibility. 

2002-07-12  Thomas Hain  <[e-mail]>
 
        * HTrain.h: Added prototype for AttachPreComps
        * HTrain.c (AttachPreComps): Added function
        * HFB.h: Added prototype for UseAlignHMMSet, extended structs
                to allow 2model re-estimation.
        * HFB.c : Added capability to use one model set for FB
                and one for model updates.
        * HModel.h: Added ext function prototype for ApplyVFloor
        * HModel.c (ApplyVFloor): New function to apply variance floor to
        hset

2002-08-13  Gunnar Evermann  <[e-mail]>

	* HNet.c (ConvLogLikeFromBase): 
	(ConvLogLikeToBase): New function for for conversion of log
	likelihoods for reading/storing lattices in files.
	(WriteLattice): 
	(WriteOneLattice): 
	(ReadOneLattice): Support for "base" and "tscale" lattice header
	fields.

2002-08-13  Gunnar Evermann  <[e-mail]>

	* HModel.c (PutOptions): Save CovKind in MMF Options if it is
	specified (i.e. not NULLC).
	(SetCovKindUsage): New function. Set HMMSet CovKind if it is
	unspecified but consistent across mixtures.

2002-08-09  Gunnar Evermann  <[e-mail]>

	* HLM.h: Add new LMType: hlmModel.

	* HMem.h: 
	* HMem.c (CNew): New function.

	* HLabel.c (GetTrSym): Fix buffer overrun.
	(ExtendAux): Check number of levels.
	* HShell.h: Remove comments referring to LClass.
	From: Gareth Moore <[e-mail]>

2002-07-16  Gunnar Evermann  <[e-mail]>

	* HNet.c (WriteOneLattice): Always re-order lattice nodes, even if
	we don't store them.

2002-06-27  Gunnar Evermann  <[e-mail]>

	* HParm.h: Add prototypes for Ext data source functions.
	From: Peter Gober <[e-mail]>

	* HParm.c (OpenAsChannel): Fix buffer allocation for ch_ext_wave.
	From: Peter Gober <[e-mail]>

2002-06-11  Gunnar Evermann  <[e-mail]>

	* HLat.c (LatFindBest): If give pronunciation variant can't be
	found in dicitonary (e.g. if it only is a word list), then fall
	back to word name as the output symbol.

2002-06-05  Gunnar Evermann  <[e-mail]>

	* HLM.c (LMTrans): New function for use in HLat and decoders.
	(ReadNGrams): Add support for reading binary ARPA N-grams.

	* HLM.h (NSIZE): Allow 4-grams.

	* HLat.[hc]: Add new module.

2002-06-05  Gunnar Evermann  <[e-mail]>

	* *.[hc]: Bump version to 3.1.1.

2002-06-05  Gunnar Evermann  <[e-mail]>

	* HModel.c (GetTransMat): Check for wrong TransP matrix size.
	From: Peter Gober <[e-mail]>

2002-02-14  Gunnar Evermann  <[e-mail]>

	* HNet.c (FindWordNode): 
	(NewNode): 
	(CreateX1Model): 
	(ExpandWordNet): Initialise node->aux to 0.
	From: K.K. Chin <[e-mail]>

2002-01-24  Gunnar Evermann  <[e-mail]>

	* Makefile (HTKLib.$(CPU).a): Always add all modules.

2002-01-16  Gunnar Evermann  <[e-mail]>

	* *.[hc]: Bump version to 3.1.

2001-12-11  Gareth Moore  <[e-mail]>

	* HShell.c (PrintStdOpts): Tool usage report formatting tidied.

2001-12-03  Gunnar Evermann  <[e-mail]>

	* HModel.c (LoadHMMSet): Check hset consistency before assigning
	indexes.

2001-11-23  Gunnar Evermann  <[e-mail]>

	* HNet.c (NewPronHolder): Handle prons will NULL outSym.

2001-08-28  Gunnar Evermann  <[e-mail]>

	* HDict.c (ShowDict): Handle prons with NULL outSym.

2001-08-03  Gunnar Evermann  <[e-mail]>

	* HNet.h: Add aux field to NetNode.
	* HRec.c (TokSetMerge): Compare NetNodes instead of Prons when
	deciding which tokens to recombine.
	From: K.K. Chin <[e-mail]>

2001-06-08  Gunnar Evermann  <[e-mail]>

	* HParm.c: Correct initialisation of IOConfigRec defChan
	From: Mark Gales <[e-mail]>
	

2001-04-18  Gunnar Evermann  <[e-mail]>

	* HSigP.c (ASpec2LPCep): Init lp[lpcOrder+1] to avoid reading from
	uninitialised in LPC2Cepstrum(). This doesn't change the results
	but makes Purify et al. happy.

2001-04-17  Gunnar Evermann  <[e-mail]>

	* HVQ.c (VQNodeScore):
	* HLM.c (WriteBoNGram): Fix error codes.

	* HSigP.c (ASpec2LPCep): New error code 5323 for PLP.

	* HParm.c (RunSilDet): 
	(SetExtSpDetParms): New error code 6325 for sil detector errors.

	* HNet.c : New error code 8253 for Sublat errors.

	* HMem.c: Remove unused license check.

	* Makefile (depend): New target. Add header file dependencies.

	* HFB.c (StepBack): Print top-level trace messages if traceHFB
	(set by 'HERest -T 1') is true.

2001-04-14  Gunnar Evermann  <[e-mail]>

	* HFB.c (StepForward): Always initialise ab->occa.

2001-04-13  Gunnar Evermann  <[e-mail]>

	* HNet.c (WriteOneLattice): Fix sort order of lattice arcs.

	* HRec.c (InitVRecInfo): Initialise sanity checking info.
	(CollectPaths): Fix some silly if statements.
	(NewNRefPath): Initialise used field.
	(NewNRefAlign): Ditto.

	* HParm.c (InitParm): Initialise fields of defChan.

2001-04-12  Gunnar Evermann  <[e-mail]>

	* HParm.c (LoadVarScale): 
	(LoadVarScaleVector): 
	(LoadCMeanVector): Check InitSource return value.

2001-04-11  Gunnar Evermann  <[e-mail]>

	* HShell.c (ReadRawString): Moved from HDman.

	* HParm.c:
	* HSigP.c (Wave2FBank): 
	(InitFBank): Implement Vocal Tract Length Normalisation.

2001-04-09  Gunnar Evermann  <[e-mail]>

	* HParm.c:
	* HSigP.c (InitFBank): Make DOUBLEFFT a config variable.

2001-03-14  Gunnar Evermann  <[e-mail]>

	* HNet.c (NewLattice): Initialise prlike.

2001-03-08  Gunnar Evermann  <[e-mail]>

	* HWave.c (OpenWaveInput): Handle extended filenames.

2001-02-09  Gunnar Evermann  <[e-mail]>

	* HParm.c: 
	* HShell.[hc]: Moved MaskMatch to HShell.

2001-02-07  Gunnar Evermann  <[e-mail]>

	* HParm.c: Add side-based normalisation.

2001-02-02  Gunnar Evermann  <[e-mail]>

        * HSigP.c: 
        * HParm.h: 
        * HParm.c: Add support for PLP frontend.

2000-12-04  Gunnar Evermann  <[e-mail]>

	* HLabel.c (SaveESPSLabels): Don't close f here, it's done in LSave.

2000-11-30  Gunnar Evermann  <[e-mail]>

	* HShell.c (PrintStdOpts): Modify description of -B option.

2000-11-16  Gunnar Evermann  <[e-mail]>

	* HRec.c (cSOutP): Take log of mixture weight.
	From Ruth Aloni-lavi <[e-mail]>

2000-11-10  Gunnar Evermann  <[e-mail]>

	* HMem.h:
	* HMem.c: Consistently use size_t for all memory block sizes
	instead of mixing signed/unsigned int/long.

2000-10-26  Gunnar Evermann  <[e-mail]>

	* HFB.h: 
	* HFB.c (FBFile): Return Boolean indicating whether alignment
	succeeded.
	From: Mark Gales <[e-mail]>

2000-10-06  Gunnar Evermann  <[e-mail]>

	* HSigP.c: 
	* HMem.c: 
	* HMath.c: 
	* HLabel.c: 
	* HAudio.c: Remove MPW segment pragmas.

2000-10-06  Steve Young <[e-mail]>

	* HShell.c (KeyPressed): On Win32 check for KeyDown to avoid
	registering key twice.

2000-09-25  Gunnar Evermann  <[e-mail]>

	* HShell.c (InfoPrinted): Remove reference to SCCS.

	* Makefile: Copy compile settings from env files.

2000-09-15  Gunnar Evermann  <[e-mail]>

	* HAdapt.c (GetSymbol): 
	* HUtil.c (GetKey): 
	* HGraf.c (HSetColour,HSetGrey,HSetFontSize,HSetLineWidth,InitGCs): 
	* HParm.c (ReadIOConfig): 
	* HWave.c (Str2Format): C++ fix for incrementing enums.

	* HLabel.c (GetScribeLab): Warning fix.

2000-09-13  G. Evermann  <ge204@avon>

	* htk_htklib_nt.mkf: Use HGraf_WIN32.obj.

2000-09-08  Gunnar Evermann  <[e-mail]>

	* esig_edr.c: 
	* esig_asc.c: 
	* esignal.c: 
	* HMem.c: 
	* HFB.c: 
	* HAdapt.c: 
	* HNet.c: 
	* HRec.c: 
	* HNet.h: 
	* HLM.c: 
	* HDict.c: 
	* HTrain.c: 
	* HUtil.c: 
	* HModel.c:
	* HLabel.c:
	* HGraf.c: 
	* HVQ.c: 
	* HParm.c:
	* HAudio.c:
	* HWave.c:
	* HSigP.c: 
	* Hshell.c:
	* HMath.c: Warning elimination.
	Explicitly cast malloc return values to avoid C++ warnings.
	Remove unused variables.
	Put parentheses about assignments used as truth values.
	Explicitly cast doubles to ints.
	Use correct format chars in printf calls.
	C++ compatability.
	Many of the warning fixes are from Dave Hart <[e-mail]>
	
	* HMath.c (FixSVD): #ifdef 0 unused code.

	* HShell.h: Use predefined type bool in C++.

	* HModel.c: Use EOFSYM in symMap[] instead of EOF (from stdio.h!).

	* HLabel.c (SaveToMasterfile): Return FAIL if no file name given.

	* HAudio.c (InitAudi): Call IsVAXOrder instead of treating its
	address as a Boolen.


2000-09-06  Gunnar Evermann  <[e-mail]>

	* *.h: Guard against repeated inclusion.
	Add C++ wrapper.

2000-09-04  Gunnar Evermann  <[e-mail]>

	* *.[hc]: Reindented.

	* *.[hc]: Cleaned up version headers and set version to 3.0.