Fwd-bwd alignment (viterbi alike) te determine boundary probabilities. More...

Detailed Description

Fwd-bwd alignment (viterbi alike) te determine boundary probabilities.

spr_fwdbwd_probs <-beam beam search info> [-pdf pdffname](stdout)
    [-Npdf max. number of parallel pdf's](16) [-Pscale log-prob scale factor(s)](1.0)
    <-c Corpus> [-range b:e](0:-1) [-ssp script](SPR_BSS_DEV_NULL) [-obs ObsDir]
    [-suffix FileSuffix](sam) [-arcd FileName] <-h FileName> [-g FileName] [-sel FileName]
    [-am_opt Options] [-top_n Number(s)](0) [-rmg rmg_params](no) [-LMout Value](-100)
    [-NOGS](flag: no gauss sel) <-ci unit description files> [-cd unit description files]
    <-d dictionary> [-unwind unwind format] (-u==-ci)

Parameters

-beam<em>beam	search info A beam search algorithm will be used. The extra parameters that can be specified are explained in the manual page of load_search_space().
-pdf<em>pdffname</em><a	name="spr_fwdbwd_probs.pdf" class="el"> File to write the probability distribution of the marked boundaries to.
-Npdf<em>max.	number of parallel pdf's Store a max <Npdf> for every frame (the best ones).
-Pscale<em>log-prob	scale factor(s) Scale the log-probs in order to compensate for the ill-matched assumption of independent observations.
-c<em>Corpus</em><a	name="spr_fwdbwd_probs.c" class="el"> File with corpus entries or segmentations.
-range<em>b:e</em><a	name="spr_fwdbwd_probs.range" class="el"> Optional begin and end entry the corpus/segmentation file. Counting starts at 0.
-ssp<em>script</em><a	name="spr_fwdbwd_probs.ssp" class="el"> The signal processing script used to preprocess the input data.
-obs<em>ObsDir</em><a	name="spr_fwdbwd_probs.obs" class="el"> Observation directory name.
-suffix<em>FileSuffix</em><a	name="spr_fwdbwd_probs.suffix" class="el"> File suffix of the observation files (without leading '.').
-arcd<em>FileName</em><a	name="spr_fwdbwd_probs.arcd" class="el"> Unit file name (.arcd or .cd format).
-h<em>FileName</em><a	name="spr_fwdbwd_probs.h" class="el"> The input HMM file.
-g<em>FileName</em><a	name="spr_fwdbwd_probs.g" class="el"> The input MVG file (gaussians).
-sel<em>FileName</em><a	name="spr_fwdbwd_probs.sel" class="el"> The input select file name (tied gaussian).
-am_opt<em>Options</em><a	name="spr_fwdbwd_probs.am_opt" class="el"> Extra options for loading the acoustic model. A non-default acoustic model can be selected by having '=<am_type>;' as first option. See cwr_am_tbl.c for a list of acoustic models available.
-top_n<em>Number(s)</em><a	name="spr_fwdbwd_probs.top_n" class="el"> Only take the top-N gaussians into account when calculating output probabilities. If one value is given, it is used for all mixtures. Else a value per mixture must be given, separated by commas. Use '0' to set top_n to the number of gaussians in the mixture.
-rmg<em>rmg_params</em><a	name="spr_fwdbwd_probs.rmg" class="el"> The parameters for the quick selection of gaussians. If one value is given, it is used for all mixtures. Else a value per mixture must be given, separated by commas. Use 'no' if no quick selection is wanted. See rm_gauss.c for a description of the parameters.
-LMout<em>Value</em><a	name="spr_fwdbwd_probs.LMout" class="el"> Floor the state likelihoods of an observation using a fraction of the unconditional likelihood of the observation (weighted sum of the state likelihoods). Practically necessary if only few gaussians are evalutated (-top_n or -rmg options). The value given offset an automatically determined log10(fraction). Use -100 to turn the flooring off, and 0.0 to use the default.automatically.
-NOGSflag	no gauss sel Forgo the (sentence level) lexicon based Gaussian selection. The lexicon based Gaussian selection speeds up the decoding but may interfere with score normalization techniques that assume all Gaussians were evaluated.
-ci<em>unit	description files The two units description files seperated by white-space. The first file just lists the units (phones). The second file describes the context dependencies.
-cd<em>unit	description files The two units description files seperated by white-space. The first file just lists the units (phones). The second file describes the context dependencies.
-d<em>dictionary</em><a	name="spr_fwdbwd_probs.d" class="el"> Dictionary file name.
-unwind<em>unwind	format Define the parameters to modify the word transcriptions. See spr_cwr_lex_desc_read() for more details.

Fwd-bwd alignment (viterbi alike) te determine boundary probabilities.

Author: Kris Demuynck

Date: 10/04/01