vithist_t Struct Reference

#include <vithist.h>

List of all members.

Public Attributes
vithist_entry_t **	entry
int32 *	frame_start
int32	n_entry
int32	n_frm
int32	n_ci
int32	bghist
int32	wbeam
int32 *	bestscore
int32 *	bestvh
vh_lms2vh_t **	lms2vh_root
glist_t	lwidlist

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Detailed Description

Memory management of Viterbi history entries done in blocks. Initially, one block of VITHIST_BLKSIZE entries allocated. If exhausted, another block allocated, and so on. So we can have several discontiguous blocks allocated. Entries are identified by a global, running sequence no.

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Member Data Documentation

int32* vithist_t::bestscore

Best word exit score in each frame

int32* vithist_t::bestvh

Vithist entry ID with the best exit score in each frame

int32 vithist_t::bghist

If TRUE (bigram-mode) only one entry/word/frame; otherwise multiple entries allowed, one per distinct LM state

vithist_entry_t** vithist_t::entry

entry[i][j]= j-th entry in the i-th block allocated

int32* vithist_t::frame_start

For each frame, the first vithist ID in that frame; (the last is just before the first of the next frame)

vh_lms2vh_t** vithist_t::lms2vh_root

lms2vh[w]= Root of LM states ending in w in current frame

glist_t vithist_t::lwidlist

List of LM word IDs with entries in lms2vh_root

int32 vithist_t::n_ci

No. of CI phones

int32 vithist_t::n_entry

Total #entries used (generates global seq no. or ID)

int32 vithist_t::n_frm

No. of frames processed so far in this utterance

int32 vithist_t::wbeam

Pruning beamwidth

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The documentation for this struct was generated from the following file:

• /.automount/bigbird/root/usr4/sphinx/project/SourceForge/regression/doxygen715/sphinx3/include/vithist.h

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