hmm_check.c File Reference

Functions for checking triphone model. More...

#include <julius.h>

Include dependency graph for hmm_check.c:

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Defines
#define	PHSTEP   10
	Malloc step for phoneme conversion.
Functions
static HMM_Logical **	new_str2phseq (char *str, HTK_HMM_INFO *hmminfo, int *len_ret)
	Convert phoneme sequences to logical HMM sequences, and output the result.
static void	test_expand_triphone (HTK_HMM_INFO *hmminfo)
void	hmm_check (HTK_HMM_INFO *hmminfo, WORD_INFO *winfo)

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Detailed Description

Functions for checking triphone model.

Author:

Akinobu LEE

Date:

Thu Mar 17 20:50:07 2005

Revision

1.1.1.1

Definition in file hmm_check.c.

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Function Documentation

static HMM_Logical** new_str2phseq (  char *  str, HTK_HMM_INFO *  hmminfo, int *  len_ret )  [static]

Convert phoneme sequences to logical HMM sequences, and output the result. This function is for testing procedure to convert words in dictionary to corresponding HMM sequences in Julius/Julian, given an HMMList and HTK HMM definition. Given a space-separated list of phoneme names in a string, each phonemes will be converted to context-dependent style (if using triphone model), and then converted to HMM sequence that will finally be used for recognition. Then, the following data will be output for all HMM: Original phone HMM name, Logical HMM name that is converted from above, Physical or pseudo HMM name that will actually be used. Additionally, specifying '|' in the string gives a word boundary between phonemes, and triphone conversion will consider the cross-word expansion. Parameters: str  [i/o] string that contains space-saparated phoneme sequence. hmminfo  [in] HMM definition structure len_ret  [out] num of elements in the return value Returns: the newly allocated pointer array to the converted logical HMMs. Definition at line 80 of file hmm_check.c. Referenced by test_expand_triphone().

static void test_expand_triphone (  HTK_HMM_INFO *  hmminfo  )  [static]

Read in line from stdin as phoneme sequence and try convertion to triphone for checking. Parameters: hmminfo  [in] HMM definition structure Definition at line 252 of file hmm_check.c. Referenced by hmm_check().

void hmm_check (  HTK_HMM_INFO *  hmminfo, WORD_INFO *  winfo )

Mode to do interactive triphone conversion check ("-check hmm"). Parameters: hmminfo  [in] HMM definition structure winfo  [in] word dictionary Definition at line 289 of file hmm_check.c. Referenced by initialize_dict().

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