phone_loop_search.h
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#ifndef __PHONE_LOOP_SEARCH_H__
#define __PHONE_LOOP_SEARCH_H__
/* SphinxBase headers. */
#include <sphinxbase/cmd_ln.h>
#include <sphinxbase/logmath.h>
#include <sphinxbase/ngram_model.h>
#include <sphinxbase/listelem_alloc.h>
/* Local headers. */
#include "pocketsphinx_internal.h"
#include "hmm.h"
struct phone_loop_renorm_s {
int frame_idx;
int32 norm;
};
typedef struct phone_loop_renorm_s phone_loop_renorm_t;
struct phone_loop_search_s {
ps_search_t base;
hmm_t *hmms;
hmm_context_t *hmmctx;
int16 frame;
int16 n_phones;
int32 **pen_buf;
int16 pen_buf_ptr;
int32 *penalties;
float64 penalty_weight;
int32 best_score;
int32 beam;
int32 pbeam;
int32 pip;
int window;
glist_t renorm;
};
typedef struct phone_loop_search_s phone_loop_search_t;
ps_search_t *phone_loop_search_init(cmd_ln_t *config,
acmod_t *acmod,
dict_t *dict);
#define phone_loop_search_score(pls,ci) \
((pls == NULL) ? 0 : (pls->penalties[ci]))
#endif /* __PHONE_LOOP_SEARCH_H__ */
hmm.h
Implementation of HMM base structure.
pocketsphinx_internal.h
Internal implementation of PocketSphinx decoder.
acmod_s
Acoustic model structure.
Definition acmod.h:148
dict_t
a structure for a dictionary.
Definition dict.h:76
hmm_context_t
Shared information between a set of HMMs.
hmm_t
An individual HMM among the HMM search space.
phone_loop_renorm_s
Renormalization event.
Definition phone_loop_search.h:63
phone_loop_renorm_s::norm
int32 norm
Normalization constant.
Definition phone_loop_search.h:65
phone_loop_renorm_s::frame_idx
int frame_idx
Frame of renormalization.
Definition phone_loop_search.h:64
phone_loop_search_s
Phone loop search structure.
Definition phone_loop_search.h:72
phone_loop_search_s::penalties
int32 * penalties
Penalties for CI phones in current frame.
Definition phone_loop_search.h:80
phone_loop_search_s::frame
int16 frame
Current frame being searched.
Definition phone_loop_search.h:76
phone_loop_search_s::beam
int32 beam
HMM pruning beam width.
Definition phone_loop_search.h:84
phone_loop_search_s::renorm
glist_t renorm
List of renormalizations.
Definition phone_loop_search.h:88
phone_loop_search_s::window
int window
Window size for phoneme lookahead.
Definition phone_loop_search.h:87
phone_loop_search_s::pen_buf_ptr
int16 pen_buf_ptr
Pointer for frame to fill in penalty buffer.
Definition phone_loop_search.h:79
phone_loop_search_s::hmmctx
hmm_context_t * hmmctx
HMM context structure.
Definition phone_loop_search.h:75
phone_loop_search_s::hmms
hmm_t * hmms
Basic HMM structures for CI phones.
Definition phone_loop_search.h:74
phone_loop_search_s::n_phones
int16 n_phones
Size of phone array.
Definition phone_loop_search.h:77
phone_loop_search_s::pbeam
int32 pbeam
Phone exit pruning beam width.
Definition phone_loop_search.h:85
phone_loop_search_s::pip
int32 pip
Phone insertion penalty ("language score").
Definition phone_loop_search.h:86
phone_loop_search_s::pen_buf
int32 ** pen_buf
Penalty buffer.
Definition phone_loop_search.h:78
phone_loop_search_s::penalty_weight
float64 penalty_weight
Weighting factor for penalties.
Definition phone_loop_search.h:81
phone_loop_search_s::base
ps_search_t base
Base search structure.
Definition phone_loop_search.h:73
phone_loop_search_s::best_score
int32 best_score
Best Viterbi score in current frame.
Definition phone_loop_search.h:83
ps_search_s
Base structure for search module.
Definition pocketsphinx_internal.h:98