PocketSphinx 5prealpha
ptm_mgau.h
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42#ifndef __PTM_MGAU_H__
43#define __PTM_MGAU_H__
44
45/* SphinxBase headesr. */
46#include <sphinxbase/fe.h>
47#include <sphinxbase/logmath.h>
48#include <sphinxbase/mmio.h>
49
50/* Local headers. */
51#include "acmod.h"
52#include "hmm.h"
53#include "bin_mdef.h"
54#include "ms_gauden.h"
55
56typedef struct ptm_mgau_s ptm_mgau_t;
57
58typedef struct ptm_topn_s {
59 int32 cw;
60 int32 score;
62
63typedef struct ptm_fast_eval_s {
65 bitvec_t *mgau_active;
67
68struct ptm_mgau_s {
70 cmd_ln_t *config;
72 int32 n_sen;
73 uint8 *sen2cb;
74 uint8 ***mixw;
75 mmio_file_t *sendump_mmap;/* Memory map for mixw (or NULL if not mmap) */
76 uint8 *mixw_cb; /* Mixture weight codebook, if any (assume it contains 16 values) */
77 int16 max_topn;
78 int16 ds_ratio;
79
84 /* Log-add table for compressed values. */
85 logmath_t *lmath_8b;
86 /* Log-add object for reloading means/variances. */
87 logmath_t *lmath;
88};
89
90ps_mgau_t *ptm_mgau_init(acmod_t *acmod, bin_mdef_t *mdef);
91void ptm_mgau_free(ps_mgau_t *s);
93 int16 *senone_scores,
94 uint8 *senone_active,
95 int32 n_senone_active,
96 mfcc_t **featbuf,
97 int32 frame,
98 int32 compallsen);
99int ptm_mgau_mllr_transform(ps_mgau_t *s,
100 ps_mllr_t *mllr);
101
102
103#endif /* __PTM_MGAU_H__ */
Acoustic model structures for PocketSphinx.
Binary format model definition files, with support for heterogeneous topologies and variable-size N-p...
Implementation of HMM base structure.
(Sphinx 3.0 specific) Gaussian density module.
int ptm_mgau_frame_eval(ps_mgau_t *s, int16 *senone_scores, uint8 *senone_active, int32 n_senone_active, mfcc_t **featbuf, int32 frame, int32 compallsen)
Compute senone scores for the active senones.
Definition ptm_mgau.c:409
Acoustic model structure.
Definition acmod.h:148
Multivariate gaussian mixture density parameters.
Definition ms_gauden.h:82
Feature space linear transform structure.
Definition acmod.h:82
ptm_topn_t *** topn
Top-N for each codebook (mgau x feature x topn)
Definition ptm_mgau.h:64
bitvec_t * mgau_active
Set of active codebooks.
Definition ptm_mgau.h:65
uint8 * sen2cb
Senone to codebook mapping.
Definition ptm_mgau.h:73
ptm_fast_eval_t * hist
Fast evaluation info for past frames.
Definition ptm_mgau.h:80
cmd_ln_t * config
Configuration parameters.
Definition ptm_mgau.h:70
ptm_fast_eval_t * f
Fast eval info for current frame.
Definition ptm_mgau.h:81
int32 n_sen
Number of senones.
Definition ptm_mgau.h:72
int n_fast_hist
Number of past frames tracked.
Definition ptm_mgau.h:82
ps_mgau_t base
base structure.
Definition ptm_mgau.h:69
gauden_t * g
Set of Gaussians.
Definition ptm_mgau.h:71
uint8 *** mixw
Mixture weight distributions by feature, codeword, senone.
Definition ptm_mgau.h:74
int32 cw
Codeword index.
Definition ptm_mgau.h:59
int32 score
Score.
Definition ptm_mgau.h:60