s2_semi_mgau.h
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/*
* Interface for "semi-continuous vector quantization", a.k.a. Sphinx2
* fast GMM computation.
*/
#ifndef __S2_SEMI_MGAU_H__
#define __S2_SEMI_MGAU_H__
/* SphinxBase headesr. */
#include <sphinxbase/fe.h>
#include <sphinxbase/logmath.h>
#include <sphinxbase/mmio.h>
/* Local headers. */
#include "acmod.h"
#include "hmm.h"
#include "bin_mdef.h"
#include "ms_gauden.h"
typedef struct vqFeature_s vqFeature_t;
typedef struct s2_semi_mgau_s s2_semi_mgau_t;
struct s2_semi_mgau_s {
ps_mgau_t base;
cmd_ln_t *config; /* configuration parameters */
gauden_t *g; /* Set of Gaussians (pointers below point in here and will go away soon) */
uint8 ***mixw; /* mixture weight distributions */
mmio_file_t *sendump_mmap;/* memory map for mixw (or NULL if not mmap) */
uint8 *mixw_cb; /* mixture weight codebook, if any (assume it contains 16 values) */
int32 n_sen; /* Number of senones */
uint8 *topn_beam; /* Beam for determining per-frame top-N densities */
int16 max_topn;
int16 ds_ratio;
vqFeature_t ***topn_hist;
uint8 **topn_hist_n;
vqFeature_t **f;
int n_topn_hist;
/* Log-add table for compressed values. */
logmath_t *lmath_8b;
/* Log-add object for reloading means/variances. */
logmath_t *lmath;
};
ps_mgau_t *s2_semi_mgau_init(acmod_t *acmod);
void s2_semi_mgau_free(ps_mgau_t *s);
int s2_semi_mgau_frame_eval(ps_mgau_t *s,
int16 *senone_scores,
uint8 *senone_active,
int32 n_senone_active,
mfcc_t **featbuf,
int32 frame,
int32 compallsen);
int s2_semi_mgau_mllr_transform(ps_mgau_t *s,
ps_mllr_t *mllr);
#endif /* __S2_SEMI_MGAU_H__ */
s2_semi_mgau_s::n_topn_hist
int n_topn_hist
Number of past frames tracked.
Definition: s2_semi_mgau.h:77
s2_semi_mgau_s::topn_hist
vqFeature_t *** topn_hist
Top-N scores and codewords for past frames.
Definition: s2_semi_mgau.h:74
bin_mdef.h
Binary format model definition files, with support for heterogeneous topologies and variable-size N-p...
hmm.h
Implementation of HMM base structure.
s2_semi_mgau_s
Definition: s2_semi_mgau.h:59
ms_gauden.h
(Sphinx 3.0 specific) Gaussian density module.
ps_mllr_s
Feature space linear transform structure.
Definition: acmod.h:82
s2_semi_mgau_s::topn_hist_n
uint8 ** topn_hist_n
Variable top-N for past frames.
Definition: s2_semi_mgau.h:75
gauden_t
Multivariate gaussian mixture density parameters.
Definition: ms_gauden.h:82
acmod.h
Acoustic model structures for PocketSphinx.
s2_semi_mgau_s::base
ps_mgau_t base
base structure.
Definition: s2_semi_mgau.h:60
s2_semi_mgau_s::f
vqFeature_t ** f
Topn-N for currently scoring frame.
Definition: s2_semi_mgau.h:76
acmod_s
Acoustic model structure.
Definition: acmod.h:148
ps_mgau_s
Definition: acmod.h:113
vqFeature_s
Definition: s2_semi_mgau.c:70