ptm_mgau.h
Go to the documentation of this file.
/* -*- c-basic-offset: 4; indent-tabs-mode: nil -*- */
/* ====================================================================
* Copyright (c) 1999-2010 Carnegie Mellon University. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* This work was supported in part by funding from the Defense Advanced
* Research Projects Agency and the National Science Foundation of the
* United States of America, and the CMU Sphinx Speech Consortium.
*
* THIS SOFTWARE IS PROVIDED BY CARNEGIE MELLON UNIVERSITY ``AS IS'' AND
* ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY
* NOR ITS EMPLOYEES BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* ====================================================================
*
*/
#ifndef __PTM_MGAU_H__
#define __PTM_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 ptm_mgau_s ptm_mgau_t;
typedef struct ptm_topn_s {
int32 cw;
int32 score;
} ptm_topn_t;
typedef struct ptm_fast_eval_s {
ptm_topn_t ***topn;
bitvec_t *mgau_active;
} ptm_fast_eval_t;
struct ptm_mgau_s {
ps_mgau_t base;
cmd_ln_t *config;
gauden_t *g;
int32 n_sen;
uint8 *sen2cb;
uint8 ***mixw;
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) */
int16 max_topn;
int16 ds_ratio;
ptm_fast_eval_t *hist;
ptm_fast_eval_t *f;
int n_fast_hist;
/* Log-add table for compressed values. */
logmath_t *lmath_8b;
/* Log-add object for reloading means/variances. */
logmath_t *lmath;
};
ps_mgau_t *ptm_mgau_init(acmod_t *acmod, bin_mdef_t *mdef);
void ptm_mgau_free(ps_mgau_t *s);
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);
int ptm_mgau_mllr_transform(ps_mgau_t *s,
ps_mllr_t *mllr);
#endif /* __PTM_MGAU_H__ */
acmod.h
Acoustic model structures for PocketSphinx.
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.
ms_gauden.h
(Sphinx 3.0 specific) Gaussian density module.
ptm_mgau_frame_eval
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:414
acmod_s
Acoustic model structure.
Definition acmod.h:148
bin_mdef_s
Definition bin_mdef.h:117
gauden_t
Multivariate gaussian mixture density parameters.
Definition ms_gauden.h:82
ps_mgau_s
Definition acmod.h:113
ps_mllr_s
Feature space linear transform structure.
Definition acmod.h:82
ptm_fast_eval_s
Definition ptm_mgau.h:63
ptm_fast_eval_s::topn
ptm_topn_t *** topn
Top-N for each codebook (mgau x feature x topn)
Definition ptm_mgau.h:64
ptm_fast_eval_s::mgau_active
bitvec_t * mgau_active
Set of active codebooks.
Definition ptm_mgau.h:65
ptm_mgau_s
Definition ptm_mgau.h:68
ptm_mgau_s::sen2cb
uint8 * sen2cb
Senone to codebook mapping.
Definition ptm_mgau.h:73
ptm_mgau_s::hist
ptm_fast_eval_t * hist
Fast evaluation info for past frames.
Definition ptm_mgau.h:80
ptm_mgau_s::config
cmd_ln_t * config
Configuration parameters.
Definition ptm_mgau.h:70
ptm_mgau_s::f
ptm_fast_eval_t * f
Fast eval info for current frame.
Definition ptm_mgau.h:81
ptm_mgau_s::n_sen
int32 n_sen
Number of senones.
Definition ptm_mgau.h:72
ptm_mgau_s::n_fast_hist
int n_fast_hist
Number of past frames tracked.
Definition ptm_mgau.h:82
ptm_mgau_s::base
ps_mgau_t base
base structure.
Definition ptm_mgau.h:69
ptm_mgau_s::g
gauden_t * g
Set of Gaussians.
Definition ptm_mgau.h:71
ptm_mgau_s::mixw
uint8 *** mixw
Mixture weight distributions by feature, codeword, senone.
Definition ptm_mgau.h:74
ptm_topn_s
Definition ptm_mgau.h:58
ptm_topn_s::cw
int32 cw
Codeword index.
Definition ptm_mgau.h:59
ptm_topn_s::score
int32 score
Score.
Definition ptm_mgau.h:60