- Generated by
1.8.5
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PocketSphinx
5prealpha
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Acoustic model structure. More...
#include <acmod.h>
Data Fields | |
| cmd_ln_t * | config |
| Configuration. More... | |
| logmath_t * | lmath |
| Log-math computation. More... | |
| glist_t | strings |
| Temporary acoustic model filenames. More... | |
| fe_t * | fe |
| Acoustic feature computation. More... | |
| feat_t * | fcb |
| Dynamic feature computation. More... | |
| bin_mdef_t * | mdef |
| Model definition. More... | |
| tmat_t * | tmat |
| Transition matrices. More... | |
| ps_mgau_t * | mgau |
| Model parameters. More... | |
| ps_mllr_t * | mllr |
| Speaker transformation. More... | |
| int16 * | senone_scores |
| GMM scores for current frame. More... | |
| bitvec_t * | senone_active_vec |
| Active GMMs in current frame. More... | |
| uint8 * | senone_active |
| Array of deltas to active GMMs. More... | |
| int | senscr_frame |
| Frame index for senone_scores. More... | |
| int | n_senone_active |
| Number of active GMMs. More... | |
| int | log_zero |
| Zero log-probability value. More... | |
| mfcc_t ** | mfc_buf |
| Temporary buffer of acoustic features. More... | |
| mfcc_t *** | feat_buf |
| Temporary buffer of dynamic features. More... | |
| FILE * | rawfh |
| File for writing raw audio data. More... | |
| FILE * | mfcfh |
| File for writing acoustic feature data. More... | |
| FILE * | senfh |
| File for writing senone score data. More... | |
| FILE * | insenfh |
| Input senone score file. More... | |
| long * | framepos |
| File positions of recent frames in senone file. More... | |
| int16 * | rawdata |
| int32 | rawdata_size |
| int32 | rawdata_pos |
| uint8 | state |
| State of utterance processing. More... | |
| uint8 | compallsen |
| Compute all senones? | |
| uint8 | grow_feat |
| Whether to grow feat_buf. More... | |
| uint8 | insen_swap |
| Whether to swap input senone score. More... | |
| frame_idx_t | utt_start_frame |
| Index of the utterance start in the stream, all timings are relative to that. More... | |
| frame_idx_t | output_frame |
| Index of next frame of dynamic features. More... | |
| frame_idx_t | n_mfc_alloc |
| Number of frames allocated in mfc_buf. | |
| frame_idx_t | n_mfc_frame |
| Number of frames active in mfc_buf. | |
| frame_idx_t | mfc_outidx |
| Start of active frames in mfc_buf. | |
| frame_idx_t | n_feat_alloc |
| Number of frames allocated in feat_buf. | |
| frame_idx_t | n_feat_frame |
| Number of frames active in feat_buf. | |
| frame_idx_t | feat_outidx |
| Start of active frames in feat_buf. | |
Acoustic model structure.
This object encapsulates all stages of acoustic processing, from raw audio input to acoustic score output. The reason for grouping all of these modules together is that they all have to "agree" in their parameterizations, and the configuration of the acoustic and dynamic feature computation is completely dependent on the parameters used to build the original acoustic model (which should by now always be specified in a feat.params file).
Because there is not a one-to-one correspondence from blocks of input audio or frames of input features to frames of acoustic scores (due to dynamic feature calculation), results may not be immediately available after input, and the output results will not correspond to the last piece of data input.
TODO: In addition, this structure serves the purpose of queueing frames of features (and potentially also scores in the future) for asynchronous passes of recognition operating in parallel.
| cmd_ln_t* acmod_s::config |
Configuration.
Definition at line 150 of file acmod.h.
Referenced by acmod_free(), acmod_init(), acmod_set_insenfh(), and acmod_write_senfh_header().
| feat_t* acmod_s::fcb |
Dynamic feature computation.
Definition at line 156 of file acmod.h.
Referenced by acmod_end_utt(), acmod_free(), acmod_init(), acmod_process_cep(), acmod_process_feat(), and ps_get_feat().
| fe_t* acmod_s::fe |
Acoustic feature computation.
Definition at line 155 of file acmod.h.
Referenced by acmod_end_utt(), acmod_free(), acmod_init(), acmod_process_raw(), acmod_start_stream(), acmod_start_utt(), ps_get_fe(), and ps_get_in_speech().
| mfcc_t*** acmod_s::feat_buf |
Temporary buffer of dynamic features.
Definition at line 174 of file acmod.h.
Referenced by acmod_free(), acmod_get_frame(), acmod_init(), acmod_process_cep(), acmod_process_feat(), and acmod_score().
| long* acmod_s::framepos |
File positions of recent frames in senone file.
Definition at line 179 of file acmod.h.
Referenced by acmod_free(), acmod_init(), acmod_read_scores(), and acmod_score().
| uint8 acmod_s::grow_feat |
Whether to grow feat_buf.
Definition at line 189 of file acmod.h.
Referenced by acmod_process_cep(), acmod_process_feat(), acmod_read_scores(), and acmod_set_grow().
| uint8 acmod_s::insen_swap |
| FILE* acmod_s::insenfh |
Input senone score file.
Definition at line 178 of file acmod.h.
Referenced by acmod_read_scores(), acmod_score(), and acmod_set_insenfh().
| logmath_t* acmod_s::lmath |
Log-math computation.
Definition at line 151 of file acmod.h.
Referenced by acmod_init(), acmod_write_senfh_header(), and ps_lattice_init_search().
| int acmod_s::log_zero |
| bin_mdef_t* acmod_s::mdef |
Model definition.
Definition at line 159 of file acmod.h.
Referenced by acmod_best_score(), acmod_clear_active(), acmod_flags2list(), acmod_free(), acmod_init(), acmod_write_scores(), acmod_write_senfh_header(), ngram_search_init(), ps_add_word(), ps_load_dict(), and ps_reinit().
| mfcc_t** acmod_s::mfc_buf |
Temporary buffer of acoustic features.
Definition at line 173 of file acmod.h.
Referenced by acmod_end_utt(), acmod_free(), acmod_init(), and acmod_process_raw().
| FILE* acmod_s::mfcfh |
File for writing acoustic feature data.
Definition at line 176 of file acmod.h.
Referenced by acmod_end_utt(), acmod_free(), acmod_process_cep(), and acmod_set_mfcfh().
| ps_mgau_t* acmod_s::mgau |
Model parameters.
Definition at line 161 of file acmod.h.
Referenced by acmod_advance(), acmod_free(), acmod_rewind(), acmod_score(), acmod_start_utt(), and acmod_update_mllr().
| ps_mllr_t* acmod_s::mllr |
Speaker transformation.
Definition at line 162 of file acmod.h.
Referenced by acmod_free(), and acmod_update_mllr().
| int acmod_s::n_senone_active |
Number of active GMMs.
Definition at line 169 of file acmod.h.
Referenced by acmod_best_score(), acmod_clear_active(), acmod_flags2list(), acmod_read_scores(), acmod_score(), and acmod_start_utt().
| frame_idx_t acmod_s::output_frame |
Index of next frame of dynamic features.
Definition at line 194 of file acmod.h.
Referenced by acmod_advance(), acmod_flags2list(), acmod_read_scores(), acmod_rewind(), acmod_start_utt(), ps_end_utt(), ps_get_n_frames(), and ps_get_utt_time().
| FILE* acmod_s::rawfh |
File for writing raw audio data.
Definition at line 175 of file acmod.h.
Referenced by acmod_end_utt(), acmod_free(), acmod_process_raw(), and acmod_set_rawfh().
| FILE* acmod_s::senfh |
File for writing senone score data.
Definition at line 177 of file acmod.h.
Referenced by acmod_end_utt(), acmod_free(), acmod_score(), and acmod_set_senfh().
| uint8* acmod_s::senone_active |
Array of deltas to active GMMs.
Definition at line 167 of file acmod.h.
Referenced by acmod_best_score(), acmod_flags2list(), acmod_free(), acmod_init(), and acmod_score().
| bitvec_t* acmod_s::senone_active_vec |
Active GMMs in current frame.
Definition at line 166 of file acmod.h.
Referenced by acmod_clear_active(), acmod_flags2list(), acmod_free(), and acmod_init().
| int16* acmod_s::senone_scores |
GMM scores for current frame.
Definition at line 165 of file acmod.h.
Referenced by acmod_best_score(), acmod_free(), acmod_init(), and acmod_score().
| int acmod_s::senscr_frame |
Frame index for senone_scores.
Definition at line 168 of file acmod.h.
Referenced by acmod_read_scores(), acmod_rewind(), acmod_score(), and acmod_start_utt().
| uint8 acmod_s::state |
State of utterance processing.
Definition at line 187 of file acmod.h.
Referenced by acmod_end_utt(), acmod_init(), acmod_process_cep(), acmod_start_utt(), ps_end_utt(), ps_process_raw(), ps_set_search(), and ps_start_utt().
| glist_t acmod_s::strings |
| tmat_t* acmod_s::tmat |
Transition matrices.
Definition at line 160 of file acmod.h.
Referenced by acmod_free(), and ngram_search_init().
| frame_idx_t acmod_s::utt_start_frame |
Index of the utterance start in the stream, all timings are relative to that.
Definition at line 192 of file acmod.h.
Referenced by acmod_init(), acmod_process_raw(), acmod_start_stream(), and acmod_stream_offset().
1.8.5