00001 00018 /* 00019 * Copyright (c) 1991-2007 Kawahara Lab., Kyoto University 00020 * Copyright (c) 2000-2005 Shikano Lab., Nara Institute of Science and Technology 00021 * Copyright (c) 2005-2007 Julius project team, Nagoya Institute of Technology 00022 * All rights reserved 00023 */ 00024 00025 #include <sent/stddefs.h> 00026 #include <sent/htk_hmm.h> 00027 #include <sent/htk_param.h> 00028 #include <sent/hmm.h> 00029 #include <sent/hmm_calc.h> 00030 00040 LOGPROB 00041 calc_mix(HMMWork *wrk) 00042 { 00043 int i; 00044 LOGPROB logprob = LOG_ZERO; 00045 int n; 00046 LOGPROB *s; 00047 PROB *w; 00048 int *id; 00049 00050 /* compute Gaussian set */ 00051 (*(wrk->compute_gaussset))(wrk, wrk->OP_state->b, wrk->OP_state->mix_num, NULL); 00052 /* computed Gaussians will be set in: 00053 score ... OP_calced_score[0..OP_calced_num] 00054 id ... OP_calced_id[0..OP_calced_num] */ 00055 00056 n = wrk->OP_calced_num; 00057 s = wrk->OP_calced_score; 00058 w = wrk->OP_state->bweight; 00059 id = wrk->OP_calced_id; 00060 00061 /* sum */ 00062 for(i=0;i<n;i++) { 00063 s[i] += w[id[i]]; 00064 } 00065 logprob = addlog_array(s, n); 00066 if (logprob <= LOG_ZERO) return LOG_ZERO; 00067 return (logprob * INV_LOG_TEN); 00068 }
1.5.4