1. Initial HMM Model

2. 語音訊號 表示成所有中文語 言單元 經過 lexicon 字彙庫找出所 有的子音 (22) 、母音 (39) 、 32mixture 32 個 µ 、 v 32mixture VQ 32 個 µ 、 v MLVQ 左至右 HMM MLVQ u 、 v 、 c 、 det Feature, ( 查 cut) VQ 412 0 0 29 313 0 30 31 313 1 32 35 313 2 36 40 313 3 41 42 313 4 43 59 313 5 60 63 313 6 64 66 313 7 67 71 412 0 72 79 initial final

3. begin Allocate initial & final model parameters transition prob mean variance weight determinant Open the database list file (fp_list) Load lexicon Generate new temp files all speakers and all utterances read feature and get delta term SBR read cut information all syllables all states write state frames to the cls file of the corresponding state model update model’s and state’s count Assign the mixture number of initial and final states Estimate the state transition prob 0 1 m> I_MODEL 0 1 s s> I_STATE Read frames from the cls file m VQ process get mixture means Initialize MLVQ determine variance weight MLVQ process get mean, variance, weight, determinant 0 1m> F_MODEL 0 1 s s> F_STATE m Initialize MLVQ determine variance weight Save 411 parameters of HMM model Delete old cls files end Remove model’s temp file initialize model/state’s count Read frames from the cls file MLVQ process get mean, variance weight, determinant 411.c VQ process get mixture means