Initial HMM Model

1. Initial HMM Model

2. 語音訊號 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 Feature , (查cut) 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)、 左至右HMM initial final 32mixture VQ 32mixture VQ 32個µ、v MLVQ 32個µ、v MLVQ u、v、c、det u、v、c、det

3. begin 411.c m m • Allocate initial & final model parameters • transition prob • mean • variance • weight • determinant 1 m> F_MODEL m> I_MODEL 1 0 0 s s 1 s> F_STATE 1 s> I_STATE 0 0 Open the database list file (fp_list) Read frames from the cls file Read frames from the cls file Load lexicon • VQ process • get mixture means • VQ process • get mixture means • Remove model’s temp file • initialize • model/state’s count • Initialize MLVQ • determine • variance • weight • Initialize MLVQ • determine • variance • weight • 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 • MLVQ process • get mean, variance weight, determinant • MLVQ process • get mean, variance, weight, determinant Save 411 parameters of HMM model Assign the mixture number of initial and final states Delete old cls files end Estimate the state transition prob