專題研究 (2) HINIT + HREST + HEREST
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專題研究 (2)HINIT + HREST + HEREST
Prof. Lin-Shan Lee, TA. Yun-Nung Chen
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HInit + HRest
Acoustic Model Initialization
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Feature Extraction - MFCC3
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Example of MFCC4
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Acoustic Model
Hidden Markov Model/Gaussian Mixture Model Acoustic model unit : Initial Final set 3 states per model 1 Gaussian mixture per state
We will increase Gaussian mixture next time Example
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Example of HMM6
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Flow Chart
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Phone Model Training8
Train a phone model “ai” Label data
Example
HInit – find a starting point HRest – climb hill
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HERest
Acoustic Model Training9
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Acoustic Model Training10
Add “ai” into “hmm.set.no_ai” Other phones have been trained
HERest Also hill climbing Consider whole utterance Do several times
sil liou (六) san (三) #er (二) sil
MFCC features
sil
Lable:
sil
liou san #er
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HInit + HRest + HERest
Appendix11
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HInit12
Hinit -A print command
line -T 1 trace flag to 1 -C ./config/train.cfg set config file -l ai set segment label -o ai hmm def output -S ./scp/train.scp set file of features -L /share/data/TrainingLabel/ set input label
dir proto hmm file
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HRest13
HRest -A print command
line -T 1 trace flag to 1 -C ./config/train.cfg set config file -l ai set segment label -S ./scp/train.scp set file of features -L /share/data/TrainingLabel/ set input label dir ai hmm file
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HERest14
HERest -A print command
line -T 1 trace flag to 1 -C ./config/train.cfg set config file -S ./scp/train.scp set file of features -L /share/data/TrainingLabel/ set input label dir -H hmmset.mmf load hmm file -M hmm_herest write hmm file
dir ./list/phone.lst hmm list
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HInit + HRest + HERest
Homework15
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To Do16
Acoustic model initialization HInit +HRest
Train phone model “ai” Acoustic model re-training
HERest HTKBook Chap 8.1 – 8.5
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Saving your time…
About Linux17
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To Save Your Time …18
Install Cygwin Ref: 工作站使用說明
Install HTK on your PC Download HTK from 課程網站
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Tips (cygwin)19
選擇你要的套件 :