Step 5 - Generating the Transforms

Create Regression Class Tree

1. First, create the regtree.hed edit script in your voxforge/adapt directory:

RN "models" LS "stats" RC 32 "rtree"

2. Next create a new hmm16 directory in your voxforge/adapt folder.

3. Then execute the HTK Tool HHEd to build the regression class tree:

$/home/yourusername/htk-3.2.1/bin.linux/HHEd -H macros -H hmmdefs -M hmm16 regtree.hed tiedlist

The new models, together with the regression class tree information, are written to the hmm16 directory:

• hmmdefs
• macros
  

Perform Static Adaptation

1st pass - global adaptation

1. Execute the HEAdapt command as follows: 

$/home/yourusername/htk-3.2.1/bin.linux/HEAdapt -C config -g -S adapt.scp -I adaptPhones.mlf -H hmm16/macros -H hmm16/hmmdefs -K global.tmf -t 250.0 150.0 3000.0 tiedlist

This creates the global.tmf file in your voxforge directory - which is to be used as input into the second pass.

2nd pass - transform model set

2. Create the hmmAdapt directory

3. Then run HEAdapt once more:

$/home/yourusername/htk-3.2.1/bin.linux/HEAdapt -C config -S adapt.scp -I adaptPhones.mlf -H hmm16/macros -H hmm16/hmmdefs -J global.tmf -M hmmAdapt -t 250.0 150.0 3000.0  -j 0.9 -i 10 tiedlist

this creates 2 files in the hmmAdapt directory:

• hmmdefs
• macros
  

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Comments

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By bejimed - 3/22/2012

After installing htk 3.4.1 on my ubuntu system, i try to exexute this command
HERest -C config -C config.global -S adapt.scp -I adaptPhones.mlf -H hmm9/macros -u a -H hmm9/hmmdefs -z -K xforms mllr1 -J classes -h '*/%%%%%%_*.mfc' monophones1

but i have a big problem :
RROR [+2319] HERest: output TMF file expected
FATAL ERROR - Terminating program HERest

my config.global file contain these elements :

HADAPT:TRANSKIND = MLLRMEAN
HADAPT:USEBIAS = TRUE
HADAPT:BASECLASS = global
HADAPT:ADAPTKIND = BASE
HADAPT:KEEPXFORMDISTINCT = TRUE

HADAPT:TRACE = 61
HMODEL:TRACE = 512

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By nemozny - 8/31/2011 - 3 Replies

This command "HHEd -H macros -H hmmdefs -M hmm16 regtree.hed tiedlist" does not create hmm16/hmmdefs and hmm16/macros. Only rtree.base and rtree.tree.

HEAdapt does not exist in HTK 3.4.1.

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