Step 4 - Coding the Data

Create Codetrain.scp

1. Create a new directory called 'mfcc' in your 'voxforge/test' folder.

2. Create a codetrain.scp script in your 'voxforge/test' folder containing the following information:

codetrain.scp

This is an HTK a file containing a list of each audio file you created and the name and location of the MFCC file (special HTK audio format) it will be converted to.  See Step 5 of the Tutorial for further details.

Config file

3. Create a file called wav_config in your 'voxforge/test' folder and add the following:

SOURCEFORMAT = WAV TARGETKIND = MFCC_0_D TARGETRATE = 100000.0 SAVECOMPRESSED = T SAVEWITHCRC = T WINDOWSIZE = 250000.0 USEHAMMING = T PREEMCOEF = 0.97 NUMCHANS = 26 CEPLIFTER = 22 NUMCEPS = 12

Command

4. Then execute the HTK HCopy command from your 'voxforge/adapt' directory as follows:

$HCopy -A -D -T 1 -C wav_config -S codetrain.scp

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Comments

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By colbec - 3/4/2008

Should that be 'voxforge/test' and not 'voxforge/adapt' in step 4?

The way I came at the tutorial by the time I reached this stage I did not have an adapt directory. I substituted test directory and it worked fine.

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