[hts-users:00045] Re: hts_engine binary format

[Heiga Zen / Byung-Ha Chun <zen@xxxxxxxxxxxxxxxx>]

Hello Matthew, 

On Thu, 20 May 2004 11:30:49 -0400 (EDT)
Matthew Lee <mattlee@xxxxxxxxxxxxxx> wrote:

> I have a question concerning the HTS demo script.   
> There is a section labelled, "convert HTK macro model file format into hts_engine model binary format."
> This is performed using HHEd with the script commands LT, CT, and CM.  
> I am trying to implement a model without tree clustering, but I cannot get this conversion script to work.  
> I have tried just using the CM command with HHEd, but I get errors saying that no trees have been loaded.

Sorry, current hts_engine assumes decision-tree stream clustered HMMs.
However, if you want to use monophone HMMs for your acoustic model, 
I think you can convert monophone HMMs into hts_engine format by using following procedure:

0. Train monophone HMMs
1. Prepare questions about current phoneme.
2. Set variables $mdl{mcep}, $mdl{logF0}, and $mdl{duration} in training script to "".
   It means that trees grow untill no question improves model likelihood.  
3. Construct trees and cluster HMM streams.
4. Embedded training
5. Convert HMMs into hts_engine acoustic model format by using HHEd with the script command LT, CT and CM.
   
Best regards,

Heiga Zen / Byung-Ha Chun

-- 
 ------------------------------------------------
  Heiga Zen     (in Japanese pronunciation)
  Byung-Ha Chun (in Korean pronunciation)

  Department of Computer Science and Engineering
  Graduate School of Engineering
  Nagoya Institute of Technology
  Japan

  e-mail: zen@xxxxxxxxxxxxxxxx
     web: http://kt-lab.ics.nitech.ac.jp/~zen
 ------------------------------------------------