Hi,
Thanks very much for the reply. I've checked the ML archive and tried with Simon's method. However, there is still 2 points I doubts.
1. The equivalence of the re-estimated transition matrices comparing with duration models, while it performs in the viterbi state alignment.
2. How to only update transition matrices with HTS modified HERest? Seems it needs duration models to compute with composite HMM models. And the updated transition matrices are not updated from training data instead of a dummy one. Is there any trigger to turn off the duration model computation and back to normal HMM update computation in HERest with HTS-2.1 or any other old version?
ThanksHi,
vancy wrote (2008/07/04 19:33):Currently HTS doesn't include any tools to perform Viterbi alignment with HSMMs. Internally we have a WFST-based decoder for HSMMs. But it's not open. Simon King has shown an approximate solution for this problem. Please refer to hts-users:01140-01143 for details. You can find them in hts-users ML archive (http://hts.sp.nitech.ac.jp/hts-users/spool/2008/threads.html).
I want evaluate the performance and impact of HSMM duration, so I want to do a state alignment from handed label, real pitch and cesptrum data extracted from database, and then generated pitch and cepstral parameter with this state alignment. Could this be done by HMGenS or with any other helps?
Once state-level alignment is obtained, you can generate cepstrum and F0 parameters with this state alignment using HMGenS with -s option.
Best regards,
Heiga ZEN (Byung Ha CHUN)
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Heiga ZEN (in Japanese pronunciation)
Byung Ha CHUN (in Korean pronunciation)
Department of Computer Science and Engineering
Nagoya Institute of Technology
Gokiso-cho, Showa-ku, Nagoya 466-8555 Japan
http://www.sp.nitech.ac.jp/~zen
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