[hts-users:00373] Re: Questions about the latest released HTS

["Heng Lu" <luhenglh@xxxxxxxxxxxxxxxx>]

thanks! 

ÔÚÄúµÄÀ´ÐÅÖÐÔø¾­Ìáµ½:
>From: "Heiga ZEN (Byung Ha CHUN)" <zen@xxxxxxxxxxxxxxxx>
>Reply-To: hts-users@xxxxxxxxxxxxxxxxxxxxxxxxx
>To: hts-users@xxxxxxxxxxxxxxxxxxxxxxxxx
>Subject: [hts-users:00372] Re: Questions about the latest released HTS
>Date:Thu, 13 Jul 2006 11:33:55 +0900
>
>Hi
> 
> Heng Lu wrote:
> 
> > Question 1:
> > I have used both HTS2.0-RC1 and HTS2.0-RC2 to synthesize Chinese sentences,
and
> > have found that although there may be lots of improvements and fixs in the
code of
> > RC2 , the quality of the synthesized sentences using RC2 remains nearly the
same
> > as the sentences from RC1. Is there anything wrong ? 
> 
> Modifications made in RC2 are mainly bug fixes (segmentation fault, memory
leaks, etc).
> Two critical bugs in RC1 were voiced/unvoiced handling and EM-based parameter
generation in HMGenS.
> First one affects only on voiced/unvoiced boundaries, so its effect may be
small.
> Another one affects entire speech but I have found that its effect has been
small too.
> 
> > Another question: 
> > Compared with the synthesizing without EM algorithm(HMGens c 0) , synthesizing

> > with EM(HMGens c 1) seems to make the quality of the synthesized speech
decrease .
> > And I am really puzzled about it .
> 
> This algorithm iteratively maximizes the output probability with respect to the
speech parameter sequence via the EM algorithm. 
> As you know, increasing the output probability does not guarantee improving the
speech quality.
> However, in Dr. Tokuda's ICASSP 2000 paper, improvements were reported.
> So now I'm wondering if the current implementation still contains some bugs
(therefore it is still a Release Candidate). 
> Everyone, please look at it and help me to find bugs in the current release!!
> 
> Regards,
> 
> Heiga Zen (Byung Ha Chun)
> 
> -- 
> ------------------------------------------------
>  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://kt-lab.ics.nitech.ac.jp/~zen
> ------------------------------------------------
> 
>