[hts-users:01603] Re: GV causes clipping

["Heiga ZEN (Byung Ha CHUN)" <zen@xxxxxxxxxxxxxxx>]

Hi,

Leon Zhang wrote (2008/07/31 7:32):

> I am interesting at the voice quality improvement by GV, 
> who can tell me your observation? I am using lsp to build HTS system, 
> is GV able to improve voice quality too?

GV is effective for LSPs, but usually its improvement is relatively smaller than 
 that with mel-cepstral coefficients.  Furthermore, the use of GV with LSPs 
sometimes causes disorders of LSPs, it means that the synthesis filter becomes 
unstable.  Rearranging LSPs by post-processing can avoid it, but it introduces 
artifacts in synthesized speech.

Best regards,

Heiga ZEN (Byung Ha CHUN)

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 Heiga ZEN     (in Japanese pronunciation)
 Byung Ha CHUN (in Korean pronunciation)
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