[hts-users:01722] Re: 8khz TTS

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

Hi,

Cenk Demiroglu wrote (2008/09/26 4:43):

> I have been trying to generate 8khz speech using alpha=0.32 and
> the 25 MCEP coefficients. Output speech sounds very muffled. The
> quality is not really acceptable compared to 16khz speech.
>  
> I know
> that there should be some degradation when we go from 16 to 8 khz
> sampling rate but the difference seems to be huge.
>  
> Am I doing something wrong? Are there other changes I should make
> besides changing the alpha parameter? Is this a known issue with hts?

I think you should reduce the order of mel-cepstral analysis.
24-order mel-cepstral analysis sounds too high for 8kHz sampling.

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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