[hts-users:00178] Re: adding new language

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

Hi,

Tomas Sykora wrote:

> cmp files are generated from the mcep, f0 and header files by the
> delta.pl, x2x and merge scripts.
>
> the way how I've generated the f0 files was via make_f0 and afterwards
> converted from double to float format via x2x +df.
>
> If I understand it correctly, the only problem with the cmp files could be
> in f0 and mcep files.
>
> How can I check if the f0 files were generated correctly.
> Or what is the way how to generate good cmp files?

You can check inside of the cmp files using "HList" command in HTS.
If you are using the default setting, 1 -- 75-th dimensions of each frame of cmp files are corresponding to 
mcep+delta+delta^2, and 76 -- 78-th dimensions are corresponding to log(f0)+delta+delta^2.
Usually, mel-cepstral coefficients range from -10 to +10.
You can check its range using "minmax" command in the SPTK.
In unvoiced region, log(f0) and its delta and delta^2 values must be -1.0e+10 (LZERO in HTK).
And at voiced/unvoiced boundaries, delta & delta^2 values must be -1.0e+10.
It is worth noting that sometimes this problem is caused from the difference between frame lengths of mcep and f0.

I hope the above comments help you to solve your problem.

Regards,

Heiga Zen (Byung Ha CHUN)