[hts-users:02039] Re: Problem Feature Extraction

[Keiichi Tokuda <tokuda@xxxxxxxxxxxx>]

This can happen when all samples in an input frame have the
value of zero, and can be avoided by setting a small number to
-e option in the command line of mgcep.

Regards,
Keiichi

From: wangxiang <wangxiang68@xxxxxxxxx>
Subject: [hts-users:02038] Re: Problem Feature Extraction
Date: Tue, 23 Jun 2009 01:20:15 +0800
Message-ID: <64a692590906221020k6af36059sf646cdbb9aec8643@xxxxxxxxxxxxxx>

> I read the code of SPTK and find when the theq() condition is not true, the
> mgcep exits.
> 
> I just wonder why some wave can't apply the theq condition?
> 
> When I listen to these waves, they seem to be normal ! Can anyone give me
> some paper about this theory?
> 
> 2009/6/22 wangxiang <wangxiang68@xxxxxxxxx>
> 
> > Then it stops when error, and the units is not complete.
> > So can you give me some suggestion to solve it ?
> > Thanks!
> >
> > 2009/6/22 Geoffrey Wilfart <geoffrey.wilfart@xxxxxxxxx>
> >
> > Hi,
> >> It will be harmful, since the feature extraction stops when the error
> >> raises. This means that you have incomplete features (and later cmp) files.
> >> You might then get not enough or no data for some units.
> >> Regards,
> >> Geoffrey
> >>
> >> 2009/6/22 wangxiang <wangxiang68@xxxxxxxxx>
> >>
> >>   MGCORDER=12 MGCLSP=1 GAMMA=3 FREQWARP=0.42 LNGAIN=1
> >>> >
> >>> While extracting using mgc-lsp
> >>>
> >>> > Extracting MGC-LSP coefficients from raw/cmu_us_arctic_slt_a0289.raw
> >>> > mgcep : Error in theq() at 0th iteration!
> >>> > Extracting MGC-LSP coefficients from raw/cmu_us_arctic_slt_a0290.raw
> >>> > Extracting MGC-LSP coefficients from raw/cmu_us_arctic_slt_a0291.raw
> >>> > Extracting MGC-LSP coefficients from raw/cmu_us_arctic_slt_a0292.raw
> >>> > mgcep : Error in theq() at 0th iteration!
> >>> > Extracting MGC-LSP coefficients from raw/cmu_us_arctic_slt_a0293.raw
> >>> > Extracting MGC-LSP coefficients from raw/cmu_us_arctic_slt_a0294.raw
> >>> >
> >>> > Does anybody tell me what happened? Is there any harmful for following
> >>> > training?
> >>>
> >>> It means that determinant of Toeplitz+Hankel matrix, which is a
> >>> coefficient matrix of a linear system in MGC analysis, is too small (<
> >>> 1.0e-6).
> >>> You can modify this threshold via -f option as a smaller threshold
> >>>
> >>> Does anyone know the reason for this warning  and  Is it harmful to the
> >>> model training?
> >>>
> >>> Thanks!
> >>>
> >>> --
> >>> Xiang Wang
> >>>
> >>>
> >>
> >
> >
> > --
> > Xiang Wang
> > Institue Of Acoustics, CAS
> >
> >
> 
> 
> -- 
> Xiang Wang
> Institue Of Acoustics, CAS