Re: [Kaldi-developers] online/sandbox errors

[Simon K. <sim...@gm...>]

Hi,

I am experiencing yet another problem using the online decoder from the 
sandbox. I am using revision 3940.

Everything up to the decoding stage works fine, and here it seems to 
throw segfaults rather randomly. while I managed to have a successful 
decoding run (see output attached), in most cases it just dies at some 
point.

I attached the valgrind output. It shows once again 'Conditional jump or 
move depends on uninitialised value(s)', but now in the end also states 
that "the 'impossible' happened".

I am not sure if there is another bug in the code, or if my system might 
be faulty.

I am using MFCCs without transforms.

Thanks,

Simon


On 04/14/2014 09:15 PM, Daniel Povey wrote:
>
> Oh-- I see.  I fixed it, thanks.
> Dan
>
>
>
> On Mon, Apr 14, 2014 at 4:57 PM, Simon Klüpfel <sim...@gm...
> <mailto:sim...@gm...>> wrote:
>
>     Hi Dan,
>
>     did you also have a look at the valgrind output? This is a different
>     issue, I believe.
>
>     However, I am not sure if this is a bug in the C++ code, or a
>     problem with my data or setup.
>
>     I had used the higher frequency for both training and testing
>
>     All the best,
>
>     Simon
>
>
>     On 04/14/2014 07:21 PM, Daniel Povey wrote:
>
>         Thanks for the bug report-- fixed it.
>         Regarding setting --sample-frequency=41000 in conf/mfcc.conf,
>         this is OK
>         as long as you do so in both train and test conditions, since
>         features
>         (as you probably know) are not comparable across different sample
>         frequencies.
>         Dan
>
>
>
>         On Mon, Apr 14, 2014 at 8:49 AM, Simon Klüpfel
>         <sim...@gm... <mailto:sim...@gm...>
>         <mailto:simon.kluepfel@gmail.__com
>         <mailto:sim...@gm...>>> wrote:
>
>              Hi,
>
>              there is a small bug in the prepare_online_decoding.sh
>         script, I
>              attached the diff.
>
>              I also experience a segfault. I am not sure if this is due
>         to the
>              data I am using, or a bug. I attached the output of the
>         command, as
>              well as the valgrind output reporting use of several
>         uninitialized
>              values.
>
>              My recordings are 441kHz, so I added
>              --sample-frequency=44100
>              to conf/mfcc.conf before running run_online_decoding.sh
>
>              Please tell me if you need any more info on my setup or
>         anything else.
>
>              Simon
>
>
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