[Freeswitch-users] pocketsphinx

[Helmut Kuper]

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Hello,

I spent a few days working on my problem. I played around with
voxforge's data, read some of the train docs of CMU, and debugged the
sphinxbase, pocketsphinx and mod_pocketsphinx.

Results:
- -I found a way to use the voxforge data as training data for creation of
a german language corpus.

- -I enabled the logging of pocketsphinx to stderr (Dirty, but easy way to
see what went wrong when FS loads grammar, mdef, etc and simply stopped.
Very helpful!

- -I had to add a "dictcase" parameter to pocketsphinx.conf.xml resp
mod_pocketsphinx.c to allow case sensitive dictionaries (like the german
dictionary from voxforge).


FS starts up with german language model and detects the words as
expected. But it's not so reliable as I want to ... I guess this is
caused by the very small amount of training audio data. I used 4000 of
19000 audio files provided by voxforge due to the reason that voyforge's
training fileid-list contains only 4000 files ...  I have to create new
fileid-list and transcription-lists containing all audio I have
downloaded from voxforge.


Quite complex the whole thing ...

regards
helmut



On 10.07.2009 14:53, Helmut Kuper wrote:
> Hi,
> 
> I try to change pocketsphinx's grammar from default (english) to german.
> I found this archive
> (http://www.repository.voxforge1.org/downloads/de/Trunk/AcousticModels/), which
> contains similar files like those which can be found in
> grammar/model/communicator directory.
> 
> Unfortunately FS crashed without writing a core file nor logfile enries
> as soon as as pizza demo trys to detect speech.
> 
> Any Ideas? Maybe someone has already working grammar/model files for
> german language?
> 
> 
> regards
> helmut
> 
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