Different WER: Sphinxtrain and sphinx-4

[Anonymous]

Good evening,

I am implementing an ASR System for Spanish language using Sphinx-4. I
implemented the frontend, the language model, the dictionary and the acoustic
model. I tested it with sphinx-3 (perl scripts_pl/decode/slave.pl) and i got
WER=5.4%. After, i tested my Sphinx-4 system (i changed the tidigits
performance test to adapt it to my files) and i got WER=21.8%. I used the same
test data for the test, and i expected similar WER but they are very
different.

I uploaded the test folder, the .wav and etc files at the following link:

http://rapidshare.com/files/411114016/Consulta.rar

Thank you very much.

Fidelia

[Nickolay V. Shmyrev]

Hello Fidelia

After some poking I finally found the reason:

Your pipeline was:

 <item>featureExtractor</item>

But later

        <component name="featureExtraction"
                type="edu.cmu.sphinx.frontend.feature.DeltasFeatureExtractor" />

See the difference between featureExtraction vs featureExtractor. Once you'll
fix the name accuracy will be way better. I will fix the sphinx4 so such error
will be way easier to detect. I wanted to do that long time ago.

[Anonymous]

Hello Nickolay,

I can solve the problem with your help, I really appreciate it. Thank you very
much.

Fidelia