VoxForge
Re: error on recognition by Julius
>After having hmm12 diretory I decided to test with julius to recognize
>the against some test files.
I've never tried this... I have tried against the hmm9 directory from Step 8 (monophone acoustic models), and hmm15 directory hmms from Step 10, and had no problems (though the hmm9 models were not that accurate...)
>### Recognition: 1st pass (LR beam with word-pair grammar)
>Error: 428th frame: no nodes left in beam! model mismatch or wrong
>input?
have you tried modifying the beam width parameters in Julius:
-b beamwidth
Beam width (number of HMM nodes) on the first pass. This
value
defines search width on the 1st pass, and has great
effect on
the total processing time. Smaller width will
speed up the
decoding, but too small value will
result in a substantial
increase of recognition errors due to search
failure. Larger
value will make the search stable and will lead to failure-free
search, but processing time and memory usage will grow in
pro-
portion to the width.
Default value is acoustic model dependent:
400 (monophone)
800 (triphone,PTM)
1000 (triphone,PTM, setup=v2.1)
Or why not just finish the acoustic model training and use tied-state triphones?