dimenstion error

[Yu Beomgon]

I trained voxforge.

then I want to test with my audio using trained model.

I got a help from this blog

http://jrmeyer.github.io/asr/2016/09/12/Using-built-GMM-model-Kaldi.html

but dimension error happend.

trying to find, but difficult.

can anybody help me?

thanks

beomgon@beomgon-ThinkStation-P520:~/kaldi/egs/voxforge/s5$ ./test_run.sh

compute-mfcc-feats --write-utt2dur=ark,t:exp/make_mfcc/test/utt2dur.1 --verbose=2 --config=conf/mfcc.conf scp:transcriptions/test.scp ark,scp:transcriptions/feats.ark,transcriptions/feats.scp

VLOG[2] (compute-mfcc-feats[5.5.413~1-c4490]:main():compute-mfcc-feats.cc:182) Processed features for key JonnyGutteridge-20081120-hav-b0041

VLOG[2] (compute-mfcc-feats[5.5.413~1-c4490]:main():compute-mfcc-feats.cc:182) Processed features for key JonnyGutteridge-20081120-hav-b0042

LOG (compute-mfcc-feats[5.5.413~1-c4490]:main():compute-mfcc-feats.cc:185)  Done 2 out of 2 utterances.

add-deltas scp:transcriptions/feats.scp ark:transcriptions/delta-feats.ark

gmm-latgen-faster --word-symbol-table=exp/tri3b/graph/words.txt exp/tri3b/final.mdl exp/tri3b/graph/HCLG.fst ark:transcriptions/delta-feats.ark ark,t:transcriptions/lattices.ark

ERROR (gmm-latgen-faster[5.5.413~1-c4490]:LogLikelihoodZeroBased():decodable-am-diag-gmm.cc:50) Dim mismatch: data dim = 39 vs. model dim = 40

[ Stack-Trace: ]

/home/beomgon/kaldi/src/lib/libkaldi-base.so(kaldi::MessageLogger::LogMessage() const+0xb42) [0x7f00383c8692]

[Rudolf A. Braun]

There is a mismatch between the features you extracted and the features your model was trained with. Check that you used the same mfcc.conf for both.

[Daniel Povey]

Looks to me like it might be about delta+delta-delta features vs. LDA+MLLT. 

What I would do is start from the decoding script that the voxforge example is using, going to decode.1.log or whatever and starting with that command, and then going back to the step that created the CMVN stats and then back to the one that created the MFCC features.
Dan

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