[Kaldi-users] LibriSpeech DNN forced alignments

[Mate A. <ele...@gm...>]

My goal is to find alignments for the 960-hour LibriSpeech dataset. I am
using the nnet2_online/nnet_a
<http://kaldi-asr.org/downloads/build/6/trunk/egs/librispeech/s5/exp/nnet2_online/nnet_a/>
LibriSpeech
model from the Kaldi-ASR <http://kaldi-asr.org/> site, and I am running the
steps/nnet2/align.sh script in Kaldi's LibriSpeech folder using the
following command:

steps/nnet2/align.sh --nj 10 --cmd 'run.pl' data/train_960 data/lang_nosp
exp/nnet2_online/nnet_a exp/nnet2_online/nnet_a_ali

where *exp/nnet2_online/nnet_a *contains the files in nnet2_online/nnet_a
<http://kaldi-asr.org/downloads/build/6/trunk/egs/librispeech/s5/exp/nnet2_online/nnet_a/>
and
*exp/nnet2_online/nnet_a_ali *is an empty directory.

I'm getting the following error in the log files:

ERROR (nnet-align-compiled:NnetComputer():nnet-compute.cc:70) Feature
dimension is 13 but network expects 140

Am I using the correct script to generate the alignments, or is there
another reason I am getting this error?