warning while generating word alignments about kaldi-gstreamer-server HOT 3 OPEN

Yes, this issue is known:
alumae/gst-kaldi-nnet2-online#22

I don't know currently how to fix it.

On Wed, Sep 23, 2015 at 9:27 AM, rohithkodali [email protected]
wrote:

Hi,

i'm getting an error when i try to get the word alignments, it is not
happening always, it throws a warning and it doesn't provide the word
alignment for that particular segment and for the other segments it works
fine,

here is the warning

Lattice has input epsiilons and/or non-deterministic (in mohri's sense)
--i.e., lattice is not deterministic. Word alignment may be slow and/or
blow up ,memory

when i decode the same file with sgmm based models (offline approach) it
dint throw any error and provide all word-alignments perfectly.
what is the possible cause for the error and how to solve it?

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#29.

from kaldi-gstreamer-server.

I found this was an issue in nnet2 when the utterance was longer than 20s so kaldi split it -- all intermediate utterances did not get word alignments. We couldn't reproduce this when we enabled nnet3 + chain.

from kaldi-gstreamer-server.

Can we reduce the utterance duration to 10s and then split it?
or split it with silence?

from kaldi-gstreamer-server.