Re: [Kaldi-users] LibriSpeech DNN forced alignments

[Daniel P. <dp...@gm...>]

You need to point it to the nnet_a_online directory instead.
Dan


On Fri, Jun 26, 2015 at 4:59 PM, Mate Andre <ele...@gm...> wrote:
> Thanks for the prompt reply.
>
> When using steps/online/nnet2/align.sh, I get the following error: "no such
> file exp/nnet2_online/nnet_a/conf/online_nnet2_decoding.conf". Do I need to
> generate "online_nnet2_decoding.conf" and the "conf" directory with another
> script, since they aren't included in the Kaldi-ASR build?
>
> On Fri, Jun 26, 2015 at 4:44 PM, Daniel Povey <dp...@gm...> wrote:
>>
>> It expects 140 because 140 = 40 + 100, the 40 is the "hires" MFCC
>> features (the Librispeech scripts create these from the wav data), and
>> the 100 is the iVector features.  You would have to get these from the
>> iVector extractor.
>> However, you may find your life is easier if you use
>> steps/online/nnet2/align.sh, that will start from the wav data and do
>> the feature extraction itself.
>> Dan
>>
>>
>> On Fri, Jun 26, 2015 at 4:41 PM, Mate Andre <ele...@gm...> wrote:
>> > My goal is to find alignments for the 960-hour LibriSpeech dataset. I am
>> > using the nnet2_online/nnet_a LibriSpeech model from the Kaldi-ASR 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
>> > 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?
>> >
>> >
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>