How to use trained nnet3 model to do force alignment

[Jackie]

Dear everyone,

              Nowadays, I tried to use a trained nnet3 model to do force alignment, the script I used named align.sh under folder steps/nnet3.

              But there is an error "Neural net expects 'ivector' features with dimension 100 but you provided 0 ", could someone give me some suggestions about what caused this error or how to solve it? 

              Thank you very much in advance!

[Astik Biswas]

Hello,

You need to provide 100-dimensional ivector while doing forced alignment. Your neural network was trained with  ivectors along with acoustic features. Hence it is expecting 100-dimensional i-vector while you are trying to use it for forced alignments.

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[Jackie]

Hi Astik,

   

       Thank you very much for your help! I know what you mean, and that's what puzzled me. 

       I prepared an ivecrtor_extract config file for the ivector extractor, according to the error message, it looks like that the ivector feature didn't be extracted, but I don't know why.

在 2019年4月4日星期四 UTC+2上午10:56:20，Astik Biswas写道：

Hello,

You need to provide 100-dimensional ivector while doing forced alignment. Your neural network was trained with  ivectors along with acoustic features. Hence it is expecting 100-dimensional i-vector while you are trying to use it for forced alignments.

On Thu, Apr 4, 2019 at 9:58 AM Jackie <wx19...@gmail.com> wrote:

Dear everyone,

              Nowadays, I tried to use a trained nnet3 model to do force alignment, the script I used named align.sh under folder steps/nnet3.

              But there is an error "Neural net expects 'ivector' features with dimension 100 but you provided 0 ", could someone give me some suggestions about what caused this error or how to solve it? 

              Thank you very much in advance!

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