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Frame/Window Size | Feature Extraction

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2015-07-06
2015-07-06
  • Daniel Douglas

    Daniel Douglas - 2015-07-06

    What is the frame/window size used in KALDI when computing the feature vectors? Is this a static parameter?

    Is there a way to view the mapping of of each phone temporally (i.e., this frame was mapped to this phone)?

    -Daniel

     
    • Daniel Povey

      Daniel Povey - 2015-07-06

      The shift is 10 ms and the window size is 250 ms by default. These
      are parameters to compute-mfcc-feats and similar programs.
      If you have alignments, the programs show-alignments and ali-to-phones
      may be useful for visualization.
      Dan

      On Mon, Jul 6, 2015 at 10:25 AM, Daniel Douglas daniel-tee@users.sf.net wrote:

      What is the frame/window size used in KALDI when computing the feature
      vectors? Is this a static parameter?

      Is there a way to view the mapping of of each phone temporally (i.e., this
      frame was mapped to this phone)?

      -Daniel


      Frame/Window Size | Feature Extraction


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