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Non-speech section detecting method and non-speech section detecting device

  • US 8,798,991 B2
  • Filed: 11/13/2012
  • Issued: 08/05/2014
  • Est. Priority Date: 12/18/2007
  • Status: Active Grant
First Claim
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1. A non-speech section detecting device generating a plurality of frames having a given time length on the basis of sound data obtained by sampling sound, and detecting a non-speech section having a frame not including voice data based on speech uttered by a person, the device comprising:

  • a first calculating part configured to calculate, for each frame of the plurality of frames, a value, wherein the value is one of a power of sound data, a pitch of sound data, or a bias of a spectrum obtained by converting sound data into components on a frequency axis;

    a second calculating part configured to calculate, for a pair of consecutive frames, a variation between the calculated values calculated for the frames in the pair and configured to judge whether the calculated variation is smaller than or equal to a given threshold, and performing, for each pair of consecutive frames in the plurality of frames, the calculating of a variation and the judging;

    a counting part configured to count a number of variations judged as smaller than or equal to the threshold;

    a count judging part configured to judge whether the counted number is greater than or equal to a given value; and

    a detecting part configured to detect, when the counted number is judged as greater than or equal to the given value, a section of the sound data as a non-speech section.

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