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Fast playback in media files with reduced impact to speech quality

  • US 10,629,223 B2
  • Filed: 05/31/2017
  • Issued: 04/21/2020
  • Est. Priority Date: 05/31/2017
  • Status: Active Grant
First Claim
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1. A computer processing system for increasing the playback speed of audio files, comprising:

  • a computer processor having a non-transitory memory containing program code for;

    analyzing an audio wave;

    calculating a first silent section in the audio wave;

    wherein the first silent section has a length greater than a minimum short pause length required to distinguish between words;

    calculating a new playback speed of the first silent section so that a total playback time for the first silent section is equal to the minimum short pause length;

    detecting a second silent section after one or more first silent sections;

    wherein the second silent section has a length greater than a minimum long pause length required to distinguish between sentences;

    calculating a new playback speed of the second silent section so that a total playback time for the second silent section is equal to the minimum long pause length; and

    adjusting an original playback speed of the second silent sections with respect to the first silent sections, such that the second silent sections are double the length of the first silent sections.

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