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Pitch shift resistant audio matching

  • US 9,052,986 B1
  • Filed: 04/18/2012
  • Issued: 06/09/2015
  • Est. Priority Date: 04/18/2012
  • Status: Active Grant
First Claim
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1. A system comprising:

  • a memory that has stored thereon computer executable components; and

    a processor that executes the following computer executable components stored in the memory;

    an input component that receives a video sample;

    a fingerprint component that generates a melody fingerprint and an audio-id fingerprint based on an audio track of the video sample;

    a melody matching component that identifies a set of potential audio matches for the audio track based on comparing the melody fingerprint to reference melody fingerprints for the potential audio matches of the set;

    an audio-id matching component that identifies reference audio-id fingerprints respectively associated with the potential audio matches of the set;

    a pitch shift evaluation component that determines an estimated amount of pitch shift between the audio track and the reference audio-id fingerprints; and

    a pitch variation component that generates sets of pitch modified fingerprints for each of the reference audio-id fingerprints based on the estimated amount of pitch shift,wherein the audio-id matching component identifies a subset of the set of the potential audio matches based on comparing the audio-id fingerprint to the reference audio-id fingerprints and the sets of the pitch modified fingerprints.

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