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Acoustic fingerprinting

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Definition Edit

Acoustical fingerprinting

analyzes the actual content of an audio file, as opposed to a written description of what is contained within it (e.g., 'metadata'). This means that the filtering tool 'listens' to the sound recording, and creates a twenty-second 'fingerprint' that can then be compared against any other file that an end-user is attempting to upload or download. If the suspected file has that precise sequence (or spectrum) of sounds, the uploading or downloading of the song will be blocked.[1]

References Edit

  1. Metro-Goldwyn-Mayer Studios, Inc. v. Grokster, Ltd., 518 F.Supp.2d 1197, 1205 (C.D. Cal. 2007) (full-text) (citations omitted).

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