Mixed Watermarking-Fingerprinting Approach for Integrity Verification of Audio Recordings

Emilia Gómez, Pedro Cano, Leandro de C. T. Gomes, Eloi Batlle, Madeleine Bonnet

DOI: 10.14209/its.2002.303

Evento: 2002 International Telecommunications Symposium (ITS2002)

Keywords:

Abstract

"We introduce a method for audio-integrity verification based on a combination of watermarking and fingerprinting. The fingerprint is a sequence of symbols (“audio descriptor units”) that enables one to identify an audio signal Integrity verification is performed by embedding the fingerprint into the audio signal itself by means of a watermark. The original fingerprint is reconstructed from the watermark and compared with a new fingerprint extracted from the watermarked signal If they are identical, the signal has not been modified; if not, the system is able to determine the approximate locations where the signal has been corrupted."

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