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Digital Watermarking of Audio Signals Using a Psychoacoustic Auditory Model and Spread Spectrum Theory

A new algorithm for embedding a digital watermark into an audio signal is proposed. It uses spread spectrum theory to generate a watermark resistant to different removal attempts, and a psychoacoustic auditory model to shape and embed the watermark into the audio signal while retaining the signal's perceptual quality. Recovery is performed without knowledge of the original audio signal. A software system is implemented and tested for perceptual transparency and data-recovery performance.

Author: Garcia, Ricardo A.
Affiliation: School of Music Engineering Technology, University of Miami, Coral Gables, FL
AES Convention:107 (September 1999) Paper Number:5073 Import into BibTeX
Subject:Audio coding / HRTFs, HRIRs, and Spatialization

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