Open AccessA Novel Audio Watermarking Algorithm for Copyright Protection of Digital Audio
Author(s) -
Seok Jongwon,
Hong Jinwoo,
Kim Jinwoong
Publication year - 2002
Publication title -
etri journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.295
H-Index - 46
eISSN - 2233-7326
pISSN - 1225-6463
DOI - 10.4218/etrij.02.0102.0301
Subject(s) - digital watermarking , watermark , digital audio , computer science , audio signal , copying , sound quality , digital watermarking alliance , audio signal processing , scheme (mathematics) , anti aliasing , distortion (music) , speech recognition , embedding , algorithm , computer vision , speech coding , artificial intelligence , bandwidth (computing) , mathematics , image (mathematics) , telecommunications , mathematical analysis , amplifier , political science , law
Digital watermark technology is now drawing attention as a new method of protecting digital content from unauthorized copying. This paper presents a novel audio watermarking algorithm to protect against unauthorized copying of digital audio. The proposed watermarking scheme includes a psychoacoustic model of MPEG audio coding to ensure that the watermarking does not affect the quality of the original sound. After embedding the watermark, our scheme extracts copyright information without access to the original signal by using a whitening procedure for linear prediction filtering before correlation. Experimental results show that our watermarking scheme is robust against common signal processing attacks and it introduces no audible distortion after watermark insertion.