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http://dx.doi.org/10.7776/ASK.2013.32.1.064

Adaptive Watermarking for MP3 Copyright Protections Using Psychological Acoustics  

Lee, Kyeong-Hwan (Department of Cyber Security & Police, Uiduk University)
Publication Information
The Journal of the Acoustical Society of Korea / v.32, no.1, 2013 , pp. 64-70 More about this Journal
Abstract
In this paper, we suggest a new audio watermarking method for audio contents copyrights that can efficiently provide protection from MP3 compression attacks. Watermarks were inserted at the coefficients repeatedly from low frequencies to high frequencies after DCT transform in commonly used Cox's spread spectrum method. Because the methods using arbitrary coefficients are not effective, we use the new weight functions that make small losses for the watermark coefficients during attacks, using psychological acoustics. In the results of various sound clips, the suggested method had overall better outcomes than the Cox's method by preserving watermarks and reducing distortions of the original sounds.
Keywords
Watermarking; Psychological acoustics; Copyrights; MP3; DCT;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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