Robust Audio Watermarking Based on Extended Improved Spread Spectrum with Perceptual Masking

10.30000/IJFS.201206.0013

Peng Zhang；Shu-Zheng Xu；Hua-Zhong Yang

Audio watermarking ； Perceptual masking ； Spread spectrum ； Improved spread spectrum

International Journal of Fuzzy Systems

14卷2期（2012 / 06 / 01）

289 - 295

英文

In spread spectrum (SS) based watermarking, the watermark sequence is often shaped by using a hostdependent perceptual model and can not be accurately recovered at the receiver, resulting in watermark decoding with unmatched filtering, where the reference sequence at the watermark decoder does not match with the embedded sequence. In this paper, the improved SS (ISS) modulation is extended to cancel the host interference in this context. Then a robust and high-fidelity audio watermarking scheme based on the extended ISS with a psychoacoustic model is proposed. Experimental results show that the proposed scheme is robust against most of the common attacks while preserving high audio quality.