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Spread spectrum-based high embedding capacity watermarking method for audio signals

journal contribution
posted on 2015-12-01, 00:00 authored by Yong XiangYong Xiang, Iynkaran NatgunanathanIynkaran Natgunanathan, Y Rong, S Guo
Abstract— Audio watermarking is a promising technology for copyright protection of audio data. Built upon the concept of spread spectrum (SS), many SS-based audio watermarking method shave been developed, where a pseudonoise (PN) sequence is usually used to introduce security. A major drawback of the existing SS-based audio watermarking methods is their low embedding capacity. In this paper, we propose a new SS-based audio watermarking method which possesses much higher embedding capacity while ensuring satisfactory imperceptibility and robustness. The high embedding capacity is achieved through a set of mechanisms: embedding multiple watermark bits in one audio segment, reducing host signal interference on watermark extraction, and adaptively adjusting PN sequence amplitude in watermark embedding based on the property of audio segments. The effectiveness of the proposed audio watermarking method is demonstrated by simulation examples.

History

Journal

IEEE-ACM transactions on audio speech and language processing

Volume

23

Issue

12

Pagination

2228 - 2237

Publisher

IEEE

Location

Piscataway, NJ

ISSN

2329-9290

Language

eng

Publication classification

C Journal article; C1 Refereed article in a scholarly journal

Copyright notice

2015, IEEE