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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 GuoAbstract— 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.
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Journal
IEEE-ACM transactions on audio speech and language processingVolume
23Issue
12Pagination
2228 - 2237Publisher
IEEELocation
Piscataway, NJPublisher DOI
ISSN
2329-9290Language
engPublication classification
C Journal article; C1 Refereed article in a scholarly journalCopyright notice
2015, IEEEUsage metrics
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