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Non-Blind Speech Watermarking Method Based on Spread-Spectrum Using Linear Prediction Residue
Reiya NAMIKAWA Masashi UNOKI
IEICE TRANSACTIONS on Information and Systems
Publication Date: 2020/01/01
Online ISSN: 1745-1361
Type of Manuscript: Special Section LETTER (Special Section on Enriched Multimedia — Application of Multimedia Technology and Its Security —)
speech watermarking, spectrum spreading, linear prediction residue, pseudo-random noise signal,
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We propose a method of non-blind speech watermarking based on direct spread spectrum (DSS) using a linear prediction scheme to solve sound distortion due to spread spectrum. Results of evaluation simulations revealed that the proposed method had much lower sound-quality distortion than the DSS method while having almost the same bit error ratios (BERs) against various attacks as the DSS method.