Non-Blind Speech Watermarking Method Based on Spread-Spectrum Using Linear Prediction Residue

Reiya NAMIKAWA; Masashi UNOKI

doi:10.1587/transinf.2019MUL0003

Special Section on Enriched Multimedia - Application of Multimedia Technology and Its Security -

Non-Blind Speech Watermarking Method Based on Spread-Spectrum Using Linear Prediction Residue

Reiya NAMIKAWA, Masashi UNOKI

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Keywords: speech watermarking, spectrum spreading, linear prediction residue, pseudo-random noise signal

JOURNAL FREE ACCESS

2020 Volume E103.D Issue 1 Pages 63-66

DOI https://doi.org/10.1587/transinf.2019MUL0003

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Abstract

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.

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