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ASME Press Select Proceedings

International Conference on Software Technology and Engineering (ICSTE 2012)

Editor
Jianhong Zhou
Jianhong Zhou
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ISBN:
9780791860151
No. of Pages:
680
Publisher:
ASME Press
Publication date:
2012

Robustness is one of the most important performances of audio watermarking algorithm. To analyze the robustness performance of direct sequence spread spectrum (DSSS) based audio watermarking algorithm, the bit error rate (BER) formulas of detected watermarking under original audio and additive white Gaussian noise (AWGN) interferences are deduced. According to the statistical model of DSSS-based audio watermarking system, which is established by adopting the statistical theory of signal detection, the robustness is in direct proportion to the length of spreading sequence and embedding power of watermark, and in inverse proportion to the variances of the transform coefficients of original audio...

1. Introduction
2. Fundamental Principle of Spread Spectrum Watermarking
3. Robustness Analysis Based on Statistical Theory of Signal Detection
4. Robustness Analysis Based on Spread Spectrum Communications Theory
5. Conclusion and Future Work
References
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