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Speech watermarking with objective fidelity and robustness criteria

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2 Author(s)
Gurijala, A.R. ; Dept. of Electr. & Comput. Eng., Michigan State Univ., East Lansing, MI, USA ; Deller, J.R., Jr.

Speech watermarking strategies inevitably alter original signal content. Fidelity is adversely affected by increased perturbation while watermark robustness to attack is generally improved. Parameter-embedded watermarking is effected through slight perturbations of parametric models of some deeply integrated dynamics of the speech. Within this framework, a specific algorithm is presented in which the fidelity-robustness tradeoff can be objectively assessed and quantifiably adjusted according to specific measures. An overview of the general parameter-embedding strategy is followed by presentation of the featured algorithm, analysis of its properties, and experiments with speech data to assess fidelity, robustness, and other performance properties.

Published in:

Signals, Systems and Computers, 2004. Conference Record of the Thirty-Seventh Asilomar Conference on  (Volume:2 )

Date of Conference:

9-12 Nov. 2003

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