Watermarking Combined with CELP Speech Coding for Authentication(Speech and Hearing)

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概要

• 論文の詳細を見る

• This letter presents a speech watermarking scheme that is combined with CELP (Code Excited Linear Prediction) speech coding for speech authentication. The excitation codebook of CELP is partitioned into three parts and labeled '0', '1' and 'any' according to the private key. Watermark embedding process chooses the codebook whose label is the same as the watermark bit and combines it with the codebook labeled 'any' for CELP coding. A statistical method is employed to detect the watermark, and the watermark length for authentication and detection threshold are determined by false alarm probability and missed detection probability. The new codebook partition technique produces less distortion, and the statistical detection method guarantees that the error probability can be controlled under prescribed level.

• 社団法人電子情報通信学会の論文
• 2005-02-01

著者

• Lu Zhe

  Department of Biological Science, College of Natural Sciences, Wonkwang University

• Lu Zhe

  Department Of Automatic Test And Control Harbin Institute Of Technology

• YAN Bin

  Department of Automatic Test and Control, Harbin Institute of Technology

• SUN Sheng

  Department of Automatic Test and Control, Harbin Institute of Technology

• Yan Bin

  Department Of Automatic Test And Control Harbin Institute Of Technology

• Sun Sheng

  Department Of Automatic Test And Control Harbin Institute Of Technology

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• Watermarking Combined with CELP Speech Coding for Authentication(Speech and Hearing)

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