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《Audio Engineering》 2006-07
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A Digital Audio Watermarking Algorithm in DWT Domain Based on Logistic-map Encryption

WANG Qing-xi1,2, ZHENG Xiao-shi2, LIU Guang-qi2, ZHAO Yan-ling2, LI Na2 (1. College of Information Science and Technology, Shandong Institute of Light Industry, Jinan 250100, China; 2. Shandong Computer Science Center, Jinan 250014, China)  
The logistic-map sequences to encrypt the watermark are used. The original audio signal in DWT(Discrete Wavelet Transform) domain is seperated into some pieces determined by the ratio between the length of the low frequency parts and the length of the encrypted watermark. Every bit of the watermark is added into the relevant pieces of the low frequency parts in the DWT domain. Experimental results show that the algorithm is robust against some StirMark attacks.
【Fund】: 山东省中青年科学家科研奖励基金(2004BS01005)
【CateGory Index】: TN912.3;TN918
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