Information Hiding for G.711 Speech Based on Substitution of Least Significant Bits and Estimation of Tolerable Distortion
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概要
- 論文の詳細を見る
In this paper, we propose a novel data hiding technique for G.711-coded speech based on the LSB substitution method. The novel feature of the proposed method is that a low-bitrate encoder, G.726 ADPCM, is used as a reference for deciding how many bits can be embedded in a sample. Experiments showed that the method outperformed the simple LSB substitution method and the selective embedding method proposed by Aoki. We achieved 4-kbit/s embedding with almost no subjective degradation of speech quality, and 10kbit/s while maintaining good quality.
著者
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Suzuki Yoiti
Research Institute of Electrical Communication, Tohoku University
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ITO Akinori
Graduate School of Engineering, Tohoku University
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ABE Shunichiro
Research Institute for Electrical Communication/Graduate School of Information Sciences, Tohoku Univ
関連論文
- Information Hiding for G.711 Speech Based on Substitution of Least Significant Bits and Estimation of Tolerable Distortion
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