Information Hiding for G.711 Speech Based on Substitution of Least Significant Bits and Estimation of Tolerable Distortion

被引：8

作者：

Ito, Akinori ^{[1
]}

Abe, Shun'ichiro ^{[2
]}

Suzuki, Yoiti ^{[2
]}

机构：

[1] Tohoku Univ, Grad Sch Engn, Sendai, Miyagi 9808579, Japan

[2] Tohoku Univ, Res Inst Elect Commun, Grad Sch Informat Sci, Sendai, Miyagi 9808579, Japan

来源：

IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES | 2010年 / E93A卷 / 07期

关键词：

speech coding; data hiding; G.711; ADPCM; LSB substitution;

D O I：

10.1587/transfun.E93.A.1279

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

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 10 kbit/s while maintaining good quality.

引用

页码：1279 / 1286

页数：8