Information Hinding Based on GSM Full Rate Speech Coding

摘要：

A steganographic method is proposed to embed secret data in GSM full rate transcoding bit stream. Depending on the unequal importance with respect to speech subjective quality of encoded parameters and their individual bits, appropriate bits, which have relatively low importance for the quality of host speech, are chosen to embed secret data. The secret information can be anything such as another compressed speech or a text. The mean opinion score (MOS) of the stego-speech is around 3.5, satisfying the requirement of communication quality.

关键词： steganography MOS GSM speech coding RPE-LTP

作者: Hu Licai Wang Shuozhong

作者单位: School of Communication and Information Engineering,Shanghai University,Shanghai 200072,China

会议类型: 国际会议

会议名称: 第二届IEEE无线通讯、网络技术暨移动计算国际会议

会议地点: 武汉

会议语种:英文

在线出版日期: 2006-09-01（万方平台首次上网日期，不代表论文的发表时间）