LPC Prediction Error Combined with LSB Steganography for Blind Speech Authentication

Author

Peiqi, Chai ; Jingyong, Liu ; Dingyu, Pei ; Zhiqiang, Yang

Author_Institution

Dept. of Comput. Sci., Tongji Univ., Shanghai

fYear

2005

fDate

Oct. 30 2005-Nov. 2 2005

Firstpage

1

Lastpage

4

Abstract

In this paper, we propose a new blind speech authentication method to verify the authenticity and integrity of speech. In this method, linear predictive coding (LPC) and least significant bit (LSB) steganography are combined, using LPC prediction error (LPCPE) as invariable features of speech and inserting these features into least significant bits of speech samples. When verifying the speech, we extract the inserted features, and compare them with recalculated LPCPE. Experimental results show that this method can detect not only the tampering in speech but also the position and region of the tampering

Keywords

cryptography; feature extraction; linear predictive coding; speech coding; LPC prediction error; LSB; blind speech authentication; feature extraction; least significant bit steganography; linear predictive coding; speech integrity; speech sample; Authentication; Computer errors; Linear predictive coding; Protection; Speech analysis; Speech coding; Speech enhancement; Speech synthesis; Steganography; Watermarking; LPC prediction error (LPCPE); least significant bit (LSB); linear predictive coding (LPC); speech authentication;

fLanguage

English

Publisher

ieee

Conference_Titel

Multimedia Signal Processing, 2005 IEEE 7th Workshop on

Conference_Location

Shanghai

Print_ISBN

0-7803-9288-4

Electronic_ISBN

0-7803-9289-2

Type

conf

DOI

10.1109/MMSP.2005.248631

Filename

4014052