The Analysis of VLC-Coded Efficiency Based on MPEG-I Layer III Audio

Author

Tan, Jiaqiang ; Wang, Rangding

Author_Institution

CKC Software Lab., Ningbo Univ., Ningbo

fYear

2008

fDate

22-24 Sept. 2008

Firstpage

136

Lastpage

141

Abstract

The multimedia bitstream is comprised of variable length codes (VLC) to a large extent. If data hiding is carried out in multimedia compressed domain, VLC are usually chosen as the hidden object. The VLC-coded efficiency is a key factor which can directly affect the method of data hiding. MPEG-I layer III (MP3) audio is chosen as analytical object in this paper. The VLC-coded rule is obtained by analyzing the VLC-coded efficiency of the MP3 audios. The process of variable length coding in MP3 audio can be understood further passing through the VLC-coded rule. At the same time, it also provides a favorable theoretical base for seeking for effective data hiding methods in MP3 audio compressed domain.

Keywords

audio coding; data compression; multimedia systems; variable length codes; MP3 audio compressed domain; MPEG-I layer III audio; data hiding; multimedia bitstream; multimedia compressed domain; variable length codes; Code standards; Data encapsulation; Digital audio players; Encoding; Filter bank; Internet; Quantization; Sampling methods; Time frequency analysis; Transform coding;

fLanguage

English

Publisher

ieee

Conference_Titel

Cyberworlds, 2008 International Conference on

Conference_Location

Hangzhou

Print_ISBN

978-0-7695-3381-0

Type

conf

DOI

10.1109/CW.2008.26

Filename

4741291