Audio Transcoding Algorithm For Mobile Multimedia Application

Author

Bang, Kyoung Ho ; Park, Young Cheol ; Youn, Dae Hee

Author_Institution

Dept. of Electr. & Electron. Eng., Yonsei Univ., Seoul

Volume

3

fYear

2006

fDate

14-19 May 2006

Abstract

In this paper, we propose an audio transcoding algorithm for mobile multimedia applications. The algorithm is to provide high quality transcoded audio stream from a multimedia broadcasting media server system to mobile terminals. As a representative case, audio transcoder between T-DTV and T-DMB service is considered. While the Korean DTV audio standard adopted the Dolby AC-3, the Korean T-DMB service uses the MPEG-4 BSAC. The proposed algorithm reuses the bit allocation information of the AC-3 decoder in the process of BSAC encoding and simplifies the bit-allocation process with two independent loops instead of nested ones. We verified that our architecture could take the place of the nested loop with a significant simplification and no PAM. The proposed audio transcoding algorithm is suitable for the mobile multimedia applications due to its low complexity and minimum frame-by-frame complexity variations

Keywords

audio coding; media streaming; mobile communication; multimedia servers; television broadcasting; transcoding; MPEG-4 BSAC; T-DMB service; T-DTV; audio transcoding algorithm; bit allocation information; frame-by-frame complexity variations; mobile multimedia application; mobile terminals; multimedia broadcasting media server; transcoded audio stream; Bit rate; Decoding; Digital TV; Digital multimedia broadcasting; Encoding; MPEG 4 Standard; Multimedia communication; Multimedia systems; Streaming media; Transcoding;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech and Signal Processing, 2006. ICASSP 2006 Proceedings. 2006 IEEE International Conference on

Conference_Location

Toulouse

ISSN

1520-6149

Print_ISBN

1-4244-0469-X

Type

conf

DOI

10.1109/ICASSP.2006.1660869

Filename

1660869