DocumentCode
3089879
Title
Scalefactor based bit shift FGS audio coding
Author
Chen, Fang-Chu ; Chiu, Te-Ming
Author_Institution
Comput. & Commun. Res. Labs., Ind. Technol. Res. Inst., Taiwan
Volume
2
fYear
2005
fDate
28-30 March 2005
Firstpage
235
Abstract
In this paper, a method for applying psychoacoustic effects into the reformation of an MPEG-4 bit sliced arithmetic coded (BSAC) scalable audio bitstream is presented. The method is to rearrange the compressed information based on the scalefactors calculated by the psychoacoustics model in order to reflect the different subjective significance of the compressed data. At low bit rate it improves the coding efficiency by a considerable amount.
Keywords
arithmetic codes; audio coding; data compression; speech coding; video coding; BSAC scalable audio bitstream; MPEG-4 bit sliced arithmetic coding; fine granularity scalability; psychoacoustic effects; scalefactor based bit shift FGS audio coding; Audio coding; Bit rate; Ear; Humans; MPEG 4 Standard; Psychoacoustic models; Psychology; Quantization; Streaming media; Video coding;
fLanguage
English
Publisher
ieee
Conference_Titel
Advanced Information Networking and Applications, 2005. AINA 2005. 19th International Conference on
ISSN
1550-445X
Print_ISBN
0-7695-2249-1
Type
conf
DOI
10.1109/AINA.2005.304
Filename
1423684
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