A simple and low-cost MPEG audio degrouping algorithm

Author

Tsai, Tsung-Han ; Chen, Liang-Gee ; Wu, Ren, Jr.

Author_Institution

Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan

Volume

2

fYear

1998

fDate

1998

Firstpage

1154

Abstract

Degrouping is the key component in MPEG Layer II audio decoding. It mainly contains the arithmetic operations of division and modulo, which require lots of hardware and computation time. In this paper, we propose a novel degrouping algorithm with a low complexity design concept. By using mode selection and iterative decomposition, only the addition and subtraction are needed. The elimination of the multiplier, divider and ROM table can therefore save a lot of chip area, but still keeps the high efficiency without loss of any accuracy

Keywords

audio coding; computational complexity; decoding; digital arithmetic; iterative methods; MPEG Layer II audio decoding; MPEG audio degrouping algorithm; addition; arithmetic operations; computation time; iterative decomposition; low complexity design concept; mode selection; subtraction; Algorithm design and analysis; Arithmetic; Digital signal processing; Equations; Hardware; Iterative decoding; Quantization; Read only memory; Signal processing algorithms; Transform coding;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing Proceedings, 1998. ICSP '98. 1998 Fourth International Conference on

Conference_Location

Beijing

Print_ISBN

0-7803-4325-5

Type

conf

DOI

10.1109/ICOSP.1998.770821

Filename

770821