A pure-ASIC design approach for MPEG-2 AAC audio decoder

Author

Tsai, Tsung-Han ; Liu, Chun-Nan ; Wang, Yi-Wen

Author_Institution

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

Volume

3

fYear

2003

fDate

15-18 Dec. 2003

Firstpage

1633

Abstract

MPEG advanced audio coding (AAC) is the widely used audio coding standard and offers the high-quality multi channel surround audio. For the implementation using DSP method, the hardware is not dedicated to the algorithms and the hardware utilization efficiency and power consumption is not optimized. This paper presents a novel AAC audio decoder that is suitable for ASIC design implementation. First, each block has been analyzed to get the dedicated hardware. Then through the well scheduling and pipeline processing, a common hardware can be shared for two channel stereo signal decoding. Hence the hardware utilization and power consumption are promoted effectively.

Keywords

application specific integrated circuits; audio coding; computational complexity; decoding; digital signal processing chips; integrated circuit design; pipeline processing; scheduling; MPEG-2 AAC audio decoder; advanced audio coding; application specific integrated circuits; computational complexity; hardware utilization; pipeline processing; power consumption; pure-ASIC design approach; scheduling; stereo signal decoding; Audio coding; Decoding; Digital signal processing; Energy consumption; Filter bank; Frequency domain analysis; Hardware; Noise shaping; Optimization methods; Table lookup;

fLanguage

English

Publisher

ieee

Conference_Titel

Information, Communications and Signal Processing, 2003 and Fourth Pacific Rim Conference on Multimedia. Proceedings of the 2003 Joint Conference of the Fourth International Conference on

Print_ISBN

0-7803-8185-8

Type

conf

DOI

10.1109/ICICS.2003.1292744

Filename

1292744