SoC platform based design of MPEG-2/4 AAC audio decoder

Author

Liu, Chun-Nan ; Tsai, Tsung-Han

Author_Institution

Dept. of Electr. Eng., Nat. Central Univ., Chung-li, Taiwan

fYear

2005

fDate

23-26 May 2005

Firstpage

2851

Abstract

This paper presents an SoC platform based design for the implementation of an AAC audio decoder. We present the approach not only for the characteristics of the algorithm, but also provide the numerical decision for evaluation of the various approaches. The overall system is first analyzed and profiled with the ARM profiler. Then the decoder system is partitioned into software part and hardware part respectively based on the property of analysis. The software part is developed for the implementation of intensive decision making operations needed for audio bitstreams. The hardware part is a dedicated hardware for the regular and computation intensive operations in AAC audio decoding. The decoder system is realized on the ARM integrator platform where the hardware and software is communicated efficiently with the AMBA architecture.

Keywords

audio coding; code standards; decision making; decoding; system-on-chip; AMBA architecture; ARM integrator platform; ARM profiler; MPEG-2/4 AAC audio decoder; SoC platform based design; audio bitstreams; audio decoding; decision making; hardware part; software part; Audio coding; Communication system software; Computer architecture; Decision making; Decoding; Digital audio players; Hardware; Modeling; Software performance; Transform coding;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2005. ISCAS 2005. IEEE International Symposium on

Print_ISBN

0-7803-8834-8

Type

conf

DOI

10.1109/ISCAS.2005.1465221

Filename

1465221