By Topic

Optimization of an AVS Audio Decoder on DSP

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

4 Author(s)
Chen Shuixian ; Comput. Sch., Wuhan Univ. ; Ai Haojun ; Hu Ruimin ; Yang Yuhong

The part III of Audio Video Standard of China (AVS) is the first Hi-Fi audio coding standard in China public domain. Through nonlinear quantization and context-dependent bitplane entropy coding (CBC), it offers distinct features of nonlinear quantization noise adaptation and high efficiency fine grain scalability (FGS), but also imposes great challenges on fixed-point implementation with high precision requirement and stringent computational resource restriction. This paper presents tuned optimization strategies for fixed-point arithmetic, buffer manipulation, entropy decoding, and CBC decoding loop reduction to address the challenges. The demonstration real-time implementation on fixed-point DSP TMS320C5509A shows that our design optimization cuts down computational complexity from over 200 MIPs to 60 MIPs while preserving over 15 effective bits precision for 16-bit PCM output

Published in:

2006 International Conference on Wireless Communications, Networking and Mobile Computing

Date of Conference:

22-24 Sept. 2006