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Implementation of a 16-Bit Fixed-Point MPEG-2/4 AAC Decoder for Mobile Audio Applications  

Kim, Byoung-Eul (Department of Electronic Engineering, Sogang University)
Hwang, Sun-Young (Department of Electronic Engineering, Sogang University)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.33, no.3C, 2008 , pp. 240-246 More about this Journal
Abstract
An MPEG-2/4 AAC decoder on 16-bit fixed-point processor is presented in this paper. To meet audio quality criteria, despite small word length, special design methods for 16-bit foxed-point AAC decoder were devised. This paper presents particular algorithms for 16-bit AAC decoding. We have implemented an efficient AAC decoder using the proposed algorithms. Audio contents can be replayed in the decoder without quality degradation.
Keywords
AAC; Audio coding; MPEG audio; 16-bit fixed-point; IMDCT;
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