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Optimization of HE-AAC for Korean S-DMB Using TMS320C55x DSP Core  

Kim, Hyung-Jung (Electronics and Telecommunications Research Institute)
Jee, Deock-Gu (Electronics and Telecommunications Research Institute)
Abstract
This paper presents HE-AAC decoder optimization on TMS320C55x fixed-point DSP core using a DSP-C like FFR code, which provides fast and flexible porting to a DSP core. Our optimization efforts are focused on methodologies that include general optimization methods of FFR code suitable for general DSP or RISC platform in high-level language and software optimization methods in assembly language level. The implementation result requires 48 MIPS and 135 Kbytes memory space to decode 48 Kbps stereo using real Korean S-DMB data.
Keywords
DSP optimization; Real-time implementatiom Korean S-DMB; MPEG-AAC;
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