Title :
Design optimization of MPEG-2 AAC decoder
Author :
Bang, Kyoung Ho ; Kim, Joon Seok ; Jeong, Nam Hun ; Park, Young Cheol ; Youn, Dae Hee
Author_Institution :
Dept. of Electr. Eng., Yonsei Univ., Seoul, South Korea
Abstract :
An optimized design for the 2-channel main-profile MPEG-2 AAC decoder is presented. For enabling efficient job scheduling and allocation, the design consists of three hardware modules: Huffman decoder, predictor, and processing core. The Huffman decoder is designed to complete the requested job within 1 clock cycle time and the predictor forms parallel processing with other modules, so that utilization of the system resource is maximized. The developed decoder decodes stereo MPEG-2 AAC bitstream in real-time using 16.9 MIPS with high efficiency
Keywords :
Huffman codes; audio coding; code standards; decoding; digital signal processing chips; fixed point arithmetic; optimisation; parallel processing; telecommunication standards; 16.9 MIPS; Huffman decoder; MPEG-2 AAC decoder; advanced audio coding; clock cycle time; design optimization; efficient job allocation; efficient job scheduling; fixed-point processing core; hardware modules; hardwired logic modules; hybrid-architecture; main-profile MPEG-2 AAC decoder; maximum system resource utilization; optimized design; parallel processing; predictor; processing core; real-time decoding; software implementation; stereo MPEG-2 AAC bitstream; Audio coding; Clocks; Computer architecture; Decoding; Design optimization; Filter bank; IEC standards; ISO standards; Logic; Signal processing;
Conference_Titel :
Consumer Electronics, 2001. ICCE. International Conference on
Conference_Location :
Los Angeles, CA
Print_ISBN :
0-7803-6622-0
DOI :
10.1109/ICCE.2001.935326
