Title :
DSP implementation of real-time MPEG-2 audio decoder using novel synthesis filter bank
Author :
Paik, Won-Kyu ; Hwang, Sun-Young
Author_Institution :
Dept. of Electron. Eng., Sogang Univ., Seoul, South Korea
fDate :
7/8/1999 12:00:00 AM
Abstract :
An efficient synthesis filter is presented which can carry out real-time MPEG-2 audio decoding. The proposed algorithm reduces the number of MAC operations by adopting novel IDCT and windowing schemes, exploiting a multichannel structure, and implementing CGD techniques. The DSP implementation is MPEG-2 compliant and achieves real-time processing with 60% reduction in run-time compared with a fast ISO decoder
Keywords :
audio signal processing; digital filters; discrete cosine transforms; inverse problems; iterative decoding; real-time systems; CGD techniques; DSP implementation; IDCT scheme; MAC operations; multichannel structure; real-time MPEG-2 audio decoder; real-time processing; run-time; synthesis filter bank; windowing schemes;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19990818
