Title :
A low power VLSI implementation for variable length decoder in MPEG-1 layer III
Author :
Tsai, Tsung-Han ; Chen, Wen-Cheng ; Liu, Chun-Nan
Author_Institution :
Dept. of Electr. Eng., Nat. Central Univ., Chung-li, Taiwan
Abstract :
MPEG layer III (MP3) audio coding algorithm was a widely used audio coding standard. It involves several complex coding techniques and is therefore difficult to create an efficient architecture design. The variable length decoding was an important part, which needs great amount of search and memory read/write operations. In this paper a data driven variable length decoding algorithm is presented, which can exploit the signal statistics of variable length codes to reduce power. The decoder was designed based on simplicity and low-cost, low power consumption while retaining the high efficiency requirements.
Keywords :
VLSI; audio coding; decoding; table lookup; variable length codes; MP3; MPEG-1 layer III; architecture design; audio coding algorithm; data driven variable length decoding algorithm; low power VLSI implementation; low power consumption; memory read; signal statistics; write operations; Audio coding; Audio compression; Binary trees; Decoding; Detectors; Digital audio players; Energy consumption; Table lookup; Transform coding; Very large scale integration;
Conference_Titel :
Multimedia and Expo, 2003. ICME '03. Proceedings. 2003 International Conference on
Print_ISBN :
0-7803-7965-9
DOI :
10.1109/ICME.2003.1220872