A low-power VLSI implementation for variable length decoder in MPEG-1 Layer III

Tsung Han Tsai; Chun Nan Liu; Wen Cheng Chen

doi:10.1117/12.532990

A low-power VLSI implementation for variable length decoder in MPEG-1 Layer III

Tsung Han Tsai, Chun Nan Liu, Wen Cheng Chen

電機工程學系

研究成果: 雜誌貢獻 › 會議論文 › 同行評審

摘要

MPEG Layer III (MP3) audio coding algorithm is 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 (VLD) e.g. Huffman decoding, is an important part of MP3, which needs great amount of search and memory access operations. In this paper a data driven variable length decoding algorithm is presented, which exploits the signal statistics of variable length codes to reduce power and a two-level table lookup method is presented. The decoder was designed based on simplicity and low-cost, low power consumption while retaining the high efficiency requirements. The total power saving is about 67%.

原文	???core.languages.en_GB???
頁（從 - 到）	30-39
頁數	10
期刊	Proceedings of SPIE - The International Society for Optical Engineering
卷	5309
DOIs	https://doi.org/10.1117/12.532990
出版狀態	已出版 - 2004
事件	Embedded Processors for Multimedia and Communications - San Jose, CA, United States 持續時間: 19 1月 2004 → 20 1月 2004

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10.1117/12.532990

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AB - MPEG Layer III (MP3) audio coding algorithm is 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 (VLD) e.g. Huffman decoding, is an important part of MP3, which needs great amount of search and memory access operations. In this paper a data driven variable length decoding algorithm is presented, which exploits the signal statistics of variable length codes to reduce power and a two-level table lookup method is presented. The decoder was designed based on simplicity and low-cost, low power consumption while retaining the high efficiency requirements. The total power saving is about 67%.

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A low-power VLSI implementation for variable length decoder in MPEG-1 Layer III

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