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    請使用永久網址來引用或連結此文件: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/50511


    題名: Fast-Integer Optimization for WMA Compatible Decoder on Embedded System without FPU
    其他題名: 無FPU之嵌入式系統WMA相容解碼器之快速整數最佳化設計
    作者: Hwang, Lain-jinn;Shih, Chien-chou;Chen, Wei;Kuo, I-ting
    貢獻者: 淡江大學資訊工程系
    關鍵詞: Ebedded Sstem;Foating Pint;Fxed-point;WMA
    日期: 2008-12-01
    上傳時間: 2010-08-09 18:51:05 (UTC+8)
    出版者: 淡江大學
    摘要: This paper presents a general software optimization technique which enables an embedded system to playWindows Media Audio (WMA) fluently without the support of floating point unit (FPU). We employ fixed-point arithmetic operations, instead of floating-point, to optimize the computational overhead during the audio decoding process. Thus the proposed performance improvements by programming in C language are useful for the implementation of the real-timeWMAcompatible decoder on ARM920T based embedded system. This work achieved performance increase by reducing the CPU usage rate from 100% to 45% with great precision on the average around 1-bit error.
    關聯: 淡江理工學刊=Tamkang Journal of Science and Engineering 11(4), pp.375-386
    DOI: 10.6180/jase.2008.11.4.07
    顯示於類別:[資訊工程學系暨研究所] 期刊論文
    [資訊傳播學系暨研究所] 期刊論文

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