| Fast-Integer Optimization for WMA Compatible Decoder on Embedded System without FPU | |
|---|---|
| 學年 | 97 |
| 學期 | 1 |
| 出版（發表）日期 | 2008-12-01 |
| 作品名稱 | Fast-Integer Optimization for WMA Compatible Decoder on Embedded System without FPU |
| 作品名稱（其他語言） | 無FPU之嵌入式系統WMA相容解碼器之快速整數最佳化設計 |
| 著者 | Hwang, Lain-jinn; Shih, Chien-chou; Chen, Wei; Kuo, I-ting |
| 單位 | 淡江大學資訊工程系 |
| 出版者 | 淡江大學 |
| 著錄名稱、卷期、頁數 | 淡江理工學刊=Tamkang Journal of Science and Engineering 11(4), pp.375-386 |
| 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. |
| 關鍵字 | Ebedded Sstem;Foating Pint;Fxed-point;WMA |
| 語言 | en |
| ISSN | 1560-6686 |
| 期刊性質 | 國內 |
| 收錄於 | EI |
| 產學合作 | |
| 通訊作者 | Shih, Chien-chou |
| 審稿制度 | 否 |
| 國別 | TWN |
| 公開徵稿 | |
| 出版型式 | ,電子版,紙本 |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/50511 ) |
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