臺灣博碩士論文加值系統

Moving Picture Experts Group-1 / Layer3（MP3）演算法在軟體的應用上日趨成熟，因此以硬體來實現出MP3就成了一個新的課題，其中解碼的部份，由於需要符合即時的撥放，更適合以硬體來實現，所以本篇論文就是要以硬體來實現出MP3解碼器，並且我們選擇用現場可程式化邏輯陣列（Field Programmable Gate Array, FPGA）做為設計的環境。以軟體來做MP3解碼的時候，為了運算的方便，所以對於記憶體的使用就無特別限制，但是若在硬體設計時不去考慮的話，就會因為增加了記憶體而讓設計成本和功率消耗提高，所以針對MP3解碼的一些特性，我們也提出一種有效的記憶體使用方式，在降低記憶體使用量也還可以維持即時撥放。

The Moving Picture Experts Group-1 / Layer3（MP3）algorithm on software application becomes more and more great. Therefore, to use hardware to implement MP3 obviously become a new field of course. In decoder section, because it needs to match the standard of real-time which makes it even better to present it by hardware. The objective for this thesis is to implement MP3 decoder by using hardware. Moreover, we decide to use Field Programmable Gate Array〈FPGA〉as for our design environment. We use software to do MP3 decode, because it is easier on calculation. Therefore, we don’t have any restriction on memory size. However, if we don’t consider this problem when we are designing our hardware, it would increase the price and the power consumption. That’s why we suggest a more effective memory management method according to some characteristic of MP3 decode. This method can reduce the memory size use and it can also maintain the real-time standard.

1. Introduction………………………………………1
2. MPEG Background……………………………………5
3. MP3 Decoder Algorithm……………………………10
4. Efficient Memory Management Method.…………18
5. Implementation of Our MP3 Decoder……………35
6. Conclusions…………………………………………40
Reference……………………………………………41

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