在本論文中，將介紹目前運用相當廣泛的MP3編解碼技術和新興的第二代音訊編解碼技術Ogg Vorbis及其相關的理論背景，比較且分析其優缺點。並且利用具有強大數學運算能力的數位訊號處理器(德州儀器所開發的TMS320C6713)來實現。在此篇論文中，我們會使用一些最佳化的方法分析並改善編解碼器的效率，以期達到一個具有即時能力的編解碼器系統。

In this thesis, we implement both Ogg Vorbis and MP3 codes by the Digital Signal Processor TMS320C6713. Firstly, their merits and shortcomings between Ogg Vorbis and MP3 are compared. Secondly, we improve the efficiency of these audio codecs by many optimization algorithms. Finally, a real-time decoder of MP3 is realized and demonstrated.

[1]ISO/IEC JTC1/SC29/WG11 MPEG, “Information Technology Coding of Moving Pictures and Associated Audio for Digital Storage Media at up to about 1.5 Mbit/s, Part 3:Audio” , IS11172-3 1993.
[2]Y.H.Liou, “Hardware Implementation if MP3 Encoder and AES Algorithm”, Master Thesis of National Cheng Kung University, June 2004.
[3]T.Y.Chang, “Research and Implementation of MP3 Encoding Algorithm”, Master Thesis of National Chiao Tung University, June 2002.
[4]Y.F.Mu, “Study and Implementation of MPEG1 Layer3 Audio Decoding”, Master Thesis of National Cheng Kung University, June 2004.
[5]H.C.Chen, “Implementation of DSP-Based Decoder for MP3”, Master Thesis of National Cheng Kung University, July 2003.
[6]http://homepage10.seed.net.tw/web@3/oggzealot/index.htm
[7]C.Y.Hung, “Implementation of Ogg Vorbis Decoder based on TMS320C6701 EVM”, Master Thesis of National Cheng Kung University, June 2004.
[8]Vorbis I specification. http://www.xiph.org/ogg/vorbis/doc/Vorbis_I_spec.pdf
[9]M.Coleman, “Vorbis Illuminated”.
[10]http://www.xiph.org/
[11]T.I. TMS320C6713 DSK Technical Reference, January 2004.
[12]T.I. TMS320C6713,TMS320C6713B FLOATING-POINT DIGITAL SIGNAL PROCESSORS, March 2004,SPRS186H.
[13]T.I. TLV320AIC23 Stereo Audio CODEC,8-to 96-kHz,With Integrated Headphoen Amplifier, July 2001,SLWS106C.
[14]T.I. TMS320C6000 DSP Cache User Guide, May 2003,SPRU656A.