| 研究生: |
王韋傑 Wang, Wei-Jei |
|---|---|
| 論文名稱: |
網路電話系統於系統晶片之實現 Implementation of VoIP System on SoC Platform |
| 指導教授: |
楊家輝
Yang, Jar-Ferr |
| 學位類別: |
碩士 Master |
| 系所名稱: |
電機資訊學院 - 電腦與通信工程研究所 Institute of Computer & Communication Engineering |
| 論文出版年: | 2005 |
| 畢業學年度: | 93 |
| 語文別: | 中文 |
| 論文頁數: | 65 |
| 中文關鍵詞: | 網路電話系統 、系統晶片 、語音壓縮 、語音編碼 |
| 外文關鍵詞: | G.729, Speech coding, SoC |
| 相關次數: | 點閱:106 下載:4 |
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本論文主要研究內容是於系統晶片之DSP端實現G.729編解碼器,並結合網路及ARM端的操作系統,完成網路電話系統。由於G.729編解碼器計算量過大,所以將原始碼最佳化並改寫組合語言,接著使用快速演算法加速固定碼簿搜尋,使G.729編解碼器可於DSP完成即時編解碼,最後結合ARM端的作業系統及應用程式,完成具有通話及留言功能的網路電話系統。
In this thesis, the implementation of G.729 Codec at DSP side on SoC platform is our mainly search, and we also combine the operating system at ARM side and network to complete VoIP System. At first, the G.729 Codec takes lots of calculation, so the sources codes of G.729 Codec have to be optimized and rewritten as assembly code. Then, the fast algorithm accelerate the fixed-codebook search, let the G.729 Codec achieve real-time encoding and decoding at DSP side. Finally, we combine the operating system and the application program at ARM side to complete the VoIP System which has the function of communication and leaving messages.
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[14]陳郁利,MPEG-4進階音響解碼器於系統晶片之實現 , 碩士論文--國立成功大學電機工程研究所, 民93
[15]廖恪應,網路MPEG-4視訊點播器於系統晶片之實現, 碩士論文--國立成功大學電機工程研究所, 民93