Function Enhancement of a Media Server-Based E-Learning System

[[abstract]]現今的市面上，已經有不少的遠距教學軟體，例如：Coelearning、中山大學遠距教學系統、及全螢幕錄影的方式…等，他們都分別有自己的特色，不過也分別有他們的缺點，有的需要大量的頻寬、有的在教學與教材會有不同步的缺點、有的則是互動性不佳…等，綜合以上各點，我們這邊發展了一套系統，以media encoder為基礎，將視訊資料與繪圖資訊等控制資料透過Media Encoder編碼發送至客戶端，兼顧了網路頻寬的需求，教學時教材與影音的同步，以及支援多種教材媒體等方面。許多老師上課時所使用的教材，都以microsoft的powerpoint為主，所以在這個版本中，我們加入了對powerpoint的支援，為了方便教材資訊的編輯，這邊也提供了教材管理系統，讓老師們可以在離線狀態下編輯教材的資訊[[abstract]]Nowadays, many remote learning systems were developed, ex: Coelearning, NSYSU Remote Learning System, and full screen type systems...etc. Each of them has particular advantages, but there are still some problems with them, ex: high bandwidth usage, asynchronous between teaching and materials, or lack of interaction... By using Media Encoder to encode video, audio and command script to streaming data, we implemented a Media-Server Based E-Learning System as the solution. Besides, we added Powerpoint file support and file information editing module in this version, then teachers can use more various teaching materials without constrain