Abstract: The modern distance education is the most important development direction of international education nowadays, and the sub-audio-frequency system is the most important composing part, the realization principle and method of voice collecting and transmission are discussed mostly in the paper and the part realization code of sub-audio-frequency system is given.

摘要： 现代远程教育是近年来国际教育发展的重要趋势，音频子系统是远程教育系统的一个非常重要的组成部分，文章主要介绍语音采集与传输原理和实现方法，并给出了部分实现代码。

关键词: 远程教育, 语音采集, 代码

CLC Number: 

• TN912