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电台的大型户外活动直播,音频信号的传输非常重要。本文着重介绍了音频信号远距离传输常用的通过调频发射机、电话耦合器、数字音频编码器,ISDN方式,光纤传输等方式及其基本原理、优缺点和应用。
Radio broadcast of large outdoor activities, audio signal transmission is very important. This article focuses on the commonly used methods of long-distance transmission of audio signals through FM transmitters, telephone couplers, digital audio encoders, ISDN methods, optical fiber transmission, and their basic principles, advantages, disadvantages and applications.