音频比对系统在调频广播播出中的作用

The Role of Audio Comparison System in FM Broadcasting

调频广播的播出质量及安全播出一直是社会关注的问题。为了在传输和播出调频广播信号的过程中能够实时监听监测到空收信号的内容和信源的内容是否一致,避免信号因自然环境、非法干扰、设备故障的影响,造成停播、错播、非法插播、劣播等故障,龙岩市发射台使用了音频比对系统来解决这一系列问题。笔者发现,该系统可对同一频点的各路信源、中间传输和切换环节、发射端环节和远端接收环节之间音频信号的内容实时比对,及时发现信号中的问题,减轻机房值班人员的强度,提高调频广播安全播出的可靠性。

The quality and safety of FM broadcasting has always been a concern of the society.In order to monitor whether the content of the radio signal is consistent with the content of the source in real time during the transmission and broadcast of the FM broadcast signal,and to avoid the failure of the signal caused by natural environment,illegal interference and equipment failure,such as stop broadcasting,wrong broadcasting,illegal insertion and poor broadcasting,Longyan transmitting station uses audio comparison system to solve this series of problems.The author found that the system can compare the contents of audio signals between various sources,intermediate transmission and switching links,transmitting end links and remote receiving links at the same frequency point in real time,find out the problems in the signals in time,reduce the strength of the personnel on duty in the computer room,and improve the reliability of safe broadcasting of FM radio.