首届上海进博会CCTV4前方演播室音频系统设计与实施

Design and implement of the audio system for CCTV4 Shanghai studio in the first China international import expo

2018年11月5日,首届中国国际进口博览会在上海虹桥国家会展中心正式开幕。中央广播电视总台在上海设置了前方演播室,笔者作为中央电视台中文国际频道前方演播室音频负责人,从前期策划、搭建系统、调试设备、演练以及正式交机,全程参与了进博会所有直播任务。本文以上海演播室音频系统总设计方案为主线、着重介绍了该系统中耦合器的搭建与使用、四线信号的概念与应用、以及其他技术制作要点等。通过对电视直播前方演播室搭建流程的解析与归纳,不断地总结和思考,以期更好地优化和完善电视转播节目制作方案。

The first China international import expo was officially opened in Shanghai Hongqiao national convention and exhibition center on November 5 th2018. CCTV set up a front studio in Shanghai. As the audio engineer of the front studio of CCTV4, I participated through all the live telecast and process of the preliminary planning, system building, equipment testing, rehearsal and handover. Based on the general design of shanghai studio audio system, this paper introduced the construction and use of couplers in the system, the concept and application of four wire signal, and other key technologies. By focusing on the analysis and induction of the construction process of the studio in front of the live TV broadcast, we can constantly optimizing the production of the live telecast program.