高标清同播时代播出系统运行机制与收视伴音异常问题研究

The Research on the Operating Mechanism of High and Standard Definition Simultaneous Broadcasting System and Problemof Abnormal Accompanying Sounds

随着高标清节目同步播出方案的正式施行,我国广播电视领域开始进入高标清同播时代。研究高标清同播时代背景和技术特点,深入分析高清播出系统与标清播出系统的运行机制,明确高清播出系统和标清播出系统存在的差异性和问题。重点针对高清信号和标清信号之间变换引发的收视伴音异常问题,给出了相应的解决措施,进而提升标清电视用户的使用体验。

With the formal implementation of the synchronous broadcast scheme of high standard definition programs,the field of radio and television in China has begun to enter the era of simultaneous broadcast of high standard definition programs.This paper studies the background and technical characteristics of high-definition simultaneous broadcasting,deeply analyzes the operation mechanism of high-definition broadcasting system and standard-definition broadcasting system,and clarifies the differences and problems between high-definition broadcasting system and standard-definition broadcasting system.Focusing on the abnormal viewing sound caused by the conversion between high-definition signal and standard-definition signal,the corresponding solutions are given,so as to improve the user experience of standard-definition TV.