高标清同播若干技术问题解析  

Technology of Broadcast in Both Standard-definition and HD

作　　者：罗建光[1] 

机构地区：[1]湖南广播电视台播控中心,湖南长沙410003

出　　处：《中国有线电视》2017年第6期747-748,共2页China Digital Cable TV

摘　　要：简要论述了构建高标清同播平台的技术策略,概述了高清播出的特征以及整体架构,细致论述了高标清电视同播平台中需要面对的上下变换、音频及同步问题,希望以此为播出机房的高标清同播改造提供建议和参考。This paper briefly discusses the construction strategy of simulcast platform for both standard-defini- tion and High-definition, summarizes the characteristics of HD broadcast and the overall architecture, and detailed such problems as up and down conversion and audio synchronization on SD＆HDTV simulcast platform, hoping to a provide some suggestions and reference to the renovation of SD＆HD simulcast broadcast in the broadcast room.

关 键 词：高标清同播技术 架构 幅型变换 同步 音频 

分 类 号：TN948.1[电子电信—信号与信息处理]