数字化中波同步广播单频网的音频时延分析  

Analysis of audio time delay of digital single frequency network of MW synchronous broadcasting

作　　者：明承冲 应毓海[2] 章建文 朱云 

机构地区：[1]湖北广播电视台,湖北武汉430001 [2]安徽广播影视职业技术学院信息工程系,安徽合肥230011

出　　处：《电声技术》2016年第5期81-83,共3页Audio Engineering

基　　金：安徽省教育厅科学技术研究重点项目(kj2014A033)

摘　　要：随着广播电视技术的高速发展,广播电视信号的传输已经全部实现了数字化,数字化的音频在数字化传输途径中所产生的音频时延有很大的不同。介绍了组成中波同步广播单频网要素,针对单频网中同步发射台音频信号的各种传输途径,阐述数字化音频的各种传输方式,并具体分析每种传输方式所引起的音频信号时延。With the rapid development of radio and television technology, the radio and television signal transmission has been all digitized.However, the delay time of digital audio generated in digital transmission path has a great difference.The element of the single frequency network （SFN） of medium-wave（MW） synchronous broadcasting is introduced.Aiming at a variety of transmission way of MW synchronous broadcasting SFN, the various transmission modes of digital audio are ex- plained and each audio signal delay time caused by transport way is specifically analyzed.

关 键 词：中波 单频网 同步广播 数字化 时延 

分 类 号：TN948[电子电信—信号与信息处理]