4K超高清视频会议系统音视频时延测试方案设计  

Design of Audio and Video Delay Test Scheme for 4K UHD Video Conference System

作　　者：李庆伟[1,2] 赖东林 薛京[1,2] 范飞 贾敏[3] LI Qingwei;LAI Donglin;XUE Jing;FAN Fei;JIA Min(The Third Institute of CETC,Beijing 100015,China;Beijing ATV Technology Co.,Ltd.,Beijing 100015,China;Beijing Information and Communication Technology Research Center,Beijing 100840,China)

机构地区：[1]中国电子科技集团公司第三研究所,北京100015 [2]北京奥特维科技有限公司,北京100015 [3]北京信息通信技术研究中心,北京100840

出　　处：《电视技术》2020年第6期52-57,共6页Video Engineering

摘　　要：随着信号处理技术、视音频编解码技术以及网络技术的高速发展,4K超高清视频会议已逐渐发展成为行业的主流。新建的超清视频会议分会场可能存在一定程度的唇音不同步现象,影响用户的体验。因此,主要介绍针对本地视频系统设备以及端到端视频会议系统的多种时延测试方案,结合测试结论,提出了消除4K超清视频会议系统音像不同步的解决方法。With the rapid development of signal processing technology,video and audio codec technology and network technology,4K ultra high definition video conference has gradually become the mainstream of the industry.The newly built 4K UHD video conference may have a certain degree of lip sound out of sync,affecting the user experience.This paper mainly introduces a variety of delay test schemes for local video system equipment and end-to-end video conference system.Combined with the test results,it proposes a solution to eliminate the audio-visual asynchrony of 4K video conference system.

关 键 词：时延 超高清 视频会议 音视频 

分 类 号：TN948.63[电子电信—信号与信息处理]