经解嵌声音失真问题研究  

Research on Problem of Sound Distortion by Audio Demultiplexing

作　　者：孙琳 

机构地区：[1]浙江广播电视集团,浙江310000

出　　处：《广播与电视技术》2016年第5期58-61,共4页Radio & TV Broadcast Engineering

摘　　要：本文探寻了一款高清摄像机输出的SD-SDI信号经解嵌后声音出现失真的原因,借此介绍了LV7770对SDI信号中附属数据的检测方法,通过对不同摄像机的输出对比和与现行国家标准的对照,总结笔者对加嵌与解嵌的一点研究和思考。This paper explores the reason of sound distortion by demultiplexing SD-SDI signal from a high-definition camera output.The paper introduces detection methods for ancillary data in SDI with LV7770.Through the comparison of different camera outputs compared with the current national standard,a little research and thinking of audio multiplexing and demultiplexing is described.

关 键 词：音频加解嵌 SMPTE 272M标准 附属数据 

分 类 号：TN94[电子电信—信号与信息处理]