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1概述随着声频技术和视频技术的快速发展,二者相互融合、共同发展的动向越来越明显。从现代化的礼堂、会议厅、多功能厅,到多媒体教室和指挥中心,都趋向于将高品质的音频设备与视频设备相互结合,组成双高清会议系统,满足人们对听觉和视觉方面的需求。而近些年兴起的会议互联互通、远程会议、远程示教等新的会议应用形式,更加推动了这一趋势。音视频传输系统是信息化视听系统中的一个重要环节。随着高清技术的发展,1080p已经逐渐成为会
1 Overview With the rapid development of audio technology and video technology, the trend of mutual convergence and common development becomes more and more obvious. From modern auditoriums, conference halls, multi-purpose halls, to multi-media classrooms and command centers all tend to combine high-quality audio equipment with video equipment to form dual HD conferencing systems to meet people’s audio and visual needs. In recent years, new conference applications such as conference interoperability, teleconferencing and distance education have all contributed to this trend. Audio and video transmission system is an important part of information technology. With the development of high-definition technology, 1080p has gradually become