摘要
昆明滇池国际会展中心多媒体会议系统共有61个会议房间,重点介绍万人会场,在建筑长152 m,宽64 m,高25 m的超大空间内,又无专门建声装修的长混响时间(T60=10.58 s(500 Hz))条件下,讨论采用基于时序恢复的单纤高清光端机和光矩阵手段解决好会议扩声的方法,实现了高清音视频和控制信号的0延时、同步传输,语言清晰度高指标,经首届南博会使用,效果满意。
The multimedia conference system has a total of 61 meeting reoms in Dianchi lake in Kunming Dianchi International Convention Exhibition Center. Million People Conference Hall is introduced in this paper, which is a large space with 152 meters long, 64 meters wide, 25 meters high. There is no specially built acoustic decoration eonditious with long reverberation time T60 = 10.58 （5（10 Hz）.h is discussed that the timing recovery of single fiber high-definition optical n^chine and optical matrix method to solve good conference amplifying method. High-definition audio and video and control signal of zero delay, and synchronous transmission, high speech intelligibility index are achieved, and the effect is satisfied after the first CAEXPO.
出处
《电声技术》
2015年第8期3-8,共6页
Audio Engineering
关键词
万人会场
数字传输
语言清晰度
大空间
million people conference hall
digital transmission
language clarity
large space
