应急广播高保真音质的技术实现  

Realization of Hi-Fi Sound Quality in Emergency Broadcasting

作　　者：吴靖雯 Wu Jingwen(Guangzhou Broadcasting Network,Guangdong 510000,China)

机构地区：[1]广州市广播电视台,广东510000

出　　处：《广播与电视技术》2018年第8期66-68,共3页Radio & TV Broadcast Engineering

摘　　要：目前,科技发展日新月异,新技术、新产品推陈出新。应急广播系统的建设应结合自身特点和需求,创新思维、优化设计,不断提升和完善系统方案以适应现代科技发展趋势。本文从音源传播有效距离、室内声音强度分布特点、频率响应的特点等方面进行论述,论证了提升室内应急广播系统的音质效果和覆盖效果的重要意义,并提出了合理完善的方案,通过科学布局平面扬声器,从而达到优化应急广播声音传播的空间格局、节省投资预算和维护成本的目的。At present,with the rapid technology development,products are being innovating.The construction of emergency broadcasting system should combine its own characteristics with requirements to adapt to the development trend of modern science and technology.This paper demonstrates the importance of acoustical effect and coverage effect of indoor emergency broadcasting system,and puts forward an optimized scheme of proper arrangement of flat-panel loudspeakers.

关 键 词：应急广播 平面扬声器 音质效果 覆盖效果 

分 类 号：TN932[电子电信—信号与信息处理]