国内大剧院混响时间及相关参量特性分析  

Analysis of the reverberation time of grand theatre in China

作　　者：文立森 WEN Lisen(Acoustical and Theater Design&Research Studio,East China Architectural Design&Research Institute Co.,LTD,Shanghai 200070,China)

机构地区：[1]华东建筑设计研究院有限公司声学及剧院专项设计研究所,上海200070

出　　处：《声学技术》2021年第3期381-384,共4页Technical Acoustics

摘　　要：近20年来国内建成了大量的剧院,对于这些剧院整体上的混响时间特性规律,目前国内仍缺乏类似相关的研究。文章统计了国内50个1200座以上的典型大剧院,根据实测数据分析了国内剧院混响时间的大小分布及混响时间与早期衰变时间、清晰度与明晰度、观众厅体积等参数的相关性规律;研究发现国内大剧院混响时间较世界上同等规模的国外歌剧院的推荐值略低,混响时间普遍大于早期衰变时间,清晰度与明晰度随混响时间的增大而减小且变化幅度明显,国内声学设计师通过体积与吸声量同步控制混响时间,导致混响时间大小并不因观众厅的体积及每座容积而表现出明显的变化规律。研究结果为国内大剧院的建筑声学设计优化提供了参考。A large number of theatres have been built in China in the past two decades.There is still lack of similar re-searches on reverberation time characteristic of these theatres.In this paper,50 typical grand theaters with more than 1200 seats in China are selected.Based on the measured data,the reverberation time distribution and the correlation of reverberation time with early decay time,clarity,definition and audience volume of the auditorium are analyzed.It is found that the reverberation time of grand theatres in China is shorter than that of foreign opera houses with the same size in the world;the reverberation time is generally longer than early decay time;clarity and definition decreases with the increase of the reverberation time,and the degree of change is obvious;domestic acoustic designers meet the indi-cators of reverberation time by controlling the volume and sound absorption simultaneously,however,the reverberation time does not show significant changes with the volume of auditorium.This paper could provide a reference for the architectural acoustic design of the grand theater in China.

关 键 词：混响时间 大剧院 建筑声学参量 

分 类 号：TU112[建筑科学—建筑理论]