基于角部吸声体的教室声环境优化研究与实践  

Optimization Study and Practice of Classroom Acoustic based on the Corner Sound Absorber

作　　者：胡亦川 张三明[1] 

机构地区：[1]浙江大学建筑工程学院

出　　处：《建筑与文化》2023年第3期19-21,共3页Architecture & Culture

摘　　要：教室声环境直接关系教学效果,且教室数量巨大。文章从教室声场结构与吸声频率特性的视角,采用能够灵活使用的角部吸声体来改善教室声环境。将角部吸声体布置于普通教室之内,测量改善前后的教室声环境状况,对比研究发现,不论是教室内的混响时间,还是各点的语言清晰度,都有着显著的提升。实践表明角部吸声体能够在投入很少、安装简便、对教室几乎没有任何影响的情况下,获得较大的声环境改善,为教室声环境的优化提供一种可行的解决方法。Classroom acoustic is directly related to the teaching effect,and the number of classrooms is huge.In this paper,the corner sound absorber which can be flexibly used in classroom is designed from the perspective of sound field structure and spectrum characteristics of classroom acoustic.The corner sound absorber was arranged in the ordinary classroom,and the classroom acoustic was measured before and after the improvement.The comparative study found that both the reverberation time and the speech intelligibility at each point in the classroom had been significantly improved.The practice shows that the corner sound absorber can improve the acoustic environment greatly with little investment,easy installation and almost no impact on the classroom,which provides a feasible solution for the optimization of the acoustic environment in the classroom.

关 键 词：教室声环境 角部吸声体 混响时间 语言清晰度 

分 类 号：TU244[建筑科学—建筑设计及理论] TU112