我国亚热带地区中小学校教室声环境分析

Study on Acoustic Condition of Primary and Secondary School Classrooms in Subtropical Region of China

针对亚热带地区14所小学、初中和高中学校普通教室,开展声环境调研和测试工作。对教室室内声学参量、授课时段总声级、教师授课声级及满场噪声级进行测试,了解中小学校教室声环境现状。结果表明,教室空场声学参量与建筑参数显著相关,且教室空场声环境影响满场时的授课噪声级。为保证教室良好的语言清晰度,在教室设计阶段应合理控制每座容积。

A survey on the acoustic condition of 14 primary and secondary school classrooms in subtropical region was carried out.Room acoustic parameters,total sound level during teaching periods,tearcher's sound level and occupied noise level were measured to evaluate the acoustic environment of primary and secondary school class-rooms.The result shows that unoccupied acoustic parameters is significantly related to building parameters,and unoccupied acoustic conditions affect the noise levels during teaching periods.To get good speech intelligibility,the volume per seat needs to be controlled when building the classroom.