摘要
通过对实际教室混响时间理论研究及数值计算表明,学生人数对教室内混响时间的影响非常大而均匀,尤其在低频与中频部分,空场与满场混响时间相差较大.在高频部分,学生人数对混响时间的影响相对较小.针对这一情况提出了改进方案,并收到了很好的效果.
The classroom acoustic environments in our country are generally poor.The longer reverberation time in classroom is the major problem.The study efficiency of student can be affect by the longer reverberation time.The quantity of students,the space structure of classroom and sound absorption coefficient of material have relationship with the reverberation time.The result of reverberation time show that the quantity of students have the biggest and event impact on the reverberation time,especially on low frequency and have little influence on high frequency.There are great differences between the empty classroom and fully classroom.Some improvements have made according to such phenomenon.
出处
《哈尔滨商业大学学报（自然科学版）》
CAS
2010年第1期77-80,共4页
Journal of Harbin University of Commerce：Natural Sciences Edition
关键词
阶梯教室
混响时间
吸声系数
classroom
reverberation time
sound absorption coefficient
