为研究某大学教室的混响情况,选取了18个教室作为研究对象,对其混响时间做了测量。结果显示,无论是新教室还是旧教室其混响时间均大于1s,都超过了中国有关标准对教室混响时间限值的要求,可能在一定程度上影响教学效果。在此基础上使用标准的推荐值计算了改造的目标吸声系数,为下一步教室声学改造提供依据。影响教室混响时间过长的原因是多方面的,建议随着中国社会经济的发展,教室的声学设计应在教室的建设中予以优先考虑。%In order to study the reverberation time in a university classrooms, eighteen classrooms were selected as research subjects to measure the reverberation time. The results show that the reverberation time was beyond one second in each of the se- lected classroom, which exceeds the limit requirements of the standard in China. The target absorption coefficient was calculated by using the recommended reverberation time, providing the basis for follow - up classroom acoustics reconstruction. With the de- velopment of the economy, the acoustic design of classrooms should be considered in the process of classroom construction.
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