对厅堂混响时间设计偏差的探讨

Looking into the Errors of Reverberation Time Design in Hall

试图探讨观众厅音质设计中混响时间设计值偏差过大的问题通过对多功能厅堂混响时间特性的测试分析，提出了当厅堂内采用轻质吊顶或其它隔声量很低的围护结构时，应考虑透射声能的衰减用表观吸声系数取代材料标准吸声系数。

We try to discuss the cause more designing errors of reverberation time in phonic design in great hall.By means of the experiment and the analysis of the reverberation in multi-purpose hall.We should consider the decay of sound radiation.When we use light top or other walls of acoustical impedance in hall.Using the surface absorption coefficient,we can get the simple means of measuring resonance frequency of light plates.