多功能厅仿真与分析

Simultion and Analysis of Multi-function Hall

利用声学仿真软件EASE4.4对厅堂进行建模仿真,该模型的基础混响时间为1.24 s。将原有模型的耳室作为耦合空间,并在模型中设计加入6个旋转吸声体,模拟得到两个极限状态下混响时间分别为1.01 s和1.22 s,并且对比分析了两种状态下其他声学参数,如:总声压级(TSPL)、直达声声压级(DSPL)、平均声能比(C7)、语言可懂度(C50)等。验证了利用耦合空间和旋转吸声体可实现厅堂的多功能性。

EASE4.4,an acoustic simulation software,was used to conduct modeling and simulation of the hall,so that the basic reverberation time of the model was 1.24s.By taking the ear chamber of the original model as the coupling space and adding 6 rotating sound absorbent into the model,the reverberation time in the two limit states is 1.01s and 1.22s,respectively.The other acoustic parameters of the two states,such as total sound pressure level(TSPL),direct sound pressure level(DSPL),average sound energy ratio(C7),language intelligibility(C50),are compared and analyzed.It is verified that the multi-function of the hall can be realized by using coupling space and rotating sound absorber.