基于仿真试验的耦合空间音乐厅客观音质参数的多元方差分析

采用多元方差分析法,应用ODEON计算机仿真软件,针对一个理想的耦合空间音乐厅模型,对耦合空间音乐厅的客观音质参数进行较为系统的分析.分析过程包括以下四种典型的情况:耦合空间的开闭状态;耦合空间布置在不同的位置;不同的耦合开口面积;吸声特性不同的耦合空间内部界面材料.最后提出了一些具备一定应用价值的定性结论.

Multi-Variance Analysis for the Objective Acoustics Parameters in the Concert Hall with Coupled Rooms, Based on Computer Simulation

Compared to the ordinary types,the concert hall with coupled rooms has its acoustical characters.Because of their convenience on adjusting the reverberation of the auditorium,more and more concert halls with coupled rooms have been builtup.But the systemic acoustical principle of the hall has still not been founded.Consequently,by means of the multi-variance analysis,based on a systemic computer simulation experiment on the concert hall,a series of conclusions will be put forward in this paper,which is focus on the law of some objective acoustical parameters(reverberation,early delay time,etc.).The experiment will be divided into four stages as follows: find the difference of acoustical characters between the hall with coupled rooms and that of not;find the difference of acoustical characters among those halls with coupled rooms in different location;find the difference of acoustical characters among those halls with different materials on their coupled room surfaces;find the difference of acoustical characters among those halls with different size on their coupled surfaces.