体育训练馆声学特性分析

Analysis of Acoustic Features of a Gymnasium

现代体育训练馆设计超越了固有的功能,且有很大的扩展.以陕西师范大学训练馆为例,合理地利用顶棚空间,设计了中低频吸声结构.在玻璃顶棚下均布了空间吸声体,得到较合理的混响时间.通过猝发声实验,没有发现颤动回声现象.在主声场区采用线阵列音响,四周均布高保真音箱,获得了均匀的扩声声场,满足了多功能使用要求.在建筑装饰设计方面简洁、大方.

The design of modern gymnasium is beyond the inherent design functions,and to some degree it even expands a lot.For example,in the design of the gymnasium of Shaanxi Normal University,roof space is reasonably made full use of to design a mid-low frequency sound absorption structure.The sound absorbers distribute in the glass ceiling space to gain more exact reverberation time.In the tests of bursts of sound,no flutter echo phenomenon is found.The use of line-arrayed sound in the main sound field,surrounded by uniform high-fidelity speakers,ensures a uniform expanded sound field,so as to meet the requirements of the multifunctional use.At the same time,its architectural design is simple and tasteful.