Alberts W C Kirkpatrick, Noble John M, Coleman Mark A
US Army Research Laboratory, Adelphi, Maryland 20783, USA.
J Acoust Soc Am. 2008 Aug;124(2):733-42. doi: 10.1121/1.2945151.
Recently, the study of acoustics in urban terrain has been concerned with the propagation of sound through street canyons typical of residential areas in large cities, while sparsely built suburban and rural areas have received little attention. An isolated building's effect on propagating sound is a fundamental case of suburban acoustics and urban acoustics in general. Its study is a necessity in order to determine the processes that might be required to model the sound field in the building's vicinity, e.g., diffraction and wind effects. The work herein presents the results of an experimental effort to characterize the interaction between propagating sound and a single story, gabled-roof building typical of some North American suburban and rural areas. Recorded data are found to reasonably compare to a common diffraction model in some instances.
最近,城市地形中的声学研究主要关注声音在大城市居民区典型的街道峡谷中的传播,而建设稀疏的郊区和农村地区则很少受到关注。孤立建筑物对声音传播的影响是郊区声学乃至城市声学的一个基本案例。对其进行研究对于确定模拟建筑物附近声场可能需要的过程(例如衍射和风的影响)是必要的。本文介绍了一项实验工作的结果,该实验旨在描述传播的声音与北美一些郊区和农村地区典型的单层山墙屋顶建筑物之间的相互作用。在某些情况下,发现记录的数据与一个常见的衍射模型相当吻合。