单传声器实现声场空间特性测量的研究  

Research on measurement of special features of sound field using single microphone

作　　者：赵跃英[1] 盛胜我[1] 赵松龄[1] 

机构地区：[1]上海同济大学声学所,上海200092

出　　处：《声学技术》2007年第6期1205-1208,共4页Technical Acoustics

基　　金：国家自然科学基金(10574100)

摘　　要：提出了一种测量室内声场空间特性的方法,测量系统由一个可重复发射的声源配合装置在缓慢转动平台上的接收传声器组成。阐述了借助此测量系统进行入射脉冲空间分布的测量方法及典型的实验结果。实验表明,根据测量需求选择适当的空间计权因子,能够实现各种指向性传声器的等价测量,从而进一步获得反映声场空间特性的各种客观参量。A system for measuring space features of sound field is proposed. The system consists of a repeatable inspiriting sound source associated with a microphone fixed on a slowly rotating platform. The measurement method and typical experimental results of time and space distribution of sound impulses are demonstrated. It is shown that the measurement results after weighting are equivalent to those with all kinds of directional microphones. And various parameters of describing special properties of sound field can be obtained.

关 键 词：室内声学 方向性脉冲响应 声场空间特性 

分 类 号：O42[理学—声学]