Calculation of Loudspeaker Cabinet Diffraction and Correction  

作　　者：LE Yi SHEN Yong XIA Jie 乐意;沈勇;夏洁(Laboratory of Modern Acoustics and Institute of Acoustics,Nanjing University,Nanjing 210093)

机构地区：[1]Laboratory of Modern Acoustics and Institute of Acoustics,Nanjing University,Nanjing 210093

出　　处：《Chinese Physics Letters》2011年第10期142-145,共4页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant No(10774075).

摘　　要：A method of calculating the cabinet edge diffractions for loudspeaker driver when mounted in an enclosure is proposed,based on the extended Biot–Tolstoy–Medwin model.Up to the third order,cabinet diffractions are discussed in detail and the diffractive effects on the radiated sound field of the loudspeaker system are quantitatively described,with a correction function built to compensate for the diffractive interference.The method is applied to a practical loudspeaker enclosure that has rectangular facets.The diffractive effects of the cabinet on the forward sound radiation are investigated and predictions of the calculations show quite good agreements with experimental measurements.

关 键 词：mounted CORRECTION CALCULATING 

分 类 号：O43[机械工程—光学工程]