A Uniform SPL Distribution Method of Linear Phased Loudspeaker Array Using Genetic Algorithm

摘要：

　　Directivity of traditional linear loudspeaker arrays leads to a nonuniform distribution of the sound pressure level (SPL) in a listening area.This paper presents a novel scheme using linear phased loudspeaker array to uniform the distribution and let more listeners have the same perception.By designing a specific directivity pattern and obtaining the phase weighs of the excitation using the genetic algorithm so as to accurately control the pattern details,uniform distribution of SPL in a linear listening area is achieved.The experimental result shows that the SPLs on the listening test line range from 83dB to 83.7dB and are basically uniform,demonstrating that the scheme proposal is reasonable and effective.

关键词： uniform distribution linear phased loudspeaker array SPL genetic algorithm

作者: Zhaoxin Huang Sai Ma Hui Wang Chuanzhen Li

作者单位: School of Information Engineering Communication University of China Beijing, China

会议类型: 国际会议

会议名称: 2012 IEEE 14th International Conference on Communication Technology(2012年第十四届通信技术国际会议(ICCT 2012))

会议地点: 成都

会议语种:英文

页码: 1045-1049

在线出版日期: 2012-11-09（万方平台首次上网日期，不代表论文的发表时间）