| 音频强声系统的设计与实现 |
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| 引用本文： | 陈克安,;汪嵩,;刘玲,;许妍妍.音频强声系统的设计与实现[J].电声技术,2014(7):27-31. |
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| 作者姓名： | 陈克安 ;汪嵩 ;刘玲 ;许妍妍 |
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| 作者单位： | [1]西北工业大学航海学院,陕西西安710072; [2]陕西烽火宏声科技有限责任公司,陕西宝鸡721006 |
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| 摘 要： | 研究目的是设计和实现一套音频强声系统,用于输出高强度噪声和语音,用于强声拒止和远距离语音传输。首先,基于声学理论知识和阵列波束形成基本原理,运用有限元和边界元方法进行声学仿真,设计扬声器基阵阵型;其次,基于声学仿真结果对音频强声系统加以实现,在全消声室环境测试系统辐射指向性,对比声学仿真和测试结果并得出结论;最后,使用音频强声系统进行躁怒度主观评价实验,研究人群对音频强声系统辐射声场的躁怒度评价及影响评价的因素。
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| 关 键 词： | 音频强声系统 扬声器基阵 声学仿真 指向性 |
Design and Implementation of Strong Sound Audio System |
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| Affiliation: | CHEN Ke＇ an1 , WANG Song , LIU Ling2, XU Yanyan2 ( 1. School of Marine Technology, Northwestern Polytechnical University, Xi＇ an 710072, China; 2. Shanxi Fenghuo Hongsheng Science ＆ Technology Co. ,Ltd., Baoji Shaanxi 721006, China) |
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| Abstract: | The purpose of this study is to design and implement a strong sound audio system,which is used for outputting high intensity noise and voice,and strong sound denial and long- distance voice transmission. First based on the acoustical theory and basic principles of the array beamforming,FEM and BEM measures to execute acoustical simulation and design the speaker array are used. Then a system based on the acoustical simulation results,test the radiation directivity of the system in an anechoic chamber,and compare the acoustical simulations and test results are implemented. Finally the system to carry out subjective evaluation experiments for restive degree is used. |
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| Keywords: | strong sound audio system speaker array acoustical simulation directivity |
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