吸音棉对扬声器频响曲线的影响  

Effect of Sound Absorbing Cotton on the Frequency Response Curve of Loudspeaker

作　　者：张夏祥 ZHANG Xiaxiang(Anhui Zhibo Optoelectronics Technology Co.,Ltd.,Hefei 230000,China)

机构地区：[1]安徽至博光电科技股份有限公司,合肥230000

出　　处：《机械工程师》2023年第4期123-125,共3页Mechanical Engineer

摘　　要：扬声器频响曲线的平坦性是衡量其品质的关键指标,平坦性决定着声音重放的效果。文中通过有限元模拟和实验验证相结合的方法对某款扬声器后腔体中局部位置有无吸音棉来研究吸音棉对扬声器频响曲线的影响。有限元模拟和实验结果具有良好的一致性,研究结果表明,可以通过吸音棉在扬声器腔体中合理的布置,提高扬声器频响曲线的平坦性,进而提高重放声音的品质。The flatness of the frequency response curve of a loudspeaker is a key indicator to measure its quality,and the flatness determines the effect of sound reproduction.In this paper,the influence of sound-absorbing cotton on the frequency response curve of the speaker is studied by the method of combining finite element simulation and experimental verification to determine whether there is sound-absorbing cotton in the local position of the rear cavity of a certain loudspeaker.The finite element simulation and test results are in good agreement.The research results show that the sound-absorbing cotton can be reasonably arranged in the speaker cavity to improve the flatness of the frequency response curve of the speaker,thereby improving the quality of the reproduced sound.

关 键 词：扬声器 频响曲线 平坦性 吸音棉 有限元方法 

分 类 号：TN643[电子电信—电路与系统]