Objective evaluation of interior trim effects on sound quality and noise reduction of a coupled plate cavity system

Laith Egab; Xu Wang

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Objective evaluation of interior trim effects on sound quality and noise reduction of a coupled plate cavity system

机译：客观评估内饰对耦合板腔系统声音质量和降噪的影响

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摘要

In this study, the impedance mobility and psychoacoustic analysis methods are combined to develop a structural-acoustic model of a plate-cavity coupling system. The objective is to evaluate the effect of interior trim materials on sound loudness and sharpness of a plate-cavity coupling system. The impedance mobility method is applied to calculate the pressure frequency responses of the interior acoustic field for the plate-cavity coupling system. The sound pressure results calculated by the impedance mobility method are then directly used to calculate the psychoacoustic metrics using psychoacoustic analysis method. A good agreement was found between the experimental and analytical results. The results show that the interior trim has a large influence on the distribution of the sound loudness and sharpness inside the cavity in the middle and high frequency ranges.

机译：在这项研究中，阻抗迁移率和心理声学分析方法相结合，以开发板腔耦合系统的结构声学模型。目的是评估内部装饰材料对板腔耦合系统的声音响度和清晰度的影响。阻抗迁移率法用于计算板腔耦合系统内部声场的压力频率响应。然后，通过心理声学分析方法，将通过阻抗迁移率方法计算出的声压结果直接用于计算心理声学指标。实验和分析结果之间找到了很好的协议。结果表明，在中高频范围内，内饰对腔内声音响度和清晰度的分布影响很大。

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《Mechanical systems and signal processing》 |2016年第3期|919-931|共13页
作者
Laith Egab; Xu Wang;
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作者单位

School of Aerospace, Mechanical and Manufacturing Engineering, RMIT University, Australia;

School of Aerospace, Mechanical and Manufacturing Engineering, RMIT University, Australia;

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正文语种 eng
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关键词
Objective evaluation; Interior trim; Sound quality; Noise reduction; Plate cavity system; Vibro-acoustic coupling;

机译：客观评价;内部装饰;音质降噪;板腔系统;振动声耦合;

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Objective evaluation of interior trim effects on sound quality and noise reduction of a coupled plate cavity system

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