Acoustic Effect of Face Mask Design and Material Choice

IF 1.7 4区 物理与天体物理
B. T. Balamurali, Tan Enyi, Christopher Johann Clarke, Sim Yuh Harn, Jer-Ming Chen
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引用次数: 11

Abstract

The widespread adoption of face masks is now a standard public health response to the 2020 pandemic. Although studies have shown that wearing a face mask interferes with speech and intelligibility, relating the acoustic response of the mask to design parameters such as fabric choice, number of layers and mask geometry is not well understood. Using a dummy head mounted with a loudspeaker at its mouth generating a broadband signal, we report the acoustic response associated with 10 different masks (different material/design) and the effect of material layers; a small number of masks were found to be almost acoustically transparent (minimal losses). While different mask material and design result in different frequency responses, we find that material selection has somewhat greater influence on transmission characteristics than mask design or geometry choices.

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面罩设计与材料选择的声学效果
现在,广泛采用口罩是应对2020年大流行的标准公共卫生措施。尽管研究表明,戴口罩会干扰语音和可理解性,但口罩的声学响应与设计参数(如面料选择、层数和口罩几何形状)之间的关系尚不清楚。使用一个假头,在其口部安装一个扬声器,产生宽带信号,我们报告了与10种不同掩模(不同的材料/设计)相关的声学响应以及材料层的影响;发现少数口罩几乎是声学透明的(损失最小)。虽然不同的掩模材料和设计导致不同的频率响应,但我们发现材料选择比掩模设计或几何形状选择对传输特性的影响更大。
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来源期刊
Acoustics Australia
Acoustics Australia ACOUSTICS-
自引率
5.90%
发文量
24
期刊介绍: Acoustics Australia, the journal of the Australian Acoustical Society, has been publishing high quality research and technical papers in all areas of acoustics since commencement in 1972. The target audience for the journal includes both researchers and practitioners. It aims to publish papers and technical notes that are relevant to current acoustics and of interest to members of the Society. These include but are not limited to: Architectural and Building Acoustics, Environmental Noise, Underwater Acoustics, Engineering Noise and Vibration Control, Occupational Noise Management, Hearing, Musical Acoustics.
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