Acoustic effects of medical, cloth, and transparent face masks on speech signals.

Acoustic effects of medical, cloth, and transparent face masks on speech signals.
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医疗,布和透明面具对语音信号的声学影响。

DOI:
10.1121/10.0002279
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发表时间:
2020-10
期刊:
The Journal of the Acoustical Society of America
影响因子:
--
通讯作者:
Singer AC
Singer AC
中科院分区:
其他
文献类型:
--
作者:
Corey RM;Jones U;Singer AC

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戴口罩会妨碍说话,使交流更加困难,尤其是对听力损失的人。本研究使用一个头状扬声器和一个真人谈话者,研究了不同口罩(包括医用口罩、布口罩和透明口罩)引起的声衰减。结果表明,所有的面具衰减频率超过1千赫,衰减是最大的前面的谈话者,有很大的变化之间的面具类型,特别是布面具与不同的材料和编织。与医用口罩和布口罩相比,透明口罩的声学性能较差。大多数面具对翻领麦克风的影响很小,这表明现有的声音增强和辅助听力系统可能对面具的口头交流有效。
Face masks muffle speech and make communication more difficult, especially for people with hearing loss. This study examines the acoustic attenuation caused by different face masks, including medical, cloth, and transparent masks, using a head-shaped loudspeaker and a live human talker. The results suggest that all masks attenuate frequencies above 1 kHz, that attenuation is greatest in front of the talker, and that there is substantial variation between mask types, especially cloth masks with different materials and weaves. Transparent masks have poor acoustic performance compared to both medical and cloth masks. Most masks have little effect on lapel microphones, suggesting that existing sound reinforcement and assistive listening systems may be effective for verbal communication with masks.
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