How much COVID-19 face protections influence speech intelligibility in classrooms?
How much COVID-19 face protections influence speech intelligibility in classrooms?
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DOI：
10.1016/j.apacoust.2021.108051
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发表时间：
2021-07
期刊：
影响因子：
--
通讯作者：
中科院分区：
文献类型：
--
作者：
COVID-19病毒引起的持续大流行对日常生活的许多方面构成挑战。一些个人防护设备已成为我们生活中必不可少的。面部保护主要是为了阻止空气气溶胶从我们的嘴里出来。然而，这一事实也可能对室外和室内空间中的语音传输产生负面影响。经过严格的封锁，现在又开始上课了。建议或强制教师采取面部保护措施，即使这会影响语言清晰度，从而影响学生的理解力。本研究旨在了解保护措施如何影响课堂上的言语传播，以及面部保护措施的几种类型如何影响课堂上的言语传播。在两种不同混响条件下的教室中进行了实验活动，测量并比较了不同接收器位置处的语音传输和声压级的变化。此外，麦克风阵列被用来调查的室内声场的分布，取决于声源。结果清楚地显示了不同类型的个人防护设备如何影响语音传输和声压级，特别是在中高频，以及当佩戴某些类型的个人设备时，源发射波瓣会发生变化。
The ongoing pandemic caused by the COVID-19 virus is challenging many aspects of daily life. Several personal protective devices have become essential in our lives. Face protections are mostly used in order to stop the air aerosol coming out of our mouths. Nevertheless, this fact may also have a negative effect on speech transmission both in outdoor and indoor spaces. After a severe lockdown, classes have now started again. The adoption of face protection by teachers is either recommended or mandatory even though this is affecting speech intelligibility and thus students’ comprehension. This study aims to understand how protections may affect the speech transmission in classrooms and how this could be influenced by the several typologies of face protections. An experimental campaign was conducted in a classroom in two different reverberant conditions, measuring and comparing the variation in speech transmission and sound pressure level at different receiver positions. Furthermore, a microphone array was used to investigate the distribution of the indoor sound field, depending on the sound source. Results clearly show how different types of personal protection equipment do affect speech transmission and sound pressure level especially at mid-high frequency and that the source emission lobes vary when wearing certain types of personal devices.
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影响因子：
3.8
作者：
Carbon CC
通讯作者：
Carbon CC
影响因子：
1.2
作者：
Aranaz Andres, Jesus M.;Velazquez de Castro, M. Teresa Gea;Bischofberger Valdes, Cornelia
通讯作者：
Bischofberger Valdes, Cornelia
影响因子：
3.4
作者：
Astolfi, Arianna;Corrado, Vincenzo;Griginis, Alessia
通讯作者：
Griginis, Alessia
影响因子：
3.4
作者：
Bradley, JS;Reich, R;Norcross, SG
通讯作者：
Norcross, SG
DOI：
10.1016/j.jhin.2013.06.020
发表时间：
2013-11
期刊：
The Journal of hospital infection
影响因子：
--
作者：
Coia JE;Ritchie L;Adisesh A;Makison Booth C;Bradley C;Bunyan D;Carson G;Fry C;Hoffman P;Jenkins D;Phin N;Taylor B;Nguyen-Van-Tam JS;Zuckerman M;Healthcare Infection Society Working Group on Respiratory and Facial Protection
通讯作者：
Healthcare Infection Society Working Group on Respiratory and Facial Protection