Effect of Curvature Shape of Transparent COVID-19 Protective Face Shields on the Speech Signal

• Autorzy: Bjelić Miloš , Mijić Miomir , Miljković Tatjana , Šumarac Pavlović Dragana

Identyfikatory

DOI

10.24425/aoa.2024.148772

• Języki publikacji: EN

Abstrakty

EN

Recent papers and studies over the course of last three years have shown that COVID-19 has a negative impact on the speech communication quality between people. This paper presents an influence analysis of the curvature shape of protective transparent shields on the speech signal. Five shields made of the same material and dimensions but with different curvatures were analyzed, from a completely flat to a very curved shield which has the same shape of curvature at its top and bottom and covers the entire face. The influence of the shield is analyzed with two types of experiments – one using dummy head with integrated artificial voice device, and the other using real speakers (female and male actors). It has been shown that usage of protective shields results in a relative increase in the speech signal level, in the frequency range of around 1000 Hz, compared to the situation when protective shields are not used. The relative increase in speech signal levels for large-curvature shields can be up to 8 dB. The possible causes of this phenomenon have been analyzed and examined.

Słowa kluczowe

EN

acoustic effects; COVID-19; curvature; face shield; pandemic; protection; speech

• Wydawca: Instytut Podstawowych Problemów Techniki PAN ; Komitet Akustyki PAN ; Polskie Towarzystwo Akustyczne
• Czasopismo: Archives of Acoustics
• Rocznik: 2024
• Tom: Vol. 49, nr 1
• Strony: 27--35
• Opis fizyczny: Bibliogr. 28 poz., fot., rys., tab., wykr.

Twórcy

autor

Bjelić Miloš

• School of Electrical Engineering, University of Belgrade Belgrade, Serbia

• https://orcid.org/0000-0002-5859-1654

autor

Mijić Miomir

• School of Electrical Engineering, University of Belgrade Belgrade, Serbia

• https://orcid.org/0000-0002-3474-0897

autor

Miljković Tatjana

• School of Electrical Engineering, University of Belgrade Belgrade, Serbia;

• https://orcid.org/0000-0002-9160-0225

autor

Šumarac Pavlović Dragana

• School of Electrical Engineering, University of Belgrade Belgrade, Serbia;

• https://orcid.org/0000-0002-4173-8832+

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2024).