Effects of face masks on acoustic analysis and speech perception : Implications for peri-pandemic protocols
Wearing face masks (alongside physical distancing) provides some protection against infection from COVID-19. Face masks can also change how people communicate and subsequently affect speech signal quality. This study investigated how three common face mask types (N95, surgical, and cloth) affected acoustic analysis of speech and perceived intelligibility in healthy subjects. Acoustic measures of timing, frequency, perturbation, and power spectral density were measured. Speech intelligibility and word and sentence accuracy were also examined using the Assessment of Intelligibility of Dysarthric Speech. Mask type impacted the power distribution in frequencies above 3 kHz for the N95 mask, and above 5 kHz in surgical and cloth masks. Measures of timing and spectral tilt mainly differed with N95 mask use. Cepstral and harmonics to noise ratios remained unchanged across mask type. No differences were observed across conditions for word or sentence intelligibility measures; however, accuracy of word and sentence translations were affected by all masks. Data presented in this study show that face masks change the speech signal, but some specific acoustic features remain largely unaffected (e.g., measures of voice quality) irrespective of mask type. Outcomes have bearing on how future speech studies are run when personal protective equipment is worn.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2020 |
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| Erschienen: |
2020 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:148 |
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| Enthalten in: |
The Journal of the Acoustical Society of America - 148(2020), 6 vom: 31. Dez., Seite 3562 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Magee, Michelle [VerfasserIn] |
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| Links: |
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| Anmerkungen: |
Date Completed 07.01.2021 Date Revised 06.02.2021 published: Print Citation Status MEDLINE |
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| doi: |
10.1121/10.0002873 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| 520 | |a Wearing face masks (alongside physical distancing) provides some protection against infection from COVID-19. Face masks can also change how people communicate and subsequently affect speech signal quality. This study investigated how three common face mask types (N95, surgical, and cloth) affected acoustic analysis of speech and perceived intelligibility in healthy subjects. Acoustic measures of timing, frequency, perturbation, and power spectral density were measured. Speech intelligibility and word and sentence accuracy were also examined using the Assessment of Intelligibility of Dysarthric Speech. Mask type impacted the power distribution in frequencies above 3 kHz for the N95 mask, and above 5 kHz in surgical and cloth masks. Measures of timing and spectral tilt mainly differed with N95 mask use. Cepstral and harmonics to noise ratios remained unchanged across mask type. No differences were observed across conditions for word or sentence intelligibility measures; however, accuracy of word and sentence translations were affected by all masks. Data presented in this study show that face masks change the speech signal, but some specific acoustic features remain largely unaffected (e.g., measures of voice quality) irrespective of mask type. Outcomes have bearing on how future speech studies are run when personal protective equipment is worn | ||
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| 700 | 1 | |a Noffs, Gustavo |e verfasserin |4 aut | |
| 700 | 1 | |a Reece, Hannah |e verfasserin |4 aut | |
| 700 | 1 | |a Chan, Jess C S |e verfasserin |4 aut | |
| 700 | 1 | |a Zaga, Charissa J |e verfasserin |4 aut | |
| 700 | 1 | |a Paynter, Camille |e verfasserin |4 aut | |
| 700 | 1 | |a Birchall, Olga |e verfasserin |4 aut | |
| 700 | 1 | |a Rojas Azocar, Sandra |e verfasserin |4 aut | |
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| 700 | 1 | |a Caverlé, Marja W |e verfasserin |4 aut | |
| 700 | 1 | |a Schultz, Benjamin G |e verfasserin |4 aut | |
| 700 | 1 | |a Vogel, Adam P |e verfasserin |4 aut | |
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