Title

Experimental determination of the acoustical effects of face masks on speech effort

Document Type

Conference Proceeding

Publication Date

1-1-2021

Abstract

The COVID-19 pandemic has led to a global trend in mask wearing. This study investigates how wearing face masks attenuate sound in the human speech range. Masks were equipped onto a test fixture to evaluate acoustic insertion loss over whole-octave bands important for vocal transmission. With the exception of face shield, tested masks showed less than 2 dB of insertion loss at frequencies less than 2 kHz and up to 5 dB of attenuation at frequencies above 2 kHz. The face shield showed insertion loss of more than 10 dB in the 4 and 8 kHz octave bands.

Publication Title

Proceedings of INTER-NOISE 2021 - 2021 International Congress and Exposition of Noise Control Engineering

ISBN

9781732598652

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