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To assess the effects of the longterm-use of surgical face mask (SFM) on acoustic and auditory-perceptual voice parameters in normophonic subjects without any known risk factor related to voice disorders.

Of 73 normophonic subjects who were previously included in a couple of studies before the COVID-19 outbreak, 25 people (18 female and 7 male) who were free of any known risk factor related to voice disorders during the outbreak were re-evaluated to assess the long-term effect of SFM on voice by using acoustic (mean F0, Jitter-local, Shimmer-local, Cepstral Peak Prominence (CPP), Noise to Harmonic Ratio (NHR), maximum phonation time (MPT)) and auditory-perceptual (Consensus Auditory-Perceptual Evaluation of Voice (CAPE-V)) parameters and those data found in SFM period were compared with the previous (preSFM) data. MPT and acoustic data were analyzed by …