Table 7 Comparison between the measures of voice parameters with a face mask and without a face mask in male participants
From: The effect of wearing face masks on voice and intelligibility of speech during the COVID-19 pandemic
Male | With face mask | Without face mask | P value | ||
|---|---|---|---|---|---|
Mean | SD | Mean | SD | ||
Absolute jitter | 64.91 | 29.61 | 63.84 | 38.52 | 0.870 |
Shimmer in dB | 0.32 | 0.20 | 0.29 | 0.16 | 0.090 |
Noise to harmonic ratio (N/H ratio) | 0.14 | 0.02 | 0.13 | 0.03 | 0.001* |
Mean fundamental frequency (MFF) | 118.13 | 18.32 | 116.81 | 19.25 | 0.134 |
Maximum phonation time (MPT) | 17.75 | 6.03 | 18.18 | 5.79 | 0.060 |