| Mask only | No mask | ||
---|---|---|---|---|
 | Mean | SD | Mean | SD |
Low frequencies (dB) | 77.20 | 5.07 | 76.82 | 4.04 |
High frequencies (dB) | 36.24 | 5.53 | 38.78 | 4.82 |
Low/high ratio (dB) | 40.96 | 4.39 | 38.04 | 4.82 |
Duration (s) | 19.63 | 9.32 | 20.33 | 9.78 |
F0 (Hz) | 189.60 | 43.93 | 184.32 | 45.24 |
Shimmer (%) | 0.04 | 0.01 | 0.04 | 0.01 |
Jitter (%) | 0.004 | 0.001 | 0.004 | 0.002 |
HNRÂ (dB) | 22.26 | 3.14 | 21.01 | 2.70 |
 | Female speakers | Male speakers | ||
---|---|---|---|---|
F0 (Hz) | 209.30 | 24.51 | 124.39 | 16.71 |