Table 3.
Measures of Central Tendency, Full Monitoring Days: Men (N = 11)
| Measure | Total | Non-Sing | Choral* | Solo |
|---|---|---|---|---|
| Rec. Hrs. – Total | 42.54 | 37.35 | 3.66 | 1.98 |
| Voicing % | 13.07 | 9.28 | 38.30 | 36.89 |
| Dt – Total (min) | 335.55 | 208.06 | 84.01 | 43.86 |
| Dt -Per Hour (min) | 7.84 | 5.57 | 22.98 | 22.13 |
| Dc – Total (Kc) | 3475.61 | 2004.77 | 1006.50 | 520.17 |
| Dc - Per Hour (Kc) | 81.25 | 53.67 | 275.33 | 262.47 |
| Dd - Total (m) | 17914.26 | 10049.29 | 5068.46 | 3094.60 |
| Dd - Per Hour (m) | 418.76 | 269.05 | 1386.51 | 1561.49 |
| F0 Mean (Hz) | 171.56 | 157.36 | 191.18 | 188.47 |
| F0 Median (Hz) | 162.81 | 145.94 | 186.27 | 184.14 |
| F0 Mode (Hz) | 148.47 | 131.85 | 171.61 | 165.35 |
| F0 St Dev (Hz) | 53.42 | 53.03 | 54.81 | 55.29 |
| P0 Mean (Hz) | 174.19 | 156.39 | 196.04 | 194.25 |
| P0 Median (Hz) | 166.53 | 147.12 | 190.80 | 189.89 |
| P0 Mode (Hz) | 164.37 | 145.31 | 189.47 | 179.35 |
| P0 St Dev (Hz) | 48.90 | 46.13 | 50.71 | 54.99 |
| dB SPL Mean | 78.14 | 75.93 | 77.58 | 80.03 |
| dB SPL Median | 78.50 | 76.05 | 78.22 | 80.88 |
| dB SPL Mode | 78.86 | 76.10 | 79.05 | 81.87 |
| dB SPL St Dev | 5.50 | 5.21 | 5.55 | 6.26 |
| LTAS Slope (x100) | −0.61 | −0.58 | −0.68 | −0.72 |
| Alpha ratio | −23.76 | −23.18 | −24.73 | −24.62 |
| dB SPL 1–3 kHz | −58.17 | −58.07 | −58.65 | −56.99 |
| Pitch Strength M | 33.64 | 30.03 | 37.75 | 40.60 |
| Pitch Strength SD | 11.05 | 10.70 | 10.70 | 12.47 |
| Jitter | 0.032 | 0.038 | 0.023 | 0.023 |
| Shimmer | 0.123 | 0.137 | 0.112 | 0.099 |
| HNR | 12.11 | 9.83 | 13.73 | 15.08 |
Note. Only 9 of the 11 male participants participated in a choral rehearsal during the study period. The choral singing results represent the averages for only these 9 participants.