부록 1. 변성이전, 변성 및 변성이후 단계 남성의 음역대에 관한 선행연구 결과(가성구 포함)
| 저자(연도) | 연령(age) | 단계 | 대상자(명) | VRP 측정방법 | F0max(Hz) | F0min(Hz) | F0range(Hz) | Imax(dB) | Imin(dB) | Irange(dB) |
| Wuyts et al.(2003) | 6–7 | 변성이전 | 27 | 반음 | 741.0±29.0 | 194-6.1 age | 532.0±30.0 | 97.2±1.0 | 48.6±0.4 | 47.9±1.1 |
| 8–11 | 변성이전 | 26 | 반음 | 923.0±44.0 | 194-6.1 age | 740.0±44.0 | 101.7±0.9 | 48.6±0.4 | 53.8±1.0 |
| Moon & Han(2007) | 10–11 | 변성이전 | 5 | 반음 | 512.4±116.0 | 195.2±22.5 | 321.8±107.8 | 96.7±7.9 | 68.1±3.6 | 36.5±6.2 |
| Pribusinene et al.(2011) | 6–13 | 변성이전 | 31 | 반음 | 734.4±116.8 | 199.2±19.2 | | 81.1±7.2 | 48.2±1.4 | |
| Jung et al.(2019) | 22.9±2.1 | 변성이후 | 20 | 반음 | 727.2±183.1 | 86.2±4.8 | 641.0±179.6 | 112.8±5.9 | 65.3±3.8 | 47.5±6.1 |
| 축약 | 763.1±206.6 | 83.7±4.6 | 679.4±203.0 | 113.0±6.5 | 66.3±3.9 | 46.8±9.0 |
| 활창 | 635.4±195.4 | 88.68±4.8 | 546.8±194.8 | 104.0±10.1 | 72.3±4.4 | 31.8±8.9 |
| Hwang(2018) | 9–12 | 변성이전 | 10 | 반음 | 422.3±46.0 | 170.9±33.7 | 251.4±61.8 | 115.9±9.7 | 67.4±3.6 | 48.5±11.2 |
| 13–16 | 변성 | 10 | 반음 | 331.1±114.1 | 98.7±16.9 | 232.3±113.6 | 102.7±5.1 | 67.1±1.7 | 35.6±6.1 |
| 21–22 | 변성이후 | 10 | 반음 | 275.2±53.1 | 88.7±13.4 | 186.5±56.2 | 120.8±9.1 | 66.2±3.0 | 54.6±8.4 |
| Current(2021) | 8–13 | 변성이전 | 21 | 축약 | 633.0±188.3 | 198.3±24.0 | 434.6±188.7 | 97.5±7.9 | 64.9±5.1 | 32.7±7.2 |
| 11–16 | 변성 | 16 | 축약 | 423.3±154.8 | 129.9±29.5 | 293.5±145.7 | 97.0±6.0 | 63.7±5.2 | 33.3±6.0 |
| 15–24 | 변성이후 | 20 | 축약 | 539.2±115.8 | 94.0±11.5 | 445.2±115.0 | 105.5±6.4 | 61.3±5.8 | 44.2±6.3 |
| Current(2021) | 8–13 | 변성이전 | 21 | 활창 | 649.3±180.4 | 181.3±25.6 | 468.1±192.0 | 101.8±7.7 | 67.9±3.7 | 33.9±8.2 |
| 11–16 | 변성 | 16 | 활창 | 451.1±149.6 | 118.4±27.6 | 332.6±146.5 | 99.6±5.9 | 66.1±4.0 | 33.6±6.2 |
| 15–24 | 변성이후 | 20 | 활창 | 558.0±172.2 | 86.7±8.1 | 471.3±172.3 | 107.3±5.9 | 67.8±4.6 | 39.6±5.0 |
VRP, voice range profile.