Table 1.
Mean F1 and F2 frequencies (hertz) for each subject shown for each vowel and head orientation
| Vowel | Orientation | Subject 1 | Subject 2 | Subject 3 | Subject 4 | Subject 5 | Subject 6 | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| F1 | F2 | F1 | F2 | F1 | F2 | F1 | F2 | F1 | F2 | F1 | F2 | ||
| A | Upright | 915.4 | 1926.5 | 703.9 | 1535.3 | 821.3 | 1568.8 | 854.0 | 1555.6 | 675.0 | 1502.8 | 799.7 | 1625.5 |
| (7.38) | (16.16) | (5.76) | (7.24) | (13.04) | (9.93) | (12.03) | (7.35) | (5.69) | (13.12) | (6.51) | (14.03) | ||
| Supine | 855.1 | 1991.6 | 688.1 | 1547.8 | 796.1 | 1664.7 | 821.9 | 1551.4 | 692.0 | 1462.8 | 751.0 | 1632.1 | |
| (7.59) | (16.44) | (3.65) | (7.33) | (11.79) | (9.65) | (8.74) | (7.42) | (6.25) | (11.42) | (6.16) | (11.00) | ||
| Prone | 875.8 | 2070.6 | 645.7 | 1556.2 | 757.4 | 1646.0 | 809.3 | 1572.6 | 681.4 | 1506.2 | 662.2 | 1656.8 | |
| (10.69) | (24.08) | (2.98) | (5.63) | (9.84) | (14.52) | (13.44) | (9.37) | (7.62) | (8.31) | (8.34) | (11.92) | ||
| E | Upright | 712.1 | 2105.6 | 599.9 | 1653.6 | 642.1 | 1790.3 | 619.0 | 1736.9 | 560.4 | 1502.4 | 634.0 | 1922.5 |
| (5.28) | (24.33) | (8.36) | (11.35) | (8.16) | (7.52) | (10.49) | (7.16) | (5.09) | (10.16) | (6.13) | (19.54) | ||
| Supine | 700.0 | 2117.3 | 583.0 | 1620.8 | 649.4 | 1847.3 | 617.3 | 1772.6 | 556.1 | 1505.8 | 590.0 | 1941.5 | |
| (4.26) | (28.72) | (6.32) | (8.63) | (9.90) | (10.09) | (8.88) | (7.36) | (6.01) | (11.67) | (4.50) | (24.61) | ||
| Prone | 695.4 | 2184.1 | 554.0 | 1663.4 | 592.8 | 1849.9 | 602.3 | 1786.2 | 538.6 | 1539.7 | 510.0 | 1846.4 | |
| (4.33) | (25.41) | (5.48) | (11.26) | (8.00) | (10.27) | (12.52) | (9.45) | (5.38) | (11.78) | (8.07) | (23.26) | ||
SE is shown in parentheses. Subject 1 is female; the remainder are male.