TABLE 4.
GENERAL AMERICAN AND R.P. MEAN VOWEL FORMANT FREQUENCIES COMPARED
(All values in cycles per second, to the nearest 10 cps)
| Formant one | Formant two | Formant three | ||||
|---|---|---|---|---|---|---|
| RP | Gn.Am. | RP | Gn.Am. | RP | Gn.Am. | |
| /i/ | 290 | 270 | 2370 | 2290 | 3090 | 3010 |
| /I/ | 360 | 390 | 2100 | 1990 | 2700 | 2550 |
| /E/ | 570 | 530 | 1970 | 1840 | 2640 | 2480 |
| /æ/ | 750 | 660 | 1750 | 1720 | 2460 | 2410 |
| /A/ | 680 | 730 | 1080 | 1090 | 2540 | 2440 |
| /Q/ | 600 | - | 890 | - | 2610 | - |
| /O/ | 450 | 570 | 740 | 840 | 2640 | 2410 |
| /U/ | 380 | 440 | 930 | 1020 | 2440 | 2240 |
| /u/ | 310 | 300 | 940 | 870 | 2320 | 2240 |
| /V/ | 720 | 640 | 1240 | 1190 | 2540 | 2390 |
| /3/(/3`/) | 580 | 490 | 1380 | 1350 | 2440 | 1690 |