Wells, A study of the formants of the pure vowels of British English

Table 1

[SAMPA] [Unicode]

Summary of results

Mean values

Vowel and keywordFormantFrequency (cps)Amplitude
(dB re F1 of /O/)
Duration (sec)
/i/ heed1 285 - 2 .293
2 2373 -33
3 3088 -37
/I/ hid 1 356 +5 .139
2 2098 -19
3 2696 -26
/E/ head 1 569 - 2 .170
2 1965 -16
3 2636 -24
/æ/ had 1 748 - 6 .210
2 1746 -11
3 2460 -24
/A/ hard 1 677 - 4 .335
2 1083 -10
3 2540 -35
/Q/ hod 1 599 0 .178
2 891 - 6
3 2605 -35
/O/ haw'd 1 449 0 .330
2 737 -10
3 2635 -42
/U/ hood 1376 + 4 .142
2 950 -10
3 2440 -36
/u/ who'd 1 309 +2 .294
2 939 -22
3 2320 -41
/V/ Hud 1 722 - 2 .148
2 1236 -7
3 2537 -30
/3/ heard 1 581 - 2 .309
2 1381 -15
3 2436 -31