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. 2016 Dec 6;140(6):4142–4153. doi: 10.1121/1.4968781

TABLE I.

Formant frequencies (in Hz) for five vowels. Values in parentheses in the first column are bandwidths (in Hz) for each formant.

Vowel /i/ /ɑ/ /u/ /æ/ /ɝ/
“beet” “father” “food” “bat” “bird”
F1 (90) 250 750 250 750 450
F2 (110) 2250 1050 850 1450 1150
F3 (170) 3050 2950 2250 2450 1250
F4 (250) 3350 3350 3350 3350 3350
F5 (300) 3850 3850 3850 3850 3850