Table 4 Mean F1 and F2 across recordings for the vowel stimuli.

From: Functional and spatial segregation within the inferior frontal and superior temporal cortices during listening, articulation imagery, and production of vowels

Vowels

Mean F1

STD

Mean F2

STD

Bark Value

Tones

i

305

21.1

2170

25.7

5

450

e

303

35.9

1736

30.7

8

840

ɛ

400

27.1

1428

47.4

11

1370

a

525

28.9

1139

7.1

13

1850

ɔ

455

68.1

836

34.9

14

2150

o

338

23.4

637

71.6

15

2500

u

278

16.2

604

27.0

16

2900

  1. Here we show the Bark scale -to-Hertz conversion for the pure tones used in the tone perception task. Tone frequencies were obtained starting from mean vowel frequencies (left-to-right in the table). All vowels and tones lasted for 2 seconds.
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