A dataset containing formant measurements from the midpoints of 564 vowel tokens. These came from generated nonce words. This dataset is relatively clean and can be used for vowel formant example data.

vowels

Format

A data frame with 564 rows and 12 variables:

vowel_id

a unique identifier for each vowel token

start

the start time for that vowel

end

the end time for that vowel

t

the time where formants were extracted

F1

the F1 measurement

F2

the F2 measurement

F3

the F3 measurement

F4

the F4 measurement

word

the generated nonce word I read

pre

the consonant(s) before the vowel (if any)

vowel

the vowel class, in Wells' Lexical Sets

fol

the consonant(s) after the vowel

Details

I generated 246 nonce words of the form (C)CVC(C) with the following sounds:

  • Onsets: /t/, /d/, /s/, /z/, n/, /h/, / /, /st/, /sn/

  • Vowels: /i/, /ɪ/, /eɪ/, /ɛ/, /æ/, /a/, /ɔ/, /oʊ/, /ʊ/, /u/

  • Codas: /d/, /z/, /dz/.

Generally, only coronals were used. Clusters were okay. Codas were only obstruents. All American English vowels were used. Not the most scientific dataset, but sufficient for my purposes.

Every combination of these levels was generated and repeated three times. The resulting list was sorted randomly. I read them in a quiet environment, manually aligned them, extracted formants using a Praat script (4 formants at 4500 Hz), and filtered out the bad measurements.

The result is a pretty clean dataset showing my vowel formant trajectories, in the environment of a coronal consonant.

The intended purpose of this data is so that I can quickly have a nice sample at my disposal when illustrating R functions. However, you may use this dataset however you please.

Metadata about me: White male, born in 1989 in suburban St. Louis where I lived until I was 18. Parents are from upstate New York and Minnesota. Lived in Utah, Brazil, and Georgia as an adult. Data was recorded July 2020 (age 31).

Note that this dataset is also in the joeyr package under the name midpoints.