A dataset containing formant measurements from 81 tokens of the MOUTH (/au/) vowel. These came from generated nonce words. This dataset is relatively clean and can be used for vowel formant example data.

mouth

Format

A data frame with 2,758 rows and 12 variables:

traj_id

a unique identifier for each trajectory (that is, each combination of vo))

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

percent

how far into the vowel's duration (in terms of percent of the duration) the formants were extracted. 0 = onset, 50 = midpoint, 100 = offset

word

the generated nonce word I read

pre

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

fol

the consonant(s) after the vowel

formant

which formant did the data come from

hz

the formant measurements, in hz

Details

I generated 27 nonce words of the form (C)CVC(C) with the following sounds:

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

  • 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 is dataset is also in the joeyr package.