vot: Combined VOT production data

Description Usage Format Details

Description

Word initial VOT measurements from four different production experiments. Two are isolated word reading, one is sentence reading, and one is conversational speech from interviews.

Usage

1

Format

A data frame with 14,262 observations of 12 variables:

source

The source of this observation

subject

ID of the talker that produced this observation

phoneme

Phoneme whose VOT was measured

final_phoneme

Final phoneme in the word (allen-miller only; all voiced/voiceless stops)

vot

Voice onset time in ms

vowel_duration

Duration of the following vowel in ms

final_closure

Closure duration of final stop (allen-miller only).

final_aspiration

Duration of release burst of final stop (allen-miller only).

prevoiced

For voiced stops, TRUE if prevoicing was present, FALSE if not. NA for voiceless stops

word

Word that the phoneme occurred in

sex

The sex of the talker ('m' or 'f'), NA if missing (bbg09).

age

The age of the talker, NA if missing (bbg09 and gva13).

age_group

The age group of the talker ('o' for over 40, and 'y' for under 30; based on the Buckeye Corpus scheme).

bilingual

TRUE for French-English bilinguals, FALSE for english monolinguals

speech_rate

The local speech rate (for Buckeye only) in syllables per second. This is calculated based on the number of vowels in the continuous speech window around the word where VOT was extracted.

speech_rate_condition

Allen & Miller (1999) elicited slow and fast speech rates in their Experiment 2 by varying the instructions and the time that the word was displayed (1500ms for the "slow" rate, and 750ms for the "fast" rate)

.

stop_length

The length of the whole stop, from burst to following sonorant onset (Buckeye only), in ms.

voicing

Is the phoneme voiced or voiceless.

place

Place of articulation. cor for coronal, lab for labial, and dor for dorsal.

Details

The sources are

bbg09

Baese-Berk & Goldrick (2009), experiment 1 measured voice onset time for monosyllabic words with word-initial voiceless stops. Some words had voiced minimal pair, while others did not. Words were read in isolation with other monosyllabic fillers that did not have initial stops. Experiment 1a only had /p/-initial words, and Experiment 1b had /t/ and /k/.

gva13

Goldrick, Vaughn, & Murphy (2013), experiment 1 is analogous to bbg09 but with voiced stops.

allen-miller

Allen & Miller (1999). Experiment 1 was similar to gva13 and measured VOTs for voiced and voiceless stops in monosyllabic words from . Experiment 2 was the same as Experiment 1 but included the additional manipulation of speaking rate (fast and slow). Prevoiced stops are coded as NA. Since all words were monosyllabic with a final stop consonant, the stop consonant phoneme is included (final_phoneme), as is the measurements of closure and aspiration duration (final_closure and final_aspiration).

levari-sent

Lev-Ari, S., & Peperkamp, S. (2013). English-French bilinguals (English L1) read 16 sentences, 10 of which contained one word each starting with /p/, /t/, and /k/. (Items are the English sentences from Fowler, Sramkoc, Ostrya, Rowlanda, & Halle, 2008)

levari-convo

A subset of the talkers from levari-sent conducted interviews, from which VOTs of all word-initial voiceless stops were measured.

buckeye

Nelson, Noah & Wedel, Andrew (under revision). The phonetic specificity of competition: Contrastive hyperarticulation of voice onset time in conversational English. VOTs manually extracted from the Buckeye Corpus of conversational speech by Andy Wedel. Age is coded as old (40+) or young (under 40). Includes two measures of local speech rate, syllables per second and total stop length.


kleinschmidt/votcorpora documentation built on Nov. 20, 2019, 3:48 p.m.