The Effect of Speaking Style on a Locus Equation Characterization of Stop Place of Articulation
- 1 December 1998
- journal article
- Published by Walter de Gruyter GmbH in Phonetica
- Vol. 55 (4), 204-225
- https://doi.org/10.1159/000028433
Abstract
Locus equations were employed to assess the phonetic stability and distinctiveness of stop place categories in reduced speech. Twenty-two speakers produced stop consonant + vowel utterances in citation and spontaneous speech. Coarticulatory increases in hypoarticulated speech were documented only for /dV/ and [gV] productions in front vowel contexts. Coarticulatory extents for /bV/ and [gV] in back vowel contexts remained stable across style changes. Discriminant analyses showed equivalent levels of correct classification across speaking styles. CV reduction was quantified by use of Euclidean distances separating stop place categories. Despite sensitivity of locus equation parameters to articulatory differences encountered in informal speech, stop place categories still maintained a clear separability when plotted in a higher-order slope × y-intercept acoustic space.Keywords
This publication has 25 references indexed in Scilit:
- On the relevance of locus equations for production and perception of stop consonantsPerception & Psychophysics, 1998
- The perceptual relevance of locus equationsThe Journal of the Acoustical Society of America, 1997
- Invariants, specifiers, cues: An investigation of locus equations as information for place of articulationPerception & Psychophysics, 1994
- Effects of speaking rate on tongue position and velocity of movement in vowel productionThe Journal of the Acoustical Society of America, 1988
- Articulatory correlates of stress and speaking rate in Swedish VCV utterancesThe Journal of the Acoustical Society of America, 1988
- The motor theory of speech perception revisedCognition, 1985
- Effect of speaking rate on vowel formant movementsThe Journal of the Acoustical Society of America, 1978
- A cineradiographic study of VC and CV articulatory velocitiesJournal of Phonetics, 1976
- Spectrographic Study of Vowel ReductionThe Journal of the Acoustical Society of America, 1963
- Acoustic PhoneticsLanguage, 1948