Phonation differences and the phonetic content of the tense-lax contrast in Utah English

Abstract

ABSTRACTThis article presents data bearing on the question of what happens at the phonetic level during a sound change of the type which Labov, Yaeger, and Steiner (1972) labeled an “apparent merger.” Our production data come from three generations of native Utahns who participated in the Intermountain Language Survey (ImLS) and four New Yorkers who served as control subjects. The phonetic subject of our study is the ongoing change in the tense-lax pairs /i-I, e-ε, u-υ/ before tautosyllabic dark [†] in Utah English. Previous studies reported that the resultant vowels are usually, but not always, perceived by both transcribers and speakers as lax. Acoustic analysis, self-categorization data, and perception data demonstrate that, after the usual F1/F2 contrast has been lost, contrasts between these and lax vowels may persist in phonation differences and that these phonation differences may be available to hearers.