A model of lingual coarticulation based on articulatory constraints

Daniel Recasens, Maria Dolors Pallarès, Jordi Fontdevila

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141 Citations (Scopus)


The magnitude and temporal extent of consonantal and vocalic coarticulation are reported for VCV sequences with two vowels and seven consonants. Different degrees of articulatory constraint, or DAC values, are assigned to the consonants and vowels based on knowledge of their articulatory properties, in particular, the degree of involvement of the tongue dorsum in closure or constriction formation. Mean results on dorsopalatal contact and F2 frequency for five speakers of the Catalan language are presented. Predictions based on the DAC value for consonants and vowels account satisfactorily for the C-to-V effects; moreover, vowel- dependent effects tend to be negatively correlated with the DAC value for the consonant. V-to-C effects are also conditioned by the tongue-dorsum position for the consonantal gesture. Coarticulatory directionality trends reveal that the extent to which the vowel-dependent tongue-dorsum activity may be anticipated is closely linked to the mechanico-inertial constraints associated with the tongue dorsum during consonantal production; this observation explains the salience of the vowel-dependent anticipatory effects in VCV sequences favoring C-to-V anticipation and of the vowel-dependent carryover effects in VCV sequences giving special weight to C-to-V carryover.
Original languageEnglish
Pages (from-to)544-561
JournalJournal of the Acoustical Society of America
Issue number1
Publication statusPublished - 1 Jul 1997

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