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Vowel Lenition in Brazilian Portuguese: Ultrasound Evidence

Event Type
Lecture
Topic
academic
Sponsor
Lemann Institute for Brazilian Studies
Location
101 International Studies Building
Date
Oct 3, 2017   2:00 - 3:30 pm  
Speaker
Ryan Shosted
Cost
Free
Contact
Elis Artz
E-Mail
elisartz@illinois.edu
Views
4

The disappearance of vowels in word-final position is a well-studied phonological process in Brazilian Portuguese. In this paper, an automated process is used to register large-magnitude deformations in the horizontal and vertical dimensions of sagittal ultrasound images of the tongue. Resulting lingual velocity functions are consistent with the hypothesis that vowels are not entirely deleted when they devoice; instead, they overlap with the preceding consonant. Evidence also suggests that extreme reduction is triggered by increasing speech rate.

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