LINGUIST List 17.1374
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Thu May 04 2006
Diss: Phonology: Dalcher: 'Consonant Weakening in Fl...'
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1. Christina
Villafana Dalcher,
Consonant Weakening in Florentine Italian: An acoustic study of gradient and variable sound change
Message 1: Consonant Weakening in Florentine Italian: An acoustic study of gradient and variable sound change
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Date: 03-May-2006
From: Christina Villafana Dalcher <cvillafana verizon.net>
Subject: Consonant Weakening in Florentine Italian: An acoustic study of gradient and variable sound change
Institution: Georgetown University
Program: Department of Linguistics
Dissertation Status: Completed
Degree Date: 2006
Author: Christina Villafana Dalcher
Dissertation Title: Consonant Weakening in Florentine Italian: An acoustic study of gradient and variable sound change
Dissertation URL: http://www.georgetown.edu/users/cmv2/Dissertation.htm
Linguistic Field(s):
Phonology
Dissertation Director:
Elizabeth C. Zsiga
Dissertation Abstract:
This dissertation analyzes Gorgia Toscana, a process in which consonants weaken in fluent speech in Tuscan Italian dialects. Previous studies (Izzo 1972; Giannelli and Savoia 1978-80; Kirchner 1998; Marotta 2001; Sorianello 2001) describe Gorgia Toscana as a lenition process resulting in categorical, but variable output. Categoricity is evident in these studies' reference to discrete allophonic realizations; variation is observed along several dimensions such as place of articulation, locus of weakening, and subject-specific degree of weakening. This dissertation examines acoustic data from six speakers of Florentine Italian (one thousand tokens) in order to describe the process of Gorgia Toscana quantitatively, and to assess the roles of physiological, perceptual, abstract cognitive, and social factors in the process. Four acoustic correlates of lenition were measured: consonant duration, voicing, relative amplitude, and release burst. Principal Components Analysis performed on these individual measures generated a latent variable (L-score), enabling quantification of lenition for each token. Statistical analysis shows that lenition occurs at all points along a continuum, that it affects all stop consonants in the phoneme inventory (with velars leniting most, and categorically surfacing as extremely weak approximants), and that it is present to a greater or lesser extent for different speakers. Results of this study indicate that Gorgia Toscana produces gradient and variable output, with certain patterns occurring in the variation. The observations that emerge from the data cannot all be accounted for if Gorgia Toscana is characterized as a purely phonetic, phonological, or socially-driven process of sound change. Rather, different aspects of the process are attributed to different motivators: gradience and velar-preference to articulator movements; resistance of non-velar lenition to perceptual constraints; targeting of a complete natural class and categorical weakening to abstract featural representations; and intersubject variation in velar lenition to external social factors. It is argued that an account of the patterns observed in Florentine consonant weakening necessitates the interaction of several forces. Analysis of data from Gorgia Toscana contributes to the body of research on sound change and variation and serves as a basis from which to explore the interaction of forces on language structure and use.
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