Doctor of Philosophy, The Ohio State University, 2018, Spanish and Portuguese
This dissertation focuses on variable vowel reduction in Mexico City Spanish, a salient feature of the pronunciation of this dialect in which a word like tomates “tomatoes” may be variably realized with a shortened, voiceless, or weakened final vowel. My research builds on studies of vowel reduction in other languages and varieties, and places Mexican Spanish within the typology of languages and varieties that variably reduce vowels in this way. My investigation of the phenomenon is the first to examine acoustic data to (i) understand the acoustic properties of these reduced vowels, (ii) describe and categorize them, and (iii) analyze their patterning with regard to linguistic and social factors.
To investigate this issue, I conducted fieldwork onsite in Mexico City in 2015 and 2016, and recorded speech samples with 73 native speakers, women and men from diverse socioeconomic backgrounds, between the ages of 21 and 81. The recordings include a sociolinguistic interview designed to elicit spontaneous informal conversational speech. Approximately 160 vowel tokens were acoustically analyzed for each of 40 of those participants using Praat (Boersma & Weenink 2016). For all vowels not adjacent to another vowel or glide, I measured the segment duration as well as the duration of full modal voicing within the segment, for a total of 6,504 tokens. Along with the results from the acoustic analysis, each token was coded for target vowel, surrounding segmental context, stress, position relative to lexical stress, syllable type, word position, speaker age, gender, and socioeconomic status, in order to execute statistical models that test the relationships between linguistic and social factors and vowel reduction.
My findings from the acoustic analysis indicate that various types of reduction in the articulation of vowels occur, including a range of voice weakening, including devoicing, and weakened/breathy voicing, as well as extreme shortening. The findings from the i (open full item for complete abstract)
Committee: Rebeka Campos-Astorkiza (Advisor); Terrell Morgan (Committee Member); Fernando Martínez-Gil (Committee Member)
Subjects: Linguistics