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Temporal acoustic correlates of the voicing contrast in European Portuguese stops

Published online by Cambridge University Press:  24 November 2010

Marisa Lousada ,
Luis M. T. Jesus  and
Andreia Hall
Marisa Lousada
Affiliation:
Escola Superior de Saúde da Universidade de Aveiro, Universidade de Aveiro, Portugal marisalousada@ua.pt
Luis M. T. Jesus
Affiliation:
Escola Superior de Saúde da Universidade de Aveiro & Instituto de Engenharia Electrónica e Telemática de Aveiro, Universidade de Aveiro, Portugal lmtj@ua.pt
Andreia Hall
Affiliation:
Departamento de Matemática da Universidade de Aveiro e Centro de Investigação e Desenvolvimento em Matemática e Aplicações, Portugal andreia.hall@ua.pt
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Abstract

This study focuses on the temporal analysis of stops /p b t d k ɡ/ and devoicing analysis of voiced stops /b d ɡ/ produced in different word positions by six native speakers of European Portuguese. The study explores acoustic properties related to voicing. The following acoustic properties were measured: voice onset time (VOT), stop duration, closure duration, release duration, voicing into closure duration, duration of the preceding vowel and duration of the following vowel. Results suggested that when [b d ɡ] were devoiced, the acoustic properties stop duration, closure duration, duration of the following vowel, duration of the preceding vowel and duration of voicing into closure were relevant for the voicing distinction. Implications for research and practice in speech and language therapy are discussed. Further investigation is needed to find how the productions analysed in the present study were perceived by listeners, specifically productions of devoiced stops.

Type
Research Article
Information
Journal of the International Phonetic Association , Volume 40 , Issue 3 , December 2010 , pp. 261 - 275
Copyright
Copyright © International Phonetic Association 2010

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