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International Workshop on Computational Processing of the Portuguese Language

PROPOR 2003: Computational Processing of the Portuguese Language pp 1–8Cite as

Devoicing Measures of European Portuguese Fricatives

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Part of the book series: Lecture Notes in Computer Science ((LNAI,volume 2721))

Abstract

This paper presents a study of devoicing of European Portuguese fricatives. Two devoicing criteria (a manual criterion and a criterion based on the ratio of variances of the laryngograph signal during the VF transition and during the fricative) were used to classify the examples into two or three categories. The results of the automatic and manual measures of devoicing are compared, and an explanation for observed misclassifications is presented. Devoicing occurs extensively in Portuguese; results are compared to those for English.

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References

  1. Abercrombie, D. (1967). Elements of General Phonetics. Edinburgh: Edinburgh University Press.

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  5. Jesus, L.M.T. and C.H. Shadle (2002). A parametric study of the spectral characteristics of European Portuguese fricatives. Journal of Phonetics 30(3), 437–464.

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Author information

Authors and Affiliations

  1. Escola Superior de Saúde da Universidade de Aveiro, and Instituto de Engenharia Electrónica e Telemática de Aveiro, Universidade de Aveiro, 3810-193, Aveiro, Portugal

    Luis M. T. Jesus

  2. Department of Electronics and Computer Science, University of Southampton, Southampton, SO17 1BJ, UK

    Christine H. Shadle

Authors
  1. Luis M. T. Jesus
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  2. Christine H. Shadle
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Editor information

Editors and Affiliations

  1. L2F, INESC-ID Lisboa, Technical University of Lisbon, Rua Alves Redol, 9, 1000-029, Lisbon, Portugal

    Nuno J. Mamede  & Isabel Trancoso  & 

  2. Faculty of Humanities and Social Sciences, University of Algarve, Campus de Gambelas, 8005-139, Faro, Portugal

    Jorge Baptista

  3. NILC, ICMC-USP São-Carlos, Av. do Trabalhador São-Carlense, 400, 13560-970, São Carlos, SP, Brazil

    Maria das Graças Volpe Nunes

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© 2003 Springer-Verlag Berlin Heidelberg

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Cite this paper

Jesus, L.M.T., Shadle, C.H. (2003). Devoicing Measures of European Portuguese Fricatives. In: Mamede, N.J., Trancoso, I., Baptista, J., das Graças Volpe Nunes, M. (eds) Computational Processing of the Portuguese Language. PROPOR 2003. Lecture Notes in Computer Science(), vol 2721. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-45011-4_1

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  • DOI: https://doi.org/10.1007/3-540-45011-4_1

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-40436-1

  • Online ISBN: 978-3-540-45011-5

  • eBook Packages: Springer Book Archive

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