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Devoicing measures of European Portuguese fricatives

Devoicing measures of European Portuguese fricatives
Devoicing measures of European Portuguese fricatives
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.
speech processing, voiced-unvoiced classification, European Portuguese fricatives
3-540-40436-8
1-8
Springer
Jesus, Luis M.T.
7a88fbdb-5bf9-4874-b58d-d8f5a743bb97
Shadle, Christine H.
d41e8c97-d8f9-41ca-a69a-4021e978f786
Mamede, Nuno J.
Baptista, Jorge
Trancoso, Isabel
Nunes, Maria das Gracas Volpe
Jesus, Luis M.T.
7a88fbdb-5bf9-4874-b58d-d8f5a743bb97
Shadle, Christine H.
d41e8c97-d8f9-41ca-a69a-4021e978f786
Mamede, Nuno J.
Baptista, Jorge
Trancoso, Isabel
Nunes, Maria das Gracas Volpe

Jesus, Luis M.T. and Shadle, Christine H. (2003) Devoicing measures of European Portuguese fricatives. In, Mamede, Nuno J., Baptista, Jorge, Trancoso, Isabel and Nunes, Maria das Gracas Volpe (eds.) Computational Processing of the Portuguese Language. Springer, pp. 1-8.

Record type: Book Section

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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More information

Published date: 2003
Keywords: speech processing, voiced-unvoiced classification, European Portuguese fricatives
Organisations: Electronics & Computer Science

Identifiers

Local EPrints ID: 259159
URI: http://eprints.soton.ac.uk/id/eprint/259159
ISBN: 3-540-40436-8
PURE UUID: 1231aeac-b58c-4430-aadc-9e4a7772a319

Catalogue record

Date deposited: 14 Mar 2004
Last modified: 14 Mar 2024 06:20

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Contributors

Author: Luis M.T. Jesus
Author: Christine H. Shadle
Editor: Nuno J. Mamede
Editor: Jorge Baptista
Editor: Isabel Trancoso
Editor: Maria das Gracas Volpe Nunes

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