An acoustic study of the centering diphthongs in the Rio de Janeiro variety of Brazilian Portuguese
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Working Papers em Lingüística (Online) |
Texto Completo: | https://periodicos.ufsc.br/index.php/workingpapers/article/view/1984-8420.2018v19n2p6 |
Resumo: | In this study, we offer an acoustic characterization of the occurrences of so-called centering diphthongs (CD) in the Rio de Janeiro variety of Brazilian Portuguese. We define CD as underlying monophthongs that surface as sequences of a vowel followed by a central semivowel (inglide). CD and plain monophthongs were manually segmented from a radio interview corpus, and their formant trajectories and duration were subsequently compared both visually and quantitatively, using the technique of the discrete cosine transform. Our results show that there are striking differences between these two types of vowels. The articulatory gestures involved in CD production are of greater magnitude in horizontal and vertical dimensions of the vowel space; they originate in a peripheral region and are directed towards the central region at varying heights. The duration of the CD is also longer than that of plain monophthongs, regardless of whether the environment is prosodically prominent. A distributional analysis shows that there is a preference for the occurrence of CD in prosodically prominent environments, as well as in the context of disfluencies. We suggest that this distributional bias may contribute to the emergence of a complementary distribution between plain monophthongs and CD. Finally, we suggest, based on Articulatory Phonology, that centering glides in PB can emerge as a result of imperfect synchrony between the tongue body and glottal gestures that gets enhanced in lengthening-inducing environment. |
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Working Papers em Lingüística (Online) |
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An acoustic study of the centering diphthongs in the Rio de Janeiro variety of Brazilian PortugueseUm estudo acústico dos ditongos centralizantes na fala cariocaIn this study, we offer an acoustic characterization of the occurrences of so-called centering diphthongs (CD) in the Rio de Janeiro variety of Brazilian Portuguese. We define CD as underlying monophthongs that surface as sequences of a vowel followed by a central semivowel (inglide). CD and plain monophthongs were manually segmented from a radio interview corpus, and their formant trajectories and duration were subsequently compared both visually and quantitatively, using the technique of the discrete cosine transform. Our results show that there are striking differences between these two types of vowels. The articulatory gestures involved in CD production are of greater magnitude in horizontal and vertical dimensions of the vowel space; they originate in a peripheral region and are directed towards the central region at varying heights. The duration of the CD is also longer than that of plain monophthongs, regardless of whether the environment is prosodically prominent. A distributional analysis shows that there is a preference for the occurrence of CD in prosodically prominent environments, as well as in the context of disfluencies. We suggest that this distributional bias may contribute to the emergence of a complementary distribution between plain monophthongs and CD. Finally, we suggest, based on Articulatory Phonology, that centering glides in PB can emerge as a result of imperfect synchrony between the tongue body and glottal gestures that gets enhanced in lengthening-inducing environment.O objetivo do trabalho é fazer a caracterização acústica de ocorrências daquilo que chamamos de ditongos centralizantes (DC) na fala carioca. Definimos DC como vogais que, embora subjacentemente sejam monotongos, são percebidas como uma sequência de vogal seguida de uma semivogal com qualidade central. Ocorrências de DC e de monotongos realizados como tal foram buscadas em um corpus de entrevistas radiofônicas. As trajetórias formânticas e a duração dos dois tipos de sequências foram comparadas visualmente e quantitativamente por meio da transformada discreta do cosseno. Os resultados indicam que há diferenças marcantes entre os dois tipos de vogais. A trajetória dos DC apresenta movimentos de maior magnitude nas dimensões horizontal e vertical do espaço vocálico, que se iniciam na região mais periférica e terminam na região central, em alturas variadas. Os DC são também mais longos do que os monotongos, quer estejam em posição prosódica proeminente ou não. Os dados de contagem de ocorrências de DC sugerem que há uma preferência pela ocorrência desses segmentos em posição de proeminência prosódica e em momentos de disfluência. Apontamos que há a possibilidade de este viés distribucional evoluir para o estabelecimento de um fenômeno de distribuição complementar entre monotongos e DC. Sugerimos, por fim, com base na Fonologia Articulatória, que a emergência da articulação centralizante resulta da amplificação, em contextos que induzem o alongamento vocálico, da sincronia imperfeita entre os gestos de corpo de língua e glotal.Programa de Pós-Graduação em Linguística da UFSC2018-12-27info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion"Avaliado por pares"Pesquisa experimental; Análise acústicaapplication/pdfhttps://periodicos.ufsc.br/index.php/workingpapers/article/view/1984-8420.2018v19n2p610.5007/1984-8420.2018v19n2p6Working Papers em Linguística; v. 19 n. 2 (2018): Fala, Voz e Expressividade; 6-341984-8420reponame:Working Papers em Lingüística (Online)instname:Universidade Federal de Santa Catarina (UFSC)instacron:UFSCporhttps://periodicos.ufsc.br/index.php/workingpapers/article/view/1984-8420.2018v19n2p6/38536Copyright (c) 2019 Pablo Arantes, André Nikulin Guzmán, Jessé da Silva Lima, Aveliny Mantovan Limainfo:eu-repo/semantics/openAccessArantes, PabloNikulin, AndreyLima, Jessé da SilvaLima, Aveliny Mantovan2019-05-23T08:51:07Zoai:periodicos.ufsc.br:article/55713Revistahttp://www.periodicos.ufsc.br/index.php/workingpapersPUBhttps://periodicos.ufsc.br/index.php/workingpapers/oaiizete.lehmkuhl.coelho@ufsc.br||portaldeperiodicos.bu@contato.ufsc.br||1984-84201415-1464opendoar:2019-05-23T08:51:07Working Papers em Lingüística (Online) - Universidade Federal de Santa Catarina (UFSC)false |
dc.title.none.fl_str_mv |
An acoustic study of the centering diphthongs in the Rio de Janeiro variety of Brazilian Portuguese Um estudo acústico dos ditongos centralizantes na fala carioca |
title |
An acoustic study of the centering diphthongs in the Rio de Janeiro variety of Brazilian Portuguese |
spellingShingle |
An acoustic study of the centering diphthongs in the Rio de Janeiro variety of Brazilian Portuguese Arantes, Pablo |
title_short |
An acoustic study of the centering diphthongs in the Rio de Janeiro variety of Brazilian Portuguese |
title_full |
An acoustic study of the centering diphthongs in the Rio de Janeiro variety of Brazilian Portuguese |
title_fullStr |
An acoustic study of the centering diphthongs in the Rio de Janeiro variety of Brazilian Portuguese |
title_full_unstemmed |
An acoustic study of the centering diphthongs in the Rio de Janeiro variety of Brazilian Portuguese |
title_sort |
An acoustic study of the centering diphthongs in the Rio de Janeiro variety of Brazilian Portuguese |
author |
Arantes, Pablo |
author_facet |
Arantes, Pablo Nikulin, Andrey Lima, Jessé da Silva Lima, Aveliny Mantovan |
author_role |
author |
author2 |
Nikulin, Andrey Lima, Jessé da Silva Lima, Aveliny Mantovan |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Arantes, Pablo Nikulin, Andrey Lima, Jessé da Silva Lima, Aveliny Mantovan |
description |
In this study, we offer an acoustic characterization of the occurrences of so-called centering diphthongs (CD) in the Rio de Janeiro variety of Brazilian Portuguese. We define CD as underlying monophthongs that surface as sequences of a vowel followed by a central semivowel (inglide). CD and plain monophthongs were manually segmented from a radio interview corpus, and their formant trajectories and duration were subsequently compared both visually and quantitatively, using the technique of the discrete cosine transform. Our results show that there are striking differences between these two types of vowels. The articulatory gestures involved in CD production are of greater magnitude in horizontal and vertical dimensions of the vowel space; they originate in a peripheral region and are directed towards the central region at varying heights. The duration of the CD is also longer than that of plain monophthongs, regardless of whether the environment is prosodically prominent. A distributional analysis shows that there is a preference for the occurrence of CD in prosodically prominent environments, as well as in the context of disfluencies. We suggest that this distributional bias may contribute to the emergence of a complementary distribution between plain monophthongs and CD. Finally, we suggest, based on Articulatory Phonology, that centering glides in PB can emerge as a result of imperfect synchrony between the tongue body and glottal gestures that gets enhanced in lengthening-inducing environment. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-12-27 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion "Avaliado por pares" Pesquisa experimental; Análise acústica |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://periodicos.ufsc.br/index.php/workingpapers/article/view/1984-8420.2018v19n2p6 10.5007/1984-8420.2018v19n2p6 |
url |
https://periodicos.ufsc.br/index.php/workingpapers/article/view/1984-8420.2018v19n2p6 |
identifier_str_mv |
10.5007/1984-8420.2018v19n2p6 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://periodicos.ufsc.br/index.php/workingpapers/article/view/1984-8420.2018v19n2p6/38536 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2019 Pablo Arantes, André Nikulin Guzmán, Jessé da Silva Lima, Aveliny Mantovan Lima info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2019 Pablo Arantes, André Nikulin Guzmán, Jessé da Silva Lima, Aveliny Mantovan Lima |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Programa de Pós-Graduação em Linguística da UFSC |
publisher.none.fl_str_mv |
Programa de Pós-Graduação em Linguística da UFSC |
dc.source.none.fl_str_mv |
Working Papers em Linguística; v. 19 n. 2 (2018): Fala, Voz e Expressividade; 6-34 1984-8420 reponame:Working Papers em Lingüística (Online) instname:Universidade Federal de Santa Catarina (UFSC) instacron:UFSC |
instname_str |
Universidade Federal de Santa Catarina (UFSC) |
instacron_str |
UFSC |
institution |
UFSC |
reponame_str |
Working Papers em Lingüística (Online) |
collection |
Working Papers em Lingüística (Online) |
repository.name.fl_str_mv |
Working Papers em Lingüística (Online) - Universidade Federal de Santa Catarina (UFSC) |
repository.mail.fl_str_mv |
izete.lehmkuhl.coelho@ufsc.br||portaldeperiodicos.bu@contato.ufsc.br|| |
_version_ |
1797174773547008000 |