Digital signal processing in the differential diagnosis of benign larynx diseases [Abstract in English]

Detalhes bibliográficos
Autor(a) principal: Zwetsch, Iuberi Carson
Data de Publicação: 2007
Outros Autores: Fagundes, Rubem Dutra Ribeiro, Russomano, Thais, Scolari, Diogo
Tipo de documento: Artigo
Idioma: por
eng
Título da fonte: Scientia Medica (Porto Alegre. Online)
Texto Completo: https://revistaseletronicas.pucrs.br/scientiamedica/article/view/1912
Resumo: Aims: To present a new Digital Signal Processing procedure to evaluate voice disorders, specifically those related to the benign larynx diseases. Methods: Recorded acoustic signals of normal and abnormal voices of outpatients subjected to videolaryngoscopy had been digitalized for the study of the alterations in vocal acoustics. Window and cepstral analysis were applied on these signals. Results: Through the observation of the different alterations in the voices, it was possible to develop a set of parameters of analysis that allowed a coherent diagnosis of larynx alterations, based in the cepstral findings. Cases randomly selected, who had not participated of the study, had been identified only through the information of the set of parameters, with 80% of rightness, significantly validating the method. Conclusions: This computing method is very efficient and non-invasive, successfully identifying vocal alterations by cepstral analysis. KEY WORDS: LARYNX DISEASES; CEPSTRUM; CEPSTRAL ANALYSIS.
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spelling Digital signal processing in the differential diagnosis of benign larynx diseases [Abstract in English]Processamento digital de sinais no diagnóstico diferencial de doenças laríngeas benignasAims: To present a new Digital Signal Processing procedure to evaluate voice disorders, specifically those related to the benign larynx diseases. Methods: Recorded acoustic signals of normal and abnormal voices of outpatients subjected to videolaryngoscopy had been digitalized for the study of the alterations in vocal acoustics. Window and cepstral analysis were applied on these signals. Results: Through the observation of the different alterations in the voices, it was possible to develop a set of parameters of analysis that allowed a coherent diagnosis of larynx alterations, based in the cepstral findings. Cases randomly selected, who had not participated of the study, had been identified only through the information of the set of parameters, with 80% of rightness, significantly validating the method. Conclusions: This computing method is very efficient and non-invasive, successfully identifying vocal alterations by cepstral analysis. KEY WORDS: LARYNX DISEASES; CEPSTRUM; CEPSTRAL ANALYSIS.Objetivos: Apresentar um novo procedimento em Processamento Digital de Sinais para avaliar distúrbios da voz, especificamente os relacionados às doenças benignas da laringe. Métodos: Foram utilizados sinais acústicos gravados de vozes normais e com alterações, de pacientes atendidos em consultório, que realizaram videolaringoscopia. O sinal acústico foi digitalizado para o estudo das alterações acústicas vocais. Sobre estes sinais foi aplicada uma janela e análise cepstral. Resultados: Observando-se as diferentes alterações das vozes em estudo, foi possível desenvolver um conjunto de parâmetros de análise, que permitiu um diagnóstico coerente das alterações laríngeas, baseado nos achados cepstrais. Casos escolhidos aleatoriamente, e que não participaram do estudo, foram identificados somente com as informações do conjunto de parâmetros com 80% de acerto, validando significativamente o método. Conclusões: Este método computacional é muito eficiente e não invasivo, identificando com sucesso alterações vocais pela análise cepstral. DESCRITORES: DOENÇAS LARÍNGEAS; CEPSTRUM; ANÁLISE CEPSTRAL.Editora da PUCRS - ediPUCRS2007-10-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttps://revistaseletronicas.pucrs.br/scientiamedica/article/view/1912Scientia Medica; Vol. 16 No. 3 (2006); 109-114Scientia Medica; v. 16 n. 3 (2006); 109-1141980-61081806-5562reponame:Scientia Medica (Porto Alegre. Online)instname:Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS)instacron:PUC_RSporenghttps://revistaseletronicas.pucrs.br/scientiamedica/article/view/1912/1417https://revistaseletronicas.pucrs.br/scientiamedica/article/view/1912/7990Zwetsch, Iuberi CarsonFagundes, Rubem Dutra RibeiroRussomano, ThaisScolari, Diogoinfo:eu-repo/semantics/openAccess2018-02-09T14:16:37Zoai:ojs.revistaseletronicas.pucrs.br:article/1912Revistahttps://revistaseletronicas.pucrs.br/scientiamedica/PUBhttps://revistaseletronicas.pucrs.br/scientiamedica/oaiscientiamedica@pucrs.br || editora.periodicos@pucrs.br1980-61081806-5562opendoar:2018-02-09T14:16:37Scientia Medica (Porto Alegre. Online) - Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS)false
dc.title.none.fl_str_mv Digital signal processing in the differential diagnosis of benign larynx diseases [Abstract in English]
Processamento digital de sinais no diagnóstico diferencial de doenças laríngeas benignas
title Digital signal processing in the differential diagnosis of benign larynx diseases [Abstract in English]
spellingShingle Digital signal processing in the differential diagnosis of benign larynx diseases [Abstract in English]
Zwetsch, Iuberi Carson
title_short Digital signal processing in the differential diagnosis of benign larynx diseases [Abstract in English]
title_full Digital signal processing in the differential diagnosis of benign larynx diseases [Abstract in English]
title_fullStr Digital signal processing in the differential diagnosis of benign larynx diseases [Abstract in English]
title_full_unstemmed Digital signal processing in the differential diagnosis of benign larynx diseases [Abstract in English]
title_sort Digital signal processing in the differential diagnosis of benign larynx diseases [Abstract in English]
author Zwetsch, Iuberi Carson
author_facet Zwetsch, Iuberi Carson
Fagundes, Rubem Dutra Ribeiro
Russomano, Thais
Scolari, Diogo
author_role author
author2 Fagundes, Rubem Dutra Ribeiro
Russomano, Thais
Scolari, Diogo
author2_role author
author
author
dc.contributor.author.fl_str_mv Zwetsch, Iuberi Carson
Fagundes, Rubem Dutra Ribeiro
Russomano, Thais
Scolari, Diogo
description Aims: To present a new Digital Signal Processing procedure to evaluate voice disorders, specifically those related to the benign larynx diseases. Methods: Recorded acoustic signals of normal and abnormal voices of outpatients subjected to videolaryngoscopy had been digitalized for the study of the alterations in vocal acoustics. Window and cepstral analysis were applied on these signals. Results: Through the observation of the different alterations in the voices, it was possible to develop a set of parameters of analysis that allowed a coherent diagnosis of larynx alterations, based in the cepstral findings. Cases randomly selected, who had not participated of the study, had been identified only through the information of the set of parameters, with 80% of rightness, significantly validating the method. Conclusions: This computing method is very efficient and non-invasive, successfully identifying vocal alterations by cepstral analysis. KEY WORDS: LARYNX DISEASES; CEPSTRUM; CEPSTRAL ANALYSIS.
publishDate 2007
dc.date.none.fl_str_mv 2007-10-03
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://revistaseletronicas.pucrs.br/scientiamedica/article/view/1912
url https://revistaseletronicas.pucrs.br/scientiamedica/article/view/1912
dc.language.iso.fl_str_mv por
eng
language por
eng
dc.relation.none.fl_str_mv https://revistaseletronicas.pucrs.br/scientiamedica/article/view/1912/1417
https://revistaseletronicas.pucrs.br/scientiamedica/article/view/1912/7990
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Editora da PUCRS - ediPUCRS
publisher.none.fl_str_mv Editora da PUCRS - ediPUCRS
dc.source.none.fl_str_mv Scientia Medica; Vol. 16 No. 3 (2006); 109-114
Scientia Medica; v. 16 n. 3 (2006); 109-114
1980-6108
1806-5562
reponame:Scientia Medica (Porto Alegre. Online)
instname:Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS)
instacron:PUC_RS
instname_str Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS)
instacron_str PUC_RS
institution PUC_RS
reponame_str Scientia Medica (Porto Alegre. Online)
collection Scientia Medica (Porto Alegre. Online)
repository.name.fl_str_mv Scientia Medica (Porto Alegre. Online) - Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS)
repository.mail.fl_str_mv scientiamedica@pucrs.br || editora.periodicos@pucrs.br
_version_ 1809101748510392321

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