Acoustic Articulatory Analysis
Mostrando 1-8 de 8 artigos, teses e dissertações.
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1. CARACTERIZAÇÃO DOS FONES [s] E [ʃ] POR MEIO DA ANÁLISE ACÚSTICA / CHARACTERIZATION OF PHONES [s] AND [ʃ] THROUGH ACOUSTIC ANALYSIS
The typical phonological development and phonological disorders are object of continuous studies in speech area, in order to characterize aspects such as phonemes acquisition, strategies of repairing presents in subjects produtions, articulatory and acoustic characteristics of sounds. In the last aspect, it becomes important, the comparison of speech data of
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 03/03/2011
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2. Análise acústico-articulatória de sons vocálicos de palavras funcionais do inglês. / ACOUSTIC ANALYSIS OF SOUNDS-articulatory Vocal FUNCTIONAL ENGLISH WORD
The present research has as its main objective to investigate the acoustic-articulatory characteristics of vowel sounds in English function words, as realized by intermediate Brazilian English as a foreign language (EFL) students, in stressed and non-stressed contexts. Previous research pointed out that Brazilian EFL students present difficulties in realizin
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 24/08/2010
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3. Brazilian Portugueses nasal diphthongation: an acoustic and aerodynamic analysis of speech / A ditongação nasal no português brasileiro: uma análise acústico-aerodinâmica da fala
There are several studies that characterize the nasal vowels. However, there are few studies about the nasal diphthongation. This phenomenon emerges from the articulatory gestures constellation. This can be noted by analyzing of the acousticaerodynamics parameters. The aim of this work is study the gesture configuration between the thong movement and the vel
Publicado em: 2010
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4. Perception and production of speech in a hearing impaired child during therapy / Percepção e produção de sons de fala em uma criança com deficiência auditiva em terapia fonoaudiológica
Introduction: Very few studies discuss speech development in hearing impaired children in the first years of life due to methodological difficulties and the number of variables involved. Acoustic inspection of articulatory adjustments and attempts to imitate a model made by the infant in different contexts can be a method to comprehend the manner in which fi
Publicado em: 2008
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5. A percepção de plosivas alveolares na produção de um sujeito com deficiência auditiva: um estudo fonético acústico / The perception of alveolar plosives produced by a hearing-impaired subject: an acoustic phonetic study
Hearing impairment affects speech production and perception. One of the difficulties the hearing-impaired faces is producing/perceiving the contrast between voiced and voiceless sounds, mainly those which are characterized by a total obstruction between articulators such is the case of plosives, which happen to be one of the highest frequency sounds in Portu
Publicado em: 2007
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6. Supraglottic vocal tract shaping in the production of brazilian portuguese vowels: data from magnetic resonance imaging / Configuração do trato vocal supraglótico na produção das vogais do português brasileiro: dados de imagens de ressonância magnética
To characterize the supraglottic vocal tract shaping in the production of the seven oral and five nasal vowels of brazilian portuguese from the articulatory point of view by means of magnetic resonance imaging (MRI). Methods: The subject of this study, one female native speaker of brazilian portuguese, had no previous alterations of speech, language or of ne
Publicado em: 2006
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7. Acoustic-articulatory mapping in vowels by locally weighted regression
A method for mapping between simultaneously measured articulatory and acoustic data is proposed. The method uses principal components analysis on the articulatory and acoustic variables, and mapping between the domains by locally weighted linear regression, or loess [Cleveland, W. S. (1979). J. Am. Stat. Assoc. 74, 829–836]. The latter method permits local
Acoustical Society of America.
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8. Articulatory deficits in parkinsonian dysarthria: an acoustic analysis.
Twelve patients with idiopathic Parkinson's disease had acoustic speech analysis of sentence utterances to provide information on speech tempo and accuracy of articulation. As a measure of rate of speech the duration of opening-closing movements during articulation was determined from speech wave variables. The intensity of sound emission during articulatory