Voice Performance Evaluation of Street Children From Aracaju, Brazil Using Perceptual-Auditory and Acoustic Analyses

Voice Performance Evaluation of Street Children From Aracaju, Brazil Using Perceptual-Auditory and Acoustic Analyses

Author Sales, Neuza Josina Google Scholar
Gurgel, Ricardo Queiroz Google Scholar
Rebelo Goncalves, Maria Ines Autor UNIFESP Google Scholar
Gama, Ana Cristina Cortes Autor UNIFESP Google Scholar
Cunha, Edilson Oliveira Google Scholar
Prado-Barreto, Valeria Maria Google Scholar
Todt-Neto, Joao Carlos Google Scholar
d'Avila, Jeferson Sampaio Google Scholar
Institution Univ Fed Sergipe
Universidade Federal de São Paulo (UNIFESP)
Universidade Federal de Minas Gerais (UFMG)
Sao Lucas Hosp
Abstract Objective. To compare the voice performance of children involved in street labor with regular children using perceptual-auditory and acoustic analyses.Methods. A controlled cross-sectional study was carried out on 7- to 10-year-old children of both genders. Children from both groups lived with their families and attended school regularly; however, child labor was evident in one group and not the other. A total of 200 potentially eligible street children, assisted by the Child Labor Elimination Programme (PETI), and 400 regular children were interviewed. Those with any vocal discomfort (106, 53% and 90, 22.5%) had their voices assessed for resonance, pitch, loudness, speech rate, maximum phonation time, and other acoustic measurements.Results. A total of 106 street children (study group [SG]) and 90 regular children (control group [CG]) were evaluated. the SG group demonstrated higher oral and nasal resonance, reduced loudness, a lower pitch, and a slower speech rate than the CG. the maximum phonation time, fundamental frequency, and upper harmonics were higher in the SG than the CG. Jitter and shimmer were higher in the CG than the SG.Conclusion. Using perceptual-auditory and acoustic analyses, we determined that there were differences in voice performance between the two groups, with street children having better quality perceptual and acoustic vocal parameters than regular children. We believe that this is due to the procedures and activities performed by the Child Labor Elimination Program (PETI), which helps children to cope with their living conditions.
Keywords Speech acoustics
Spectrography
Preschool
Street children
Child labor
Language English
Date 2013-09-01
Published in Journal of Voice. New York: Mosby-Elsevier, v. 27, n. 5, p. 589-594, 2013.
ISSN 0892-1997 (Sherpa/Romeo, impact factor)
Publisher Elsevier B.V.
Extent 589-594
Origin http://dx.doi.org/10.1016/j.jvoice.2013.02.009
Access rights Closed access
Type Article
Web of Science ID WOS:000324249700008
URI http://repositorio.unifesp.br/handle/11600/36715

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