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Inicio Acta Otorrinolaringológica Española Evaluación espectral cuantitativa de la hipofunción vocal
Journal Information
Vol. 55. Issue 7.
Pages 327-333 (September 2004)
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Vol. 55. Issue 7.
Pages 327-333 (September 2004)
Evaluación espectral cuantitativa de la hipofunción vocal
Quantitative spectral evaluation of vocal hypofunction
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F. Núñez Batalla1,a
Corresponding author
fnunezb@seorl.net

Faustino Núñez Batalla. C/ Las Mazas, 40. 33191 Oviedo
, P. Corte Santos2, B. Señaris González1, N. Rodríguez Prado1, C. Suárez Nieto1
1 Servicio de otorrinolaringología. hospital universitario central de asturias. oviedo
2 Unidad de foniatría. hospital cabueñes de gijón
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Resumen

El propósito del presente estudio es el de explorar la interacción entre la astenia vocal y la predicción acústica de la hipofunción vocal. Ciento siete muestras de voz de edema de Reinke fueron clasificadas usando el sistema GRBAS. Se utilizaron siete parámetros acústicos para predecir la severidad perceptual de astenia. Las pruebas de regresión logística mostraron que la pérdida de componentes armónicos en las porciones medias y altas del espectro son útiles para la predicción de la astenia vocal. Se propone una clasificación espectrográfica de la hipofunción vocal

Palabras clave:
Voz
Análisis acústico
Hipofunción vocal
Evaluación perceptual
Abstract

The purpose of this study was to explore the interaction between voice asthenicity and the acoustic prediction of vocal hypofunction. One hundred and seven phonatory samples of Reinke´s edema were categorized by listeners using GRBAS scale. Seven frequency and time domain parameters were used to predict perceptual severity of asthenicity. Logistic regresion analysis showed that a useful measure for the prediction of asthenicity was the loss of harmonic components in the middle and upper portion of the spectrum. A spectral classification of vocal hypofunction is proposed

Key words:
Voice
Acoustic analysis
Vocal hypofunction
Perceptual rating

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