Auditory - perceptual assessment of degraded voices and its correlation with acoustic measures

Authors

  • Natalia Gabriela Elisei
  • Diego Alexis Evin

Keywords:

Voice disorders, Acoustic voice analysis, GRBAS, Perceptual voice analysis

Abstract

The goal is to determine using acoustic measurements, which information is the most relevant to listeners at the time of categorizing the overall degree of dysphonia. Eight voice signals were chosen (4 female voices and 4 male voices). Each voice was perceptually evaluated through the item G of GRBAS scale by 10 experienced listeners and acoustically by aperiodicity, noise and chaos measures. The statistical study by discriminant analysis shows the importance of GNE, Jit and Lyapunov Jitter_cc as parameters and predictors of overall degree of dysphonia. The application of the k-means evidence there are features in the acoustic parameters that allow us to objectively group the voices studied with 100% accuracy for class 0,96% for class 2 and 79% for class 3. A greater number and variability of cases are need to verify those preliminary results.

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Author Biographies

Natalia Gabriela Elisei

Doctora en Ciencias de la Salud y Fonoaudióloga. Centro Interdisciplinario de Investigaciones en
Psicología Matemática y Experimental Dr. Horacio J. A. Rimoldi, Consejo Nacional de Investigaciones
Científicas y Técnicas (CIIPME-CONICET). 

Diego Alexis Evin

Doctor en Ciencias de la Computación. Laboratorio de Investigaciones Sensoriales. Instituto de Neurociencias,
Hospital de Clínicas. Laboratorio LIS INIGEM. 

Published

11/27/2019

How to Cite

Elisei, N. G., & Evin, D. A. (2019). Auditory - perceptual assessment of degraded voices and its correlation with acoustic measures. Revista De Psicología, 8(16), 45–61. Retrieved from https://erevistas.uca.edu.ar/index.php/RPSI/article/view/2431

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Section

Articles