Analysis of measured and simulated supraglottal acoustic waves

Fraile Muñoz, Rubén; Evdokimova, Vera V.; Evgrafova, Karina V.; Godino Llorente, Juan Ignacio y Skrelin, Pavel A. (2015). Analysis of measured and simulated supraglottal acoustic waves. "Journal of Voice" ; pp. 1-16. ISSN 0892-1997. https://doi.org/10.1016/j.jvoice.2015.08.006.

Descripción

Título: Analysis of measured and simulated supraglottal acoustic waves
Autor/es:
  • Fraile Muñoz, Rubén
  • Evdokimova, Vera V.
  • Evgrafova, Karina V.
  • Godino Llorente, Juan Ignacio
  • Skrelin, Pavel A.
Tipo de Documento: Artículo
Título de Revista/Publicación: Journal of Voice
Fecha: Septiembre 2015
Materias:
Palabras Clave Informales: Speech analysis; Biomedical acoustics; Biomechanical modeling; Voice production modeling & simulation
Escuela: E.T.S.I. y Sistemas de Telecomunicación (UPM)
Departamento: Teoría de la Señal y Comunicaciones
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

To date, although much attention has been paid to the estimation and modeling of the voice source (ie, the glottal airflow volume velocity), the measurement and characterization of the supraglottal pressure wave have been much less studied. Some previous results have unveiled that the supraglottal pressure wave has some spectral resonances similar to those of the voice pressure wave. This makes the supraglottal wave partially intelligible. Although the explanation for such effect seems to be clearly related to the reflected pressure wave traveling upstream along the vocal tract, the influence that nonlinear source-filter interaction has on it is not as clear. This article provides an insight into this issue by comparing the acoustic analyses of measured and simulated supraglottal and voice waves. Simulations have been performed using a high-dimensional discrete vocal fold model. Results of such comparative analysis indicate that spectral resonances in the supraglottal wave are mainly caused by the regressive pressure wave that travels upstream along the vocal tract and not by source-tract interaction. On the contrary and according to simulation results, source-tract interaction has a role in the loss of intelligibility that happens in the supraglottal wave with respect to the voice wave. This loss of intelligibility mainly corresponds to spectral differences for frequencies above 1500 Hz.

Proyectos asociados

TipoCódigoAcrónimoResponsableTítulo
Gobierno de EspañaTEC2012-38630-C04-01Sin especificarSin especificarEvaluación multimodal de trastornos neurológicos mediante la caracterización de la voz, dinámica de los pliegues vocales y secuencias sacadicas

Más información

ID de Registro: 38299
Identificador DC: http://oa.upm.es/38299/
Identificador OAI: oai:oa.upm.es:38299
Identificador DOI: 10.1016/j.jvoice.2015.08.006
URL Oficial: http://www.sciencedirect.com/science/article/pii/S0892199715001721
Depositado por: Memoria Investigacion
Depositado el: 03 Nov 2015 17:10
Ultima Modificación: 01 Oct 2016 22:30
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