Memorias de investigación
Artículos en revistas:
Analysis of Measured and Simulated Supraglottal Acoustic Waves
Año:2015
Áreas de investigación
  • Tecnología electrónica y de las comunicaciones
Datos
Descripción
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.
Internacional
Si
JCR del ISI
Si
Título de la revista
Journal of Voice
ISSN
0892-1997
Factor de impacto JCR
0,944
Información de impacto
Datos JCR del año 2013
Volumen
DOI
10.1016/j.jvoice.2015.08.006
Número de revista
Desde la página
1
Hasta la página
11
Mes
SIN MES
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Participantes
  • Autor: Ruben Fraile Muñoz UPM
  • Autor: Vera V. Evdokimova Saint Petersburg State University
  • Autor: Karina V. Evgrafova Saint Petersburg State University
  • Autor: Juan Ignacio Godino Llorente UPM
  • Autor: Pavel A. Skrelin Saint Petersburg State University
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Informática Aplicada al Procesado de Señal e Imagen
  • Departamento: Teoría de la Señal y Comunicaciones (Provisional)