Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Analysis of Measured and Simulated Supraglottal Acoustic Waves
Year:2015
Research Areas
  • Electronic technology and of the communications
Information
Abstract
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.
International
Si
JCR
Si
Title
Journal of Voice
ISBN
0892-1997
Impact factor JCR
0,944
Impact info
Datos JCR del año 2013
Volume
10.1016/j.jvoice.2015.08.006
Journal number
From page
1
To page
11
Month
SIN MES
Ranking
Participants
  • 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)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Informática Aplicada al Procesado de Señal e Imagen
  • Departamento: Teoría de la Señal y Comunicaciones (Provisional)
S2i 2020 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)