Vocal tract settings in speakers suffering from obstructive sleep apnea síndrome

Blanco Murillo, José Luis and Schoentgen, Jean (2013). Vocal tract settings in speakers suffering from obstructive sleep apnea síndrome. In: "8th International Workshop on Models and Analysis of Vocal Emissions for Biomedical Applications (MAVEBA 2013)", 16/12/2013 - 18/12/2013, Firenze, Italy. pp. 211-214.

Description

Title: Vocal tract settings in speakers suffering from obstructive sleep apnea síndrome
Author/s:
  • Blanco Murillo, José Luis
  • Schoentgen, Jean
Item Type: Presentation at Congress or Conference (Article)
Event Title: 8th International Workshop on Models and Analysis of Vocal Emissions for Biomedical Applications (MAVEBA 2013)
Event Dates: 16/12/2013 - 18/12/2013
Event Location: Firenze, Italy
Title of Book: 8th International Workshop on Models and Analysis of Vocal Emissions for Biomedical Applications (MAVEBA 2013)
Date: 2013
Subjects:
Freetext Keywords: Obstructive sleep apnea (OSA), spectral analysis of speech, vocal tract settings, long-term average spectrum (LTAS), pharyngeal narrowing
Faculty: E.T.S.I. Telecomunicación (UPM)
Department: Señales, Sistemas y Radiocomunicaciones
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Automatic systems based on speech signal analysis for the early dete ction of obstructive sleep apnea (OSA) have achieved fairly high performance rates in recent years. However, a satisfactory explanation of these results has not been available. This presentation aims at explaining via an examination of the long-term spectra of OSA patients and normal control speakers these systems’ ability to discover OSA speakers on the base of all-purpose cepstral coefficients. An in terpretation of the long- term spectra in terms of the underlying tract settings suggests that the speech of OSA patients is characterized by a pharyngeal narrowing that may be captured by acoustic cues of the spectral contour of windowed speech frames. A novel interpretation of long-term spectra in terms of the first principal component of the temporal sequence of short-term amplitude-spectra is also discussed.

More information

Item ID: 28943
DC Identifier: http://oa.upm.es/28943/
OAI Identifier: oai:oa.upm.es:28943
Deposited by: Memoria Investigacion
Deposited on: 15 Jun 2014 08:12
Last Modified: 22 Sep 2014 11:43
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