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Memorias de investigación
Communications at congresses:
Characterisation of tremor in normophonic voices
Year:2015
Research Areas
  • Biomedicine,
  • Electronic technology and of the communications
Information
Abstract
Vocal tremor is a low frequency instability of the voice that causes modulation of its amplitude and fundamental frequency. Among these two, frequency modulation is more relevant for perception and it has been shown to be present both in normophonic and dysphonic voices and to happen in similar frequency bands for both voice types. This paper presents a characterisation of the frequency modulating signal estimated for normophonic voices in terms of both its spectral characteristics and its statistical distribution. By using the discrete Fourier transform for data non-uniformly spaced in time domain, it is shown that the modulating signal may be either low-pass or band-pass (i.e. oscillating), though the low-pass case dominates in the analysed data. As for the values of the modulating signal, their distribution is shown to fairly fit a Gaussian distribution with a standard deviation that significantly depends on the average fundamental frequency.
International
Si
Congress
23rd Europea Signal Processing Conference (EUSIPCO), 2015
960
Place
Reviewers
Si
ISBN/ISSN
978-0-9928626-3-3
Start Date
31/08/2015
End Date
04/09/2015
From page
320
To page
324
Proceedings of the 23rd European Signal Processing Conference (EUSIPCO), 2015
Participants
  • Autor: Ruben Fraile Muñoz (UPM)
  • Autor: Nicolas Saenz Lechon (UPM)
  • Autor: Victor Jose Osma Ruiz (UPM)
  • Autor: Juana Maria Gutierrez Arriola (UPM)
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)
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