Analysis of Measured and Simulated Supraglottal Acoustic Waves

Rubén Fraile, Vera V. Evdokimova, Karina V. Evgrafova, Juan I. Godino-Llorente, Pavel A. Skrelin

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

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
Original languageEnglish
Pages (from-to)518–528
JournalJournal of Voice
Volume30
Issue number5
DOIs
StatePublished - 2016

Scopus subject areas

  • Computer Science(all)

Keywords

  • Speech analysis
  • Biomedical acoustics
  • Biomechanical modeling
  • Voice production modeling & simulation

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