Analysis of vocal-fold vibrations from high-speed laryngeal images using a Hilbert transform-based methodology

Yuling Yan, Kartini Ahmad, Melda Kunduk, Diane Bless

Research output: Contribution to journalArticle

89 Citations (Scopus)

Abstract

This paper presents a Hilbert transform-based approach to analyze vocal fold vibrations in human subjects exhibiting normal and abnormal voice productions. This new approach is applied to the analysis of glottal area waveform (GAW) and is capable of providing useful information on the vocal fold vibration. The GAW is extracted from high-speed laryngeal images by delineating the glottal edge for each image frame. An analytic signal is generated through the Hilbert transform of the GAW, which yields a recognizable pattern of the vocal fold vibration in the analytic phase plane. The vibratory pattern is comprehensive and can be correlated with specific voice conditions. Quantitative measures of the glottal perturbation are introduced using the analytic amplitude and instantaneous frequency obtained from the analysis. Examples of clinical voice recordings are used to evaluate and test the effectiveness of this approach in providing qualitative representation and quantitative characteristics of vocal fold vibratory behavior. The results demonstrate the potential of using this new analytical tool incorporated with the high-speed laryngeal imaging modality for clinical voice assessment.

Original languageEnglish
Pages (from-to)161-175
Number of pages15
JournalJournal of Voice
Volume19
Issue number2
DOIs
Publication statusPublished - Jun 2005
Externally publishedYes

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Vocal Cords
Vibration

Keywords

  • Analytic phase plot
  • Glottal area waveform
  • High-speed laryngeal imaging
  • Hilbert transform
  • Vocal-fold vibration

ASJC Scopus subject areas

  • Otorhinolaryngology

Cite this

Analysis of vocal-fold vibrations from high-speed laryngeal images using a Hilbert transform-based methodology. / Yan, Yuling; Ahmad, Kartini; Kunduk, Melda; Bless, Diane.

In: Journal of Voice, Vol. 19, No. 2, 06.2005, p. 161-175.

Research output: Contribution to journalArticle

Yan, Yuling ; Ahmad, Kartini ; Kunduk, Melda ; Bless, Diane. / Analysis of vocal-fold vibrations from high-speed laryngeal images using a Hilbert transform-based methodology. In: Journal of Voice. 2005 ; Vol. 19, No. 2. pp. 161-175.
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