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Assessment of the variability of vocal fold dynamics within and between recordings with high-speed imaging and by phonovibrogram§

Authors

  • Melda Kunduk PhD,

    Corresponding author
    1. Department of Communications Sciences and Disorders, Louisiana State University, Baton Rouge, Louisiana, U.S.A.
    2. Department of Otolaryngology–Head and Neck Surgery, Louisiana State University Health Sciences Center, Baton Rouge, Louisiana, U.S.A.
    • Louisiana State University–Communications Sciences and Disorders, 64 Hatcher Hall, Baton Rouge, Louisiana 70803
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  • Michael Doellinger PhD,

    1. Department of Communications Sciences and Disorders, Louisiana State University, Baton Rouge, Louisiana, U.S.A.
    2. Department of Phoniatrics and Pediatric Audiology, University Hospital Erlangen Medical School, Erlangen, Germany
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  • Andrew J. McWhorter MD,

    1. Department of Otolaryngology–Head and Neck Surgery, Louisiana State University Health Sciences Center, Baton Rouge, Louisiana, U.S.A.
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  • Joerg Lohscheller PhD

    1. Department of Communications Sciences and Disorders, Louisiana State University, Baton Rouge, Louisiana, U.S.A.
    2. Department of Phoniatrics and Pediatric Audiology, University Hospital Erlangen Medical School, Erlangen, Germany
    3. Trier University of Applied Sciences, Department of Computer Science, Trier, Germany
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  • Presented at the American Laryngological Association Meeting, Phoenix, Arizona, U.S.A. May 27–28, 2009.

  • This work was supported by Louisiana State University, College of Arts and Sciences, Faculty Research Grant 2008, and Deutsche Forschungsgemeinschaft (DFG) grants no. LO1413/2-1, and no. FOR 894/1.

  • §

    The authors have no other funding, financial relationships, or conflicts of interest to disclose.

Abstract

Objectives/Hypothesis:

The goal of the study was to assess the variability of healthy vocal fold dynamics. Quantitative parameters describing mean regularity and vibration characteristics of vocal fold dynamics along the entire glottal axis were analyzed.

Study Design:

Prospective study with 14 young healthy females with no history of voice problems. High-speed videoendoscopy was used to capture vocal fold vibratory characteristics while subjects were producing vowel /i/ with comfortable pitch and loudness over three different recording sessions.

Methods:

The analysis of the data was achieved by using the objective image analysis technique, phonovibrography.

Results:

The objective analysis of the high-speed video data showed no statistically significant changes in endoscopic voice parameters for normal young female voices.

Conclusions:

Analysis suggests that endoscopic parameters obtained from phonovibrograms are consistent from day to day in normal voices. Further studies are needed to objectively rate the presence and degree of these parameters in disordered voices. Laryngoscope, 2010

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