Damping of human vocal folds vibration

0558351 - ÚT 2023 CZ eng C - Konferenční příspěvek (zahraniční konf.)
Radolf, Vojtěch - Horáček, Jaromír - Bula, Vítězslav - Geneid, A. - Laukkanen, A. M.
Damping of human vocal folds vibration.
Engineering mechanics 2022. Book of full texts. Prague: Institute of Theoretical and Applied Mechanics of the Czech Academy of Sciences, 2022 - (Fischer, C.; Náprstek, J.), s. 321-324, č. článku 75. ISBN 978-80-86246-48-2. ISSN 1805-8248. E-ISSN 1805-8256.
[Engineering Mechanics 2022 - International Conference /27./28./. Milovy (CZ), 09.05.2022-12.05.2022]
Institucionální podpora: RVO:61388998
Klíčová slova: damping ratio measurement * phonation offset * high-speed videolaryngoscopy
Obor OECD: Acoustics
https://www.engmech.cz/improc/2022/321.pdf

This study investigates the biomechanics of the end-part of phonation, i.e. the so-called phonation offset, experimentally. This information of vocal fold damping is important for testing and further development of mathematical modelling of phonation. The measurements of the damping ratio, based on high-speed videolaryngoscopic registrations, were realized on a male subject phonating on the vowel [o:]. The results show during the phonation offset a remarkable decrease of vibration frequency of the vocal folds and an increased damping ratio limiting to the value D≈ 0.2. The results for vocal folds’ damping are in agreement with previous measurements performed on humans using different methods.
Trvalý link: https://hdl.handle.net/11104/0338004