Název: Estimation of damping in human vocal folds vibration: measurements in vivo and on model
Autoři: Horáček, Jaromír ; Radolf, Vojtěch ; Bula, Vítězslav ; Košina, Jan ; Geneid, A. ; Laukkanen, A. M.
Typ dokumentu: Příspěvky z konference
Konference/Akce: International colloquium DYMAMESI 2022, Prague (CZ), 20220301
Rok: 2022
Jazyk: eng
Abstrakt: This study investigates the biomechanics of the end-part of phonation, i.e. the so-called phonation offset, experimentally. This information of vocal folds 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 in vivo on a male subject and in vitro using an originally developed silicon replica of the human vocal folds. In both cases the results show remarkable decrease of vibration frequency of the vocal folds and increase of damping ratio D in the phonation offset limiting to the values D=0.12 in vivo measurement and D=0.11 in vitro measurement. The results for vocal folds’ damping are in good agreement with previous measurements performed in humans using different methods.
Klíčová slova: high-speed videolaryngoscopy; phonation offset
Zdrojový dokument: Dynamics of Machines and Mechanical Systems with Interactions, DYMAMESI 2022, ISBN 978-80-87012-78-9

Instituce: Ústav termomechaniky AV ČR (web)
Informace o dostupnosti dokumentu: Dokument je dostupný v příslušném ústavu Akademie věd ČR.
Původní záznam: http://hdl.handle.net/11104/0331394

Trvalý odkaz NUŠL: http://www.nusl.cz/ntk/nusl-508515


Záznam je zařazen do těchto sbírek:
Věda a výzkum > AV ČR > Ústav termomechaniky
Konferenční materiály > Příspěvky z konference