Experimental modelling of glottal area declination rate in vowel and resonance tube phonation

0518865 - ÚT 2020 RIV IT eng C - Conference Paper (international conference)
Horáček, Jaromír - Radolf, Vojtěch - Bula, Vítězslav - Laukkanen, A. M.
Experimental modelling of glottal area declination rate in vowel and resonance tube phonation.
Models and analysis of vocal emissions for biomedical applications. Firenze: Firenze University Press, 2019 - (Manfredi, C.), s. 205-207. ISBN 978-88-6453-951-5. ISSN 2704-601X.
[International workshop Models and analysis of vocal emissions for biomedical applications /11./. Firenze, Italy (IT), 17.12.2019-19.12.2019]
R&D Projects: GA ČR(CZ) GA19-04477S
Institutional support: RVO:61388998
Keywords : glottal closing * velocity * MADR * impact stress * voice therapy by using tubes
OECD category: Acoustics

The aim of this study was to investigate how the maximum area declination rate (MADR) corresponds to the maximum velocity of the vocal folds (VFs) just before collision. The measurements performed for phonation on vowel [u:] were compared with those obtained during phonation through a glass resonance tube with the distal end in air or submerged 10 cm in water. The results show that the glottal area declination rate just before the glottal closure is substantially lower than the MADR, and also lower in phonation through a tube into air and into water than in vowel phonation. Thus, the results suggest the impact stress in tube therapy is lower than in vowel phonation.
Permanent Link: http://hdl.handle.net/11104/0304317