In vivo measurements of air pressure, vocal folds vibration and acoustic characteristics of phonation into a straw and a resonance tube used in vocal exercising.

0392225 - ÚT 2014 CZ eng A - Abstrakt
Radolf, Vojtěch - Laukkanen, A. M. - Horáček, Jaromír - Veselý, Jan - Liu, D.
In vivo measurements of air pressure, vocal folds vibration and acoustic characteristics of phonation into a straw and a resonance tube used in vocal exercising.
ENGINEERING MECHANICS 2013. Praha: Insitute of Thermomechanics ASCR, v. v. i., 2013 - (Zolotarev, I.). s. 127-128. ISBN 978-80-87012-46-8. ISSN 1805-8248.
[Engineering Mechanics 2013 /19./. 13.05.2013-16.05.2013, Svratka]
Grant CEP: GA ČR GPP101/12/P579
Institucionální podpora: RVO:61388998
Klíčová slova: biomechanics of voice * subglottal, oral and transglottal pressure * phonation into tubes
Kód oboru RIV: BI - Akustika a kmity

The study investigates the differences between three most widely used methods in voice training and therapy: Phonation into a glass resonance tube (1) the outer end in the air, (2) the outer end submerged 2-10 cm below water surface in a bowl (‘water resistance therapy’ with bubbling effect), and (3) phonation into a very thin straw. One female speech trainer served as subject. Acoustic samples, electroglottographic signals and both mean and dynamic airpressures in the mouth cavity were registered for repetitions of [pu:pu], and for phonation into the tubes, while the outer end was randomly shuttered, in order to get an estimate of subglottic pressure. Both phonation threshold and ordinary, most comfortable phonation were recorded.
Trvalý link: http://hdl.handle.net/11104/0225175