Název: Experimental investigation of air pressure, acoustic characteristics and vibrations of vocal folds on a complex physical model of phonation in humans.
Autoři: Horáček, Jaromír ; Radolf, Vojtěch ; Bula, Vítězslav ; Veselý, Jan ; Laukkanen, A. M.
Typ dokumentu: Příspěvky z konference
Konference/Akce: Engineering Mechanics 2013 /19./, Svratka (CZ), 2013-05-13 / 2013-05-16
Rok: 2013
Jazyk: eng
Abstrakt: The contribution aims to provide material that can be used in development of more realistic physical as well as theoretical models of voice production. The experimental set-up, methodology and the results of measurement of airflow rate, subglottal, oral and generated acoustic air pressures are presented together with the simultaneously measured flow-induced vibrations of a vocal folds replica, made of soft silicon rubber, and recorded by a high speed camera. The data were measured during a ‘soft’ phonation just above the phonation onset, given by the phonation threshold airflow rate, and during a ‘normal’ phonation for the airflow rate of about three times higher. A model of the human vocal tract in the position for production of vowel [u:] was used and the flow resistance was raised by phonating into a glass resonance tube either in the air or having the other end of the tube submerged under water, and by phonating into a narrow straw. The results for the pressures presented in time and frequency domain are comparable with the physiological ranges and limits measured in humans for ordinary phonation and for production of vocal exercises used in voice therapy.
Klíčová slova: biomechanics of voice; flow resistance; subglottal, oral and transglottal pressure
Číslo projektu: GAP101/12/1306 (CEP)
Poskytovatel projektu: GA ČR
Zdrojový dokument: Engineering Mechanics 2013, ISBN 978-80-87012-47-5, ISSN 1805-8256

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/11104/0225366

Trvalý odkaz NUŠL: http://www.nusl.cz/ntk/nusl-161305


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