Two case studies of changes in vocal fold adjustment caused by phonation into a tube investigated by computed tomography

0395081 - ÚT 2014 RIV CZ eng A - Abstract
Hampala, V. - Laukkanen, A. M. - Guzman, M. - Horáček, Jaromír - Švec, J. G.
Two case studies of changes in vocal fold adjustment caused by phonation into a tube investigated by computed tomography.
PEVOC. Prague: Medical Healthcom, 2013 - (Domagalský, T.). s. 211-212. ISBN 978-80-260-4832-9.
[PEVOC - Pan Europian Voice Conference /10./. 21.08.2013-24.08.2013, Prague]
R&D Projects: GA ČR GAP101/12/1306
Institutional support: RVO:61388998
Keywords : biomechanics of voice * vocal folds vibration in humans * vocal folds geometry
Subject RIV: BI - Acoustics

Phonation into a tube is a widely used method for vocal training and therapy. In order to find out whether there is any change in the physical adjustment of the vocal folds, two volunteer subjects were examined with computed tomography (CT). Both produced vowel [a:] at comfortable pitch and loudness. Results showed considerable variability in the intra- and inter-individual vocal fold configuration but did not reveal any unified trends in vocal fold adjustment during and after the phonation into the tube. The data indicate that the changes of voice quality after tube phonation are more likely due to vocal tract adjustments rather than due to vocal fold adjustments.
Permanent Link: http://hdl.handle.net/11104/0225165