Modelling of the influence of nasality on phonation of Czech vowels

0347979 - ÚT 2011 RIV DE eng A - Abstrakt
Radolf, Vojtěch
Modelling of the influence of nasality on phonation of Czech vowels.
AQL 2010. Erlangen: University Hospital Erlangen, 2010 - (Dollinger, M.). s. 74-74. ISBN N. ISSN N.
[International Conference on Advances in Quantitative Laryngology, Voice and Speech Research /9./. 10.09.2010-11.09.2010, Erlangen]
Grant CEP: GA ČR GA101/08/1155
Výzkumný záměr: CEZ:AV0Z20760514
Klíčová slova: nasality * transfer matrix method * vocal tract
Kód oboru RIV: BI - Akustika a kmity

Nasality caused by velopharyngeal insufficiency is modeled using the transfer matrix method in connection with conical acoustical elements in frequency domain. The vocal tract is considered as a branched system with two nasal channels. The influence of viscous losses and radiation impedance both at the lips and at the nostrils are considered. The results of modal analysis are compared with the results got from 3D FEM models.
Trvalý link: http://hdl.handle.net/11104/0188613