National Repository of Grey Literature 15 records found  previous11 - 15  jump to record: Search took 0.00 seconds. 
Akustic analysis of male vocal tract for Czech vowels
Dedouch, K. ; Švec, J. G. ; Horáček, Jaromír ; Kršek, P. ; Havlík, R. ; Vokřál, J.
The paper describes finite element models of male vocal tract designed from magnetic resonance images taken during phonation of all Czech vowels. First three formants calculated by frequency-modal analysis of the FE models are in good agreement with the data known from the Czech Phonetics.
Vibration of human skull during phonation
Vokřál, J. ; Horáček, Jaromír ; Černý, L. ; Veselý, Jan
The paper deals with experimental study of a very close relation between vibrations of human skull and his own voice. Very high correlation between the sound and vibration is demonstrated in the frequency range up to approximately 1500 Hz, and if the records of the skull vibrations are reproduced they are understandable.
Fundamental dynamic characteristics of human skull
Horáček, Jaromír ; Pešek, Luděk ; Trnka, Jan ; Veselý, Jan ; Veselý, Eduard ; Vohradník, M. ; Vokřál, J.
The contribution presents experimental investigation of the frequency modal, damping and stress wave propagation characteristics and finite element (FE) modelling of the basic dynamic properties of the human skull. Original experimental results of the modal analysis as well as the laserinterferometry and double pulse holorinterferometry measurements after impact loading are presented. The frequency and time dependent transfer functions between selected, anthropologically important points on the skull are studied.
Measurement of acoustic pressure in supraglottal spaces
Vokřál, J. ; Vohradník, M. ; Horáček, Jaromír
The aim is the measurement of acoustic pressure in supraglottal acoustic spaces by miniature microphones. The microphone was placed at the end of laryngeal wire applicator and its position was changed continually from the mouth to the vocal folds. This sources of acoustic signal were used: the own voice - vowels ´A´ and ´E´, and the electronic laryns. Natural frequencies nad acoustic mode shapes of the air vibration were investigated.

National Repository of Grey Literature : 15 records found   previous11 - 15  jump to record:
See also: similar author names
3 Vokřál, Jiří
1 Vokřál, Jonáš
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