000008867 001__ 8867
000008867 005__ 20141204083528.0
000008867 04107 $$aeng
000008867 046__ $$k12/05/2014
000008867 100__ $$aRadolf, V.
000008867 24500 $$aAIR-PRESSURE CHARACTERISTICS AND VISUALIZATION OF BUBBLING EFFECT IN WATER RESISTANCE THERAPY

000008867 24630 $$n20.$$pEngineering Mechanics 2014
000008867 260__ $$bBrno University of Technology- Institute of Solid Mechanics, Mechatronics and Biomechanics
000008867 506__ $$arestricted
000008867 520__ $$2eng$$aThis study investigates the influence of a widely used method in voice training and therapy, phonation into a resonance tube with the outer end submerged in water (‘water resistance therapy’ with bubbling effect). Acoustic and electroglottographic (EGG) signals and air pressures in the mouth cavity were registered and the formation of bubbles was studied using high speed camera. Bubbling frequency dominates in the spectra of the pressure signal being about 15 dB higher than the amplitude of the first harmonic, which reflects the fundamental frequency of the vocal folds’ vibration. Separation of the bubbles 10 cm under water surface starts when the buoyancy force acting on the bubble is approximately equal to the aerodynamic force in the tube.

000008867 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000008867 653__ $$aBiomechanics of voice, Phonation into tubes, Voice therapy.

000008867 7112_ $$aEngineering Mechanics 2014$$cSvratka (CZ)$$d12/05/2014 - 15/05/2014$$gEM2014
000008867 720__ $$aRadolf, V.$$iHoráček, J.$$iBula, V.$$iLaukkanen, A.M.
000008867 8560_ $$ffischerc@itam.cas.cz
000008867 8564_ $$s725287$$uhttps://invenio.itam.cas.cz/record/8867/files/119-Radolf-CD.pdf$$yOriginal version of the author's contribution as presented on CD, paper No. 119.
000008867 962__ $$r70
000008867 980__ $$aPAPER