000003696 001__ 3696
000003696 005__ 20141118153350.0
000003696 04107 $$acze
000003696 046__ $$k2013-05-13
000003696 100__ $$aHoráček, J.
000003696 24500 $$aEXPERIMENTAL INVESTIGATION OF AIR PRESSURE, ACOUSTIC CHARACTERISTICS AND VIBRATIONS OF VOCAL FOLDS ON A COMPLEX PHYSICAL MODEL OF PHONATION IN HUMANS

000003696 24630 $$n19.$$pEngineering Mechanics 2013
000003696 260__ $$bInstitute of Thermomechanics AS CR, v.v.i., Praha
000003696 506__ $$arestricted
000003696 520__ $$2eng$$aThe 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.

000003696 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000003696 653__ $$abiomechanics of voice; subglottal, oral and transglottal pressure; flow resistance

000003696 7112_ $$aEngineering Mechanics 2013$$cSvratka (CZ)$$d2013-05-13 / 2013-05-16$$gEM2013
000003696 720__ $$aHoráček, J.$$iLaukkanen, A. M.$$iVeselý, J.$$iBula, V.$$iRadolf, V.
000003696 8560_ $$ffischerc@itam.cas.cz
000003696 8564_ $$s2614661$$uhttp://invenio.itam.cas.cz/record/3696/files/102_Horacek_J-FT.pdf$$y
             Original version of the author's contribution as presented on CD, BIO.
            
000003696 962__ $$r3632
000003696 980__ $$aPAPER