Purpose Voice therapy with a semi-occluded vocal tract has a long history. The use of lip
trills, tongue trills, bilabial fricatives, humming, and phonation into tubes or straws has been …

Electroglottography (EGG) is a low-cost, noninvasive technology for measuring changes of
relative vocal fold contact area during laryngeal voice production. EGG was introduced …

Voice training techniques often make use of exercises involving partial occlusion of the
vocal tract, typically at the anterior part of the oral cavity or at the lips. In this study two …

Objective The present study aimed to investigate the vocal tract and glottal function during
and after phonation into a tube and a stirring straw. Methods A male classically trained …

Phonation into glass tubes, keeping the free end of the tube in water, has been a frequently
used voice therapy method in Finland for more than four decades. These so-called …

Introduction Semi-occluded vocal tract exercises (SOVTE) are often used in voice clinics.
SOVTE change the acoustic vocal tract impedance in relation to the glottis impedance …

Voiced obstruents and phonation into tubes are widely used as vocal exercises. They
increase the inertive reactance of the vocal tract in the 200–1000 Hz range and thereby …

Phonation into a glass tube is a voice training and therapy method that leads to beneficial
effects in voice production. It has not been known, however, what changes occur in the vocal …

Purpose Although there is a long history of use of semi-occluded vocal tract gestures in
voice therapy, including phonation through thin tubes or straws, the efficacy of phonation …

Objective The purpose of this study was to investigate the effect of phonation into tubes in air
and tubes submerged in water on air pressure variables and vocal fold adduction in subjects …