“…Voice source changes occur with an epilaryngeal constriction. Constricting the ventricular folds leads to a tense, pressed, or laryngealized voice quality with an overall lowered or flatter spectral tilt, due to the increased energy above the first harmonic (Halle & Stevens, 1969;Hanson et al, 2001;Klatt & Klatt, 1990;Laver, 1980Laver, , 1994Moisik, 2013b;Stevens, 1977Stevens, , 1998Sundberg & Askenfelt, 1981). When an epilaryngeal constriction is caused by an aryepiglottic fold constriction an 'enhanced' voice quality, especially in singing, can be seen Story, 2016;Titze, 2008;Titze & Story, 1997).…”