Vocal Fold Articulatory Activity During Whispered Sibilants
Sandra L. Hamlet · Archives of Otolaryngology - Head and Neck Surgery · 1972
Glottal configuration during whispered /s/ and /z/ was determined using the ultrasonic pulse-echo method. Glottal configuration is different for whispered /s/ and /z/, with greater glottal constriction during whispered /z/.