Aryepiglottic Trilled Variants of /ʕ, ћ/ in Iraqi Arabic
نویسندگان
چکیده
Aryepiglottic (AE) trilling in the pharyngeals of Iraqi Arabic is observed, qualified and quantified using acoustic, EGG, kymographic, high-speed laryngoscopic and aperture estimate techniques. Articulatory stricture occurs at the superior AEfold borders of the epilaryngeal tube. Periodic AE vibration acts as a secondary phonation source. Quantitative evaluation of trilling frequency and duration shows a greater degree of laryngeal constriction for voiced trills. We suggest that the mucosal wave causes a phase shift amongst the driving forces acting on the AE folds, resulting in more irregular vibration than for the vocal folds.
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