coup de glotte
n.— «Actually, Mr. Johnson explained, the trick at the heart of ventriloquism isn’t “throwing” the voice but “treating” it. Thanks to a throat-muscle manipulation that opera singers call a coup de glotte, the amplitude of the emerging sound waves is constricted in a way that the human ear misinterprets as distance. Keeping the lips immobile and shifting focus supports the illusion.» —“Broadway for Dummies (and Ventriloquists)” by Jesse Green New York Times Sept. 17, 2006. (source: Double-Tongued Dictionary)
Further reading
Ever thought there ought to be an English word for this or that phenomenon? Such holes in the language are called lexical gaps. A listener in Ontario, Canada, notes that English lacks a single word for the mistake voice-to-text programs make when...
Nancy Gabriel from Ithaca, New York, recalls her father’s no-nonsense responses to minor injuries when she was a child: After making sure she was really all right, he’d say, It’s far enough from your heart; it won’t kill you. Other times he...