Bernoulli principle

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In phonetics, the Bernoulli Principle is an aerodynamic principle involved in vibration of the vocal folds.

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Air pressure from the lungs opens the glottis during each vibration. The folds come together again during each vibration because of their inherent elasticity and the sudden pressure drop between the folds as the air streams through the open glottis.

Link

Utrecht Lexicon of Linguistics

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