Retrieving "Exhaled Air" from the archives

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1. Aperture

   Linked via "exhaled air"

   A high vowel (e.g., [i] as in see) is produced with a narrow vocal aperture, meaning the tongue] is raised high in the mouth], restricting airflow] significantly but without causing friction. Conversely, a low vowel (e.g., [a] as in father) is characterized by a wide aperture, where the tongue] is positioned low, maximizing the oral passage area] .
   The aperture in phonetics] is closely linked to the concept of *[vocal viscosity](/entries/vocal-…