A vowel produced with a wider mouth opening will have a higher first formant than a vowel produced with a narrower mouth opening.

Question

Quizplus · Accepted Answer

The first formant frequency is inversely related to the volume of the oral cavity: a wider mouth opening increases the volume, lowering the frequency of the first formant, while a narrower mouth opening decreases the volume, raising the frequency of the first formant.

A Vowel Produced with a Wider Mouth Opening Will Have