October 2026
Vowel Modification Easy Chart
To allow the larynx to function at optimal efficiency and ease, we need to modify our mouth shapes depending upon pitch. The rule is to open the jaw and mouth more as you go higher; close as you go lower. (This chart is for the female voice, but the principle is the same for males.)
Vowel-shape-for-the-mouth guide: (Notice the distances get shorter as you go higher.)
Below Middle C = UH
D-4 to A-5 = EE
B-5 to E-5 = AY
E-5 to G-5 = EH
G-5 up = AH and then short A (as in Cat) fairly quickly
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