How Tongue Height and Advancement Move F1 and F2
The articulation-to-acoustics mapping, which is the payoff of reusing Vowel Height & Backness rather than restating it. A constriction at a different point along the tube changes the tube's resonances, so tongue height tracks F1 inversely and tongue advancement tracks F2. Needed before the vowel space node, and needed before a student can read F1 of [a] or F4 of [i] as anything but a label.
Questions this Concept answers
- Why does moving the tongue change formant frequencies at all?
Vowel - Wikipedia
The article describes vowels as sounds made with an open vocal tract and lays out the articulatory parameters — height, backness, roundedness, nasality, tenseness, tongue root — before connecting the…