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The Vocal Tract as a Quarter-Wavelength Resonating Tube

Where formants physically come from. A tube closed at the glottis and open at the lips resonates at odd quarter-wavelengths of its length, and those resonances are the formants the reused Idea already names. Kept free of worked magnitudes because no tube-model figure appears in the seed paper and the brief forbids uncited numbers; the relationship is taught as a relationship.

Questions this Concept answers

Why does the uniform tube model place the vocal tract's resonances at odd multiples of a quarter wavelength?

jeremy Text

Which way to the dawn of speech?: Reanalyzing half a century of debates and data in light of speech

This paper reviews the debate over when speech-capable vowel production arose, and to do so it teaches the acoustics a reader needs from the ground up. It presents source-filter theory (a glottal sou…