We'll start by understanding this basic concept.
5 minutes 44 seconds
Reading
Ladefoged (Elements) – Chapter 5 – Resonance
Now we turn to speech production, and resonance is how the vocal tract shapes the quality of sound, to produce different vowels, for example.
Handbook of phonetic sciences – Ch 20 – Intro to Signal Processing for Speech
Written for a non-technical audience, this gently introduces some key concepts in speech signal processing.