IPA Vowel Chart - Understanding Cardinal Vowels and Articulation #2288798 (License: Personal Use)

This diagram represents the International Phonetic Alphabet (IPA) vowel quadrilateral, illustrating how vowels are categorized by tongue position-height (close to open) and backness (front to back)-along with lip rounding. Cardinal vowels (e.g., [i], [u], [a]) serve as reference points for describing vowel sounds across languages. Diagonal lines indicate centralization or diphthongal movement between vowels.

Used in linguistics education, phonetics courses, language learning resources, and speech therapy materials; targets students, teachers, and researchers seeking to understand vowel articulation and transcription.