It this paper is proposed a normalized im relation to its centre of gravity two-formant graphic vowel systen representation for the purposes of the cross-language acoustic phonetic research. The formal reasonings are supported by normalized diagrams, in both Cartesian and polar coordinates, of the vowel systems of English, French, German and Spanish.
Keywords: speech representation, acoustic phonetics, speech acoustics, computer graphics, vowels, formants
Bibliographic reference. Christov, Philip (1993): "Normalized vowel system representation for comparative phonetic studies", In EUROSPEECH'93, 461-464.