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Charting the vowel space

Abstract

The vowel quadrilateral of the International Phonetic Association, couched entirely in articulatory terms, distorts in a number of ways the phonetic and phonological reality of the vowel space. It implies that cardinal vowels are articulatorily equidistant, which they are not. It is four-cornered, whereas acoustic and phonological evidence suggests a triangular space. It obscures the markedness relations of the vowels, so that its eight corner vowels are an unnatural set, including common and very rare vowels. A genuinely sound-based chart avoids these distortions and offers the possibility of an objectively standardized set of reference qualities.

Abstract

The vowel quadrilateral of the International Phonetic Association, couched entirely in articulatory terms, distorts in a number of ways the phonetic and phonological reality of the vowel space. It implies that cardinal vowels are articulatorily equidistant, which they are not. It is four-cornered, whereas acoustic and phonological evidence suggests a triangular space. It obscures the markedness relations of the vowels, so that its eight corner vowels are an unnatural set, including common and very rare vowels. A genuinely sound-based chart avoids these distortions and offers the possibility of an objectively standardized set of reference qualities.

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