Dimensional Analysis of a Full Vowel Set
Richard D. Wright · The Journal of the Acoustical Society of America · 1972
Previous investigators (Li et al.; Pols et al.; Singh; Watanabe; Wright and Boehm) have reported on the dimensional analysis of sets of Dutch and English vowels. The present investigation used a vowel set larger than that available in any of the single-language sets previously analyzed. The vowel set used contained all combinations of high-low, back-front, and rounded-unrounded distinctions. Representative spectra were measured for twenty-two vowels and analyzed for principal components. The resulting dimensions of maximum variance are compared to the previously reported physical and perceptual dimensions for vowel sounds.