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Vol. 59, No. 2-3, 2002
Issue release date: April–September 2002
Phonetica 2002;59:108–133

Principal Components Representation of the Two-Dimensional Coronal Tongue Surface

Slud E. · Stone M. · Smith P.J. · Goldstein Jr. M.
aMathematics Department, University of Maryland, College Park, Md., and bDepartment of Oral and Craniofacial Biological Sciences, Department of Orthodontics, University of Maryland Dental School, Baltimore, Md., USA

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This paper uses principal components (PC) analysis to represent coronal tongue contours for the 11 vowels of English in two consonant contexts (/s/, /l/), based upon five replicated measurements in three sessions for each of 6 subjects. Curves from multiple sessions and speakers were overlaid before analysis onto a common (x, y) coordinate system by extensive preprocessing of the curves including: extension (padding) or truncation within session, translation, and truncation to a common x range. Four PCs plus a mean level allow accurate representation of coronal tongue curves, but PC shapes depend strongly on the degree of padding or truncation. The PCs successfully reduced the dimensionality of the curves and reflected vowel height, consonant context, and physiological features.

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  1. Abeles, M.; Goldstein, M.: Multispike train analysis. Proc. IEEE 65: 762–773 (1977).
  2. Alwan, A.; Narayanan, S.; Haker, K.: Toward articulatory-acoustic models for liquid approximants based on MRI and EPG data. Part II. The rhotics. J. acoust. Soc. Am. 101: 1078–1089 (1997).
  3. Anderson, T.W.: An introduction to multivariate analysis (Wiley, New York 1984).
  4. Boyce, S.; Espy-Wilson, C.Y.: Coarticulatory stability in American English /r/. J. acoust. Soc. Am. 101: 3741–3753 (1997).
  5. Harshman, R.; Ladefoged, P.; Goldstein, L.: Factor analysis of tongue shapes. J. acoust. Soc. Am. 62: 693–707 (1977).
  6. Hashi, M.; Westbury, J.; Honda, K.: Vowel posture normalization. J. acoust. Soc. Am. 104: 2426–2437 (1998).
  7. Hillenbrand, J.; Getty, L.; Clark, M.; Wheeler, K.: Acoustic characteristics of American English vowels, J. acoust. Soc. Am. 97: 3099–3111 (1995).
  8. Hoole, P.: On the lingual organization of the German vowel system. J. acoust. Soc. Am. 106: 1020–1032 (1999).
  9. Jackson, M.: Phonetic theory and cross-linguistic variation in vowel articulation. UCLA Working Papers Phonet. 71 (1988a).
  10. Jackson, M.: Analysis of tongue positions: language-specific and cross-linguistic models. J. acoust. Soc. Am. 84: 124–143 (1988b).
  11. Johnson, K.; Beckman, M.: Production and perception of individual speaking styles. Ohio State Univ. Working Papers Ling. No. 50, pp. 115–125 (1997).
  12. Johnson, K.; Ladefoged, P.; Lindau, M.: Individual differences in vowel production. J. acoust. Soc. Am. 94: 701–714 (1993).
  13. Lundberg, A.; Stone, M.: Three-dimensional tongue surface reconstruction: practical considerations for ultrasound data. J. acoust. Soc. Am. 106: 2858–2867 (1999).
  14. McGowan, R.; Cushing, S.: Vocal tract normalization for midsagittal articulatory recovery with analysis by synthesis. J. acoust. Soc. Am. 106: 1090–1105 (1999).
  15. Maeda, S.: Compensatory articulation during speech: evidence from the analysis and synthesis of vocal-tract shapes using an articulatory model; in Hardcastle, Marchal, Speech production and speech modeling, pp. 131–150 (Kluwer, Dordrecht 1990).
  16. Miller, J.D.: Auditory-perceptual interpretation of the vowel. J. acoust. Soc. Am. 85: 2114–2134 (1989).
  17. Nix, D.; Papcun, G.; Hogden, J.; Zlokarnik, I.: Two cross-linguistic factors underlying tongue shapes in vowels. J. acoust. Soc. Am. 99: 3707–3717 (1996).
  18. Peterson, G.; Barney, H.: Control methods used in a study of the vowels. J. acoust. Soc. Am. 24: 175–184 (1952).
  19. Ramsay, J.; Silverman, B.: Functional data analysis (Springer, New York 1997).
  20. Scheffé, H.: The analysis of variance (Wiley, New York 1959).
  21. Stone, M.: A three-dimensional model of tongue movement based on ultrasound and x-ray microbeam data. J. acoust. Soc. Am. 87: 2207–2217 (1990).
  22. Stone, M.; Davis, E.P.: A head and transducer support system for making ultrasound images of tongue/jaw movement. J. acoust. Soc. Am. 98: 3107–3112 (1995).
  23. Stone, M.; Goldstein, M.; Zhang, Y.: Principal component analysis of cross sections of tongue shapes in vowel production. Speech Commun. 22: 173–184 (1997).
  24. Stone, M.; Lundberg, A.: Three-dimensional tongue surface shapes of English consonants and vowels. J. acoust. Soc. Am. 99: 3728–3737 (1996).
  25. Stone, M.; Vatikiotis-Bateson, E.: Trade-offs in tongue, jaw and palate contributions to speech production. J. Phonet. 23: 81–100 (1995).
  26. Unser, M.; Stone, M.: Automated detection of the tongue surface in sequences of ultrasound images, J. acoust. Soc. Am., 94: 3001–3007 (1991).
  27. Yehia, H.; Tiede,M.: A parametric three-dimensional model of the vocal tract based on MRI data. Proc. ICASSP-97, Munich (1997)

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