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. Author manuscript; available in PMC: 2011 Jul 1.
Published in final edited form as: J Phon. 2010 Jul 1;38(3):375–387. doi: 10.1016/j.wocn.2010.03.002

Fig. 4.

Fig. 4

Means and standard errors for constriction degree (CD) for the front series (a) and back series (b) of vowels for 39 speakers of American English, measured from XRMB (black), acoustically reconstructed (dark gray).