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. Author manuscript; available in PMC: 2012 Apr 1.
Published in final edited form as: J Phon. 2011 Apr 1;39(2):156–157. doi: 10.1016/j.wocn.2011.01.002

Figure 5.

Figure 5

F1 and F2 frequencies of three Japanese vowels and four similar English vowels produced by NJ Child Group at Time 1 (a) and at Time 2 (b) are shown (English vowels are marked with parentheses).