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. Author manuscript; available in PMC: 2013 Sep 26.
Published in final edited form as: J Acoust Soc Am. 2013 Jan;133(1):365–376. doi: 10.1121/1.4768798

Figure 4.

Figure 4

Power spectra of the “single formant” vowels. Each row corresponds to a different F0, with low F0 stimuli at the top. The columns show the amplitude spectra (in black) from left to right of the first formant of /u/, the first formant of /ε/, the second formant of /u/ and the second formant of /ε/. The spectra in gray are the complete, four-formant, vowels.