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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. 2.

Fig. 2

Vowel /a/ area function (top panel) from Fant (1960), with antisymmetric (second panel) and symmetric components (third panel), and reconstruction of the area function from its Fourier components. Bottom panel shows the spatial “spectrum” for /a/.