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. Author manuscript; available in PMC: 2009 Oct 13.
Published in final edited form as: Speech Commun. 2009 Jul 1;51(7):622–629. doi: 10.1016/j.specom.2008.12.003

Fig. 6.

Fig. 6

This figure shows how the DFs vary as F0 is changed from 75 Hz to 600 Hz in the region around a first formant at 600 Hz. DFs were measured for F0:s where the formant peak coincided with a harmonic and where two harmonics are symmetrically positioned above and below 600 Hz. The areas of the filled circles are proportional to the number channels at the indicated DF frequency.