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. 2014 Sep;136(3):1225–1236. doi: 10.1121/1.4890649

FIG. 6.

FIG. 6.

(Color online) Details of the spectral correction applied to one sentence manipulated by the Praat package to hold a fixed F0 pattern throughout. The filtering ensured that speech stimuli, irrespective of F0, were equalized to a RMS level of 65 dB SPL and their excitation level in regions of unresolved partials was within 0.2 dB.