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. 2016 Aug 23;6:32042. doi: 10.1038/srep32042

Figure 3. Methods for the synthesis of the stimuli.

Figure 3

The test stimuli were synthesized by combining the F0s and the VTCs from different animals. Orange line: the F0 of Monkey A; light blue line: the F0 of Monkey B. Red line: the linear predictive coding spectrum of Monkey A; blue line: the linear predictive coding spectrum for Monkey B. F0cooA-VTCcooB (bottom left) was synthesized from the F0 of Monkey A (orange) and the VTC of Monkey B (blue), whereas F0cooB-VTCcooA (bottom right) was created from the F0 of Monkey B (light blue) and the VTC of Monkey A (orange).