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The word “bus” for (1) 0 semitone change in F0 and a 0 semitone change in VTL (female voice); (2) 12 semitone change in F0 and 0 semitone change in VTL; (3) 0 semitone change in F0 and 3.6 semitone change in VTL; and (4) 12 semitone change in F0 and 3.6 semitone change in VTL (male voice).
