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18.1 Default intonation

This is the simplest form of intonation and offers the modules Intonation_Default and Intonation_Targets_Default. The first of which actually does nothing at all. Intonation_Targets_Default simply creates a target at the start of the utterance, and one at the end. The values of which, by default are 130 Hz and 110 Hz. These values may be set through the parameter duffint_params for example the following will general a monotone at 150Hz.

(set! duffint_params '((start 150) (end 150)))
(Parameter.set 'Int_Method 'DuffInt)
(Parameter.set 'Int_Target_Method Int_Targets_Default)