Speech development and scenario of its V-rhythms' development

Definition of acoustically measurable rhythm of speech (V-rhythm) as sequences of durations of the speech segments with presence of oscillations on frequency of the fundamental tone is introduced. It is proven theoretically and experimentally, what there is whole set or scenario (Feigenbaum scenario) of regular and irregular V-rhythms varying depending on control parameter. Also hypothesis is advanced that the dynamic aspect of verbal memory is featured by concrete part of the scenario of V-rhythms. This part is named as Pomeau-Manneville scenario.