Robust rhythm as a consequence of the universal description of complex system dynamics in the vicinity of critical point

In work the fundamental robustness property (universality) of description of a rhythm under the attitude to all variety of styles of the various speakers articulated in various conditions is considered. This universality is a corollary of critical behavior of rhythm production system. On model of an artificial neuron network of perception the equivalence of description of a rhythm both at a level of perception of speech, and at a level of speech production is established. In this paper the analogies between the mechanism ensuring universal behavior of a rhythm in range of a criticality from the point of view of theoretical physics and the mechanism ensuring constancy of speech perception from the psychology point of view on ontogenesis of child's babble toward normal speech were established.