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.