The objective of this research was to find out if the Tomatis® Method for auditory stimulation was a significant variable to reduce the problem of echolalia in children diagnosed with typical autism (Kanner) and atypical autism (Pervasive Development Disorder, Not Otherwise Specified, PDD-NOS) who attend the Tomatis® Centre in Puerto Rico. In order to obtain the research results, a measuring instrument was created, consisting of 12 questions for the parents of children diagnosed with ASD who followed at least the first three intensive stages (62 hours) of the Tomatis® Method.