Objective: Since Tomatis® Listening Training is said to activate the auditory and attention circuits of the brain, we wanted to see if there was a synergistic benefit from combining it simultaneously with speech therapy. Methods: In the first case, a fourteen-year-old girl with Autism and no speech despite eight previous courses of speech therapy, received 30 hours of Tomatis® Listening Training, followed by ten months of three weekly one-hour sessions of simultaneous speech therapy and Tomatis® Listening Training. In the second case, a nine-year-old boy with Attention Deficit Hyperactivity Disorder, Auditory Processing Disorder, poor school performance, and secondary impaired phonemic awareness, received simultaneous speech therapy and Tomatis® Listening Training. Results: The girl in case one now has functional use of 34 words and 17 sounds and has had many social improvements. The boy in case two went from a phonemic awareness rating level of mid second grade to a rating of beginning fifth grade in a period of four months, which is faster than usual.