Auditory processing is a term used to describe what happens when your brain recognizes and interprets the sounds around you. Humans hear when energy that we recognize as sound travels through the ear and is changed into electrical information that can be interpreted by the brain. The “disorder” part of auditory processing disorder means that something is adversely affecting the processing or interpretation of the information.
A child with APD has normal hearing, but something goes wrong when what they hear travels to the brain and the brain then has difficulty making sense of the information that is heard. This results in difficulties with listening and understanding what is heard.

National Institute on Deafness and Other Communication Disorders
Council for Exceptional Children
Information Center on Disabilities and Gifted Education
Aritcle by Mignon M. Schminky and Jane A. Baran
Department of Communication Disorders
University of Massachusetts, Amherst, Massachusetts