Types of Loss

APD, also known as central auditory processing disorder, isn't hearing loss or a learning disorder. It means your brain doesn't "hear" sounds in the usual way. It's not a problem with understanding meaning.

Conductive hearing loss occurs when there is a problem conducting sound waves anywhere along the route through the outer ear, tympanic membrane (eardrum), or middle ear . This type of hearing loss may occur in conjunction with sensorineural hearing loss (mixed hearing loss) or alone.

A mixed hearing loss is a combination of a conductive hearing loss and a sensorineural hearing loss. Definition of mixed hearing loss Sometimes a conductive hearing loss occurs in combination with a sensorineural hearing loss (SNHL).

Sensorineural hearing loss (SNHL) is a type of hearing loss, or deafness, in which the root cause lies in the inner ear or sensory organ (cochlea and associated structures) or the vestibulocochlear nerve (cranial nerve VIII).