The Hearing Aid Research Laboratory is devoted to the evaluation and refinement of existing amplification and cochlear implant technology; the examination of basic differences in the total listening experience of listeners with normal and impaired hearing; the development and refinement of amplification selection, fitting, adjustment, and counseling techniques; the improvement of hearing aid affordability and accessibility while maintaining appropriate outcomes; and the development, evaluation, and design of coupling technologies, hearing protection devices, and signal processing schemes for hearing aids and cochlear implants. The Vanderbilt Bill Wilkerson Center consists of a multidisciplinary team of clinical audiologists, speech‑language pathologists, auditory rehabilitation researchers, vestibular researchers, physical therapists, occupational therapists, neuroscientists, physicians, and support personnel focused on improving the health care of patients with auditory and balance impairments.