The Heuser Hearing Institute is a multi-specialty nonprofit campus that promotes the needs of children and adults with disorders of hearing and balance. The Heuser Hearing Institute began in 1948 as the Louisville Deaf Oral School, and today serves Louisville and the surrounding region with an expanded mission that includes education, clinical care, and research components. Researchers at Heuser study spatial hearing, speech perception, and language development. All are affiliated with the University of Louisville. Additional information about research at Heuser is available at: https://thehearinginstitute.org/about/research/. Sonova, headquartered in Staefa, Switzerland, is the leading manufacturer of innovative hearing care solutions worldwide. The group operates through its core business brands – Phonak, Unitron, Advanced Bionics and Connect Hearing – and offers its customers one of the most comprehensive product portfolios in the industry – from hearing aids to cochlear implants to wireless communication solutions.