The First CROS Hearing Aids?

In 1965, Harford and Barry were credited for the first accessible published description of across-head fitting1.  It was called the CROS (Contralateral Routing of Offside Signals).  Harford and Barry did acknowledge, however, that Wullstein and Wigand had published results on an almost identical across-head arrangement three years earlier2.  The Wullstein and Wigand work has seldom…

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OTC Self-Fitting of Hearing Aids – Part II

Until recently, hearing aids supposedly weren’t able to be purchased over-the-counter (OTC). Instead, consumers had to have a professional evaluate their hearing loss, set the hearing aid’s performance, and teach proper use.  However, recent OTC sales of hearing aid legislation has opened the door to focus on OTC self-fitting of hearing aids.   Why is…

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