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…

Read More

Trivia: History of Hearing Testing

At the 2013 Audiology Now meeting in Anaheim, a group of us (Robert Margolis, Charles Berlin, Jay Hall III, and myself, were invited to give a presentation on topics related to the History of Audiology (hearing testing, hearing aids, and vestibular testing).  That which follows takes on the format of questions, utilizing materials from the…

Read More