Bad to the Bone Headsets

Staab (2012) indicates that knowledge of bone conduction hearing has been around since the time of  Girolamo Cardano (1501-1576), a physician, mathematician and philosopher as well as an early deaf educator in the early 1550s. In one of Cardano’s 230 books, entitled “De Subtilitate,” (1550), he described a method by which sound was transmitted to the ear by means of a…

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