Hearing aid with several electroacoustic transducer systems

摘要

The hearing aid has the miniature loudspeaker normally employed replaced by a number of electroacoustic transducers embedded in the moulded plastics of the hearing aid module which fits within or behind the ear. The electroacoustic transducers may be provided using a multi-layer foil structure and are operated adjacent their resonance range, with a fuzzy logic used for matching to the rest of the hearing range.