A HEARING DEVICE COMPRISING AN ACTIVE EMISSION CANCELLER
A hearing device comprises a forward path comprising at least one input transducer configured to pick up environment sound from the environment around the user when the user is wearing the hearing device, the at least one input transducer providing at least one electric input signal representative o...
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Format: | Patent |
Sprache: | eng ; fre ; ger |
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Zusammenfassung: | A hearing device comprises a forward path comprising at least one input transducer configured to pick up environment sound from the environment around the user when the user is wearing the hearing device, the at least one input transducer providing at least one electric input signal representative of said environment sound, a signal processor for processing said at least one electric input signal, or a signal originating therefrom, and providing a processed signal, and a loudspeaker connected to a speaker sound outlet configured to provide an output sound to an eardrum of the user in dependence of said processed signal. The hearing device further comprises an ITE-part adapted for being located at least partially in an ear canal of the user, an active emission canceller configured to provide an electric sound cancelling signal, and an environment facing loudspeaker connected to the active emission canceller and configured to provide an output sound to the environment. The electric sound cancelling signal is determined in dependence of said processed signal or a signal originating therefrom and configured to cancel or attenuate sound leaked from the speaker sound outlet to the environment when played by the environment facing loudspeaker, and the environment facing loudspeaker is located on or has a sound outlet on an environment facing surface of the ITE-part. The invention may e.g. be used in hearing aids, headsets, earphones, etc. |
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