Hearing aid and a method of processing a sound signal in a hearing aid
AssigneeWidex A/S
InventorsAnders Jessen, Preben Kidmose
Life of this patent
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Abstract
The present invention relates to a hearing aid (1) comprising a housing (2), at least a first microphone for receiving ambient sound, processing means for processing a signal from the first microphone (6, 7) and an output transducer. At least one further microphone (8) is disposed in said hearing housing at a location, which, during normal use of the hearing aid, is sheltered against wind influences.
Claims20
A hearing aid comprising a housing, a first microphone for receiving ambient sound, a second microphone for receiving ambient sound, processing means for processing a signal from at least one of the first and the second microphone, and an output transducer, wherein said housing has a faceplate and a shell portion, the shell portion being adapted for partial insertion in the ear canal of a user, and wherein said second microphone has a sound port located at a surface of said shell portion at a location that is, during normal use of the hearing aid, sheltered against wind influences.
A hearing aid comprising a housing, a first microphone for receiving ambient sound, a second microphone for receiving ambient sound, processing means for processing a signal from at least one of the first and the second microphone, and an output transducer, wherein said housing has a concave surface adapted for wearing behind the ear of a user, and wherein said second microphone is disposed on said concave surface.
A method of acquiring and processing a sound signal in a hearing aid, comprising acquiring a first sound signal through a first microphone opening placed in the hearing aid at a first position, which is selected for good acoustic rendering on conditions not exposed to wind, acquiring a second sound signal through a second microphone opening placed in the hearing aid at a second position, which is selected to be, during normal use, at least partially sheltered against direct wind exposure, detecting the conditions of wind exposure by analysis of at least one of the first and the second sound signals, selecting for processing on conditions not exposed to wind mainly the first sound signal, and selecting for processing on conditions exposed to wind mainly the second sound signal.
A method of acquiring and processing a sound signal in a hearing aid, comprising acquiring a first sound signal through a first microphone opening placed in the hearing aid at a first position, which is selected for good acoustic rendering on conditions not exposed to wind, acquiring a second sound signal through a second microphone opening placed in the hearing aid at a second position, which is selected to be, during normal use, recessed to a position essentially in the transition between the concha and the ear canal, in order to be at least partially sheltered against direct wind exposure, detecting the conditions of wind exposure by analysis of level of noise of at least one of the first and the second sound signals, selecting for processing on conditions not exposed to wind mainly the first sound signal, and selecting for processing on conditions exposed to wind mainly the second sound signal.
Dependencies are inferred from the claim text.