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A hearing device comprising a microphone adapted to be located at or in the ear canal of a user

A hearing device and a technology in the ear canal, which is applied in the field of in-ear receiver type hearing devices, and can solve problems such as difficult ear mold ventilation and whistling

Active Publication Date: 2019-07-09
OTICON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But for users with severe hearing loss who require high gain, it is difficult to achieve adequate ventilation in the earmold (with acceptable risk of howling)

Method used

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  • A hearing device comprising a microphone adapted to be located at or in the ear canal of a user
  • A hearing device comprising a microphone adapted to be located at or in the ear canal of a user
  • A hearing device comprising a microphone adapted to be located at or in the ear canal of a user

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Embodiment Construction

[0133] The detailed description set forth below in connection with the accompanying drawings serves as a description of a number of different configurations. The detailed description includes specific details to provide a thorough understanding of various concepts. It will be apparent, however, to one skilled in the art that these concepts may be practiced without these specific details. Several aspects of the apparatus and methods are described in terms of a number of different blocks, functional units, modules, elements, circuits, steps, processes, algorithms, etc. (collectively referred to as "elements"). Depending on the particular application, design constraints, or other reasons, these elements may be implemented using electronic hardware, computer programs or any combination thereof.

[0134] Electronic hardware may include microprocessors, microcontrollers, digital signal processors (DSPs), field programmable gate arrays (FPGAs), programmable logic devices (PLDs), gat...

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PUM

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Abstract

A hearing device comprising a microphone adapted to be located at or in the ear canal of a user is disclosed. The hearing device comprises: an input unit comprising at least one first input transducerfor picking up said sound user and providing respective at least one first electric input signals, and a second input transducer for picking up said sound and providing a second electric input signal; an output unit comprising an output transducer for converting a processed electric signal representing said sound to a stimulus perceivable by said user as sound; a near-field beamformer applied tosaid multitude of electric input signals and implementing a feedback suppression system for suppressing feedback from said output unit to said at least one first input transducer, and comprising an adaptation unit for modifying the second electric input signal in approximation of an acoustic transfer function, or an impulse response, from the second input transducer to the at least one first inputtransducer and providing a modified second electric input signal representative of an estimate of said feedback.

Description

technical field [0001] The present application relates to hearing devices such as hearing aids. The present application relates in particular to receiver-in-the-ear (RITE) hearing devices comprising a microphone system comprising a plurality (more than two) of microphones, wherein at least a first microphone is adapted to be located at or in the ear canal of a user, and at least a second The second microphone is adapted to be located at a distance from the first microphone, eg at or behind the user's ear (pinna) (or elsewhere). Background technique [0002] A commonly known problem among hearing aid users is that if the gain is too high and / or if the ventilation opening in the earmould is too large, acoustic feedback from the ear canal causes the hearing aid to whistle. The more gain needed to compensate for hearing loss, the smaller the vent (or effective vent area) must be to avoid howling, and for severe hearing loss, even between the earmold (without any intentionally d...

Claims

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Application Information

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IPC IPC(8): H04R25/00
CPCH04R25/50H04R2225/43H04R25/405H04R2460/13H04R25/453H04R25/407H04R2225/0213H04R25/505H04R2225/025H04R2410/01
Inventor S·O·皮特森M·S·彼得森A·托勒
Owner OTICON