Hearing aid device, its fitting device and corresponding method

A technology of hearing aid equipment and equipment, applied in the adaptation of hearing aids for hearing loss, hearing aids, prevention of sound wave reactions, etc., capable of solving problems such as changes

Active Publication Date: 2016-01-06
GN HEARING AS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the fitting of a hearing aid in the ear canal is included in the invariant part, but it may undergo changes when the user yawns or when the hearing aid is reinserted in the ear

Method used

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  • Hearing aid device, its fitting device and corresponding method
  • Hearing aid device, its fitting device and corresponding method
  • Hearing aid device, its fitting device and corresponding method

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0050] Above and below, the hearing aid device may be selected from the group consisting of hearing aids, hearing aid prostheses, and the like. Examples of hearing aid devices may include behind-the-ear (BTE) hearing aids and in-the-ear (ITE) hearing aids as well as completely in-canal (CIC) hearing aids.

[0051] figure 1 An embodiment of a hearing aid device 100 comprising a microphone 101 and a receiver 102 is shown.

[0052] In an embodiment, a feedback path 107 comprising an impulse response b(n) exists between the receiver 102 and the microphone 101 . Feedback path 107 may be an acoustic and / or electrical and / or mechanical feedback path. In the above and below, n represents a discrete time index, and n starts from 0.

[0053] The hearing aid device 100 may also include a processor 106 or the like adapted to process the signal from the microphone 101 according to one or more algorithms. In an embodiment, the processor 106 may be adapted to compensate for hearing loss ...

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PUM

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Abstract

The invention discloses a hearing aid device and a method for fitting a hearing aid device to compensate a user's hearing loss to reduce feedback. The present invention relates to a hearing aid device comprising a receiver and a microphone; wherein there is a feedback path from the receiver to the microphone; wherein the hearing aid device further comprises an adaptive feedback canceller adapted to reduce at least a portion of the feedback; and wherein the adaptive feedback The canceller includes a fixed filter for modeling the constant part of the feedback path and an adaptive filter for modeling the changing part of the feedback path; The acoustic environment in which the hearing device is put into use will provide a constant part to the fixed filter of the hearing aid. Hereby is achieved a hearing aid comprising a fixed filter comprising a constant part of the feedback path.

Description

technical field [0001] The present description relates to a fitting device for fitting a hearing aid device to compensate for a user's hearing loss and to a corresponding method. Furthermore, the description relates to a method for reducing feedback in a hearing aid and to a corresponding hearing aid. Background technique [0002] A hearing device consisting of a receiver and microphone may experience feedback. Feedback is a very serious matter. Feedback refers to the process in which a portion of the receiver's output is picked up by a microphone, amplified by processing in the hearing aid, and sent out again by the receiver. When the amplification of the hearing device is greater than the feedback path attenuation, instability can occur and often results in feedback howling, which limits the maximum gain that can be achieved, and thus the feedback compromises the wearing comfort of the hearing device. [0003] "Reducing acoustic feedback in hearing aids" by J. Maxwell a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R25/00
CPCH04R25/453H04R25/70H04R25/45
Inventor 马桂林
Owner GN HEARING AS
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