A hearing device, a fitting device and corresponding methods

A kind of hearing aid equipment, equipment technology, applied in the direction of hearing aid adaptation, hearing aid, prevention of sound wave response, etc., can solve problems such as change

Active Publication Date: 2012-01-11
GN HEARING AS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the fit of a hearing aid in the ear canal is included in the invariant part, bu

Method used

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  • A hearing device, a fitting device and corresponding methods
  • A hearing device, a fitting device and corresponding methods
  • A hearing device, a fitting device and corresponding methods

Examples

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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 fitting device for fitting a hearing device to compensate for the hearing loss of a user and to a corresponding method. Additionally, the invention relates to a hearing device of reducing feedback and to a corresponding hearing device. The hearing device comprises a receiver and a microphone; wherein a feedback path from the receiver to the microphone exists; wherein the hearing device further comprises an adaptive feedback canceller adapted to reduce at least a part of the feedback; and wherein the adaptive feedback canceller comprises a fixed filter for modeling an invariant portion of the feedback path, and an adaptive filter for modeling a variant portion of the feedback path; and wherein the invariant portion is provided to the fixed filter of the hearing device independently of an actual user using the hearing device and the acoustical environment where the hearing device is put into use. Thereby a hearing aid is achieved which contains a fixed filter which comprises the invariant portions 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 an...

Claims

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Application Information

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IPC IPC(8): H04R25/00
CPCH04R25/453H04R25/70H04R25/45
Inventor 马桂林
Owner GN HEARING AS
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