Adaptive separation frequency in hearing aids

A technology for hearing aids and appliances, applied in hearing aids, prevention of sound wave response, signal processing, etc., can solve problems such as disturbing artifacts, and achieve the effect of protecting resources

Active Publication Date: 2016-03-09
SIVANTOS PTE LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the superimposition of frequency- and/or phase-invariant signal components with

Method used

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  • Adaptive separation frequency in hearing aids
  • Adaptive separation frequency in hearing aids
  • Adaptive separation frequency in hearing aids

Examples

Experimental program
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Embodiment Construction

[0047] figure 1 The principle structure of a hearing aid 100 according to the invention is shown. One or more microphones, also referred to as acoustic-electric converters 2 , are integrated in the hearing aid housing 1 for wearing behind the ear in order to receive sounds or acoustic signals from the environment. However, the invention is not limited to behind-the-ear hearing aids, but can also be used for in-the-ear hearing aids or ear canal hearing aids. The microphone 2 is an acoustic-electric converter 2 for converting sound into a first electrical audio signal. A signal processing device 3 , which is likewise arranged in the hearing aid housing 1 , processes the first audio signal. The output signal of the signal processing device 3 is transmitted to a loudspeaker or earpiece 4 which outputs an acoustic signal. Sound may be transmitted to the hearing aid wearer's eardrum through a sound tube that is held in the ear canal by an otoplastic. However, another electromech...

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PUM

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Abstract

The invention relates to a method for suppressing acoustic feedback in a hearing aid device, a corresponding device and a system. in the method, a frequency range to be transmitted by the hearing aid device is divided into two frequency ranges that are separated by a split-band frequency. A transfer function of a feedback path is estimated in a frequency range and assessed for its behavior at the split-band frequency. Depending on the result of the assessment, the split-band frequency is lowered or raised and in the upper frequency range a phase and/or frequency change is applied for suppressing feedback.

Description

technical field [0001] The invention relates to a method for suppressing acoustic feedback in a hearing aid, wherein the frequency division is adapted between a first frequency range with acoustic feedback suppression and a second frequency range without acoustic feedback suppression, and for implementing the A device and a system according to the method. Background technique [0002] Hearing aids are wearable hearing aids for the hearing impaired. In order to meet the numerous individual requirements, hearing aids are available in different designs, such as hearing aids behind the ear (HdO), hearing aids with external receiver (RIC: receiver in channel) and hearing aids in the ear (IdO), e.g. Including external ear hearing aids or ear canal hearing aids (ITE, CIC). The hearing aids listed above are worn on the outer ear or in the ear canal. But in addition, there are bone conduction hearing aids, implantable or tactile hearing aids on the market. Among them, the impaire...

Claims

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Application Information

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IPC IPC(8): H04R25/00
CPCH04R25/353H04R25/453H04R2430/03H04R25/45H04R25/554
Inventor T·D·罗森克兰茨S·佩特劳施T·沃兹巴彻
Owner SIVANTOS PTE LTD
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