Method for directional signal processing for hearing aid

A hearing device and signal processing technology, applied in hearing aid signal processing, hearing aid, prevention of sound wave response, etc., can solve problems such as incomplete elimination of related sound signals

Active Publication Date: 2021-02-09
SIVANTOS PTE LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a signal processing method for hearing equipment, by means of the signal processing method, when using a directional microphone, Incomplete elimination of potentially relevant acoustic signals from non-frontal directions, especially from the rear half of the room

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  • Method for directional signal processing for hearing aid
  • Method for directional signal processing for hearing aid
  • Method for directional signal processing for hearing aid

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Embodiment Construction

[0074] exist figure 1 , a method for directional signal processing in a hearing instrument 1 according to the prior art is schematically shown in a block diagram. The hearing device 1 has a first input converter 2 and a second input converter 4 , which generate a first input signal E1 and a second input signal E2 from an acoustic signal 6 in the environment and which can be output by a microphone, respectively, for example. In this case, the first input converter 2 is arranged in front of the second input converter 4 with respect to the frontal direction 7 of the hearing device 1 , which is defined by the intended wearing during operation.

[0075] Now, the second input signal E2 is delayed by a first delay parameter T1 and the thus delayed second input signal is subtracted from the first input signal E1 to generate the forward signal Z1. In a similar manner, the first input signal E1 is delayed by a second delay parameter T2, and the second input signal E2 is subtracted from...

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Abstract

The invention relates to a directional signal processing method for a hearing device. The method comprises the steps of generating a first input signal by means of a first input converter according toa sound signal in the environment, generating a second input signal by means of a second input converter according to the sound signal, generating a forward signal and a backward signal according tothe first input signal and the second input signal, respectively, determining a first orientation parameter as a linear factor of a linear combination of the forward signal and the backward signal, such that a first directional signal formed by the linear combination has a maximum attenuation in the first direction; determining the correction parameter such that the second directional signal has adefined relative attenuation in the first direction, generating a second directional signal from the forward signal and the backward signal according to the first directional parameter and the correction parameter, or from the first directional signal and the omnidirectional signal according to the correction parameter, and generating an output signal of the hearing device according to the seconddirectional signal.

Description

technical field [0001] The invention relates to a method of directional signal processing for a hearing device, wherein a first input signal is generated from a sound signal in the environment by a first input converter of the hearing device, wherein a second input converter of the hearing device The device generates a second input signal according to the sound signal in the environment, wherein a first directional signal is generated according to the first input signal and according to the second input signal, the first directional signal has a maximum attenuation in the first direction, And wherein, based on the first directional signal, an output signal of the hearing device is generated. Background technique [0002] In a hearing device, ambient sound is converted into at least one input signal by means of at least one input converter, depending on the hearing impairment of the wearer to be corrected, in a frequency-band-specific manner and here in particular in individu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R1/32
CPCH04R1/32H04R25/407H04R2225/43H04R25/405H04R25/45
Inventor E.费希尔H.卡姆卡-帕西J.海恩
Owner SIVANTOS PTE LTD
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