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Hearing device with analog filtering and associated method

A hearing device and operating mode technology, applied in hearing equipment to reduce energy consumption, hearing aids, sensor components, etc., can solve problems such as unusable hearing devices, achieve the effects of improving SNR, effective use, and reducing saturation

Active Publication Date: 2018-11-27
GN HEARING AS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this is at the expense of normal sound processing being substantially impaired rendering hearing devices somewhat unusable

Method used

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  • Hearing device with analog filtering and associated method
  • Hearing device with analog filtering and associated method
  • Hearing device with analog filtering and associated method

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Embodiment Construction

[0018] The drawings are exemplary and simplified for clarity, and they only show details necessary for understanding the present invention, while other details have been omitted. Throughout, the same reference numerals are used for the same or corresponding parts.

[0019] The preprocessing unit processes the audio signal from the microphone and has input and output. The input includes a first input terminal connected to the output of the microphone, such as the output of the first output terminal. The pre-processing unit may include one or more control terminals for receiving control signal(s) from the processing unit and / or sending control signal(s) to the processing unit.

[0020] The preprocessing unit may include a first capacitor circuit having a first capacitance value. The first capacitance value may be variable, for example, the first capacitance value may depend on a control signal from the processing unit. The preprocessing unit may include a second capacitor or a sec...

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Abstract

The present invention relates to a hearing apparatus having analog filtering and associated methods. Disclosed a hearing apparatus, the hearing apparatus comprising: a microphone for converting audio into an audio signal; Preprocessing unit, which is used for analog processing of audio signals and has inputs and outputs, wherein the input is connected to the output of the microphone; A / D converter for converting a processed analog audio signal into a digital audio signal, an A / D converter has inputs and outputs, wherein the inputs are connected to the outputs of the preprocessing unit; And, the processing unit, which is used for digital processing of the output of the A / D converter, wherein the processing unit is connected to the preprocessing unit. The preprocessing unit is configured to apply a first transfer function to the audio signal in the first mode of operation according to the control signal from the processing unit, and a second transfer function having a second cutoff frequency to the audio signal in the second mode of operation.

Description

Technical field [0001] The present invention relates to hearing devices or hearing aids with analog filtering and associated methods. In particular, the present invention relates to hearing aids with improved wind noise reduction. Background technique [0002] Wind noise is experienced by the hearing device user as very unpleasant and considerably reduces the user-friendliness of the hearing device. Known methods for reducing wind noise in hearing devices include filtering in the digital domain. Furthermore, it is known to reduce the gain of the preamplifier to remove unpleasant sound levels. However, this comes at the expense of normal sound processing being substantially impaired making the hearing device unusable to a certain extent. Summary of the invention [0003] Despite the existence of known solutions, there is still a need to improve hearing device handling during windy conditions and improve the signal-to-noise ratio (SNR) in the hearing device. [0004] Therefore, a ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R3/00H04R25/00
CPCH04R25/502H04R2410/07H04R2460/03H04R25/00
Inventor 彼得·西格姆费尔特
Owner GN HEARING AS
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