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 hearing device unavailability, achieve improved SNR, effective use, and improved power management.

Active Publication Date: 2014-06-11
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

Examples

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Embodiment Construction

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

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

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PUM

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Abstract

The present invention relates a hearing device with analog filtering and an associated method. The hearing device includes: a microphone for converting audio into an audio signal; a preprocessing unit for analog processing of the audio signal and having an input and an output, wherein the input is connected to an output of the microphone; an A/D converter for converting the processed analog audio signal into a digital audio signal, the A/D converter having an input and an output, wherein the input of the A/D converter is connected to the output of the preprocessing unit; and a processing unit for digital processing of an output from the A/D converter, wherein the processing unit is connected to the preprocessing unit, and is configured to apply a first transfer function to the audio signal in a first mode of operation, or a second transfer function with a cutoff frequency to the audio signal in a second mode of operation, depending on a control signal.

Description

technical field [0001] The invention relates to a hearing device or hearing aid with analog filtering and an associated method. In particular, the present invention relates to hearing aids with improved wind noise reduction. Background technique [0002] Wind noise is experienced as very unpleasant by hearing device users 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. Also, it is known to reduce the gain of the preamplifier to remove objectionable sound levels. However, this is at the expense of normal sound processing being substantially impaired rendering the hearing device somewhat unusable. Contents of the invention [0003] Despite known solutions, there is still a need to improve hearing device handling during windy conditions and to improve the signal-to-noise ratio (SNR) in hearing devices. [0004] Therefore, there is provided a hearing devi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R3/00H04R25/00
CPCH04R2460/03H04R2410/07H04R25/502H04R25/00
Inventor 彼得·西格姆费尔特
Owner GN HEARING AS
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