Binaural compressor preserving directional cues

A compressor, binaural technology, used in hearing aids, electrical components, etc., can solve problems such as reducing sound sensitivity

Active Publication Date: 2013-03-20
GN HEARING AS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Another aspect of binaural hearing is described in US 7,630,507 which discloses that loud sounds received at one ear of a person with normal hearing have an effect on sounds received at the person's other ear. Masking effect, i.e. reduced sensitivity to sound at the other ear

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  • Binaural compressor preserving directional cues
  • Binaural compressor preserving directional cues
  • Binaural compressor preserving directional cues

Examples

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Embodiment Construction

[0124] The novel binaural hearing aid system will now be described more fully hereinafter with reference to the accompanying drawings, in which various examples are shown. The drawings are schematic and simplified for clarity and only show details necessary for understanding the invention, while other details have been omitted. The appended patent claims can be implemented in different forms not shown in the drawings and should not be construed as limited to the examples given here. Rather, these examples are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the appended patent claims to those skilled in the art.

[0125] Like reference numerals refer to like elements throughout.

[0126] figure 1 is a simplified block diagram of one of the digital hearing aids 10 of the novel binaural hearing aid system. The hearing aid 10 comprises: an input transducer 12, preferably a microphone; an analog-to-digital (A / D) converter 14 for...

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Abstract

A binaural hearing aid system is provided comprising a first hearing aid and a second hearing aid, each of which comprises a microphone and an A/D converter for provision of a digital input signal in response to sound signals received at the respective microphone, a processor that is configured to process the digital input signal in accordance with a selected signal processing algorithm into a processed digital output signal, including a compressor for compensation of dynamic range hearing loss based on the signal level, a D/A converter and an output transducer for conversion of the processed sound signal to an acoustic output signal, a transceiver for data communication with the other hearing aid, and wherein the gain of the compressor of the first hearing aid is controlled by a signal with a value that is substantially identical to the value of the signal controlling the gain of the compressor of the second hearing aid, whereby sense of direction is maintained.

Description

technical field [0001] A binaural hearing aid system is provided with binaural compression that preserves directional cues of received sound signals. Background technique [0002] Hearing-impaired people are usually affected by a frequency-dependent and sound-level-dependent loss of hearing sensitivity. Therefore, a hearing-impaired person can also hear certain frequencies (for example, low frequencies) as well as a person with normal hearing, but cannot hear at other frequencies (for example, high frequencies) with the same sensitivity as a person with normal hearing sound. At frequencies with reduced sensitivity, a hearing-impaired person can also hear loud sounds as well as a person with normal hearing, but cannot hear soft sounds with the same sensitivity as a person with normal hearing. Consequently, hearing impaired persons are affected by a loss of dynamic range. [0003] Typically, a compressor in a hearing aid is used to compress the dynamic range of the sound re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R25/00
CPCH04R25/552H04R25/356
Inventor 马桂林
Owner GN HEARING AS
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