Method of focusing a hearing instrument beamformer

A technology for hearing aids and formers, used in hearing aids, devices for obtaining desired directional characteristics, frequency/directional characteristics devices, etc., can solve problems such as impossible and difficult to locate sources of interest, etc.
CN103475974AActive Publication Date: 2013-12-25SIVANTOS PTE LTD
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
SIVANTOS PTE LTD
Publication Date
2013-12-25

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Abstract

The invention relates to a method of focusing a hearing instrument beamformer, aiming to comfortably and visually realize the automatic adaption of the beam width and / or beam direction. A spatial orientation and / or position of the head of the hearing instrument user are / is first captured. When no head movements are captured, the acoustic signals are picked up with directional dependency. Then the amplification of acoustic signals is boosted that originate from a focus solid angle in front of the head of the hearing instrument user, compared with acoustic signals from other solid angles. This activates or increases directivity. Then the focus solid angle is decreased to gradually focus and to increase directivity, until the level of acoustic signals from the focus solid angle, actually the presence of the desired signals in the focus solid angle (purely theoretically the probability that the desired signal is present in the focus solid angle), reduces on account of reducing the focus solid angle.
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Description

technical field

[0001] The invention relates to a method for focusing a beamformer of a hearing aid. Background technique

[0002] The hearing aid can be designed, for example, as a hearing device that is worn on the outer ear or in the ear canal. Hearing aids are used to provide hearing-impaired persons with acoustic ambient signals which are processed and amplified in order to compensate or treat the corresponding hearing impairment. A hearing device consists in principle of one or more input transducers, signal processing means, amplification means and output transducers. The input transducer is usually an acoustic receiver (such as a microphone) and / or an electromagnetic receiver (such as an induction coil). Output transducers are mostly implemented as electroacoustic transducers (eg microspeakers) or electromechanical transducers (eg bone conduction headphones) or as stimulation electrodes for cochlea stimulation. It is also known as an earpiece or receiver. The out...

Claims

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