Hearing system including a personalized beamformer

By measuring and mapping the user's self-voice transfer function, a personalized head-related transfer function is calculated, which solves the problem that the beamformer coefficient in existing hearing aids is not suitable for the user's acoustic characteristics, and achieves better acoustic performance and user experience.

CN112911477BActive Publication Date: 2025-07-01OTICON
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Patent Information

Application Number
CN202011401955.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2019-12-03
Filing Date
2020-12-03
Publication Date
2025-07-01
Estimated Expiration
2040-12-03

AI Technical Summary

Technical Problem

The spatial noise reduction system in existing hearing aids cannot effectively personalize the user's head-dependent transfer function, resulting in the beamformer coefficients not suitable for the actual acoustic characteristics of each user.

Method used

By measuring the user's self-voice transfer function, mapped to the personalized head-dependent transfer function, the personalized beamformer coefficient is calculated suitable for the user. This method does not require advanced audio equipment and can be performed in a clinical setting of auditory care specialists or during daily use of hearing aids.

Benefits of technology

It realizes the calculation of a more suitable beamformer coefficient based on the user's personalized acoustic characteristics, improves the acoustic performance of the hearing aid, and enhances the user's spatial sound perception and speech intelligibility.

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Abstract

The present application discloses a hearing system including a personalized beamformer, the hearing system comprising: a memory, wherein a database (O l ,H l ) includes relative or absolute self-voice transfer functions or impulse responses and relative or absolute head-related acoustic transfer functions or impulse responses; a processor configured to estimate a relative self-voice transfer function of sound from a user's mouth to at least one of the at least two microphones based on at least two electrical input signals and a self-voice control signal, and to estimate a personalized relative or absolute head-related acoustic transfer function or impulse response from at least one spatial location different from the user's mouth to at least one microphone of a hearing system worn by the user based on the estimated relative self-voice transfer function and the database (O l ,H l ); a beamformer configured to receive at least two electrical input signals and determine personalized beamformer weights based on the personalized relative or absolute head-related acoustic transfer functions or impulse responses.
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Citation Information

Patent Citations

  • Self-calibration of multi-microphone noise reduction system for hearing assistance devices using an auxiliary device

    EP2928215A1

  • Hearing device comprising own voice detector

    CN108200523A

  • Systems and methods for non-parametric processing of head geometry for HRTF personalization

    US20180270603A1