Hearing device and a hearing system comprising a multitude of adaptive two channel beamformers

    公开(公告)号:US11917370B2

    公开(公告)日:2024-02-27

    申请号:US18084209

    申请日:2022-12-19

    Applicant: Oticon A/S

    Abstract: A binaural hearing system comprises first and second hearing aids, each comprising antenna and transceiver circuitry allowing the exchange of audio signals between them and a BTE-part adapted for being located at or behind the external ear (pinna) of the user and comprising front and rear input transducers providing respective front and rear electric input signals. Each of the hearing aids comprises primary and secondary adaptive 2-channel beamformers each providing a spatially filtered signal based on first and second beamformer-input signals. The primary and secondary 2-channel beamformers are coupled in a cascaded structure. The inputs to the primary 2-channel beamformers are, locally generated, front and rear electric input signals. The inputs to the secondary 2-channel beamformer may be beamformed signals from the first and second hearing aids respectively. The spatially filtered signal of the secondary 2-channel beamformer may comprise an estimate of a target signal in the environment of the user.

    Hearing device and a hearing system comprising a multitude of adaptive two channel beamformers

    公开(公告)号:US10887703B2

    公开(公告)日:2021-01-05

    申请号:US16584668

    申请日:2019-09-26

    Applicant: Oticon A/S

    Abstract: A hearing system comprises a first hearing device, e.g. a hearing aid. The hearing system comprises at least three input transducers, one of which being selected as a reference input transducer providing a reference input signal, at least two adaptive 2-channel beamformers, each providing a spatially filtered signal based on first and second beamformer-input signals, wherein the adaptive 2-channel beamformers maintain unit amplitude and phase for a target component of said reference input signal. The at least two 2-channel beamformers are coupled in a layered structure at least comprising a primary layer and a secondary layer. The adaptive parameter of a given 2-channel beamformer is determined from the first and second beamformer-input signals for the 2-channel beamformer in question.

    Hearing device and a hearing system comprising a multitude of adaptive two channel beamformers

    公开(公告)号:US12225350B2

    公开(公告)日:2025-02-11

    申请号:US18405455

    申请日:2024-01-05

    Applicant: Oticon A/S

    Abstract: A binaural hearing system comprises first and second hearing aids, each comprising antenna and transceiver circuitry allowing the exchange of audio signals between them and a BTE-part adapted for being located at or behind the external ear (pinna) of the user and comprising front and rear input transducers providing respective front and rear electric input signals. Each of the hearing aids comprises primary and secondary adaptive 2-channel beamformers each providing a spatially filtered signal based on first and second beamformer-input signals. The primary and secondary 2-channel beamformers are coupled in a cascaded structure. The inputs to the primary 2-channel beamformers are, locally generated, front and rear electric input signals. The inputs to the secondary 2-channel beamformer may be beamformed signals from the first and second hearing aids respectively. The spatially filtered signal of the secondary 2-channel beamformer may comprise an estimate of a target signal in the environment of the user.

    Hearing device comprising an own voice processor

    公开(公告)号:US12058493B2

    公开(公告)日:2024-08-06

    申请号:US17742132

    申请日:2022-05-11

    Applicant: Oticon A/S

    CPC classification number: H04R25/43 H04R25/30 H04R2225/41

    Abstract: A hearing device, e.g. a hearing aid or a headset, configured to be worn at or in an ear of a user, the hearing device comprising at least one input transducer for converting a sound in an environment of the hearing device to at least one electric input signal representing said sound; an own voice detector configured to estimate whether or not, or with what probability, said sound originates from the voice of the user, and to provide an own voice control signal indicative thereof, a face mask detector configured to estimate whether or not, or with what probability, said user wears a face mask while speaking, and to provide face mask control signal indicative thereof. A method of operating a hearing device is further disclosed. Thereby an improved hearing aid or headset may be provided.

    Hearing device and a hearing system comprising a multitude of adaptive two channel beamformers

    公开(公告)号:US11564043B2

    公开(公告)日:2023-01-24

    申请号:US17565034

    申请日:2021-12-29

    Applicant: Oticon A/S

    Abstract: A binaural hearing system comprises a first and second hearing aids. The hearing aids each comprises antenna and transceiver circuitry allowing the exchange of audio signals between them. At least one of the hearing aids comprises primary and secondary adaptive 2-channel beamformers each providing a spatially filtered signal based on first and second beamformer-input signals. The primary and secondary 2-channel beamformers are coupled in a cascaded structure. In an embodiment, the spatially filtered signal of the secondary 2-channel beamformer may comprise an estimate of user's own voice. In an embodiment, the spatially filtered signal of the secondary 2-channel beamformer may comprise an estimate of a target signal in the environment. In an embodiment, the inputs to the secondary 2-channel beamformer may be beamformed signals from the first and second hearing aids respectively.

    Hearing device comprising an own voice processor

    公开(公告)号:US11356783B2

    公开(公告)日:2022-06-07

    申请号:US17062097

    申请日:2020-10-02

    Applicant: Oticon A/S

    Abstract: A hearing device, e.g. a hearing aid or a headset, configured to be worn at or in an ear of a user, the hearing device comprising at least one input transducer for converting a sound in an environment of the hearing device to at least one electric input signal representing said sound; an own voice detector configured to estimate whether or not, or with what probability, said sound originates from the voice of the user, and to provide an own voice control signal indicative thereof, a face mask detector configured to estimate whether or not, or with what probability, said user wears a face mask while speaking, and to provide face mask control signal indicative thereof. A method of operating a hearing device is further disclosed. Thereby an improved hearing aid or headset may be provided.

    Hearing aid system comprising a database of acoustic transfer functions

    公开(公告)号:US11991499B2

    公开(公告)日:2024-05-21

    申请号:US17522275

    申请日:2021-11-09

    Applicant: Oticon A/S

    Abstract: A hearing aid microphone system includes M microphones providing corresponding electric input signals. Environmental sound at a given microphone includes a target sound signal propagated via an acoustic propagation channel from a direction to or a location of a target sound source to the microphone, and possible additive noise signals. The acoustic propagation channel is modeled. The hearing aid system includes: a processor connected to the microphones, and a database Θ having a multitude of dictionaries Δp, p=1, . . . , P, where p is a person index, of vectors, termed ATF-vectors, whose elements ATFm, m=1, . . . , M, are frequency dependent acoustic transfer functions representing direction- or location-dependent, and frequency dependent propagation of sound. The processor is configured to, at least in a learning mode of operation, determine personalized ATF-vectors based on the multitude of dictionaries Δp, the electric input signals, and the model of the acoustic propagation channels.

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