Binaural hearing assistance system comprising binaural noise reduction
    71.
    发明授权
    Binaural hearing assistance system comprising binaural noise reduction 有权
    双耳助听系统包括双耳降噪

    公开(公告)号:US09516430B2

    公开(公告)日:2016-12-06

    申请号:US14677261

    申请日:2015-04-02

    Applicant: Oticon A/S

    Abstract: A binaural hearing assistance system includes left and right hearing assistance devices, and a user interface. The left and right hearing assistance devices comprises a) at least two input units for providing a time-frequency representation of an input signal in a number of frequency bands and a number of time instances; and b) a multi-input unit noise reduction system comprising a multi-channel beamformer filtering unit operationally coupled to said at least two input units and configured to provide a beamformed signal. The binaural hearing assistance system is configured to allow a user to indicate a direction to or location of a target signal source relative to the user via said user interface.

    Abstract translation: 双耳助听系统包括左右助听装置和用户界面。 左和右助听装置包括:a)至少两个输入单元,用于在多个频带和多个时间实例中提供输入信号的时间频率表示; 以及b)多输入单元噪声降低系统,其包括可操作地耦合到所述至少两个输入单元并被配置为提供波束形成信号的多通道波束成形器滤波单元。 双耳助听系统被配置为允许用户经由所述用户界面指示目标信号源相对于用户的方向或位置。

    HEARING DEVICE ADAPTED FOR ESTIMATING A CURRENT REAL EAR TO COUPLER DIFFERENCE
    72.
    发明申请
    HEARING DEVICE ADAPTED FOR ESTIMATING A CURRENT REAL EAR TO COUPLER DIFFERENCE 有权
    用于估计当前实际的耦合器差异的听觉设备

    公开(公告)号:US20160183012A1

    公开(公告)日:2016-06-23

    申请号:US14979177

    申请日:2015-12-22

    Applicant: Oticon A/S

    Abstract: The application relates to a hearing device comprising an ITE-part adapted for being located at or in an ear canal of a user, a configurable signal processing unit for processing an input signal, and a feedback estimation unit for providing a current estimate of an acoustic feedback path from an output transducer to an input transducer, a memory for storing frequency dependent reference estimates of the acoustic feedback path the real ear to coupler difference, when the ITE-part is correctly mounted, an optional probe signal generator for generating a probe signal at least in a specific measurement mode, wherein the hearing device is configured to perform measurement of the current estimate of the acoustic feedback path. The hearing device further comprises a control unit operatively connected to said memory and to said signal processing unit, and configured to compare said current estimate of the acoustic feedback path with said reference estimate of the acoustic feedback path, and to provide a current feedback path difference measure, and to determine a current estimate of real ear to coupler difference from the current feedback path difference measure. This has the advantage facilitating the mounting of the ear ITE-part. The invention may e.g. be used in hearing aids for compensating a user's hearing impairment.

    Abstract translation: 本申请涉及一种听力装置,其包括适于位于使用者的耳道中或耳内的ITE部分,用于处理输入信号的可配置信号处理单元和用于提供声学的当前估计的反馈估计单元 从输出变换器到输入变换器的反馈路径,存储器,用于存储声反馈路径的真实耳朵与耦合器差异的频率相关参考估计值,当ITE部件被正确安装时,可选的探测信号发生器用于产生探测信号 至少在特定测量模式中,其中所述听力设备被配置为执行所述声反馈路径的当前估计的测量。 该听力设备还包括一个控制单元,可操作地连接到所述存储器和所述信号处理单元,并且被配置为将声反馈路径的所述当前估计与声反馈路径的所述参考估计进行比较,并且提供电流反馈路径差 测量,并确定当前估计的真实耳朵与耦合器的差异与当前的反馈路径差异度量。 这有利于耳朵ITE部件的安装。 本发明可以例如 用于助听器以补偿用户的听力损伤。

    Hearing device with minimum processing beamformer

    公开(公告)号:US12225351B2

    公开(公告)日:2025-02-11

    申请号:US17575968

    申请日:2022-01-14

    Applicant: Oticon A/S

    Abstract: A hearing device adapted for being worn at or in an ear of a user, comprises a) an input unit comprising at last two input transducers each for converting sound around said hearing device to an electric input signal representing said sound, thereby providing at least two electric input signals; b) a beamformer filter comprising a minimum processing beamformer defined by optimized beamformer weights, the beamformer filter being configured to provide a filtered signal in dependence of said at least two electric input signals and said optimized beamformer weights; c) a reference signal representing sound around said hearing device; d) a performance criterion for said minimum processing beamformer. The minimum processing beamformer is a beamformer that provides the filtered signal with as little modification as possible in terms of a selected distance measure compared to said reference signal, while still fulfilling said performance criterion. The optimized beamformer weights are adaptively determined in dependence of said at least two electric input signals, said reference signal, said distance measure, and said performance criterion. A method of operating a hearing device is further disclosed. The invention may e.g. be used in hearing aids or headsets.

    A HEARING AID CONFIGURED TO SELECT A REFERENCE MICROPHONE

    公开(公告)号:US20240422481A1

    公开(公告)日:2024-12-19

    申请号:US18819829

    申请日:2024-08-29

    Applicant: Oticon A/S

    Abstract: A hearing aid adapted for being worn by a user comprises at least two microphones, providing respective at least two electric input signals representing sound; a filter bank converting the at least two electric input signals into signals as a function of time and frequency; a directional system connected to said at least two microphones and being configured to provide a filtered signal in dependence of said at least two electric input signals and fixed or adaptively updated beamformer weights. At least one direction to a target sound source is defined as a target direction. For each frequency band, one of said at least two microphones is selected as a reference microphone, thereby providing a reference input signal for each frequency band. The reference microphone for a given frequency band may be selected in dependence of directional data related to directional characteristics of the at least two microphones.

    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.

    Hearing system comprising a personalized beamformer

    公开(公告)号:US11582562B2

    公开(公告)日:2023-02-14

    申请号:US17109329

    申请日:2020-12-02

    Applicant: Oticon A/S

    Abstract: A hearing system configured to be located at or in the head of a user, comprises a) at least two microphones providing at least two electric input signals, b) an own voice detector, c) access to a database (Ol, Hl) comprising c1) relative or absolute own voice transfer function(s), and corresponding c2) absolute or relative acoustic transfer functions for a multitude of test-persons, d) a processor connectable to the at least two microphones, to the own voice detector, and to the database. The processor is configured A) to estimate an own voice relative transfer function for sound from the user's mouth to at least one of the at least two microphones, and B) to estimate personalized relative or absolute head related acoustic transfer functions from at least one spatial location other than the user's mouth to at least one of the microphones of the hearing system in dependence of the estimated own voice relative transfer function(s) and the database (Ol, Hl). The hearing system further comprises e) a beamformer configured to receive the at least two electric input signals, or processed versions thereof, and to determine personalized beamformer weights based on the personalized relative or absolute head related acoustic transfer functions or impulse responses. A method of determining personalized beamformer coefficients (wk) is further disclosed.

    Hearing aid comprising binaural processing and a binaural hearing aid system

    公开(公告)号:US11576001B2

    公开(公告)日:2023-02-07

    申请号:US17361615

    申请日:2021-06-29

    Applicant: Oticon A/S

    Abstract: A hearing aid comprises an input unit providing an electric input signal representing sound, a wake word detector configured identifying a particular wake word based on said electric input signal, and providing a wake word control signal indicative of whether, or with what probability, the wake word is detected, or an own voice detector estimating whether, or with what probability, the electric input signal originates from the voice of the user and providing an own voice control signal indicative thereof, transceiver circuitry establishing a communication link to another hearing aid allowing the transmission and/or reception of the electric input signal to/from the other hearing aid, and a pre-processor controlling the transceiver circuitry in dependence of the wake word control signal or the own voice control signal. A binaural hearing aid system and a method of operating a hearing aid are further disclosed.

    Method of adaptive mixing of uncorrelated or correlated noisy signals, and a hearing device

    公开(公告)号:US11330375B2

    公开(公告)日:2022-05-10

    申请号:US17025933

    申请日:2020-09-18

    Applicant: Oticon A/S

    Abstract: A hearing device, e.g. a hearing aid, adapted for being located at or in an ear, or to be fully or partially implanted in the head, of a user, the hearing device comprises a) an input unit providing at least two input audio data streams, each comprising a mixture of a target signal component from a target sound source and a noise component from one or more noise sources; b) a mixing processor for receiving said at least two input audio data streams, and for mixing said at least two input audio data streams, or processed versions thereof, and for providing a processed input signal based thereon; c) an output unit providing output stimuli perceivable to the user as sound based on said processed input signal or a processed version thereof. The processor is configured to process said noise component of said at least two input audio data streams, or processed versions thereof in order to reduce or avoid artefacts in said processed input signal due to said mixing. A method of operating a hearing device is further disclosed. The invention may e.g. be used in hearing aids, e.g. hearing aids configured to communicate with another device, e.g. binaural hearing aid systems.

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