HEARING AID COMPRISING A BEAM FORMER FILTERING UNIT COMPRISING A SMOOTHING UNIT

    公开(公告)号:US20170347206A1

    公开(公告)日:2017-11-30

    申请号:US15608294

    申请日:2017-05-30

    Applicant: Oticon A/S

    Abstract: A hearing aid comprises a resulting beam former (Y) for providing a resulting beamformed signal YBF based on first and second electric input signals IN1 and IN2, first and second sets of complex frequency dependent weighting parameters W11(k), W12(k) and W21(k), W22(k), and a resulting complex, frequency dependent adaptation parameter β(k)•β(k) may be determined as / +c), where * denotes the complex conjugation and • denotes the statistical expectation operator, and c is a constant, and wherein said adaptive beam former filtering unit (BFU) comprises a smoothing unit for implementing said statistical expectation operator by smoothing the complex expression C2*•C1 and the real expression |C2>2 over time. Alternatively, β(k) may be determined from the following expression β = w C   1 H  C v  w C   2 w C   2 H  C v  w C   2 , where wC1 and wC2 are the beamformer weights representing the first (C1) and the second (C2) beamformers, respectively, Cv is a noise covariance matrix, and H denotes Hermitian transposition. Corresponding methods of operating a hearing aid, and a hearing aid utilizing smoothing β(k) based on adaptive covariance smoothing are disclosed.

    METHOD FOR SELECTING TRANSMISSION DIRECTION IN A BINAURAL HEARING AID
    12.
    发明申请
    METHOD FOR SELECTING TRANSMISSION DIRECTION IN A BINAURAL HEARING AID 有权
    用于选择双向听力助听器中的传输方向的方法

    公开(公告)号:US20170013371A1

    公开(公告)日:2017-01-12

    申请号:US15204753

    申请日:2016-07-07

    Applicant: Oticon A/S

    Abstract: The disclosure relates to binaural hearing instruments and more particularly to reduction of processing time required in a binaural hearing aid system. According to the disclosure, there is provided a method comprising mono-directional transmission of data blocks comprising audio and/or information frames from one hearing instrument to the other hearing instrument or vice versa in a binaural hearing aid. According to the disclosure, the direction of transmission is determined by a quantity characterizing the presence of usable information content in the sound signal picked up by the hearing instruments of the binaural hearing aid. It is proposed to use one or more of local SNR, local voice activity detection indication, local level, local speech intelligibility estimate to determine the direction of transmission, although other quantities may be used.

    Abstract translation: 本公开涉及双耳助听器,更具体地涉及减少双耳助听器系统所需的处理时间。 根据本公开,提供了一种方法,包括在双耳助听器中将包括来自一个听力仪器的音频和/或信息帧的数据块单向传输到另一个听力仪器,反之亦然。 根据本公开,传输方向由表征由双耳助听器的听力器械拾取的声音信号中的可用信息内容的存在的量确定。 建议使用本地SNR,本地语音活动检测指示,本地级别,本地语音清晰度估计中的一个或多个来确定传输方向,尽管可以使用其他数量。

    PEER TO PEER HEARING SYSTEM
    13.
    发明申请
    PEER TO PEER HEARING SYSTEM 有权
    对等听觉系统

    公开(公告)号:US20160360326A1

    公开(公告)日:2016-12-08

    申请号:US15170261

    申请日:2016-06-01

    Applicant: Oticon A/S

    Abstract: The application relates to: A hearing system comprising first and second hearing aid systems, each being configured to be worn by first and second persons and adapted to exchange audio data between them. The application further relates to a method of operating a hearing system. The object of the present application is to provide improved perception of a (target) sound source for a wearer of a hearing device (e.g. a hearing aid or a headset) in a difficult listening situation. The problem is solved in that each of the first and second hearing aid systems comprising an input unit for providing a multitude of electric input signals representing sound in the environment of the hearing aid system; a beamformer unit for spatially filtering the electric input signals; antenna and transceiver circuitry allowing a wireless communication link between the first and second hearing aid systems to be established to allow the exchange of said audio data between them; and a control unit for controlling the beamformer unit and the antenna and transceiver circuitry; wherein the control unit—at least in a dedicated partner mode of operation of the hearing aid system—is arranged to configure the beamformer unit to retrieve an own voice signal of the person wearing the hearing aid system from the electric input signals, and to transmit the own voice signal to the other hearing aid system via the antenna and transceiver circuitry. This has the advantage of eliminating the need for a partner microphone while still providing a boost in SNR of a target speaker. The invention may e.g. be used for the hearing aids, head sets, active ear protection devices or combinations thereof.

    Abstract translation: 这具有消除对伙伴麦克风的需要的优点,同时仍然提供目标扬声器的SNR的提升。 本发明可以例如 用于助听器,头戴式耳塞,主动耳朵保护装置或其组合。

    PARTNER MICROPHONE UNIT AND A HEARING SYSTEM COMPRISING A PARTNER MICROPHONE UNIT
    14.
    发明申请
    PARTNER MICROPHONE UNIT AND A HEARING SYSTEM COMPRISING A PARTNER MICROPHONE UNIT 有权
    合作伙伴麦克风单元和包括合作伙伴麦克风单元的听觉系统

    公开(公告)号:US20160241975A1

    公开(公告)日:2016-08-18

    申请号:US15042944

    申请日:2016-02-12

    Applicant: OTICON A/S

    Abstract: The application relates to a partner microphone unit comprising a) a multitude microphones for picking up a sound from the environment providing corresponding electric input signals, each comprising a target signal component and a noise signal component; b) a multi-input unit noise reduction system for providing an estimate Ŝ of the target sound s comprising the person's voice and comprising a multi-input beamformer filtering unit coupled to said input units and configured to determine filter weights for providing a beamformed signal, wherein signal components from other directions than a direction of the target signal source are attenuated, whereas signal components from the direction of the target signal source are left un-attenuated; c) antenna and transceiver circuitry for establishing an audio link to another device; and wherein the multi-input beamformer filtering unit comprises an adaptive beamformer. An improved quality of a target signal from a speaker or communication partner is provided. The invention may e.g. be used in hearing aids, headsets, ear phones, active ear protection systems or combinations thereof.

    Abstract translation: 该应用涉及一种伙伴麦克风单元,包括:a)多个麦克风,用于拾取来自环境的声音,提供对应的电输入信号,每个包括目标信号分量和噪声信号分量; b)多输入单元噪声降低系统,用于提供包括人的语音的目标声音的估计,并且包括耦合到所述输入单元的多输入波束形成器滤波单元,并且被配置为确定用于提供波束形成信号的滤波器权重, 其中来自不同于目标信号源的方向的其它方向的信号分量被衰减,而来自目标信号源的方向的信号分量未被衰减; c)用于建立到另一设备的音频链路的天线和收发器电路; 并且其中所述多输入波束形成器滤波单元包括自适应波束形成器。 提供了来自扬声器或通信伙伴的目标信号的改进的质量。 本发明可以例如 用于助听器,耳机,耳机,主动耳朵保护系统或其组合。

    BINAURAL HEARING ASSISTANCE SYSTEM COMPRISING BINAURAL NOISE REDUCTION
    16.
    发明申请
    BINAURAL HEARING ASSISTANCE SYSTEM COMPRISING BINAURAL NOISE REDUCTION 有权
    包括减少噪声的双边听觉辅助系统

    公开(公告)号:US20150289065A1

    公开(公告)日:2015-10-08

    申请号:US14677261

    申请日:2015-04-02

    Applicant: Oticon A/S

    Abstract: The application relates to a binaural hearing assistance system comprising left and right hearing assistance devices, and a user interface, to its use and to a method. 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. This has the advantage that interaural cues of the target signals can be maintained, while the ambient noise is reduced.

    Abstract translation: 本申请涉及一种双耳助听系统,其包括左和右助听装置,以及用户界面,其使用和方法。 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形成器滤波单元。 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。 这具有能够维持目标信号的昼夜线索,同时降低环境噪声的优点。

    HEARING DEVICE WITH ADAPTIVE FEEDBACK-PATH ESTIMATION
    17.
    发明申请
    HEARING DEVICE WITH ADAPTIVE FEEDBACK-PATH ESTIMATION 有权
    具有自适应反馈路径估计的听觉设备

    公开(公告)号:US20150139460A1

    公开(公告)日:2015-05-21

    申请号:US14542067

    申请日:2014-11-14

    Applicant: OTICON A/S

    Abstract: A hearing device comprises a feedback-path estimation unit, which adaptively estimates a feedback path from an output transducer to an input transducer, and sets an adaptation-step size of an adaptive feedback-path estimation algorithm in dependence on an estimate of a background-noise spectrum. The feedback-path estimation unit provides an estimation-control signal for generating an acoustic feedback-path estimation signal having an level spectrum, which has at least one first frequency band with non-zero level and at least one second frequency band with zero level or with a non-zero level smaller than the level in the first frequency band and smaller than a background-noise level in the respective second frequency band. Background noise is detected in the second frequency band while the feedback-path estimation signal is provided. The background-noise level in the at least one first frequency band is estimated for obtaining the estimate of the background-noise spectrum. A corresponding method is described. The method is e.g. useful for estimating a feedback path during fitting of a hearing device, e.g. a hearing aid, to a particular user's needs.

    Abstract translation: 听力装置包括反馈路径估计单元,其自适应地估计从输出换能器到输入换能器的反馈路径,并且根据背景音调估计的估计设置自适应反馈路径估计算法的自适应步长, 噪声谱。 反馈路径估计单元提供用于生成具有电平频谱的声反馈路径估计信号的估计控制信号,该电平频谱具有至少一个具有零电平的第一频带和至少一个具有零电平的第二频带, 具有小于第一频带中的电平的非零电平并且小于相应的第二频带中的背景噪声电平。 在提供反馈路径估计信号的同时,在第二频带中检测到背景噪声。 估计至少一个第一频带中的背景噪声电平以获得背景噪声谱的估计。 描述相应的方法。 该方法是例如 用于在安装听觉装置期间估计反馈路径,例如, 助听器,用于特定用户的需要。

    BINAURAL HEARING ASSISTANCE SYSTEM COMPRISING TWO WIRELESS INTERFACES
    18.
    发明申请
    BINAURAL HEARING ASSISTANCE SYSTEM COMPRISING TWO WIRELESS INTERFACES 有权
    包含两个无线接口的双边听觉辅助系统

    公开(公告)号:US20150124976A1

    公开(公告)日:2015-05-07

    申请号:US14534282

    申请日:2014-11-06

    Applicant: Oticon A/S

    Abstract: The application relates to a binaural hearing assistance system comprising first and second hearing assistance devices adapted for being located at or in left and right ears of a user. The application further relates to a method of operating a binaural hearing assistance system. The object of the present application is to provide an improved binaural hearing assistance system. The problem is solved in that each of the first and second hearing assistance devices comprises a) a first wireless interface comprising first antenna and transceiver circuitry adapted for establishing a first communication link to the respective other hearing assistance device based on near-field communication; b) a second wireless interface comprising second antenna and transceiver circuitry adapted for establishing a second communication link to an auxiliary device based on far-field communication; c) a link control unit operatively coupled to the second antenna and transceiver circuitry and configured to repeatedly provide a second link quality measure indicative of a link quality of the second communication link; wherein the first and second hearing assistance devices are configured to exchange said respective second link quality measures between them via said first and/or second communication links. This has the advantage of providing a robust and flexible system. The invention may e.g. be used for binaural hearing assistance systems, e.g. binaural hearing aid systems, where audio quality and power consumption has to be mutually optimized.

    Abstract translation: 本申请涉及一种双耳助听系统,其包括适于位于使用者的左耳和右耳中的第一和第二听力辅助装置。 本申请还涉及一种操作双耳助听器系统的方法。 本申请的目的是提供一种改进的双耳助听系统。 解决的问题是,第一和第二听力辅助装置中的每一个包括:a)第一无线接口,包括第一天线和收发器电路,适于基于近场通信建立到相应的其他助听装置的第一通信链路; b)第二无线接口,包括第二天线和收发器电路,其适于基于远场通信建立到辅助设备的第二通信链路; c)链路控制单元,其可操作地耦合到所述第二天线和收发器电路并且被配置为重复地提供指示所述第二通信链路的链路质量的第二链路质量度量; 其中所述第一和第二听力辅助装置被配置为经由所述第一和/或第二通信链路在它们之间交换所述相应的第二链路质量度量。 这具有提供强大而灵活的系统的优点。 本发明可以例如 用于双耳助听器系统,例如 双耳式助听器系统,其中音频质量和功耗必须相互优化。

    CONTROL OF AN ADAPTIVE FEEDBACK CANCELLATION SYSTEM BASED ON PROBE SIGNAL INJECTION
    19.
    发明申请
    CONTROL OF AN ADAPTIVE FEEDBACK CANCELLATION SYSTEM BASED ON PROBE SIGNAL INJECTION 有权
    基于探测信号注入的自适应反馈消除系统的控制

    公开(公告)号:US20130070936A1

    公开(公告)日:2013-03-21

    申请号:US13622880

    申请日:2012-09-19

    Applicant: OTICON A/S

    CPC classification number: H04R3/02 H04R3/005 H04R25/407 H04R25/453 H04R27/00

    Abstract: Method and audio processing system determine a system parameter sp in a gain loop of an audio processing system. An alternative scheme is provided for feedback estimation in a multi-microphone audio processing system comprising an injected probe signal. The problem is solved in that a) an expression of an approximation of the expected square of the stationary loop gain, LGstat(ω,n), and b) an expression of the convergence or decay rate of the expected square of the stationary loop gain, LGstat(ω,n), after an abrupt change in one or more system parameters are determined, and in that c) a system parameter sp is determined from one of said expressions under the assumption that other system parameters are fixed. The method has the advantage of providing a relatively simple way of identifying and controlling dynamic changes in the acoustic feedback path(s).

    Abstract translation: 方法和音频处理系统确定音频处理系统的增益循环中的系统参数sp。 提供了一种替代方案,用于包括注入的探针信号的多麦克风音频处理系统中的反馈估计。 解决的问题是a)静态环路增益的预期平方的近似表达式,LGstat(ω,n),以及b)平稳环路增益的预期平方的收敛或衰减速率的表达式 在确定一个或多个系统参数的突然变化之后,确定LGstat(ω,n),并且其中c)在假设其他系统参数是固定的情况下,从所述表达式之一确定系统参数sp。 该方法具有提供识别和控制声反馈路径中的动态变化的相对简单的方法的优点。

    HEARING LOSS EMULATION VIA NEURAL NETWORKS

    公开(公告)号:US20250071490A1

    公开(公告)日:2025-02-27

    申请号:US18811056

    申请日:2024-08-21

    Applicant: Oticon A/S

    Abstract: A method of defining and setting a signal processing of a hearing aid is disclosed. The hearing aid is configured to be worn by a user at or in an ear of the user. The method comprises providing at least one electric input signal representing at least one input sound signal from a sound environment of a hearing aid user, determining a normal-hearing representation of said at least one electric input signal based on a selected normal-hearing auditory model fj, determining optimised training parameters of a neural network, where the neural network represents a hearing-impaired representation of said at least one electric input signal based on a hearing-impaired auditory model, wherein determining the optimised training parameters comprises determining a frequency distribution, βj, and a level and frequency distribution, αj,1, of said at least one electric input signal based on an equalization of sound pressure levels of said at least one electric input signal. A hearing aid adapted to be worn in or at an ear of a user is furthermore disclosed.

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