DIRECTION OF ARRIVAL ESTIMATION IN MINIATURE DEVICES USING A SOUND SENSOR ARRAY

    公开(公告)号:US20190014422A1

    公开(公告)日:2019-01-10

    申请号:US15643074

    申请日:2017-07-06

    Applicant: Oticon A/S

    Abstract: A hearing device comprises a sound system for estimating the direction of arrival of sound emitted by one or more sound sources creating a sound field. The sound system comprises an array of N sound receiving transducers (microphones), each providing an electric input signal, a processing unit comprising a) a model unit comprising a parametric model configured to be able to describe the sound field at the array as a function of the direction of arrival in a region surrounding and adjacent to the array; b) a model optimizing unit configured to optimize said model with respect to its parameters based on said sound samples; c) a cost optimizing unit configured to minimize a cost function of the model with respect to said direction of arrivals; d) an estimating unit configured to estimate the direction of arrival based on said parametric model with the optimized parameters and the optimized cost function.

    METHODS AND APPARATUS FOR PROCESSING AUDIO SIGNALS
    23.
    发明申请
    METHODS AND APPARATUS FOR PROCESSING AUDIO SIGNALS 有权
    处理音频信号的方法和设备

    公开(公告)号:US20130304459A1

    公开(公告)日:2013-11-14

    申请号:US13890001

    申请日:2013-05-08

    Applicant: OTICON A/S

    Abstract: A method for processing an audio signal (i(t)), comprises: receiving a first set (x(t)) of time-varying signals representing a first sound comprised in the audio signal (i(t)), the first set (x(t)) of time-varying signals comprising an amplitude modulation signal (a(t)), a carrier frequency signal (fc(t)), a pitch signal (f0(t)) and an FM index signal (h(t)); and modifying the first set (x(t)) of time-varying signals by modifying the amplitude of the FM index signal (h(t)), thereby providing a first modified set (x′(t)) of time-varying signals. The resulting first modified set (x′(t)) of time-varying signals may subsequently be modulated to provide an audio output signal.

    Abstract translation: 一种用于处理音频信号(i(t))的方法,包括:接收表示音频信号(i(t))中包含的第一声音的时变信号的第一组(x(t)),第一组 包括幅度调制信号(a(t)),载波频率信号(fc(t)),音调信号(f0(t))和FM索引信号(h)的时变信号(x(t)) (t)); 以及通过修改FM索引信号(h(t))的幅度来修改时变信号的第一集合(x(t)),从而提供时变信号的第一修改集(x'(t)) 。 可以随后调制所得到的时变信号的第一修改集(x'(t))以提供音频输出信号。

    SYSTEM FOR CAPTURING ELECTROOCULOGRAPHY SIGNALS

    公开(公告)号:US20240260887A1

    公开(公告)日:2024-08-08

    申请号:US18640524

    申请日:2024-04-19

    Applicant: Oticon A/S

    Abstract: An electrooculography (EOG) signal capture system comprises a) a sensor array adapted for being located at one of a left or right ears of a user and/or for fully or partially being implanted in the head at left or right ears of a user, the sensor array comprising a number Ns of electric potential sensors, respectively, for sensing respective electric potentials from the user's head, where Ns is larger than or equal to two, b) electronic circuitry coupled to the sensor array and configured to provide at least two different beamformed signals (SBF1, SBF2), each being representative of a weighted combination of said electric potentials, or of signals derived therefrom, and wherein a difference between said at least two different beamformed signals (ΔPBF=SBF1−SBF2)—at least in a specific electrooculography mode of operation—represents an electrooculography signal (ΔPEOG) from one or both eyes of said user. A single-sensor EOG-system is further proposed. The invention may e.g. be used in hearing aids or other electronic wearables.

    HEARING AID COMPRISING A PHYSIOLOGICAL SENSOR

    公开(公告)号:US20230412990A1

    公开(公告)日:2023-12-21

    申请号:US18458585

    申请日:2023-08-30

    Applicant: Oticon A/S

    CPC classification number: H04R25/505 H04R25/554 H04R2225/41

    Abstract: The present application relates to a system comprising a hearing aid, the hearing aid configured to be operated based on an estimation of a current listening effort of a hearing aid user. The system comprising an input unit for receiving an input sound signal from an environment of the hearing aid user and providing at least one electric input signal representing said input sound signal, an output unit for providing at least one set of stimuli perceivable as sound to the hearing aid user based on processed versions of said at least one electric input signal, a signal-to-noise ratio (SNR) estimator for determining an SNR in the environment of the hearing aid user, a processing unit connected to said input unit and to said output unit and comprising signal processing parameters of the system to provide processed versions of said at least one electric input signal, a memory unit configured to store reference sets of SNR and pulse transition time (PTT) of the hearing aid user, at least a first and a second physiological sensor, wherein the system being configured to determine, based on the first physiological sensor, a first point in time at a first maximum upslope point of a first measured parameter, determine, based on the second physiological sensor, a second point in time at a second maximum upslope point of a second measured parameter, establish a current PTT by calculating a time difference between the first point in time and the second point in time, and determine, based on the current PTT and the stored reference sets of SNR and PTT, a current listening effort of the hearing aid user.

    HEARING AID SYSTEM
    27.
    发明申请
    HEARING AID SYSTEM 审中-公开

    公开(公告)号:US20190174238A1

    公开(公告)日:2019-06-06

    申请号:US16205934

    申请日:2018-11-30

    Applicant: Oticon A/S

    Abstract: The invention concerns a hearing aid system that comprises an ear canal member comprising a sensor arrangement. The sensor arrangement comprises at least one surface electrode located at a surface of said ear canal member to allow said at least one surface electrode to contact the skin of a user when said ear canal member is operationally mounted on the user. The at least one surface electrode (150) is adapted to pick up a low voltage electric signal from the user's skin. The sensor arrangement further comprises a light sensor (180) located at a surface of said housing to allow emitting light through skin proximate to the light sensor (180) and capturing reflected and/or scattered light when said ear canal member is operationally mounted on the user.The hearing aid system further comprises a sensor signal processing unit (170) that is connected to the surface electrode (150) and the light sensor (180) and that is configured to generate one or more sensor signals from each respective output signal of the at least one surface electrode (150) and the light sensor (180).The hearing aid system further comprises or is connected to an evaluation unit (300) that is configured to generate an electrocardiogram-representing signal (ECG) from low voltage electric signals picked-up by the at least one surface electrode (150) and a plethysmographic-curve-representing signal from an output signal of the light sensor (180).

    HEARING SYSTEM CONFIGURED TO LOCALIZE A TARGET SOUND SOURCE

    公开(公告)号:US20190132685A1

    公开(公告)日:2019-05-02

    申请号:US16171976

    申请日:2018-10-26

    Applicant: Oticon A/S

    Abstract: A hearing system is adapted to be worn by a user and configured to capture sound in an environment of the user and comprises a) a sensor array comprising M transducers for providing M electric input signals representing said sound and having a known geometrical configuration relative to each other; b) a detector unit for detecting movements over time of the hearing system, and providing location data of said sensor array at different points in time t, t=1, . . . , N; c) a first processor for receiving said electric input signals and—in case said sound comprises sound from a localized sound source S—for extracting sensor array configuration specific data τij of said sensor array indicative of differences between a time of arrival of sound from said localized sound source S at said respective input transducers, at said different points in time t, t=1, . . . , N; and d) a second processor configured to estimate data indicative of a location of said localized sound source S relative to the user based on corresponding values of said location data and said sensor array configuration data at said different points in time t, t=1, . . . , N.

    SYSTEM FOR CAPTURING ELECTROOCULOGRAPHY SIGNALS

    公开(公告)号:US20180368722A1

    公开(公告)日:2018-12-27

    申请号:US16014763

    申请日:2018-06-21

    Applicant: Oticon A/S

    Abstract: An electrooculography (EOG) signal capture system comprises a) a sensor array adapted for being located at one of a left or right ears of a user and/or for fully or partially being implanted in the head at left or right ears of a user, the sensor array comprising a number Ns of electric potential sensors, respectively, for sensing respective electric potentials from the user's head, where Ns is larger than or equal to two, b) electronic circuitry coupled to the sensor array and configured to provide at least two different beamformed signals (SBF1, SBF2), each being representative of a weighted combination of said electric potentials, or of signals derived therefrom, and wherein a difference between said at least two different beamformed signals (ΔPBF=SBF1−SBF2)—at least in a specific electrooculography mode of operation—represents an electrooculography signal (ΔPEOG) from one or both eyes of said user. A single-sensor EOG-system is further proposed. The invention may e.g. be used in hearing aids or other electronic wearables.

    METHOD, DEVICE AND SYSTEM FOR INCREASING A PERSON'S ABILITY TO SUPPRESS NON-WANTED AUDITORY PERCEPTS
    30.
    发明申请
    METHOD, DEVICE AND SYSTEM FOR INCREASING A PERSON'S ABILITY TO SUPPRESS NON-WANTED AUDITORY PERCEPTS 有权
    方法,设备和系统,用于增加个人的能力,以减少无意的审计意见

    公开(公告)号:US20160261962A1

    公开(公告)日:2016-09-08

    申请号:US15061000

    申请日:2016-03-04

    Applicant: Oticon A/S

    Abstract: The present disclosure relates to a method for reducing a listener's task-irrelevant auditory perception, the method comprising providing a measuring device or system configured for measuring the listener's alpha, beta gamma and/or theta activity and providing a generation device or system configured for generating an alpha, beta, gamma and/or theta activity boosting signal that, when provided to the listener will increase the listener's ongoing alpha, beta, gamma and/or theta activity. The listener's alpha, beta, gamma and/or theta activity is measured and if the measured alpha, beta, gamma and/or theta activity is below a predefined threshold, the listener's ongoing alpha, beta, gamma and/or theta activity is increased by the provision of the alpha, beta, gamma and/or theta activity boosting signal to the listener. This results in the listener's ongoing alpha, beta, gamma and/or theta activity being increased, resulting in facilitating reduction of task-irrelevant auditory perception, such as the auditory perception of noise or tinnitus, and thereby also increasing the listener's ability to understand speech under adverse listening conditions. The present disclosure further suggests using the listener's measured alpha, beta, gamma and/or theta activity to judge if the listener is ready to understand speech, and if this is not the case to delay a speech signal until a sufficiently high activity is present.

    Abstract translation: 本公开涉及一种用于减少听众的任务不相关的听觉感知的方法,所述方法包括提供被配置为测量听众的α,βγ和/或θ活动的测量装置或系统,并且提供被配置为产生 当提供给听众时,α,β,γ和/或θ活化增强信号将增加听众持续的α,β,γ和/或θ活性。 测量听众的α,β,γ和/或θ活性,并且如果所测量的α,β,γ和/或θ活性低于预定阈值,则听众持续的α,β,γ和/或θ活性增加 向收听者提供α,β,γ和/或θ活化增强信号。 这导致听众持续的alpha,beta,gamma和/或θ活动增加,从而有助于减少任务无关的听觉感知,例如听觉对噪音或耳鸣的感知,从而也增加听众理解语音的能力 在不利的听力条件下。 本公开进一步建议使用听众的测量的α,β,γ和/或θ活动来判断听众是否准备好理解语音,并且如果不是延迟语音信号,直到存在足够高的活动为止。

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