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    HEARING DEVICE COMPRISING A NOISE REDUCTION SYSTEM
    1.
    发明申请
    HEARING DEVICE COMPRISING A NOISE REDUCTION SYSTEM 审中-公开

    公开(公告)号：US20200260198A1

    公开(公告)日：2020-08-13

    申请号：US16785167

    申请日：2020-02-07

    Applicant: Oticon A/S

    Inventor： Asger Heidemann ANDERSEN ,  Jesper JENSEN ,  Michael Syskind PEDERSEN ,  Nels Hede ROHDE ,  Anders Brødløs OLSEN ,  Michael Smed KRISTENSEN ,  Thomas BENTSEN ,  Andreas Thelander BERTELSEN

    IPC: H04R25/00 ,  G10L25/51 ,  G06N3/08

    Abstract: A hearing device, e.g. a hearing aid, is configured to be worn by a user at or in an ear or to be fully or partially implanted in the head at an ear of the user. The hearing device comprises a) an input unit for providing at least one electric input signal in a time frequency representation k, m, where k and m are frequency and time indices, respectively, and k represents a frequency channel, the at least one electric input signal being representative of sound and comprising target signal components and noise components; and b) a signal processor comprising b1) an SNR estimator for providing a target signal-to-noise ratio estimate for said at least one electric input signal in said time frequency representation; and b2) an SNR-to-gain converter for converting said target signal-to-noise ratio estimate to respective gain values in said time frequency representation. The signal processor comprises a neural network, wherein the weights of the neural network have been trained with a plurality of training signals. A method of operating a hearing aid is further disclosed. The invention may e.g. be used in audio devices, such as hearing aids, headsets, mobile telephones, etc., operating in noisy acoustic environments.

    HEARING SYSTEM COMPRISING A HEARING DEVICE AND A MICROPHONE UNIT FOR PICKING UP A USER'S OWN VOICE
    2.
    发明申请
    HEARING SYSTEM COMPRISING A HEARING DEVICE AND A MICROPHONE UNIT FOR PICKING UP A USER'S OWN VOICE 审中-公开

    公开(公告)号：US20180054683A1

    公开(公告)日：2018-02-22

    申请号：US15677499

    申请日：2017-08-15

    Applicant: Oticon A/S

    Inventor： Michael Syskind PEDERSEN ,  Adis BJELOSEVIC ,  Andreas Thelander BERTELSEN

    IPC: H04R25/00 ,  G10L21/0208

    CPC classification number: H04R25/554 ,  G10L21/0208 ,  G10L2021/02166 ,  H04R1/1041 ,  H04R25/405 ,  H04R25/407 ,  H04R25/505 ,  H04R25/552 ,  H04R2225/43 ,  H04R2225/51 ,  H04R2225/67 ,  H04R2430/20

    Abstract: A body worn hearing system comprises a hearing device, e.g. a hearing aid, and a separate microphone unit for picking up a voice of the user. The hearing device comprises a forward path comprising an input unit for providing an electric input signal representative of sound in the environment, a signal processing unit for providing a processed signal, and an output unit for generating stimuli perceivable as sound when presented to the user based on said processed signal. The microphone unit comprises a multitude M of microphones, and a multi-input noise reduction system for providing an estimate Ŝ of a target signal s comprising the user's voice, and comprising a multi-input beamformer filtering unit operationally coupled to said multitude of microphones. The hearing device and the microphone unit are configured to receive and transmit an audio signal from/to a communication device, respectively, and for establishing a communication link between them for exchanging information. The hearing system comprises a control unit configured to estimate a current distance between the user's mouth and the microphone unit, and to control the multi-input noise reduction system in dependence of said distance.

    BINAURAL HEARING AID SYSTEM AND A HEARING AID COMPRISING OWN VOICE ESTIMATION
    6.
    发明申请
    BINAURAL HEARING AID SYSTEM AND A HEARING AID COMPRISING OWN VOICE ESTIMATION 有权

    公开(公告)号：US20220132252A1

    公开(公告)日：2022-04-28

    申请号：US17512125

    申请日：2021-10-27

    Applicant: Oticon A/S

    Inventor： Michael Syskind PEDERSEN ,  Jan M. DE HAAN ,  Justyna WALASZEK ,  Anders Vinther OLSEN ,  Karsten BONKE ,  Matias Tofteby BACH ,  Sigurdur SIGURDSSON ,  Mojtaba FARMANI ,  Andreas Thelander BERTELSEN ,  Angela JOSUPEIT ,  Claus Forup Corlin JESPERSGAARD ,  Gusztáv LÕCSEI

    IPC: H04R25/00

    Abstract: A binaural hearing aid system includes first and second hearing aids configured to be worn by a user at or in respective first and second ears of the user, each of the first and second hearing aids including: at least one input transducer configured to pick up a sound at the at least one input transducer and to convert the sound to at least one electric input signal representative of the sound, the sound at the at least one input transducer including a mixture of a target signal and noise; a controller for evaluating the sound at the at least one input transducer and providing a control signal indicative of a property of the sound; a transceiver configured to establish a communication link between the first and second hearing aids allowing the exchange of the control signal between the first and second hearing aids; a transmitter for establishing an audio link for transmitting the at least one electric input signal, or a processed version thereof, to another device. The controller is configured to: transmit the locally provided control signal to, and receive a corresponding remotely provided control signal from the opposite hearing aid via the communication link, and to compare the locally provided and the remotely provided control signals and to provide a comparison control signal in dependence thereof, and to transmit the at least one electric input signal, or a processed version thereof, to the another device via the audio link in dependence of the comparison control signal.

    HEARING DEVICE COMPRISING A BEAMFORMER FILTERING UNIT
    8.
    发明申请
    HEARING DEVICE COMPRISING A BEAMFORMER FILTERING UNIT 审中-公开

    公开(公告)号：US20170295437A1

    公开(公告)日：2017-10-12

    申请号：US15482188

    申请日：2017-04-07

    Applicant: Oticon A/S

    Inventor： Andreas Thelander BERTELSEN ,  Michael Syskind PEDERSEN ,  Jesper JENSEN ,  Thomas KAULBERG ,  Morten CHRISTOPHERSEN

    IPC: H04R25/00

    CPC classification number: H04R25/407 ,  G10L21/0232 ,  G10L2021/02166 ,  H04R25/353 ,  H04R25/405 ,  H04R25/552 ,  H04R25/554 ,  H04R25/558 ,  H04R25/606 ,  H04R2225/41 ,  H04R2225/43 ,  H04R2225/61 ,  H04R2430/20

    Abstract: A hearing aid comprises a) first and second microphones b) an adaptive beamformer filtering unit comprising, b1) a first and second memories comprising a first and second sets of complex frequency dependent weighting parameters representing a first and second beam patterns, where said first and second sets of weighting parameters are predetermined initial values or values updated during operation of the hearing aid, b3) an adaptive beamformer processing unit providing an adaptation parameter βopt(k) representing an adaptive beam pattern configured to attenuate unwanted noise under the constraint that sound from a target direction is essentially unaltered, b4) a third memory comprising a fixed adaptation parameter βfix(k) representing a third, fixed beam pattern, b5) a mixing unit providing a resulting complex, frequency dependent adaptation parameter βmix(k) as a combination of said fixed and adaptively determined frequency dependent adaptation parameters βfix(k) and βopt(k), respectively, and b6) a resulting beamformer (Y) for providing a resulting beamformed signal YBF based on first and second microphone signals, said first and second sets of complex frequency dependent weighting parameters, and said resulting complex, frequency dependent adaptation parameter βmix(k).

    HEARING DEVICE COMPRISING A NOISE REDUCTION SYSTEM
    10.
    发明申请
    HEARING DEVICE COMPRISING A NOISE REDUCTION SYSTEM 有权

    公开(公告)号：US20220124444A1

    公开(公告)日：2022-04-21

    申请号：US17562612

    申请日：2021-12-27

    Applicant: Oticon A/S

    Inventor： Asger Heidemann ANDERSEN ,  Jesper JENSEN ,  Michael Syskind PEDERSEN ,  Nels Hede ROHDE ,  Anders Brødløs OLSEN ,  Michael Smed KRISTENSEN ,  Thomas BENTSEN ,  Andreas Thelander BERTELSEN

    IPC: H04R25/00

    Abstract: A hearing device, e.g. a hearing aid, is configured to be worn by a user at or in an ear or to be fully or partially implanted in the head at an ear of the user. The hearing device comprises a) an input unit for providing at least one electric input signal in a time frequency representation k, m, where k and m are frequency and time indices, respectively, and k represents a frequency channel, the at least one electric input signal being representative of sound and comprising target signal components and noise components; and b) a signal processor comprising b1) a target signal estimator for providing an estimate of the target signal; b2) a noise estimator for providing an estimate of the noise; b3) a gain estimator for providing respective gain values in said time frequency representation in dependence of said target signal estimate and said noise estimate, wherein said gain estimator comprises a neural network, wherein the weights of the neural network have been trained with a plurality of training signals, and wherein the outputs of the neural network comprise real or complex valued gains, or separate real valued gains and real valued phases. The invention may e.g. be used in audio devices, such as hearing aids, headsets, mobile telephones, etc., operating in noisy acoustic environments.

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