公开(公告)号：US20220240026A1

公开(公告)日：2022-07-28

申请号：US17575968

申请日：2022-01-14

Applicant: Oticon A/S

Inventor： Adel Zahedi ,  Michael Syskind Pedersen ,  Thomas Ulrich Christiansen ,  Lars Bramsløw ,  Jesper Jensen

IPC: H04R25/00 ,  G10L25/78

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.

公开(公告)号：US11363389B2

公开(公告)日：2022-06-14

申请号：US16950532

申请日：2020-11-17

Applicant: Oticon A/S

Inventor： Michael Syskind Pedersen ,  Svend Oscar Petersen ,  Meng Guo ,  Karsten Bo Rasmussen ,  Troels Holm Pedersen ,  Kenneth Rueskov Møller

IPC: H04R25/00

Abstract: A hearing device comprises an ITE-part adapted for being located at or in an ear canal of the user comprising a housing comprising a seal towards walls or the ear canal, the ITE part comprising at least two microphones located outside the seal and facing the environment, and at least one microphone located inside the seal and facing the ear drum. The hearing device may comprise a beamformer filter connected to said at least three microphones comprising a first beamformer for spatial filtering said sound in the environment based on input signals from said at least two microphones facing the environment, and a second beamformer for spatial filtering sound reflected from the ear drum based on said at least one electric input signal from said at least one microphone facing the ear drum and at least one of said input signals from said at least two microphones facing the environment.

公开(公告)号：US11185257B2

公开(公告)日：2021-11-30

申请号：US16917319

申请日：2020-06-30

Applicant: Oticon A/S

Inventor： Niels Henrik Pontoppidan ,  Thomas Lunner ,  Michael Syskind Pedersen ,  Lars Ivar Hauschultz ,  Povl Koch ,  Graham Naylor ,  Eline Borch Petersen

IPC: H04R25/00 ,  A61B5/12 ,  G06K9/00 ,  A61B5/00 ,  G06F3/01 ,  A61B5/38 ,  A61B5/291 ,  A61B5/16 ,  A61B5/374 ,  A61B5/375

Abstract: The present disclosure relates to communication devices. Such devices may comprise input for receiving sound signal to be processed and presented to a user, and output for outputting the processed signal to a user perceivable as sound. Such processing may be performed by use of a processor for processing the sound signal in dependence of a setting or a set of setting to compensate a hearing loss profile. Further, the communication device may comprise a bio-signal acquisition and amplifier component in communication with a user interface for providing the bio-signals as input to the user interface, the user interface controlling the setting or set of setting for operation of the communication device.

公开(公告)号：US11140494B2

公开(公告)日：2021-10-05

申请号：US16832980

申请日：2020-03-27

Applicant: Oticon A/S

Inventor： Michael Syskind Pedersen ,  Jesper Jensen

IPC: H04R25/00 ,  H04R25/02

Abstract: A hearing system comprises a hearing device worn on the head, or fully or partially implanted in the head, of a user, and external audio transmitters. The hearing system allows wireless communication to be established between the hearing device and the audio transmitters. The hearing device comprises microphones providing respective electric input signals; a beamformer filter providing a beamformed signal from the electric input signals; and an output unit. The hearing system further comprises a selector/mixer for selecting and possibly mixing one or more of the electric input signals or the beamformed signal and external electric signals from the audio transmitters, and providing a current input sound signal based thereon for presentation to the user. The selector/mixer is controlled by a source selection processor, which determines the source selection control signal based on a comparison of the beamformed signal and the external electric sound signals or processed versions thereof.

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

Inventor： Eleni Koutrouli ,  Michael Syskind Pedersen ,  Jesper Jensen ,  Jan M. De Haan

IPC: H04R1/40 ,  H04R25/00 ,  A61N1/36

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.

公开(公告)号：US10856087B2

公开(公告)日：2020-12-01

申请号：US16448711

申请日：2019-06-21

Applicant: Oticon A/S

Inventor： Michael Syskind Pedersen ,  Angela Josupeit ,  Sigurdur Sigurdsson ,  Anders Vinther Olsen ,  Nels Hede Rohde

IPC: H04R25/00

Abstract: A hearing device, e.g. a hearing aid, comprises an input unit; an output unit; an adaptive beamformer filtering unit configured to provide a spatially filtered signal based on a multitude of electric input signals from the input unit and an adaptively updated adaptation factor β; a memory, wherein A) a reference value REF, equal to or dependent on a value, βov, of said adaptation factor β determined when a voice of the user is present, or B) a set of parameters for classification based on logistic regression or a neural network, is stored; and an own voice detector configured to provide an estimate of whether or not, or with what probability, a given input sound originates from the voice of the user, and wherein said estimate is dependent on a) a current value of said adaptation factor β and said reference value REF, or on b) said set of parameters for classification based on logistic regression or a neural network, respectively.

公开(公告)号：US10701494B2

公开(公告)日：2020-06-30

申请号：US16156723

申请日：2018-10-10

Applicant: Oticon A/S

Inventor： Jesper Jensen ,  Michael Syskind Pedersen ,  Adel Zahedi

IPC: H04R25/00

Abstract: The application relates to a hearing device, e.g. a hearing aid, adapted for being worn by a user and for receiving sound from the environment of the user to process the sound with a view to the user's intelligibility of speech in said sound, wherein an estimate of the user's intelligibility of speech in said sound being defined by a speech intelligibility measure I of said sound at a current point in time t, the hearing device comprising a) an input unit for providing a number of electric input signals y, each representing said sound in the environment of the user, b) a signal processor for processing said number of electric input signals y according to a configurable parameter setting Θ of one or more processing algorithms, which when applied to said number of electric input signals y provides a processed signal yp(Θ) in dependence thereof, the signal processor being configured to provide a resulting signal yres, c) a controller configured to control the processor to provide said resulting signal yres at a current point in time t in dependence of c1) a parameter set Φ defining a hearing profile of the user, c2) said electric input signal(s) y or characteristics extracted from said electric input signal(s), e.g. a noise covariance matrix Cv and/or covariance matrix CY of noisy signals, c3) a current value I(y) of said speech intelligibility measure I for at least one of said electric input signals y, c4) a desired value Ides of said speech intelligibility measure, c5) a first parameter setting Θ1 of said one or more processing algorithms, c6) a current value I(yp(Θ1)) of said speech intelligibility measure I for a first processed signal yp(Θ1) based on said first parameter setting Θ1, and c7) a second parameter setting Θ′ of said one or more processing algorithms, which, when applied to said number of electric input signals y, provides a second processed signal yp(Θ′) exhibiting said desired value Ides of said speech intelligibility measure. The application further relates to a method of operating a hearing device. The invention may e.g. be used in hearing aid systems, or other portable audio processing systems.

公开(公告)号：US10433076B2

公开(公告)日：2019-10-01

申请号：US16291899

申请日：2019-03-04

Applicant: Oticon A/S

Inventor： Jesper Jensen ,  Andreas Thelander Bertelsen ,  Michael Syskind Pedersen

IPC: G10L15/20 ,  H04R25/00

Abstract: An audio processing device comprises a) at least one input unit for providing a time-frequency representation Y(k,n) of an electric input signal representing sound consisting of target speech and noise signal components, where k and n are frequency band and time frame indices, respectively, b) a noise reduction system configured to: determine a first signal to noise ratio estimate γ(k,n) of said electric input signal, and determine a second signal to noise signal ratio estimate ζ(k,n) of said electric input signal from said first signal to noise ratio estimate γ(k,n) based on a recursive algorithm providing non-linear smoothing, and wherein parameters of said smoothing are determined in dependence of the first and/or the second signal to noise ratio estimates corresponding to a multitude of frequency band indices. The invention may be used in hearing aids, headsets, ear phones, active ear protection systems, handsfree telephone systems, mobile telephones, etc.

公开(公告)号：US10341786B2

公开(公告)日：2019-07-02

申请号：US14561960

申请日：2014-12-05

Applicant: Oticon A/S

Inventor： Michael Syskind Pedersen ,  Jesper Jensen ,  Jan Mark De Haan

IPC: H04R25/00 ,  H04R1/10

Abstract: The present invention regards a hearing aid device at least one environment sound input, a wireless sound input, an output transducer, electric circuitry, a transmitter unit, and a dedicated beamformer-noise-reduction-system. The hearing aid device is configured to be worn in or at an ear of a user. The at least one environment sound input is configured to receive sound and to generate electrical sound signals representing sound. The wireless sound input is configured to receive wireless sound signals. The output transducer is configured to stimulate hearing of the hearing aid device user. The transmitter unit is configured to transmit signals representing sound and/or voice. The dedicated beamformer-noise-reduction-system is configured to retrieve a user voice signal representing the voice of a user from the electrical sound signals. The wireless sound input is configured to be wirelessly connected to a communication device and to receive wireless sound signals from the communication device. The transmitter unit is configured to be wirelessly connected to the communication device and to transmit the user voice signal to the communication device.

公开(公告)号：US10231062B2

公开(公告)日：2019-03-12

申请号：US15608294

申请日：2017-05-30

Applicant: Oticon A/S

Inventor： Michael Syskind Pedersen ,  Jan Mark De Haan ,  Jesper Jensen

IPC: H04R25/00 ,  G10L21/0208 ,  H04R3/00

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.