公开(公告)号：US10791402B2

公开(公告)日：2020-09-29

申请号：US16425670

申请日：2019-05-29

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：US10484800B2

公开(公告)日：2019-11-19

申请号：US15601521

申请日：2017-05-22

Applicant: Oticon A/S

Inventor： Jan Mark De Haan ,  Fares El-Azm

IPC: H04R25/00

Abstract: The application relates to a hearing aid comprising a forward path comprising a) a multitude of input units for providing a multitude of electric input signals INi, i=1, . . . , M, representative of sound, b) a multi input beam former filtering unit for providing a beam formed signal YBF from said multitude of electric input signals, c) a gain unit for applying a hearing aid gain GHA to said beam formed signal YBF, and providing a processed signal, and d) an output unit for providing stimuli perceivable by a user as sound based on said processed signal or a signal derived therefrom. The hearing aid further comprises e) a gain control unit for limiting said hearing aid gain GHA to a modified full-on gain value G′FOG. The multi input beam former filtering unit is configured to apply a current frequency dependent directional gain GDIR,i to each of said multitude of electric input signals INi, and the gain control unit is configured to determine the modified full-on gain value G′FOG in dependence of said current directional gains GDIR,i, i=1, . . . , M, and a previously determined full-on gain value GFOG. Thereby an improved hearing aid is provided. The invention may e.g. be used for hearing instruments, headsets, or active ear protection systems.

公开(公告)号：US20180359572A1

公开(公告)日：2018-12-13

申请号：US16003396

申请日：2018-06-08

Applicant: Oticon A/S

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

IPC: H04R25/00

CPC classification number: H04R25/407 ,  H04R1/406 ,  H04R25/552 ,  H04R2420/01

Abstract: A microphone system comprises a multitude of microphones; a signal processor connected to said number of microphones, and being configured to estimate a direction-to and/or a position of the target sound source relative to the microphone system based on a maximum likelihood methodology; and a database Θ comprising a dictionary of relative transfer functions representing direction-dependent acoustic transfer functions from said target signal source to each of said microphones relative to a reference microphone among said microphones, wherein individual dictionary elements of said database Θ of relative transfer functions comprises relative transfer functions for a number of different directions and/or positions relative to the microphone system; and wherein the signal processor is configured to determine one or more of the most likely directions to or locations of said target sound source. The invention may e.g. be used for the hearing aids or other portable audio communication devices.

公开(公告)号：US10051384B2

公开(公告)日：2018-08-14

申请号：US15482049

申请日：2017-04-07

Applicant: Oticon A/S

Inventor： Jan Mark De Haan

IPC: H04R25/00 ,  H04R3/00 ,  H04R1/10

Abstract: The application relates to a filter bank for an audio processing device, e.g. a hearing aid. The filter bank comprises an analysis filter bank comprising a plurality of M first filters hm(n), where m=0, 1, . . . , M−1 is a frequency band index, and whose impulse responses are modulated from a first linear phase prototype filter h(n) with a first predetermined modulation sequence ms1, n being a time index, the first prototype filter h(n) having a first filter length of Lh; a synthesis filter bank comprising a plurality of M second filters gm(n), m=0, 1, . . . , M−1, whose impulse responses are modulated from a second linear phase prototype filter g(n) with a second predetermined modulation sequence ms2, the second prototype filter g(n) having a second filter length of Lg; the plurality of first and second filters being arranged in pairs, each pair forming a frequency channel. the first modulation sequence is a complex or real function of time n, frequency band index m, and a first prototype filter delay τh, the second modulation sequence is a complex or real function of time n, frequency band index m, and a second prototype filter delay τg, the first filter length Lh and the second filter length Lg are both uneven, and the first prototype filter delay τh is equal to (Lh−1)/2 and second prototype filter delay τg, is equal to (Lg−1)/2, and the first and second prototype filter delay τh and τg, are constants of the analysis filter bank and the synthesis filter bank, respectively.

公开(公告)号：US09924279B2

公开(公告)日：2018-03-20

申请号：US15040042

申请日：2016-02-10

Applicant: Oticon A/S

Inventor： Jesper Jensen ,  Asger Heidemann Andersen ,  Jan Mark De Haan

IPC: H04R25/00 ,  H04R3/00

CPC classification number: H04R25/552 ,  H04R3/005 ,  H04R25/505 ,  H04R2225/43 ,  H04R2225/55

Abstract: The application relates to a binaural hearing system comprising left and right hearing devices, e.g. hearing aids, each comprising a) a multitude of input units, each providing a time-variant electric input signal xi(t) representing sound received at an ith input unit, t representing time, the electric input signal xi(t) comprising a target signal component si(t) and a noise signal component vi(t), the target signal component originating from a target signal source; b) a configurable signal processing unit for processing the electric input signals and providing a processed signal y(t); c) an output unit for creating output stimuli to the user, d) transceiver circuitry allowing information to be exchanged between the hearing devices, and e) a binaural speech intelligibility (SI) prediction unit for providing a binaural SI-measure of the predicted speech intelligibility of the user when exposed to said output stimuli, based on processed signals yl(t), yr(t) from the signal processing units of the respective left and right hearing devices. This allows the hearing devices to control the processing of the respective electric input signals based on said binaural SI-measure.

公开(公告)号：US11304014B2

公开(公告)日：2022-04-12

申请号：US17005972

申请日：2020-08-28

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：US11109163B2

公开(公告)日：2021-08-31

申请号：US16256742

申请日：2019-01-24

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.

公开(公告)号：US10321243B2

公开(公告)日：2019-06-11

申请号：US15608447

申请日：2017-05-30

Applicant: Oticon A/S

Inventor： Jan Mark De Haan ,  Fares El-Azm

IPC: H04R25/00 ,  G10L19/025

Abstract: A hearing device comprises A) a forward path, comprising a1) an input unit for providing a time-domain electric input signal as digital samples, a2) an analysis filter bank configured to provide a time-frequency representation of said electric input signal, a3) a signal processing unit for processing a signal of the forward path and providing a number of processed channel-signals, B) an onset detector configured to receive said time-domain electric input signal before entering said analysis filter bank, and to provide an onset control signal dependent on a current first order derivative of an envelope thereof, C) a level estimation unit for estimating a current level of said frequency sub-band signals, and comprising c1) a level adjustment unit configured to adjust the current levels of said frequency sub-band signals, and to control said level adjustment in dependence of said onset control signal. The invention may be used in audio devices, e.g. hearing aids.

公开(公告)号：US10154353B2

公开(公告)日：2018-12-11

申请号：US15426760

申请日：2017-02-07

Applicant: Oticon A/S

Inventor： Jesper Jensen ,  Asger Heidemann Andersen ,  Jan Mark De Haan

IPC: H04R25/00 ,  G10L25/60 ,  G10L21/0272

Abstract: Signal processing methods for predicting the intelligibility of speech, e.g., in the form of an index that correlate highly with the fraction of words that an average listener (amongst a group of listeners with similar hearing profiles) would be able to understand from some speech material are proposed. Specifically, solutions to the problem of predicting the intelligibility of speech signals, which are distorted, e.g., by noise or reverberation, and which might have been passed through some signal processing device, e.g., a hearing aid are described. In summary, the disclosure present solutions to the following problems: 1. Monaural, non-intrusive intelligibility prediction of noisy/processed speech signals 2. Binaural, non-intrusive intelligibility prediction of noisy/processed speech signals 3. Monaural and binaural intelligibility enhancement of noisy speech signals.

公开(公告)号：US10123134B2

公开(公告)日：2018-11-06

申请号：US15340369

申请日：2016-11-01

Applicant: Oticon A/S

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

IPC: H04R25/00 ,  G10L25/78

Abstract: A binaural hearing assistance method and system comprising left and right hearing assistance devices and a user interface are provided. 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.