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：US10262675B2

公开(公告)日：2019-04-16

申请号：US15198084

申请日：2016-06-30

Applicant: Oticon A/S

Inventor： Jesper Jensen

IPC: G10L21/0232 ,  G10L25/84 ,  G10L21/0308 ,  G10L21/0364 ,  G10L15/20 ,  G10L21/0208

Abstract: A system for enhancement of noisy speech comprises an input unit is configured to subdivide the spectrum of the input signal into a plurality of frequency sub-bands and to provide time-frequency coefficients X(k,m) for a sequence [X(k,m′−D+1) . . . X(k,m′)] of observable noisy signal samples for each of said frequency sub-bands, where k and m are frequency and time indices, respectively, and D is larger than 1. The system further comprises enhancement processing unit configured to receive X(k,m) and to provide enhanced time-frequency coefficients Ŝ(k,m), a storage for statistical model(s) of speech and for statistical model(s) of noise, and an optimizing unit configured to provide said enhanced time-frequency coefficients Ŝ(k,m) using said statistical model of speech and said statistical model of noise, while considering said sequence [X(k,m′−D+1) . . . X(k,m′)] of observable noisy signal samples. Thereby the enhancement processing unit is able to determine the enhanced time-frequency coefficients based on the time-frequency coefficients for each of said frequency sub-bands.

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.

公开(公告)号：US10225669B2

公开(公告)日：2019-03-05

申请号：US15895266

申请日：2018-02-13

Applicant: Oticon A/S

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

IPC: H04R25/00 ,  H04R3/00

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：US09832576B2

公开(公告)日：2017-11-28

申请号：US15042944

申请日：2016-02-12

Applicant: OTICON A/S

Inventor： Jesper Jensen ,  Michael Syskind Pedersen

IPC: H04R25/00 ,  H04R3/00

CPC classification number: H04R25/554 ,  H04R3/005 ,  H04R25/405 ,  H04R25/407 ,  H04R2201/40 ,  H04R2225/43 ,  H04R2225/51 ,  H04R2225/55 ,  H04R2420/07 ,  H04R2430/23

Abstract: 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 is provided.

公开(公告)号：US09100736B2

公开(公告)日：2015-08-04

申请号：US13622880

申请日：2012-09-19

Applicant: OTICON A/S

Inventor： Jesper Jensen ,  Meng Guo

IPC: H04B15/00 ,  H04M9/08 ,  H04R3/02 ,  H04R3/00 ,  H04R25/00 ,  H04R27/00

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。

公开(公告)号：US12302067B2

公开(公告)日：2025-05-13

申请号：US18608499

申请日：2024-03-18

Applicant: Oticon A/S

Inventor： Nels Hede Rohde ,  Thomas Bentsen ,  Anders Brødløs Olsen ,  Asger Heidemann Andersen ,  Michael Syskind Pedersen ,  Svend Oscar Petersen ,  Jesper Jensen ,  Michael Smed Kristensen

IPC: H04R25/00 ,  G10L15/22 ,  G10L15/16

Abstract: A hearing device, e.g. a hearing aid, is configured to be arranged at least partly on a user's head or at least partly implanted in a user's head. The hearing device comprises a) at least one input transducer for picking up an input sound signal from the environment and providing at least one electric input signal representing said input sound signal; b) a signal processor connected to the at least one input transducer, the signal processor being configured to analyze the electric input signal and to provide a transmit control signal in dependence thereof; c) a memory buffer, e.g. a cyclic buffer, for storing a current time segment of a certain duration of said at least one electric input signal, or a processed version thereof; and a transmitter for transmitting at least a part of said time segment, or a processed version thereof, to an external device in dependence of said transmit control signal.

公开(公告)号：US12277952B2

公开(公告)日：2025-04-15

申请号：US18080942

申请日：2022-12-14

Applicant: Oticon A/S

Inventor： Jan M. De Haan ,  Robert Rehr ,  Sebastien Curdy-Neves ,  Svend Feldt ,  Jesper Jensen ,  Michael Syskind Pedersen ,  Michael Noes Gätke ,  Mohammad El-Sayed ,  Stig Petri ,  Karsten Bonke ,  Gary Jones ,  Poul Hoang

IPC: H04B15/00 ,  G10K11/178 ,  G10L21/0216 ,  H04R1/10 ,  H04R1/40 ,  H04R3/00

Abstract: A hearing device includes a) a multitude of input transducers providing a corresponding multitude of electric input signals; and b) a processor for providing a processed signal in dependence of the electric input signals. The processor includes b1) a beamformer for providing a spatially filtered signal in dependence of electric input signals and beamformer filter coefficients determined in dependence of a fixed steering vector including as elements respective acoustic transfer functions from a target signal source, to each of said multitude of input transducers; and b2) a target adaptation module connected to the input transducers and to at least one beamformer, the target adaptation module being configured to provide compensation signals to compensate the electric input signals so that they match the fixed steering vector.

公开(公告)号：US12143775B2

公开(公告)日：2024-11-12

申请号：US17981648

申请日：2022-11-07

Applicant: Oticon A/S

Inventor： Michael Syskind Pedersen ,  Asger Heidemann Andersen ,  Jesper Jensen ,  Nels Hede Rohde ,  Anders Brødløs Olsen ,  Michael Smed Kristensen ,  Thomas Bentsen ,  Svend Oscar Petersen

IPC: H04R25/00 ,  G06N3/063 ,  G10L15/08 ,  G10L17/00

Abstract: A hearing device comprises an input transducer comprising a microphone for providing an electric input signal representative of sound in the environment of the hearing device, a pre-processor for processing electric input signal and providing a multitude of feature vectors, each being representative of a time segment thereof, a neural network processor adapted to implement a neural network for implementing a detector configured to provide an output indicative of a characteristic property of the at least one electric input signal, the neural network being configured to receive said multitude of feature vectors as input vectors and to provide corresponding output vectors representative of said output of said detector in dependence of said input vectors. The hearing device further comprises a transceiver comprising a transmitter and a receiver for establishing a communication link to another part or device or server, at least in a particular adaptation-mode of operation, and a selector for—in said particular adaptation—mode of operation—routing said feature vectors to said transmitter for transmission to said another part or device or server, and—in a normal mode of operation—to route said feature vectors to said neural network processor for use as inputs to said neural network, a neural network controller connected to said neural network processor for—in said particular adaptation-mode of operation—receiving optimized node parameters, and to apply said optimized node parameters to said nodes of said neural network to thereby implement an optimized neural network in said neural network processor, wherein the optimized node parameters have been selected among a multitude of sets of node parameters for respective candidate neural networks according to a predefined criterion in dependence of said feature vectors. A method of selecting optimized parameters for a neural network for use in a portable hearing device is further disclosed. The invention may e.g. be used in hearing aids or headsets, or similar, e.g. wearable, devices.

公开(公告)号：US12028685B2

公开(公告)日：2024-07-02

申请号：US17970275

申请日：2022-10-20

Applicant: Oticon A/S

Inventor： Nels Hede Rohde ,  Thomas Bentsen ,  Anders Brødløs Olsen ,  Michael Syskind Pedersen ,  Svend Feldt ,  Jesper Jensen

IPC: H04R25/00 ,  G01B17/00 ,  H04M1/72409

CPC classification number: H04R25/505 ,  G01B17/00 ,  H04M1/72409 ,  H04R25/30 ,  H04R25/405 ,  H04R25/407 ,  H04R25/552 ,  H04R25/558 ,  H04R25/604 ,  H04R25/609 ,  H04R2225/021 ,  H04R2225/025 ,  H04R2225/43 ,  H04R2225/55 ,  H04R2225/67

Abstract: A hearing aid system comprises a hearing aid, and a portable auxiliary device’ adapted to establish a communication link between them. The hearing aid comprises a microphone providing an electric input signal, a signal processor, and an output unit. The auxiliary device comprises a microphone providing an auxiliary electric input signal, and a user control interface allowing a user to initiate a specific calibration mode of operation of the hearing aid system. The signal processor of the hearing aid is configured to receive corresponding time segments of said electric input signal and said auxiliary electric input signal to provide an estimate of an acoustic transfer function from said microphone of said auxiliary device to said microphone of said hearing aid. A method of operating a hearing aid system is further disclosed. The invention may e.g. be used in various applications related to own voice detection and estimation.