公开(公告)号：US20210168518A1

公开(公告)日：2021-06-03

申请号：US17109329

申请日：2020-12-02

Applicant: Oticon A/S

Inventor： Jesper JENSEN ,  Nels Hede ROHDE ,  Thomas BENTSEN ,  Michael Syskind PEDERSEN ,  Svend Oscar PETERSEN

IPC: H04R25/00 ,  G10L25/84 ,  G10L25/60 ,  G06N3/08 ,  G06N3/04

Abstract: A hearing system configured to be located at or in the head of a user, comprises a) at least two microphones providing at least two electric input signals, b) an own voice detector, c) access to a database (Ol, Hl) comprising c1) relative or absolute own voice transfer function(s), and corresponding c2) absolute or relative acoustic transfer functions for a multitude of test-persons, d) a processor connectable to the at least two microphones, to the own voice detector, and to the database. The processor is configured A) to estimate an own voice relative transfer function for sound from the user's mouth to at least one of the at least two microphones, and B) to estimate personalized relative or absolute head related acoustic transfer functions from at least one spatial location other than the user's mouth to at least one of the microphones of the hearing system in dependence of the estimated own voice relative transfer function(s) and the database (Ol, Hl). The hearing system further comprises e) a beamformer configured to receive the at least two electric input signals, or processed versions thereof, and to determine personalized beamformer weights based on the personalized relative or absolute head related acoustic transfer functions or impulse responses. A method of determining personalized beamformer coefficients (wk) is further disclosed.

公开(公告)号：US20200221236A1

公开(公告)日：2020-07-09

申请号：US16737624

申请日：2020-01-08

Applicant: Oticon A/S

Inventor： Jesper JENSEN ,  Peter SOMMER ,  Svend Oscar PETERSEN ,  Karsten Bo RASMUSSEN ,  Jan M. DE HAAN ,  Michael Syskind PEDERSEN

IPC: H04R25/00

Abstract: A hearing device, e.g. a hearing aid, configured to play sound into an ear canal of a user, the hearing device comprising at least one input transducer (ITq) for picking up sound sq at said at least one input transducer from a sound field S around the hearing device and providing corresponding at least one electric input signal(s) INq representing said sound sq, i=1, . . . , Q, where Q≥1; an analogue to digital converter for converting said at least one electric input signal(s) to a digitized signal represented by discrete samples sq(p), where p is a time sample index, a processor for processing said at least one electric input signal sq(p) to a processed signal; an output transducer (OT) for converting an electric signal including said processed signal to an acoustic signal s″; a forward signal path of the hearing device being defined from an acoustic input to said at least one input transducer to an acoustic output of said output transducer having a forward signal propagation delay τHI of the hearing device, the hearing device further comprises a compensation unit for at least partially cancelling directly propagated sound from said sound field S that is propagated to the ear canal via a direct acoustic propagation path, wherein the compensation unit is configured to predict said directly propagated sound and to play it in opposite phase of said directly propagated sound. A method of operating a hearing device is further disclosed.

公开(公告)号：US20190182607A1

公开(公告)日：2019-06-13

申请号：US16218172

申请日：2018-12-12

Applicant: Oticon A/S

Inventor： Michael Syskind PEDERSEN ,  Jesper JENSEN

IPC: H04R25/00

Abstract: The application relates to a hearing device, e.g. a hearing aid, adapted for being located at or in an ear of a user, or for being fully or partially implanted in the head of the user. The application further relates to a method of operating a hearing device. The hearing device comprises a) an input unit for providing at least one electric input signal in a frequency sub-band representation comprising a number K of frequency bands, b) a frequency band to channel allocation unit for allocating said K frequency bands to a number N of frequency channels for each of said electric input signals, wherein K>N; c) antenna and transceiver circuitry allowing reception of at least one further electric signal in said N frequency channels from another device, e.g. another hearing device, d) a first beamformer filtering unit for providing at least one channel beamformer based on said at least one electric input signal and said at least one further electric signal received from said other device, in said N frequency channels. The hearing device may further comprise a level to gain transformation unit for receiving said at least one channel beamformer and providing a post filter gain for each frequency channel in dependence thereof. The invention may e.g. be used in binaural hearing aid systems.

公开(公告)号：US20190158965A1

公开(公告)日：2019-05-23

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 ,  H04R3/00 ,  G10L21/0208

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：US20180233160A9

公开(公告)日：2018-08-16

申请号：US15608224

申请日：2017-05-30

Applicant: Oticon A/S

Inventor： Jesper JENSEN ,  Ulrik KJEMS ,  Andreas Thelander BERTELSEN ,  Michael Syskind PEDERSEN

IPC: G10L21/0232 ,  H04R25/00 ,  H04R1/10 ,  A61F11/06 ,  H04B1/3827 ,  H04M1/60

CPC classification number: G10L21/0232 ,  A61F11/06 ,  G10L21/0216 ,  G10L21/0264 ,  H04B1/3833 ,  H04M1/6041 ,  H04R1/1083 ,  H04R25/50 ,  H04R25/505 ,  H04R25/558 ,  H04R2225/43

Abstract: An audio processing device comprises a) at least one input unit for providing 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 detection and/or reduction system configured to b1) determine an a posteriori signal to noise ratio estimate γ(k,n) of said electric input signal, and to b2) determine an a priori target signal to noise signal ratio estimate ζ(k,n) of said electric input signal from said a posteriori signal to noise ratio estimate γ(k,n) based on a recursive decision directed algorithm. The application further relates to a method of of estimating an a priori signal to noise ratio. The invention may e.g. be used for the hearing aids, headsets, ear phones, active ear protection systems, handsfree telephone systems, mobile telephones, etc.(Fig. 1A should be published)

公开(公告)号：US20170256269A1

公开(公告)日：2017-09-07

申请号：US15445472

申请日：2017-02-28

Applicant: Oticon A/S

Inventor： Jesper JENSEN ,  Jan Mark DE HAAN ,  Asger Heidemann ANDERSEN

IPC: G10L21/02 ,  G10L25/06 ,  G10L21/038 ,  H04R25/00 ,  G10L21/0232

CPC classification number: G10L21/0205 ,  A61N1/36038 ,  A61N1/378 ,  G10L21/0232 ,  G10L21/038 ,  G10L25/06 ,  G10L25/60 ,  H04R25/505 ,  H04R25/552 ,  H04R25/554 ,  H04R25/558 ,  H04R25/606 ,  H04R25/70 ,  H04R2225/025 ,  H04R2225/41 ,  H04R2225/43 ,  H04R2225/55

Abstract: A monaural intrusive speech intelligibility predictor unit comprises: first and second input units for providing time-frequency representations s(k,m) and x(k,m) of noise-free and noisy and/or processed versions of a target signal, respectively, k being a frequency bin index, k=1, 2, . . . , K, and m being a time index; first and second envelope extraction units for providing time-frequency sub-band representations of the signals sj(m) and xj(m), j being a frequency sub-band index, j=1, 2, . . . , J; first and second time-frequency segment division units for dividing the time-frequency sub-band representations sj(m) and xj(m) into time-frequency segments Sm and Xm corresponding to a number N of successive samples of the sub-band signals; an intermediate speech intelligibility calculation unit adapted for providing intermediate speech intelligibility coefficients dm estimating an intelligibility of said time-frequency segment Xm, based on said time-frequency segments Sm and Xm or normalized and/or transformed versions {tilde over (S)}m, and {tilde over (X)}m thereof; and a final monaural speech intelligibility calculation unit for calculating a final monaural speech intelligibility predictor d estimating an intelligibility of said noisy and/or processed version x of the target signal by combining said intermediate speech intelligibility coefficients dm, or a transformed version thereof, over time. A hearing aid comprises a monaural, intrusive intelligibility predictor unit, and a configurable signal processor adapted to control or influence the processing of one or more electric input signals representing environment sound to maximize the final speech intelligibility predictor d. A binaural hearing aid system comprises first and second hearing aids.

公开(公告)号：US20250030994A1

公开(公告)日：2025-01-23

申请号：US18909364

申请日：2024-10-08

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：US20240430624A1

公开(公告)日：2024-12-26

申请号：US18732872

申请日：2024-06-04

Applicant: Oticon A/S

Inventor： Michael Syskind PEDERSEN ,  Jesper JENSEN ,  Adam KUKLASINSKI ,  Fares EL-AZM ,  Sam NEES ,  Sigurdur SIGURDSSON ,  Silvia TARANTINO ,  Poul HOANG ,  Jan M. DE HAAN ,  Mojtaba FARMANI ,  Svend Oscar PETERSEN

IPC: H04R25/00

Abstract: A hearing aid including a multitude M≥2 microphones adapted for providing M electric input signals (x) representative of an environment of a user, at least one beamformer for generating at least one beamformed signal in dependence of beamformer weights (w) configured to be applied to said electric input signals, thereby providing said at least one beamformed signal (Y) as a weighted sum of the M of electric input signals. The beamformer weights (w) are adaptively optimized to a plurality of target positions (θ) by maximizing a target signal to noise ratio (SNR) for sound from the target positions (θ). The signal to noise ratio may be determined in a number of different ways, e.g. in dependence of first and second output variances (|YT2, |YV|2) of said beamformer, when said electric input signals (x) or said beamformed signal (Y) are/is labelled as target (T) and noise (V), respectively.

公开(公告)号：US20240155297A1

公开(公告)日：2024-05-09

申请号：US18405455

申请日：2024-01-05

Applicant: Oticon A/S

Inventor： Eleni KOUTROULI ,  Michael Syskind PEDERSEN ,  Jesper JENSEN ,  Jan M. DE HAAN

IPC: H04R25/00

CPC classification number: H04R25/407 ,  H04R25/405 ,  H04R25/604 ,  A61N1/36038

Abstract: A binaural hearing system comprises first and second hearing aids, each comprising antenna and transceiver circuitry allowing the exchange of audio signals between them and a BTE-part adapted for being located at or behind the external ear (pinna) of the user and comprising front and rear input transducers providing respective front and rear electric input signals. Each of the hearing aids comprises primary and secondary adaptive 2-channel beamformers each providing a spatially filtered signal based on first and second beamformer-input signals. The primary and secondary 2-channel beamformers are coupled in a cascaded structure. The inputs to the primary 2-channel beamformers are, locally generated, front and rear electric input signals. The inputs to the secondary 2-channel beamformer may be beamformed signals from the first and second hearing aids respectively. The spatially filtered signal of the secondary 2-channel beamformer may comprise an estimate of a target signal in the environment of the user.

公开(公告)号：US20230308817A1

公开(公告)日：2023-09-28

申请号：US18187715

申请日：2023-03-22

Applicant: Oticon A/S

Inventor： Michael Syskind PEDERSEN ,  Jesper JENSEN ,  Nels Hede ROHDE ,  Vasudha SATHYAPRIYAN

IPC: H04R25/00

CPC classification number: H04R25/507 ,  H04R25/407 ,  H04R2225/43

Abstract: A hearing system comprises at least one hearing aid (HA) configured to be worn by a user at or in an ear of the user, and an external, portable processing device (EPD). The at least one hearing aid comprises a) at least one HA-input transducer for providing at least one HA-electric input signal representing sound in the environment of the hearing aid; b) a configurable noise reduction system for reducing noise in the at least one HA-electric input signal or in a signal originating therefrom based on a resulting set of noise reduction parameters; c) a noise reduction controller configured to determine a local set of noise reduction parameters; and d) a data receiver configured to receive data via a communication link from the external processing device. The external processing device comprises A) at least one EPD-input transducer for providing at least one EPD-electric input signal representing sound in the environment of the external processing device; B) a parameter estimator for providing an external set of noise reduction parameters configured to reduce noise in the at least one EPD-electric input signal, or in the at least one HA-electric input signal, or in a signal originating therefrom; and C) a data transmitter configured to transmit data, including said external set of noise reduction parameters, via said communication link to the hearing aid. The noise reduction controller is configured to determine said resulting set of noise reduction parameters based on said local set of noise reduction parameters, or on said external set of noise reduction parameters, or on a mixture thereof, in dependence of a noise reduction control signal. A hearing aid and a method of operating a hearing system is further disclosed.