公开(公告)号：US20200314562A1

公开(公告)日：2020-10-01

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) at least one hearing device adapted for being worn on the head, or fully or partially implanted in the head, of a user, and b) a multitude of external, spatially separated, audio transmitters, each providing respective external electric sound signals comprising audio. The hearing system is configured to allow wireless communication, including audio communication, between said hearing device and said external audio transmitters, at least from said external audio transmitters to said at least one hearing device, to be established. The at least one hearing device comprises A) a multitude of microphones, each providing an electric input signal representative of sound; B) a beamformer filter providing a beamformed signal from said multitude of electric input signals; and C) an output unit configured to provide stimuli perceivable by the user as sound. The hearing system further comprises c) a selector/mixer for selecting and possibly mixing one or more of said electric input signals or said beamformed signal from the hearing device and said external electric signals from the audio transmitters and to provide a current input sound signal based thereon intended for being presented to the user, possibly in a further processed form. The selector/mixer is controlled by a source selection control signal provided by a source selection processor. The source selection processor is configured to determine said source selection control signal in dependence of a comparison of said beamformed signal and said external electric sound signals or processed versions thereof. A hearing device, and a method of operating a hearing system is further disclosed. The invention may e.g. be used in hearing aids, headsets, active ear protection devices, headphones, etc.

公开(公告)号：US20190297435A1

公开(公告)日：2019-09-26

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

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：US20190208334A1

公开(公告)日：2019-07-04

申请号：US16235451

申请日：2018-12-28

Applicant: Oticon A/S

Inventor： Svend Oscar PETERSEN ,  Michael Syskind PEDERSEN ,  Anders THULE

IPC: H04R25/00

Abstract: A hearing device, e.g. a hearing aid, comprises a) an input unit comprising a1) at least one first input transducer for picking up said sound user and providing respective at least one first electric input signals, and a2) a second input transducer for picking up said sound and providing a second electric input signal, the second input transducer being located at or in an ear canal of the user; b) an output unit comprising an output transducer for converting a processed electric signal representing said sound to a stimulus perceivable by said user as sound; c) a near-field beamformer applied to said multitude of electric input signals and implementing a feedback suppression system for suppressing feedback from said output unit to said at least one first input transducer, and comprising an adaptation unit for modifying the second electric input signal in approximation of an acoustic transfer function, or an impulse response, from the second input transducer to the at least one first input transducer and providing a modified second electric input signal representative of an estimate of said feedback. This has the advantage of allowing an increased gain to be applied to the input sound signal without a risk of feedback. A method of operating a hearing device is furthermore provided.

公开(公告)号：US20190110135A1

公开(公告)日：2019-04-11

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

CPC classification number: H04R25/505 ,  H04R25/407 ,  H04R2225/43

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：US20180262849A1

公开(公告)日：2018-09-13

申请号：US15915734

申请日：2018-03-08

Applicant: Oticon A/S

Inventor： Mojtaba FARMANI ,  Michael Syskind PEDERSEN ,  Jesper JENSEN

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

CPC classification number: H04R25/552 ,  H04R1/1083 ,  H04R3/005 ,  H04R25/407 ,  H04R25/43 ,  H04R25/554 ,  H04R2225/43 ,  H04R2430/23 ,  H04S7/302 ,  H04S2420/01

Abstract: A hearing system comprising a) a multitude M of microphones, M≥2, adapted for picking up sound from the environment and to provide corresponding electric input signals rm(n), m=1, . . . , M, n representing time, rm(n) comprising a mixture of a target sound signal propagated via an acoustic propagation channel and possible additive noise signals vm(n); b) a transceiver configured to receive a wirelessly transmitted version of the target sound signal and providing an essentially noise-free target signal s(n); c) a signal processor configured to estimate a direction-of-arrival of the target sound signal relative to the user based on c1) a signal model for a received sound signal rm at microphone m through the acoustic propagation channel, wherein the mth acoustic propagation channel subjects the essentially noise-free target signal s(n) to an attenuation αm and a delay Dm; c2) a maximum likelihood methodology; and c3) relative transfer functions dm representing direction-dependent filtering effects of the head and torso of the user in the form of direction-dependent acoustic transfer functions from each of M−1 of said M microphones (m=1, . . . , M, m≠j) to a reference microphone (m=j) among said M microphones, wherein it is assumed that the attenuation αm is frequency independent whereas the delay Dm may be frequency dependent. The application further relates to a method. Embodiments of the disclosure may e.g. be useful in applications such as binaural hearing systems, e.g. binaural hearing aids systems.

公开(公告)号：US20180176700A1

公开(公告)日：2018-06-21

申请号：US15897865

申请日：2018-02-15

Applicant: Oticon A/S

Inventor： Michael Syskind PEDERSEN ,  Jesper JENSEN ,  Peter S. K. HANSEN ,  Bjarne KIELSHOLM-RIBALAYGUA ,  Kåre Tais CHRISTENSEN ,  Jens TROELSEN ,  Hans Christian SCHOTT ,  Rune SØ

IPC: H04R25/00

CPC classification number: H04R25/552 ,  H04R2205/041 ,  H04R2225/51 ,  H04R2225/55 ,  H04R2460/03

Abstract: A binaural aid assistance system comprises first and second hearing assistance devices adapted for being located at or in left and right ears of a user. Each of the first and second hearing assistance devices comprises a) a first wireless interface comprising first antenna and transceiver circuitry adapted for establishing a first communication link to the respective other hearing assistance device based on near-field communication; b) a second wireless interface comprising second antenna and transceiver circuitry adapted for establishing a second communication link to an auxiliary device based on far-field communication. The binaural hearing aid system further comprises c) a user interface from which a user can select a suitable routing of an audio signal from the auxiliary device to each of the first and second hearing assistance devices.

公开(公告)号：US20180090158A1

公开(公告)日：2018-03-29

申请号：US15714260

申请日：2017-09-25

Applicant: Oticon A/S

Inventor： Jesper JENSEN ,  Michael Syskind PEDERSEN

IPC: G10L25/84 ,  G10L25/21 ,  G10L25/90 ,  H04R25/00

Abstract: A voice activity detection unit is configured to receive at least two electric input signals in a number of frequency bands and a number of time instances, k and m being frequency band and time indices, respectively, (k, m) defining a specific time-frequency tile of said electric input signal. The voice activity detection unit is configured to provide a resulting voice activity detection estimate comprising one or more parameters indicative of whether or not a given time-frequency tile contains or to what extent it comprises a target speech signal. The voice activity detection unit comprises a) a first detector for analyzing the time-frequency representation of the electric input signals and identifying spectro-spatial characteristics of said electric input signals, and b) and is configured for providing said resulting voice activity detection estimate in dependence of said spectro-spatial characteristics. The invention may be used in hearing aids, table microphones, speakerphones, etc.

公开(公告)号：US20180041849A1

公开(公告)日：2018-02-08

申请号：US15669020

申请日：2017-08-04

Applicant: Oticon A/S

Inventor： Mojtaba FARMANI ,  Michael Syskind PEDERSEN ,  Jesper JENSEN

IPC: H04R25/00

CPC classification number: H04R25/552 ,  G10L21/0216 ,  H04R25/405 ,  H04R25/407 ,  H04R25/505 ,  H04R25/554 ,  H04S2420/01

Abstract: A hearing aid system comprising a pair of hearing devices, e.g. hearing aids, worn at the ears of a user receives a target signal generated by a target signal source and transmitted through an acoustic channel to microphones of the hearing aid system. Due to (potential) additive environmental noise, a noisy acoustic signal is received at the microphones of the hearing system. An essentially noise-free version of the target signal is simultaneously transmitted to the hearing devices of the hearing system via a wireless connection. Based on a sound propagation model of the acoustic propagation channel from the target sound source to the microphones of the hearing aid system, and on relative transfer functions representing direction-dependent filtering effects of the head and torso of the user in the form of direction-dependent acoustic transfer functions from a microphone on one side of the head, to a microphone on the other side of the head, a direction-of-arrival (DoA) of the target sound signal relative to the user is determined using a maximum likelihood approach.

公开(公告)号：US20170345439A1

公开(公告)日：2017-11-30

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 ,  H04M1/60 ,  A61F11/06 ,  H04B1/3827 ,  H04R25/00 ,  H04R1/10

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：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).