-
公开(公告)号：US20220174428A1
公开(公告)日：2022-06-02
申请号：US17522275
申请日：2021-11-09
申请人： Oticon A/S
摘要： A hearing aid system comprises a hearing aid configured to be worn on the head at or in an ear of a user. The hearing aid comprises a microphone system comprising a multitude of M of microphones arranged in said hearing aid and adapted to provide M corresponding electric input signals xm(n), m=1, . . . , M, n representing time. The environment sound at a given microphone comprises a mixture of a) a target sound signal sm(n) propagated via an acoustic propagation channel from a direction to or a location (θ) of a target sound source to the mth microphone of the hearing aid when worn by the user, and b) possible additive noise signals vm(n) as present at the location of the mth microphone, wherein the acoustic propagation channel is modeled as xm(n)=sm(n)hm(θ)+vm(n), and wherein hm(θ) is an acoustic impulse response for sound for that acoustic propagation channel. The hearing aid system comprises A) a processor connected to said number of microphones, and B) a database Θ comprising a multitude of dictionaries Δp, p=1, . . . , P, where p is a person index, of vectors, termed ATF-vectors, whose elements ATFm, m=1, . . . , M, are frequency dependent acoustic transfer functions representing direction- or location-dependent (θ), and frequency dependent (k) propagation of sound from a direction or location (θ) of a target sound source to each of said M microphones, k being a frequency index, k=1, . . . , K, where K is a number of frequency bands, when said microphone system is mounted on a head at or in an ear of a natural or artificial person (p′), and wherein each of said dictionaries Δp comprises ATF-vectors for a given person (p) for a multitude of different directions or locations θj, j=1, . . . , J, relative to the microphone system. The processor is configured to, at least in a learning mode of operation, determine personalized ATF-vectors (ATF*) for said user based on said multitude of dictionaries Δp of said database Θ, said electric input signals xm(n), m=1, . . . , M, and said model of the acoustic propagation channels. The invention may e.g. be used in beamforming, own voice estimation, own voice detection, keyword detection, etc.
-
公开(公告)号：US20200221236A1
公开(公告)日：2020-07-09
申请号：US16737624
申请日：2020-01-08
申请人： Oticon A/S
发明人： Jesper JENSEN , Peter SOMMER , Svend Oscar PETERSEN , Karsten Bo RASMUSSEN , Jan M. DE HAAN , Michael Syskind PEDERSEN
IPC分类号： H04R25/00
摘要： 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：US20220295191A1
公开(公告)日：2022-09-15
申请号：US17691898
申请日：2022-03-10
申请人： Oticon A/S
IPC分类号： H04R25/00 , G10L21/0216
摘要： A hearing aid includes an input providing an input signal representing sound in an environment, the input signal including no speech signal, or one or more speech signals from one or more speech sound sources and additional signal components, termed noise signal, from one or more other sound sources, an own voice detector, a voice activity detector, and a talker extraction unit to determine and/or receive one or more speech signals as separated one or more speech signals from speech sound sources other than the hearing aid user and to detect the speech signal originating from the voice of the user. The talker extraction unit provides separate signals, each including, or indicating presence of, one of the one or more speech signals. A noise reduction system determines speech overlap and/or gap between the speech signal originating from the user's voice and each of the separated one or more speech signals.
-
公开(公告)号：US20220272462A1
公开(公告)日：2022-08-25
申请号：US17742132
申请日：2022-05-11
申请人： Oticon A/S
发明人： Michael Syskind PEDERSEN , Jan M. DE HAAN , Nels Hede ROHDE , Angela JOSUPEIT , Sigurdur SIGURDSSON
IPC分类号： H04R25/00
摘要： A hearing device, e.g. a hearing aid or a headset, configured to be worn at or in an ear of a user, the hearing device comprising at least one input transducer for converting a sound in an environment of the hearing device to at least one electric input signal representing said sound; an own voice detector configured to estimate whether or not, or with what probability, said sound originates from the voice of the user, and to provide an own voice control signal indicative thereof, a face mask detector configured to estimate whether or not, or with what probability, said user wears a face mask while speaking, and to provide face mask control signal indicative thereof. A method of operating a hearing device is further disclosed. Thereby an improved hearing aid or headset may be provided.
-
5.发明申请公开(公告)号：US20220124440A1
公开(公告)日：2022-04-21
申请号：US17565034
申请日：2021-12-29
申请人： Oticon A/S
IPC分类号： H04R25/00
摘要： A binaural hearing system comprises a first and second hearing aids. The hearing aids each comprises antenna and transceiver circuitry allowing the exchange of audio signals between them. At least one 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. In an embodiment, the spatially filtered signal of the secondary 2-channel beamformer may comprise an estimate of user's own voice. In an embodiment, the spatially filtered signal of the secondary 2-channel beamformer may comprise an estimate of a target signal in the environment. In an embodiment, the inputs to the secondary 2-channel beamformer may be beamformed signals from the first and second hearing aids respectively.
-
6.发明申请公开(公告)号：US20230120973A1
公开(公告)日：2023-04-20
申请号：US18084209
申请日：2022-12-19
申请人： Oticon A/S
IPC分类号： H04R25/00
摘要： 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：US20210337306A1
公开(公告)日：2021-10-28
申请号：US16855232
申请日：2020-04-22
申请人： Oticon A/S
发明人： Michael Syskind PEDERSEN , Carsten SCHEEL , Martin BERGMANN , Henrik BAY , Morten PEDERSEN , Bent KROGSGAARD , Jacob MIKKELSEN , Stefan GRAM , Jan M. DE HAAN , Andreas Thelander BERTELSEN
摘要： A sound capture device configured to be worn by a person and/or to be located on a surface is configured to pick up target sound from a target sound source s. The sound capture device comprises a) an input unit providing a multitude of electric input signals, each comprising a target signal component and a noise signal component; b) a directional noise reduction system comprising a beamformer unit coupled to said multitude of input signals and configured to provide an estimate of the target sound s. The beamformer unit comprises b1) target maintaining, reference beamformer providing a current reference signal; and b2) a target cancelling beamformer providing a current target cancelling sign. The directional noise reduction system is configured to operate in at least two modes in dependence of a mode control signal, 1) in a directional mode and 2) in a non-directional, omni-directional mode. The sound capture device further comprises c) antenna and transceiver circuitry for establishing an audio link to another device, and to transmit said estimate of the target sound s to said another device, and d) a mode controller for determining said mode control signal in dependence of said current reference signal and said current target cancelling signal. A method of operating a sound capture device is further disclosed.
-
公开(公告)号：US20210297789A1
公开(公告)日：2021-09-23
申请号：US16826017
申请日：2020-03-20
申请人： Oticon A/S
发明人： Jan M. DE HAAN , Mirjana ADNADJEVIC , Svend FELDT
摘要： A hearing device adapted to be worn by a user and for picking up sound containing the user's own voice is provided. The hearing device comprises a) an input unit comprising first and second input transducers for converting sound to first and second electric input signals, respectively, representing said sound; b) a processor configured to receive said first and second electric input signals and to provide a combined signal as a linear combination of the first and second electric input signals, wherein the combined signal comprises an estimate of the user's own voice, and c) wherein said hearing device is configured to provide that said first and second input transducers are located on said user at first and second locations, when worn by said user; and d) wherein said first and second locations are selected to provide that said first and second electric signals exhibit substantially different directional responses for sound from the user's mouth as well as from sound from sound sources located in an environment around the user. A method of operating a hearing device is further disclosed. Thereby an improved quality of an own voice estimate may be provided.
-
公开(公告)号：US20230054213A1
公开(公告)日：2023-02-23
申请号：US17890647
申请日：2022-08-18
申请人： Oticon A/S
发明人： Jan M. DE HAAN , Jesper JENSEN , Michael Syskind PEDERSEN , Svend FELDT , Stig PETRI , Jakob Sloth LAURIDSEN
摘要： A hearing system comprises a) a multitude of M of microphones providing M corresponding electric input signals xm(n), m=1, ..., M, and n representing time, b) a processor connected to said multitude of microphones and providing a processed signal in dependence thereof, c) an output unit for providing an output signal in dependence of said processed signal, and d) a database (Θ) comprising a dictionary (Δpd) of previously determined acoustic transfer function vectors (ATFpd). The processor is configured A) to determine a constrained estimate of a acoustic transfer function vector (ATFpd,cur) in dependence of said M electric input signals and said dictionary (Δpd), B) to determine an unconstrained estimate of a current acoustic transfer function vector (ATFuc,cur) in dependence of said M electric input signals, and C) to determine a resulting acoustic transfer function vector (ATF*) for a user of the hearing system in dependence thereof and of a confidence measure related to said electric input signals. A method of operating a hearing device is also disclosed. Thereby an improved noise reduction system for a hearing aid or headset may be provided.
-
公开(公告)号：US20220406328A1
公开(公告)日：2022-12-22
申请号：US17841002
申请日：2022-06-15
申请人： Oticon A/S
IPC分类号： G10L25/30 , H04R25/00 , G10L19/26 , G10L21/057
摘要： A hearing device comprises a) at least one input transducer configured to pick up sound from an acoustic environment around the user when the user is wearing the hearing device, the at least one input transducer providing at least one electric input signal representative of said sound, b) at least one analysis filter bank configured to provide said at least one electric input signal as a multitude of frequency sub-band signals, the at least one analysis filter bank comprising b1) a plurality of M first filters hm(n), whose impulse responses are modulated from a first prototype filter h(n), where m=0, 1, . . . , M−1 is a frequency band index, and n is a time index, c) a processor for processing said at least one electric input signal provided by said at least one analysis filter bank, or a signal originating therefrom, and providing a processed signal, d) an output transducer configured to provide stimuli perceivable as sound to the user in dependence of said processed signal, and e) a controller for controlling said analysis filter bank by applying a different first prototype filter to said at least one filter bank in dependence of said current acoustic environment. A method of operating a hearing device is further disclosed.
-
-
-
-
-
-
-
-
-
搜索结果
20 条记录 (耗时 0.017 秒)
