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1.发明公开
公开(公告)号：EP3471440A1
公开(公告)日：2019-04-17
申请号：EP18199236.3
申请日：2018-10-09
申请人： Oticon A/S
IPC分类号： H04R25/00
摘要： 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 y p (Θ) in dependence thereof, the signal processor being configured to provide a resulting signal y res , c) a controller configured to control the processor to provide said resulting signal y res 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 C v and/or covariance matrix C Y 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 (y p (Θ1)) of said speech intelligibility measure I for a first processed signal y p (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 y p (Θ') exhibiting said desired value I des 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.
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公开(公告)号：EP4300992A1
公开(公告)日：2024-01-03
申请号：EP23182347.7
申请日：2023-06-29
申请人： Oticon A/S
发明人： GUO, Meng , MENG, Anders , PLEWE, Daniel , LAURIDSEN, Jakob Sloth , ADNADJEVICA, Mirjana , FARMANI, Mojtaba , ROHDE, Nels Hede , ZAHEDI, Adel
摘要： A hearing aid comprises a forward path comprising a) an input transducer for converting sound (x(n), v(n)) in an environment around the hearing aid to an electric input signal (y(n)) representing said sound; b) a hearing aid processor for processing said electric input signal (y(n)), or a signal originating therefrom (e(n)), and to provide a processed signal (u(n)) based thereon; c) an output transducer for converting said processed signal (u(n)), or a signal originating therefrom (u a (n)), to acoustic stimuli presented to said eardrum of the user. The hearing aid further comprises d) a feedback control system for attenuating or cancelling feedback propagated via a feedback path (H) from an electric input signal to said output transducer to an electric output from said input transducer, the feedback control system comprising d1) a first adaptive filter configured to provide an estimate (v') of said feedback, the first adaptive filter comprising d1.1) a variable filter comprising configurable filter coefficients, for providing a current estimate (v'(n)) of said feedback in dependence of a current variable filter input signal; and d1.2) an adaptive algorithm for providing updated filter coefficients to said variable filter in dependence of first and second algorithm input signals. The first and second algorithm input signals are the feedback corrected input signal (e(n)) and the processed signal (u(n)), respectively. The feedback control system further comprises d2) a first combination unit located in the forward path for combining said current estimate (v'(n)) of feedback with a signal of the forward path and providing a feedback-corrected input signal (e(n)). The current variable filter input signal is a signal comprising said processed signal (u(n)) compensated by the cancellation signal a(n) filtered by the feedback path (H) or its estimate (H'); and said current filter input signal is said electric input signal (y(n)), or a signal originating therefrom (e(n)). A method of operating a hearing aid is further disclosed. The invention may e.g. be used in hearing aids or headsets.
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公开(公告)号：EP4040806A3
公开(公告)日：2022-12-21
申请号：EP22150697.5
申请日：2022-01-10
申请人： Oticon A/S
发明人： ZAHEDI, Adel , PEDERSEN, Michael Syskind , CHRISTIANSEN, Thomas Ulrich , BRAMSLØW, Lars , JENSEN, Jesper
IPC分类号： H04R25/00 , G10L25/60 , G10L21/0208 , G10L25/69
摘要： A hearing device adapted for being worn at or in an ear of a user, comprises a) an input unit comprising at last two input transducers each for converting sound around said hearing device to an electric input signal representing said sound, thereby providing at least two electric input signals; b) a beamformer filter comprising a minimum processing beamformer defined by optimized beamformer weights, the beamformer filter being configured to provide a filtered signal in dependence of said at least two electric input signals and said optimized beamformer weights; c) a reference signal representing sound around said hearing device; d) a performance criterion for said minimum processing beamformer. The minimum processing beamformer is a beamformer that provides the filtered signal with as little modification as possible in terms of a selected distance measure compared to said reference signal, while still fulfilling said performance criterion. The optimized beamformer weights are adaptively determined in dependence of said at least two electric input signals, said reference signal, said distance measure, and said performance criterion. A method of operating a hearing device is further disclosed. The invention may e.g. be used in hearing aids or headsets.
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公开(公告)号：EP4432704A1
公开(公告)日：2024-09-18
申请号：EP24161454.4
申请日：2024-03-05
申请人： Oticon A/S
IPC分类号： H04R25/00
CPC分类号： H04R25/70 , H04R25/652 , H04R25/505 , H04R25/356 , H04R2225/021620190501 , H04R2225/02320130101 , H04R2225/02520130101 , H04R2430/0320130101
摘要： A method at hearing aid and a hearing aid including a processor, a first microphone, a second microphone; wherein the first microphone is arranged to capture ear-canal sounds, and wherein the second microphone is arranged to capture ambient sounds; comprising: an acoustical model (511) configured to generate first values (hk) for the multiple frequency channels based on first parameters (G, A, l); and a statistical model (512) configured to generate second values (rk) for the multiple frequency channels based on values of second parameters (s1, s2, ··· , sn) and a set of basis vectors (u1, u2, ··· , un). An optimizer (509) is configured to obtain an optimized set of parameter values ({G, A, l, s1, s2, ··· , sn}*) including values of the first parameters and values of the second parameters; wherein the optimized set of parameter values is obtained by minimizing a difference between the first sound pressure levels (robs) and a combination of the first values (rk) and the second values (hk). An advantage is that sound pressure levels at the eardrum of the wearer of hearing aid can be accurately determined using a hearing aid with a microphone arranged to capture ear-canal sounds only at a distance from the ear drum.
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公开(公告)号：EP4040806A2
公开(公告)日：2022-08-10
申请号：EP22150697.5
申请日：2022-01-10
申请人： Oticon A/S
发明人： ZAHEDI, Adel , PEDERSEN, Michael Syskind , CHRISTIANSEN, Thomas Ulrich , BRAMSLØW, Lars , JENSEN, Jesper
摘要： A hearing device adapted for being worn at or in an ear of a user, comprises a) an input unit comprising at last two input transducers each for converting sound around said hearing device to an electric input signal representing said sound, thereby providing at least two electric input signals; b) a beamformer filter comprising a minimum processing beamformer defined by optimized beamformer weights, the beamformer filter being configured to provide a filtered signal in dependence of said at least two electric input signals and said optimized beamformer weights; c) a reference signal representing sound around said hearing device; d) a performance criterion for said minimum processing beamformer. The minimum processing beamformer is a beamformer that provides the filtered signal with as little modification as possible in terms of a selected distance measure compared to said reference signal, while still fulfilling said performance criterion. The optimized beamformer weights are adaptively determined in dependence of said at least two electric input signals, said reference signal, said distance measure, and said performance criterion. A method of operating a hearing device is further disclosed. The invention may e.g. be used in hearing aids or headsets.
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