公开(公告)号：US20220312127A1

公开(公告)日：2022-09-29

申请号：US17704355

申请日：2022-03-25

Applicant: Oticon A/S

Inventor： Sudershan Yalgalwadi SREEPADARAO ,  Anders MENG ,  Mojtaba FARMANI ,  Martin KURIGER ,  Mikkel GRØNBECH ,  Meng GUO

IPC: H04R25/00

Abstract: A hearing aid includes an input unit, an output unit, a signal processing unit connected to said input unit and output unit, where the input unit, the signal processing unit and the output unit are forming part of a forward path of the hearing aid, where the signal processing unit is configured to apply a forward gain to the at least one electric input signal or a signal originating therefrom. The hearing aid further includes a feedback control unit configured to reduce a risk of howl due to acoustic, electrical, and/or mechanical feedback of an external feedback path from the output unit to the input unit of said hearing aid, where the hearing aid is configured to receive motion data characterising movement and/or acceleration and/or orientation and/or position of the hearing aid to control processing.

公开(公告)号：US20190253817A1

公开(公告)日：2019-08-15

申请号：US16270784

申请日：2019-02-08

Applicant: Oticon A/S

Inventor： Susanna Løve CALLAWAY ,  Nicolas LE GOFF ,  Terri IVES ,  Nimrod BOGDANOVSKI ,  Mikkel Bo RASMUSSEN ,  Anders MENG ,  Martin KURIGER ,  Meng GUO ,  Mikkel GRØNBECH ,  Mojtaba FARMANI ,  Nels Hede ROHDE ,  Stefan GRAM ,  Sudershan Yalgalwadi SREEPADARAO ,  Bernhard KUENZLE

IPC: H04R25/00

CPC classification number: H04R25/70 ,  H04R25/453 ,  H04R2225/55

Abstract: A method of conducting a fitting session for fitting a hearing device to a hearing device user's needs is provided. The method comprises S1. providing an estimate of, a current feedback from said output transducer to said input transducer, while the hearing device is in an operational state; S2. evaluating said estimate of a current feedback and providing a value of a feedback risk indicator in dependence of said estimate of a current feedback; S3. determining whether said value of the feedback risk indicator fulfils a high-risk criterion; and S4. if said high-risk criterion is fulfilled providing at least one of a warning, a recommendation, and an action in relation to said feedback risk. Steps S1 to S4 are configured to be automatically performed as background processes.Thereby a simplified scheme for fitting a hearing device to a user's needs may be provided.

公开(公告)号：US20240323614A1

公开(公告)日：2024-09-26

申请号：US18734261

申请日：2024-06-05

Applicant: Oticon A/S

Inventor： Sudershan Yalgalwadi SREEPADARAO ,  Anders MENG ,  Mojtaba FARMANI ,  Martin KURIGER ,  Mikkel GRØNBECH ,  Meng GUO

IPC: H04R25/00

CPC classification number: H04R25/43 ,  H04R25/507 ,  H04R25/554

Abstract: A hearing aid includes an input unit, an output unit, a signal processing unit connected to said input unit and output unit, where the input unit, the signal processing unit and the output unit are forming part of a forward path of the hearing aid, where the signal processing unit is configured to apply a forward gain to the at least one electric input signal or a signal originating therefrom. The hearing aid further includes a feedback control unit configured to reduce a risk of howl due to acoustic, electrical, and/or mechanical feedback of an external feedback path from the output unit to the input unit of said hearing aid, where the hearing aid is configured to receive motion data characterising movement and/or acceleration and/or orientation and/or position of the hearing aid to control processing.

公开(公告)号：US20230074554A1

公开(公告)日：2023-03-09

申请号：US17903696

申请日：2022-09-06

Applicant: Oticon A/S

Inventor： Sudershan Yalgalwadi SREEPADARAO ,  Anders MENG ,  Meng GUO ,  Mojtaba FARMANI ,  Martin KURIGER ,  Mikkel GRØNBECH ,  Nels Hede ROHDE ,  Thomas JENSEN

IPC: H04R25/00

Abstract: A hearing aid configured to be worn by a user, the hearing aid comprising a user interface allowing the user to control functionality of the hearing aid, and a feedback sensor for repeatedly providing a feedback signal indicative of a current estimate of feedback from an output transducer to an input transducer of the hearing aid, wherein the user interface is based on changes to the current estimate of the feedback path, e.g. provided by the user. A method of operating a hearing aid is further disclosed. Thereby an alternative user interface for a hearing aid may be provided. The invention may e.g. be used in hearing aids or headsets, or a combination thereof.

公开(公告)号：US20220312129A1

公开(公告)日：2022-09-29

申请号：US17704828

申请日：2022-03-25

Applicant: Oticon A/S

Inventor： Meng GUO ,  Bernhard KUENZLE ,  Anders MENG ,  Martin KURIGER ,  Mojtaba FARMANI ,  Mikkel GRØNBECH ,  Sudershan Yalgalwadi SREEPADARAO ,  Kim Tilgaard PETERSEN

IPC: H04R25/00

Abstract: A hearing aid includes an input unit, an output unit, a signal processing unit connected to the input unit and output unit, where the input unit, the signal processing unit and the output unit form part of a forward path of the hearing aid, where the signal processing unit is configured to apply a forward gain to the at least one electric input signal or a signal originating therefrom. The hearing aid further includes a feedback reduction unit configured to reduce risk of howl due to acoustic, electrical, and/or mechanical feedback of an external feedback path from the output unit to the input unit. The feedback reduction unit is configured to modulate the forward gain in time to provide that the forward gain exhibits an increased or unchanged forward gain in one or more first time periods and a reduced forward gain in one or more second time periods.

公开(公告)号：US20220264232A1

公开(公告)日：2022-08-18

申请号：US17674041

申请日：2022-02-17

Applicant: Oticon A/S

Inventor： Meng GUO ,  Anders MENG ,  Martin KURIGER ,  Mojtaba FARMANI ,  Mikkel GRØNBECH ,  Sudershan Y.S

IPC: H04R25/00

Abstract: A hearing aid comprises a forward path comprising an input transducer an electric input signals representing a sound comprising target signal components and background noise, a hearing aid processor for providing a processed signal in dependence of said at least one electric input signal and for providing a processed output signal in dependence thereof, and an output transducer for providing stimuli perceivable as sound to the user in dependence of said processed signal. The forward path provides a frequency dependent intended forward path transfer function. The hearing aid further comprises a feedback path estimator configured to provide a current frequency dependent estimate of a feedback path transfer function of a feedback path from the output transducer to the input transducer, and a current feedback path estimate in dependence of the current estimate of the feedback path transfer function and of the processed signal, and a combination unit in the forward path configured to subtract the current feedback path estimate from a signal of the forward path to provide a feedback corrected signal. The hearing aid may further comprise a noise estimator configured to provide a current frequency dependent noise estimate representing a background noise level in the at least one electric input signal, an open loop transfer function estimator configured to provide a frequency dependent estimate of a current open loop transfer function in dependence of the intended forward path transfer function and the current estimate of the feedback transfer function, and a confidence level estimator configured to provide a current frequency dependent estimate of a confidence level of the current estimate of the feedback transfer function in dependence of a current estimate of open loop gain and optionally the current noise estimate. The hearing aid may be configured to control processing in the hearing aid in a frequency band k in dependence of said current estimate of the open loop transfer function and/or the current estimate of the feedback path transfer function, if the current estimate of the confidence level fulfils a confidence criterion in said frequency band k. A method of operating a hearing aid is further disclosed. The invention may e.g. be used to assess a risk of acoustic feedback in a hearing aid.