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    Method of processing an audio signal in a hearing device
    1.
    发明申请
    Method of processing an audio signal in a hearing device 有权

    公开(公告)号：US20250030993A1

    公开(公告)日：2025-01-23

    申请号：US18765908

    申请日：2024-07-08

    Applicant: SONOVA AG

    Inventor： Markus Hofbauer ,  Sebastian Stenzel ,  Raoul Glatt ,  Leonard Cornelisse

    IPC: H04R25/00

    Abstract: The disclosure relates to a method of operating a hearing device configured be worn at an ear of a user, the method comprising receiving an audio signal; processing the audio signal by at least one audio processing algorithm to generate a processed audio signal; and outputting, by an output transducer included in the hearing device, an output audio signal based on the processed audio signal so as to stimulate the user's hearing. The disclosure further relates to a hearing device configured to perform the method.

    Method of managing adaptive feedback cancellation in hearing devices and hearing devices configured to carry out such method
    2.
    发明授权
    Method of managing adaptive feedback cancellation in hearing devices and hearing devices configured to carry out such method 有权

    公开(公告)号：US10811028B2

    公开(公告)日：2020-10-20

    申请号：US16326936

    申请日：2016-08-22

    Applicant: Sonova AG

    Inventor： Samuel Bucher ,  Xavier Gigandet ,  Jean-Louis Durrieu ,  Hannes Wuethrich ,  Markus Hofbauer

    IPC: G10L21/0232 ,  H04R25/00 ,  G10L21/0264 ,  H04R3/04 ,  G10L21/0216

    Abstract: This invention relates to a method of managing adaptive feedback cancellation in a hearing device comprising at least a microphone (1); a receiver (2); and a signal processing circuitry, configured to receive from said microphone (1) an input signal (Xtd, Xfd, Xc) and to provide said receiver (2) with an output signal (Yfd, Ufd, Utd). An external acoustic feedback path (300) defined by feedback sound (fb) traveling from the receiver (2) to the microphone (1) is represented by an external feedback path transfer function (3). The signal processing unit comprises at least a gain unit (4); a feedback canceller unit (5) comprising an adaptive filter element (6) configured to adaptively accommodate changes in said external acoustic feedback path transfer function (3); and a frequency shift unit (7) configured to stabilize an adaptation of the feedback canceler unit (5). The method according to the present invention comprises the steps of: estimating the external acoustic feedback path transfer function (3) by modeling/deriving a first estimated feedback path transfer function (8) to reflect the external acoustic feedback path transfer function (3), by said feedback canceler unit (5); compensating the input signal of the hearing device (Xfd), based on the first estimated feedback path transfer function (8), thereby generating a compensated input signal (Xc); providing at least part of the signal processing unit with the compensated input signal (Xc). The method further comprises the steps of: generating a probe signal (W), by an adaptation control block (9, 10); injecting the probe signal (W) into the output signal (Yfd) of the hearing device and letting the probe signal (W) be fed back to the microphone (1) through the external acoustic feedback path (300); modeling/deriving at least a reference estimated feedback path transfer function (11), based on a relation between the input signal (Xfd) and the probe signal (w); comparing said at least a reference estimated feedback path transfer function (11) with said first estimated feedback path transfer function (8), by a comparison unit (12) of said adaptation control block (9); and controlling the adaptive filter element (6) and the frequency shift unit (7) based on a comparison between such at least a reference estimated feedback path transfer function (11) and the first estimated feedback path transfer function (8).

    A Method of Managing Adaptive Feedback Cancellation in Hearing Devices and Hearing Devices Configured to Carry out Such Method
    4.
    发明申请
    A Method of Managing Adaptive Feedback Cancellation in Hearing Devices and Hearing Devices Configured to Carry out Such Method 审中-公开

    公开(公告)号：US20190198037A1

    公开(公告)日：2019-06-27

    申请号：US16326936

    申请日：2016-08-22

    Applicant: Sonova AG

    Inventor： Samuel Bucher ,  Xavier Gigandet ,  Jean-Louis Durrieu ,  Hannes Wuethrich ,  Markus Hofbauer

    IPC: G10L21/0232 ,  H04R3/04 ,  G10L21/0264

    CPC classification number: G10L21/0232 ,  G10L21/0264 ,  G10L2021/02163 ,  H04R3/04 ,  H04R25/30 ,  H04R25/353 ,  H04R25/453 ,  H04R25/554 ,  H04R2225/41 ,  H04R2430/03

    Abstract: This invention relates to a method of managing adaptive feedback cancellation in a hearing device comprising at least a microphone (1); a receiver (2); and a signal processing circuitry, configured to receive from said microphone (1) an input signal (Xtd, Xfd, Xc) and to provide said receiver (2) with an output signal (Yfd, Ufd, Utd). An external acoustic feedback path (300) defined by feedback sound (fb) traveling from the receiver (2) to the microphone (1) is represented by an external feedback path transfer function (3). The signal processing unit comprises at least a gain unit (4); a feedback canceller unit (5) comprising an adaptive filter element (6) configured to adaptively accommodate changes in said external acoustic feedback path transfer function (3); and a frequency shift unit (7) configured to stabilize an adaptation of the feedback canceler unit (5). The method according to the present invention comprises the steps of: estimating the external acoustic feedback path transfer function (3) by modeling/deriving a first estimated feedback path transfer function (8) to reflect the external acoustic feedback path transfer function (3), by said feedback canceler unit (5); compensating the input signal of the hearing device (Xfd), based on the first estimated feedback path transfer function (8), thereby generating a compensated input signal (Xc); providing at least part of the signal processing unit with the compensated input signal (Xc). The method further comprises the steps of: generating a probe signal (W), by an adaptation control block (9, 10); injecting the probe signal (W) into the output signal (Yfd) of the hearing device and letting the probe signal (W) be fed back to the microphone (1) through the external acoustic feedback path (300); modeling/deriving at least a reference estimated feedback path transfer function (11), based on a relation between the input signal (Xfd) and the probe signal (w); comparing said at least a reference estimated feedback path transfer function (11) with said first estimated feedback path transfer function (8), by a comparison unit (12) of said adaptation control block (9); and controlling the adaptive filter element (6) and the frequency shift unit (7) based on a comparison between such at least a reference estimated feedback path transfer function (11) and the first estimated feedback path transfer function (8).

    Systems and methods for selecting a sound processing delay scheme for a hearing device
    5.
    发明授权
    Systems and methods for selecting a sound processing delay scheme for a hearing device 有权

    公开(公告)号：US12160709B2

    公开(公告)日：2024-12-03

    申请号：US17893591

    申请日：2022-08-23

    Applicant: SONOVA AG

    Inventor： Ralph Peter Derleth ,  Eleftheria Georganti ,  Markus Hofbauer ,  Gilles Courtois ,  Erwin Kuipers ,  Antonio Hoelzl

    IPC: H04R25/00

    Abstract: An exemplary system includes a memory storing instructions and one or more processors communicatively coupled to the memory and configured to execute the instructions to perform a process comprising: accessing fitting data representative of fitting parameters set by a fitting application to fit a hearing device to a user; determining user behavior data indicative of a hearing intention of the user in an auditory scene where the user is located; determining auditory scene data representative of information about the auditory scene; and implementing, based on the fitting data, the user behavior data, and the auditory scene data, a sound processing delay scheme for use by the hearing device.

    Method for audio signal processing on a hearing system, hearing system and neural network for audio signal processing
    9.
    发明公开
    Method for audio signal processing on a hearing system, hearing system and neural network for audio signal processing 审中-公开

    公开(公告)号：US20230209283A1

    公开(公告)日：2023-06-29

    申请号：US18089093

    申请日：2022-12-27

    Applicant: SONOVA AG

    Inventor： Paul Wagner ,  Sebastian Kroedel ,  Claudio Santelli ,  Markus Hofbauer ,  Manon Barbier

    IPC: H04R25/00

    CPC classification number: H04R25/507 ,  H04R25/606

    Abstract: Methods, hearing systems and neural networks for audio signal processing are described. A hearing system comprises a neural network. An input audio signal is processed into an output audio signal at least partially by means of a processing unit of the hearing system. The audio signal processing of the input audio signal includes executing audio signal processing by the neural network for performing a step of the audio signal processing, determining a confidence parameter resembling the reliability of the audio signal processing by the neural network and steering the audio signal processing in dependence of the confidence parameter. A particularly suitable neural network is configured to solve a regression-based acoustic processing task and additionally determining the confidence parameter.

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