公开(公告)号：US20170004841A1

公开(公告)日：2017-01-05

申请号：US15198084

申请日：2016-06-30

Applicant: Oticon A/S

Inventor： Jesper JENSEN

IPC: G10L21/0232 ,  G10L21/0308 ,  G10L21/0364 ,  G10L25/84

CPC classification number: G10L21/0232 ,  G10L15/20 ,  G10L21/0208 ,  G10L21/0308 ,  G10L21/0364 ,  G10L25/84

Abstract: A system for enhancement of noisy speech comprises an input unit is configured to subdivide the spectrum of the input signal into a plurality of frequency sub-bands and to provide time-frequency coefficients X(k,m) for a sequence [X(k, m′−D+1) . . . X(k,m′)] of observable noisy signal samples for each of said frequency sub-bands, where k and m are frequency and time indices, respectively, and D is larger than 1. The system further comprises enhancement processing unit configured to receive X(k,m) and to provide enhanced time-frequency coefficients Ŝ(k, m), a storage for statistical model(s) of speech and for statistical model(s) of noise, and an optimizing unit configured to provide said enhanced time-frequency coefficients Ŝ(k,m) using said statistical model of speech and said statistical model of noise, while considering said sequence [X(k, m′−D+1) . . . X(k, m′)] of observable noisy signal samples. Thereby the enhancement processing unit is able to determine the enhanced time-frequency coefficients based on the time-frequency coefficients for each of said frequency sub-bands.

Abstract translation: 一种用于增强噪声语音的系统，包括输入单元，用于将输入信号的频谱细分为多个频率子带，并为序列[X（k， m'-D + 1）。 。 。 X（k，m'）]，其中k和m分别是频率和时间指数，D大于1.系统还包括增强处理单元，被配置为 接收X（k，m）并且提供增强的时频系数Ŝ（k，m），用于统计模型的语音和噪声的统计模型的存储器，以及优化单元，被配置为提供所述 在考虑所述序列[X（k，m'-D + 1）的情况下，使用所述语音统计模型和所述噪声统计模型来增强时频系数Ŝ（k，m）。 。 。 X（k，m'）]。 因此，增强处理单元能够基于每个所述频率子带的时间 - 频率系数来确定增强的时间 - 频率系数。

公开(公告)号：US20160241974A1

公开(公告)日：2016-08-18

申请号：US15042248

申请日：2016-02-12

Applicant: Oticon A/S

Inventor： Jesper JENSEN ,  Michael Syskind PEDERSEN

IPC: H04R25/00

CPC classification number: H04R25/554 ,  H04R3/005 ,  H04R25/407 ,  H04R25/505 ,  H04R2201/40 ,  H04R2225/51 ,  H04R2225/55 ,  H04R2420/07 ,  H04R2430/23 ,  H04R2460/01

Abstract: The application relates to a hearing system comprising a hearing device and a separate microphone unit adapted for picking up a voice of a user. The microphone unit comprises a) a multitude M of input units for picking up or receiving a signal representative of a sound from the environment, M being ≧2; b) an adaptive multi-input unit noise reduction system for providing an estimate Ŝ of a target signal s comprising the user's voice, the multi-input unit noise reduction system comprises a multi-input beamformer filtering unit configured to determine filter weights w(k,m) for providing a beamformed signal, wherein signal components from other directions than a direction of a target signal source are attenuated, whereas signal components from the direction of the target signal source are left un-attenuated; and c) antenna and transceiver circuitry for transmitting said estimate Ŝ of the user's voice to another device. The hearing system facilitates communication between a wearer of a hearing device and another person via a telephone. The invention may e.g. be used in hearing aids in connection with handsfree telephone systems, mobile telephones, teleconferencing systems, etc.

Abstract translation: 该应用涉及一种包括听力设备和适于拾取用户的语音的分离的麦克风单元的听觉系统。 麦克风单元包括：a）多个M个输入单元，用于拾取或接收代表来自环境的声音的信号，M为≥2; b）一种用于提供包括用户语音的目标信号s的估计的自适应多输入单元噪声降低系统，所述多输入单元噪声降低系统包括多输入波束形成器滤波单元，其被配置为确定滤波器权重w（k ，m），用于提供波束形成的信号，其中来自不同于目标信号源的方向的其它方向的信号分量被衰减，而来自目标信号源的方向的信号分量未被衰减; 以及c）天线和收发器电路，用于将所述用户语音的估计值发送到另一设备。 听力系统便于通过电话与听力装置的佩戴者和另一人之间的通信。 本发明可以例如 用于与免提电话系统，移动电话，电话会议系统等相关的助听器。

公开(公告)号：US20150163602A1

公开(公告)日：2015-06-11

申请号：US14561960

申请日：2014-12-05

Applicant: OTICON A/S

Inventor： Michael Syskind PEDERSEN ,  Jesper JENSEN ,  Jan Mark DE HAAN

IPC: H04R25/00

CPC classification number: H04R25/554 ,  H04R1/1083 ,  H04R25/30 ,  H04R25/305 ,  H04R25/407 ,  H04R25/43 ,  H04R25/552 ,  H04R2225/41 ,  H04R2225/55 ,  H04R2499/11

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.

Abstract translation: 本发明涉及一种助听器装置，至少一个环境声音输入，无线声音输入，输出换能器，电路，发射器单元和专用波束形成器 - 噪声降低系统。 助听器装置被配置为佩戴在使用者的耳中或耳部。 所述至少一个环境声音输入被配置为接收声音并产生表示声音的电声信号。 无线声音输入被配置为接收无线声音信号。 输出换能器被配置成刺激助听器装置用户的听觉。 发射机单元被配置为发送表示声音和/或声音的信号。 专用波束形成器降噪系统被配置为从电声信号中检索表示用户的语音的用户语音信号。 无线声音输入被配置为无线地连接到通信设备并且从通信设备接收无线声音信号。 发射机单元被配置为无线地连接到通信设备并将用户语音信号发送到通信设备。

公开(公告)号：US20140056435A1

公开(公告)日：2014-02-27

申请号：US13967055

申请日：2013-08-14

Applicant: Retune DSP ApS ,  OTICON A/S

Inventor： Ulrik KJEMS ,  Jesper JENSEN

IPC: G10L15/20

CPC classification number: G10L15/20 ,  G10L21/0232 ,  G10L2021/02166 ,  H04M9/082 ,  H04R1/1083 ,  H04R3/005 ,  H04R3/02 ,  H04R2225/43 ,  H04R2227/009

Abstract: A method comprises processing M subband communication signals and N target-cancelled signals in each subband with a set of beamformer coefficients to obtain an inverse target-cancelled covariance matrix of order N in each band; using a target absence signal to obtain an initial estimate of the noise power in a beamformer output signal averaged over recent frames with target absence in each subband; multiplying the initial noise estimate with a noise correction factor to obtain a refined estimate of the power of the beamformer output noise signal component in each subband; processing the refined estimate with the magnitude of the beamformer output to obtain a postfilter gain value in each subband; processing the beamformer output signal with the postfilter gain value to obtain a postfilter output signal in each subband; and processing the postfilter output subband signals to obtain an enhanced beamformed output signal.

Abstract translation: 一种方法包括利用一组波束形成器系数处理每个子带中的M个子带通信信号和N个目标消除信号，以获得每个频带中的N阶逆目标消除协方差矩阵; 使用目标缺失信号来获得在每个子带中目标不存在的最近帧上平均的波束形成器输出信号中的噪声功率的初始估计; 将初始噪声估计与噪声校正因子相乘以获得每个子带中波束形成器输出噪声信号分量的功率的精确估计; 用波束形成器输出的幅度处理精细估计，以获得每个子带中的后置滤波器增益值; 用后置滤波器增益值处理波束形成器输出信号以获得每个子带中的后滤波器输出信号; 以及处理后置滤波器输出子带信号以获得增强的波束形成输出信号。

公开(公告)号：US20240414483A1

公开(公告)日：2024-12-12

申请号：US18330416

申请日：2023-06-07

Applicant: Oticon A/S

Inventor： Michael Syskind PEDERSEN ,  Jesper JENSEN ,  Adam KUKLASINSKI ,  Fares EL-AZM ,  Sam NEES ,  Sigurdur SIGURDSSON ,  Silvia TARANTINO ,  Poul HOANG ,  Jan M. DE HAAN ,  Mojtaba FARMANI ,  Svend Oscar PETERSEN

IPC: H04R25/00 ,  G10L25/30 ,  G10L25/78

Abstract: A hearing aid comprises a multitude M≥2 microphones adapted for providing M electric input signals (x) representative of an environment of a user, at least one beamformer for generating at least one beamformed signal in dependence of beamformer weights (w) configured to be applied to said electric input signals, thereby providing said at least one beamformed signal (Y) as a weighted sum of the M of electric input signals. The beamformer weights (w) are adaptively optimized to a plurality of target positions (θ) by maximizing a target signal to noise ratio (SNR) for sound from the target positions (θ).

公开(公告)号：US20240089651A1

公开(公告)日：2024-03-14

申请号：US18507930

申请日：2023-11-13

Applicant: Oticon A/S

Inventor： Poul HOANG ,  Jan M. DE HAAN ,  Jesper JENSEN ,  Michael Syskind PEDERSEN

IPC: H04R1/10 ,  G10K11/178 ,  H04R25/00

CPC classification number: H04R1/1083 ,  G10K11/17837 ,  H04R1/1016 ,  H04R25/505 ,  G10K2210/1081 ,  H04R2460/01

Abstract: A hearing device adapted for being located at or in an ear of a user, or for being fully or partially implanted in the head of a user comprises a) an input unit for providing at least one electric input signal representing sound in an environment of the user, said electric input signal comprising a target speech signal from a target sound source and additional signal components, termed noise signal components, from one or more other sound sources, b) a noise reduction system for providing an estimate of said target speech signal, wherein said noise signal components are at least partially attenuated, and c) an own voice detector for repeatedly estimating whether or not, or with what probability, said at least one electric input signal, or a signal derived therefrom, comprises speech originating from the voice of the user. The noise signal components are identified during time segments wherein the own voice detector indicates that the at least one electric input signal, or a signal derived therefrom, originates from the voice of the user, or originates from the voice of the user with a probability above an own voice presence probability (OVPP) threshold value. A method of operating a hearing device is further disclosed.

公开(公告)号：US20230388721A1

公开(公告)日：2023-11-30

申请号：US18308690

申请日：2023-04-28

Applicant: Oticon A/S

Inventor： Jesper JENSEN ,  Poul HOANG ,  Simone Birk Bols THOMSEN

IPC: H04R25/00 ,  G06F3/01 ,  G06F16/68

CPC classification number: H04R25/407 ,  H04R25/505 ,  G06F3/013 ,  H04R25/405 ,  H04R25/604 ,  H04R25/609 ,  G06F16/686

Abstract: A hearing aid configured to be worn at or in an ear of a user including hearing aid comprising A) a multitude of microphones, B) a database including b1) a plurality of acoustic transfer function vectors representing different candidate locations of a target sound source in the environment relative to the microphone system, and b2) a multitude of posterior probabilities related to at least some of the acoustic transfer function vectors, each posterior probability representing the probability of a given acoustic transfer function given a particular eye-gaze direction of the user, and C) a processor configured to determine a current location of the target sound source relative to the user.

公开(公告)号：US20230083192A1

公开(公告)日：2023-03-16

申请号：US17982687

申请日：2022-11-08

Applicant: Oticon A/S

Inventor： Poul HOANG ,  Jan M. DE HAAN ,  Jesper JENSEN ,  Michael Syskind PEDERSEN

IPC: H04R1/10 ,  G10K11/178 ,  H04R25/00

Abstract: A hearing device adapted for being located at or in an ear of a user, or for being fully or partially implanted in the head of a user comprises a) an input unit for providing at least one electric input signal representing sound in an environment of the user, said electric input signal comprising a target speech signal from a target sound source and additional signal components, termed noise signal components, from one or more other sound sources, b) a noise reduction system for providing an estimate of said target speech signal, wherein said noise signal components are at least partially attenuated, and c) an own voice detector for repeatedly estimating whether or not, or with what probability, said at least one electric input signal, or a signal derived therefrom, comprises speech originating from the voice of the user. The noise signal components are identified during time segments wherein the own voice detector indicates that the at least one electric input signal, or a signal derived therefrom, originates from the voice of the user, or originates from the voice of the user with a probability above an own voice presence probability (OVPP) threshold value. A method of operating a hearing device is further disclosed.

公开(公告)号：US20230056617A1

公开(公告)日：2023-02-23

申请号：US17981648

申请日：2022-11-07

Applicant: Oticon A/S

Inventor： Michael Syskind PEDERSEN ,  Asger Heidemann ANDERSEN ,  Jesper JENSEN ,  Nels Hede ROHDE ,  Anders Brødløs OLSEN ,  Michael Smed KRISTENSEN ,  Thomas BENTSEN ,  Svend Oscar PETERSEN

IPC: H04R25/00 ,  G06N3/063 ,  G10L15/08 ,  G10L17/00

Abstract: A hearing device comprises an input transducer comprising a microphone for providing an electric input signal representative of sound in the environment of the hearing device, a pre-processor for processing electric input signal and providing a multitude of feature vectors, each being representative of a time segment thereof, a neural network processor adapted to implement a neural network for implementing a detector configured to provide an output indicative of a characteristic property of the at least one electric input signal, the neural network being configured to receive said multitude of feature vectors as input vectors and to provide corresponding output vectors representative of said output of said detector in dependence of said input vectors. The hearing device further comprises a transceiver comprising a transmitter and a receiver for establishing a communication link to another part or device or server, at least in a particular adaptation-mode of operation, and a selector for—in said particular adaptation—mode of operation—routing said feature vectors to said transmitter for transmission to said another part or device or server, and—in a normal mode of operation—to route said feature vectors to said neural network processor for use as inputs to said neural network, a neural network controller connected to said neural network processor for—in said particular adaptation-mode of operation—receiving optimized node parameters, and to apply said optimized node parameters to said nodes of said neural network to thereby implement an optimized neural network in said neural network processor, wherein the optimized node parameters have been selected among a multitude of sets of node parameters for respective candidate neural networks according to a predefined criterion in dependence of said feature vectors. A method of selecting optimized parameters for a neural network for use in a portable hearing device is further disclosed. The invention may e.g. be used in hearing aids or headsets, or similar, e.g. wearable, devices.

公开(公告)号：US20230044634A1

公开(公告)日：2023-02-09

申请号：US17970275

申请日：2022-10-20

Applicant: Oticon A/S

Inventor： Nels Hede ROHDE ,  Thomas BENTSEN ,  Anders Brødløs OLSEN ,  Michael Syskind PEDERSEN ,  Svend FELDT ,  Jesper JENSEN

IPC: H04R25/00 ,  H04M1/72409 ,  G01B17/00

Abstract: A hearing aid system comprises a hearing aid, and a portable auxiliary device’ adapted to establish a communication link between them. The hearing aid comprises a microphone providing an electric input signal, a signal processor, and an output unit. The auxiliary device comprises a microphone providing an auxiliary electric input signal, and a user control interface allowing a user to initiate a specific calibration mode of operation of the hearing aid system. The signal processor of the hearing aid is configured to receive corresponding time segments of said electric input signal and said auxiliary electric input signal to provide an estimate of an acoustic transfer function from said microphone of said auxiliary device to said microphone of said hearing aid. A method of operating a hearing aid system is further disclosed. The invention may e.g. be used in various applications related to own voice detection and estimation.