公开(公告)号：US20180041849A1

公开(公告)日：2018-02-08

申请号：US15669020

申请日：2017-08-04

Applicant: Oticon A/S

Inventor： Mojtaba FARMANI ,  Michael Syskind PEDERSEN ,  Jesper JENSEN

IPC: H04R25/00

CPC classification number: H04R25/552 ,  G10L21/0216 ,  H04R25/405 ,  H04R25/407 ,  H04R25/505 ,  H04R25/554 ,  H04S2420/01

Abstract: A hearing aid system comprising a pair of hearing devices, e.g. hearing aids, worn at the ears of a user receives a target signal generated by a target signal source and transmitted through an acoustic channel to microphones of the hearing aid system. Due to (potential) additive environmental noise, a noisy acoustic signal is received at the microphones of the hearing system. An essentially noise-free version of the target signal is simultaneously transmitted to the hearing devices of the hearing system via a wireless connection. Based on a sound propagation model of the acoustic propagation channel from the target sound source to the microphones of the hearing aid system, and on relative transfer functions representing direction-dependent filtering effects of the head and torso of the user in the form of direction-dependent acoustic transfer functions from a microphone on one side of the head, to a microphone on the other side of the head, a direction-of-arrival (DoA) of the target sound signal relative to the user is determined using a maximum likelihood approach.

公开(公告)号：US20170345439A1

公开(公告)日：2017-11-30

申请号：US15608224

申请日：2017-05-30

Applicant: Oticon A/S

Inventor： Jesper JENSEN ,  Ulrik KJEMS ,  Andreas Thelander BERTELSEN ,  Michael Syskind PEDERSEN

IPC: G10L21/0232 ,  H04M1/60 ,  A61F11/06 ,  H04B1/3827 ,  H04R25/00 ,  H04R1/10

CPC classification number: G10L21/0232 ,  A61F11/06 ,  G10L21/0216 ,  G10L21/0264 ,  H04B1/3833 ,  H04M1/6041 ,  H04R1/1083 ,  H04R25/50 ,  H04R25/505 ,  H04R25/558 ,  H04R2225/43

Abstract: An audio processing device comprises a) at least one input unit for providing time-frequency representation Y(k,n) of an electric input signal representing sound consisting of target speech and noise signal components, where k and n are frequency band and time frame indices, respectively, b) a noise detection and/or reduction system configured to b1) determine an a posteriori signal to noise ratio estimate γ(k,n) of said electric input signal, and to b2) determine an a priori target signal to noise signal ratio estimate ζ(k,n) of said electric input signal from said a posteriori signal to noise ratio estimate γ(k,n) based on a recursive decision directed algorithm. The application further relates to a method of of estimating an a priori signal to noise ratio. The invention may e.g. be used for the hearing aids, headsets, ear phones, active ear protection systems, handsfree telephone systems, mobile telephones, etc.(Fig. 1A should be published)

公开(公告)号：US20170295437A1

公开(公告)日：2017-10-12

申请号：US15482188

申请日：2017-04-07

Applicant: Oticon A/S

Inventor： Andreas Thelander BERTELSEN ,  Michael Syskind PEDERSEN ,  Jesper JENSEN ,  Thomas KAULBERG ,  Morten CHRISTOPHERSEN

IPC: H04R25/00

CPC classification number: H04R25/407 ,  G10L21/0232 ,  G10L2021/02166 ,  H04R25/353 ,  H04R25/405 ,  H04R25/552 ,  H04R25/554 ,  H04R25/558 ,  H04R25/606 ,  H04R2225/41 ,  H04R2225/43 ,  H04R2225/61 ,  H04R2430/20

Abstract: A hearing aid comprises a) first and second microphones b) an adaptive beamformer filtering unit comprising, b1) a first and second memories comprising a first and second sets of complex frequency dependent weighting parameters representing a first and second beam patterns, where said first and second sets of weighting parameters are predetermined initial values or values updated during operation of the hearing aid, b3) an adaptive beamformer processing unit providing an adaptation parameter βopt(k) representing an adaptive beam pattern configured to attenuate unwanted noise under the constraint that sound from a target direction is essentially unaltered, b4) a third memory comprising a fixed adaptation parameter βfix(k) representing a third, fixed beam pattern, b5) a mixing unit providing a resulting complex, frequency dependent adaptation parameter βmix(k) as a combination of said fixed and adaptively determined frequency dependent adaptation parameters βfix(k) and βopt(k), respectively, and b6) a resulting beamformer (Y) for providing a resulting beamformed signal YBF based on first and second microphone signals, said first and second sets of complex frequency dependent weighting parameters, and said resulting complex, frequency dependent adaptation parameter βmix(k).

公开(公告)号：US20170272870A1

公开(公告)日：2017-09-21

申请号：US15457694

申请日：2017-03-13

Applicant: Oticon A/S

Inventor： Asger Heidemann ANDERSEN ,  Jan Mark DE HAAN ,  Zheng-Hua TAN ,  Jesper JENSEN ,  Michael Syskind PEDERSEN

IPC: H04R25/00 ,  G10L25/06 ,  G10L21/038

CPC classification number: H04R25/505 ,  G10L19/00 ,  G10L21/038 ,  G10L25/06 ,  G10L25/60 ,  H04R25/552 ,  H04R25/554 ,  H04R2225/43 ,  H04R2225/51

Abstract: An intrusive binaural speech intelligibility predictor system receives a target signal comprising speech in left and right essentially noise-free and noisy and/or processed versions at left and right ears of a listener. The system comprises a) first, second, third and fourth input units for providing time-frequency representations of said left and right noise-free and noisy/processed versions of the target signal, respectively; b) first and second Equalization-Cancellation stages adapted to receive and relatively time shift and amplitude adjust the left and right noise-free and noisy/processed versions, respectively, and to provide resulting noise-free and noisy/processed signals, respectively; and c) a monaural speech intelligibility predictor unit for providing final binaural speech intelligibility predictor value SI-Measure based on said resulting noise-free and noisy/processed signals. The Equalization-Cancellation stages are adapted to optimize the SI-Measure to indicate a maximum intelligibility of said noisy/processed versions of the target signal by said listener. The invention may e.g. be used in development systems for hearing aids.

公开(公告)号：US20150043742A1

公开(公告)日：2015-02-12

申请号：US14449372

申请日：2014-08-01

Applicant: Oticon A/S

Inventor： Jesper JENSEN ,  Jesper Bünsow BOLDT

IPC: H04R25/00

CPC classification number: H04R25/554 ,  H04R25/43 ,  H04R2225/49

Abstract: The present disclosure regards a hearing device comprising a power source, electric circuitry, a loudspeaker, at least one microphone for sound from an acoustic environment, and at least one wireless receiver for wirelessly received sound signals. The microphone is configured to generate an environment sound signal. The wireless receiver is configured generate a source sound signal. The electric circuitry is configured to estimate at least one parameter of an impulse response from the location of the origin of the wirelessly received signal to the location of a user of the hearing device in dependence on the source sound signal and the environment sound signal. The electric circuitry is further configured to process the environment sound signal in dependence on the estimated at least one impulse-response parameter, thereby generating an output sound signal. The output sound signal is processed into sound by the loudspeaker.

Abstract translation: 本公开涉及包括电源，电路，扬声器，来自声学环境的声音的至少一个麦克风和至少一个用于无线接收的声音信号的无线接收器的听力设备。 麦克风被配置为产生环境声音信号。 配置无线接收器产生源声音信号。 电路被配置为根据源声音信号和环境声音信号从无线接收信号的原点的位置估计到听力设备的用户的位置的脉冲响应的至少一个参数。 电路还被配置为根据估计的至少一个脉冲响应参数来处理环境声音信号，由此产生输出声音信号。 扬声器将输出声音信号处理成声音。

公开(公告)号：US20140177868A1

公开(公告)日：2014-06-26

申请号：US14109556

申请日：2013-12-17

Applicant: OTICON A/S

Inventor： Jesper JENSEN ,  Michael Syskind PEDERSEN

IPC: H04R3/00

CPC classification number: H04R3/002 ,  G10L21/0208 ,  G10L25/18 ,  G10L25/51 ,  G10L2021/02085

Abstract: An audio processing device comprises a forward path comprising an input unit for delivering a time varying electric input signal representing an audio signal, the electric input signal comprising a target signal part and a noise signal part, a signal processing unit for processing said electric input signal and providing a processed signal, and an output unit for delivering an output signal based on said processed signal. An audio processing device comprises an analysis path comprising a model unit comprising a perceptive model of the human auditory system and providing an audibility measure, an artifact identification unit for identifying an artifact introduced into the processed signal by the processing algorithm and providing an artifact identification measure, and a gain control unit for controlling a gain applied to a signal of the forward path.

Abstract translation: 音频处理装置包括前向路径，该前向路径包括用于传送表示音频信号的时变电输入信号的输入单元，所述电输入信号包括目标信号部分和噪声信号部分，用于处理所述电输入信号的信号处理单元 并提供处理后的信号，以及输出单元，用于基于所述处理的信号传送输出信号。 音频处理设备包括分析路径，该分析路径包括模型单元，该模型单元包括人类听觉系统的感知模型并提供可听度量度，伪像识别单元，用于识别通过处理算法引入到处理信号中的伪影，并提供伪像识别测量 以及增益控制单元，用于控制施加到前向路径的信号的增益。