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    Method for determining a signal component for reducing noise in an input signal
    1.
    发明授权
    Method for determining a signal component for reducing noise in an input signal 有权
    用于确定用于降低输入信号中的噪声的信号分量的方法

    公开(公告)号：US08705759B2

    公开(公告)日：2014-04-22

    申请号：US12749136

    申请日：2010-03-29

    申请人： Tobias Wolff ,  Markus Buck ,  Toby Christian Lawin-Ore

    发明人： Tobias Wolff ,  Markus Buck ,  Toby Christian Lawin-Ore

    IPC分类号： H04B3/20 ,  H04B15/00 ,  G10L21/00

    CPC分类号： G10L21/02

    摘要： The invention provides a method for determining a signal component for reducing noise in an input signal, which comprises a noise component, comprising the steps of: estimating the noise component in the input signal, estimating a reverberation component in the noise component, and removing the estimated reverberation component from the estimated noise component to obtain a modified estimate of the noise component.

    摘要翻译： 本发明提供一种确定用于降低输入信号中的噪声的信号分量的方法，包括噪声分量，包括以下步骤：估计输入信号中的噪声分量，估计噪声分量中的混响分量，以及去除 从估计的噪声分量估计混响分量，以获得噪声分量的修正估计。

    Beamforming pre-processing for speaker localization
    2.
    发明授权
    Beamforming pre-processing for speaker localization 有权
    演讲者本地化的波束成形预处理

    公开(公告)号：US08660274B2

    公开(公告)日：2014-02-25

    申请号：US12504333

    申请日：2009-07-16

    申请人： Tobias Wolff ,  Markus Buck ,  Gerhard Schmidt

    发明人： Tobias Wolff ,  Markus Buck ,  Gerhard Schmidt

    IPC分类号： H04R3/00

    CPC分类号： H04R3/005 ,  H04R2430/20 ,  H04R2430/23

    摘要： Embodiments of the present invention relate to methods, systems, and computer program products for signal processing. A first plurality of microphone signals is obtained by a first microphone array. A second plurality of microphone signals is obtained by a second microphone array different from the first microphone array. The first plurality of microphone signals is beamformed by a first beamformer comprising beamforming weights to obtain a first beamformed signal. The second plurality of microphone signals is beamformed by a second beamformer comprising the same beamforming weights as the first beamformer to obtain a second beamformed signal. The beamforming weights are adjusted such that the power density of echo components and/or noise components present in the first and second plurality of microphone signals is substantially reduced.

    摘要翻译： 本发明的实施例涉及用于信号处理的方法，系统和计算机程序产品。 第一麦克风信号由第一麦克风阵列获得。 通过与第一麦克风阵列不同的第二麦克风阵列获得第二多个麦克风信号。 第一组多个麦克风信号由包括波束成形权重的第一波束形成器波束形成，以获得第一波束形成信号。 第二组麦克风信号由包括与第一波束形成器相同的波束形成权重的第二波束形成器波束形成，以获得第二波束形成信号。 调整波束成形权重使得第一和第二多个麦克风信号中存在的回波分量和/或噪声分量的功率密度显着降低。

    IN-CAR COMMUNICATION SYSTEM FOR MULTIPLE ACOUSTIC ZONES
    3.
    发明申请
    IN-CAR COMMUNICATION SYSTEM FOR MULTIPLE ACOUSTIC ZONES 有权
    多声道区域的车内通信系统

    公开(公告)号：US20130179163A1

    公开(公告)日：2013-07-11

    申请号：US13346854

    申请日：2012-01-10

    申请人： Tobias Herbig ,  Markus Buck ,  Meik Pfeffinger

    发明人： Tobias Herbig ,  Markus Buck ,  Meik Pfeffinger

    IPC分类号： G10L15/20 ,  H04B1/00

    CPC分类号： H04R3/12 ,  G10L21/0208 ,  G10L25/84 ,  G10L2021/02082 ,  H04M9/082 ,  H04R1/406 ,  H04R3/005 ,  H04R3/02 ,  H04R5/02 ,  H04R27/00 ,  H04R2201/403 ,  H04R2227/001 ,  H04R2227/009 ,  H04R2410/05 ,  H04R2420/01 ,  H04R2499/13

    摘要： An In-Car Communication (ICC) system supports the communication paths within a car by receiving the speech signals of a speaking passenger and playing it back for one or more listening passengers. Signal processing tasks are split into a microphone related part and into a loudspeaker related part. A sound processing system suitable for use in a vehicle having multiple acoustic zones includes a plurality of microphone In-Car Communication (Mic-ICC) instances coupled and a plurality of loudspeaker In-Car Communication (Ls-ICC) instances. The system further includes a dynamic audio routing matrix with a controller and coupled to the Mic-ICC instances, a mixer coupled to the plurality of Mic-ICC instances and a distributor coupled to the Ls-ICC instances.

    摘要翻译： 车载通信（ICC）系统通过接收说话的乘客的语音信号并且为一个或多个听力乘客返回来支持汽车内的通信路径。 信号处理任务分为麦克风相关部分和扬声器相关部分。 适用于具有多个声学区域的车辆的声音处理系统包括耦合的多个麦克风车载通信（Mic-ICC）实例和多个扬声器车载通信（Ls-ICC）实例。 该系统还包括具有控制器并耦合到Mic-ICC实例的动态音频路由矩阵，耦合到多个Mic-ICC实例的混合器和耦合到Ls-ICC实例的分配器。

    Vehicle communication system
    4.
    发明授权
    Vehicle communication system 有权
    车辆通信系统

    公开(公告)号：US08483775B2

    公开(公告)日：2013-07-09

    申请号：US13240424

    申请日：2011-09-22

    申请人： Markus Buck ,  Tim Haulick ,  Gerhard Uwe Schmidt ,  Michael Tropp

    发明人： Markus Buck ,  Tim Haulick ,  Gerhard Uwe Schmidt ,  Michael Tropp

    IPC分类号： H04M1/00

    CPC分类号： H04M1/6083 ,  H04M9/001 ,  H04M2250/02 ,  H04R2420/07 ,  H04R2499/13 ,  H04W4/04 ,  H04W88/02

    摘要： A vehicle communication system detects the presence of a passenger wearable communication device. The system receives audio signals from multiple sources inside or outside of a vehicle. The system processes the signals before routing the signals to multiple destinations. The destinations may include wearable personal communication devices, front and/or rear speakers, and/or a remote mobile device.

    摘要翻译： 车辆通信系统检测乘客可穿戴通信设备的存在。 该系统从车辆内部或外部的多个源接收音频信号。 在将信号路由到多个目的地之前，系统处理信号。 目的地可以包括穿戴式个人通信设备，前置和/或后置扬声器和/或远程移动设备。

    Method and device for locating a sound source
    7.
    发明授权
    Method and device for locating a sound source 有权
    用于定位声源的方法和装置

    公开(公告)号：US08194500B2

    公开(公告)日：2012-06-05

    申请号：US12547681

    申请日：2009-08-26

    申请人： Tobias Wolff ,  Markus Buck ,  Gerhard Schmidt ,  Olga González Valbuena ,  Günther Wirsching

    发明人： Tobias Wolff ,  Markus Buck ,  Gerhard Schmidt ,  Olga González Valbuena ,  Günther Wirsching

    IPC分类号： G10L21/02 ,  G01S3/80 ,  H04R3/00

    CPC分类号： G01S3/8083

    摘要： A method of locating a sound source based on sound received at an array of microphones comprises the steps of determining a correlation function of signals provided by microphones of the array and establishing a direction in which the sound source is located based on at least one eigenvector of a matrix having matrix elements which are determined based on the correlation function. The correlation function has first and second frequency components associated with a first and second frequency band, respectively. The first frequency component is determined based on signals from microphones having a first distance, and the second frequency component is determined based on signals from microphones having a second distance different from the first distance.

    摘要翻译： 基于在麦克风阵列处接收到的声音来定位声源的方法包括以下步骤：确定由阵列的麦克风提供的信号的相关函数，并基于至少一个本征向量建立声源所在的方向 具有基于相关函数确定的矩阵元素的矩阵。 相关函数分别具有与第一和第二频带相关联的第一和第二频率分量。 基于来自具有第一距离的麦克风的信号确定第一频率分量，并且基于来自具有不同于第一距离的第二距离的麦克风的信号来确定第二频率分量。

    Microphone Non-Uniformity Compensation System
    8.
    发明申请
    Microphone Non-Uniformity Compensation System 有权
    麦克风不均匀性补偿系统

    公开(公告)号：US20120106749A1

    公开(公告)日：2012-05-03

    申请号：US13273816

    申请日：2011-10-14

    申请人： Markus Buck ,  Tim Haulick

    发明人： Markus Buck ,  Tim Haulick

    IPC分类号： H04B3/20 ,  H04R3/00

    CPC分类号： H04R3/005 ,  H04R2430/25

    摘要： A microphone compensation system responds to changes in the characteristics of individual microphones in an array of microphones. The microphone compensation system provides a communication system with consistent performance despite microphone aging, widely varying environmental conditions, and other factors that alter the characteristics of the microphones. Furthermore, lengthy, complex, and costly measurement and analysis phases for determining initial settings for filters in the communication system are eliminated.

    摘要翻译： 麦克风补偿系统可以响应麦克风阵列中各个麦克风的特性变化。 麦克风补偿系统提供了具有一致性能的通信系统，尽管麦克风老化，广泛变化的环境条件以及改变麦克风特性的其它因素。 此外，消除了用于确定通信系统中的滤波器的初始设置的冗长，复杂且昂贵的测量和分析阶段。

    Method for dereverberation of an acoustic signal
    9.
    发明授权
    Method for dereverberation of an acoustic signal 有权
    声信号的混响方法

    公开(公告)号：US08160262B2

    公开(公告)日：2012-04-17

    申请号：US12263227

    申请日：2008-10-31

    申请人： Markus Buck ,  Arthur Wolf

    发明人： Markus Buck ,  Arthur Wolf

    IPC分类号： H04B1/38

    CPC分类号： G10L2021/02082

    摘要： A method is provided for estimating a reverberation signal component of an acoustic signal detected by a microphone where the acoustic signal is comprised of a direct sound component and a reverberation signal component. A method for dereverberation of an acoustic signal is further provided.

    摘要翻译： 提供一种用于估计由麦克风检测到的声信号的混响信号分量的方法，其中声信号由直接声音分量和混响信号分量组成。 还提供了一种用于声信号的混响的方法。

    System for equalizing an acoustic signal
    10.
    发明授权
    System for equalizing an acoustic signal 有权
    用于均衡声信号的系统

    公开(公告)号：US08098848B2

    公开(公告)日：2012-01-17

    申请号：US11749678

    申请日：2007-05-16

    申请人： Tim Haulick ,  Gerhard Uwe Schmidt ,  Markus Buck

    发明人： Tim Haulick ,  Gerhard Uwe Schmidt ,  Markus Buck

    IPC分类号： H03G5/00

    CPC分类号： H03G3/32 ,  H03G5/16 ,  H04R3/04 ,  H04R2499/13

    摘要： An equalization system enhances the quality of communications between a remote party and a local party. The equalization system includes an equalization filter that equalizes an acoustic signal received from the remote party. The equalized acoustic signal is transmitted to a speaker based on the equalized acoustic signal. A device converts sound into electrical signals. The electrical signals are transmitted to an echo compensation filter that compensates for reflected sound. Filter characteristics of the equalization filter are based on filter characteristics of the echo compensation filter.

    摘要翻译： 均衡系统提高了远程方与本地方之间的通信质量。 均衡系统包括均衡滤波器，其均衡从远程方接收的声信号。 均衡的声信号基于均衡的声信号被发送到扬声器。 设备将声音转换为电信号。 电信号被传送到补偿反射声音的回波补偿滤波器。 均衡滤波器的滤波特性基于回波补偿滤波器的滤波特性。