专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

11. 发明授权

US09293151B2 Speech signal enhancement using visual information 有权
标题翻译：使用视觉信息的语音信号增强
公开(公告)号：US09293151B2
公开(公告)日：2016-03-22
申请号：US14352016
申请日：2011-10-17
申请人： Tobias Herbig , Tobias Wolff , Markus Buck
发明人： Tobias Herbig , Tobias Wolff , Markus Buck
IPC分类号： G10L25/27 , G06K9/00 , G06T7/00 , H04M3/56 , H04R3/00 , G10L15/20 , G10L17/00 , H04N7/15 , G10L25/78 , G10L21/0208
CPC分类号： G10L25/27 , G06K9/00624 , G06T7/73 , G06T2207/30196 , G10L15/20 , G10L17/00 , G10L25/78 , G10L2021/02082 , H04M3/568 , H04N7/15
摘要： Visual information is used to alter or set an operating parameter of an audio signal processor, other than a beamformer. A digital camera captures visual information about a scene that includes a human speaker and/or a listener. The visual information is analyzed to ascertain information about acoustics of a room. A distance between the speaker and a microphone may be estimated, and this distance estimate may be used to adjust an overall gain of the system. Distances among, and locations of, the speaker, the listener, the microphone, a loudspeaker and/or a sound-reflecting surface may be estimated. These estimates may be used to estimate reverberations within the room and adjust aggressiveness of an anti-reverberation filter, based on an estimated ratio of direct to indirect (reverberated) sound energy expected to reach the microphone. In addition, orientation of the speaker or the listener, relative to the microphone or the loudspeaker, can also be estimated, and this estimate may be used to adjust frequency-dependent filter weights to compensate for uneven frequency propagation of acoustic signals from a mouth, or to a human ear, about a human head.
摘要翻译：视觉信息用于改变或设置除波束形成器之外的音频信号处理器的操作参数。数码相机拍摄有关包含人类扬声器和/或听众的场景的视觉信息。分析视觉信息以确定关于房间声学的信息。可以估计扬声器和麦克风之间的距离，并且该距离估计可以用于调整系统的整体增益。可以估计扬声器，收听者，麦克风，扬声器和/或声音反射表面之间的距离和位置。这些估计可以用于估计房间内的混响，并基于估计达到麦克风的直接到间接（混响）声能的估计比例来调节反混响滤波器的积极性。此外，还可以估计扬声器或收听者相对于麦克风或扬声器的取向，并且该估计可用于调整频率依赖的滤波器权重以补偿来自口的声信号的不均匀频率传播，或人的耳朵，关于人的头部。

12. 发明授权

US08787560B2 Method for determining a set of filter coefficients for an acoustic echo compensator 有权
标题翻译：用于确定声学回声补偿器的滤波器系数集合的方法
公开(公告)号：US08787560B2
公开(公告)日：2014-07-22
申请号：US12708172
申请日：2010-02-18
申请人： Markus Buck , Gerhard Schmidt , Tobias Wolff
发明人： Markus Buck , Gerhard Schmidt , Tobias Wolff
IPC分类号： H04M9/08 , G01S15/00 , H04R3/00
CPC分类号： H04R3/002 , G10L2021/02082 , H04M9/082 , H04R1/406 , H04R3/005 , H04R2430/20
摘要： The invention provides a method for determining a set of filter coefficients for an acoustic echo compensator in a beamformer arrangement. The acoustic echo compensator compensates for echoes within the beamformed signal. A plurality of sets of filter coefficients for the acoustic echo compensator is provided. Each set of filter coefficients corresponds to one of a predetermined number of steering directions of the beamformer arrangement. The predetermined number of steering directions is equal to or greater than the number of microphones in the microphone array. For a current steering direction, a current set of filter coefficients for the acoustic echo compensator is determined based on the provided sets of filter coefficients.
摘要翻译：本发明提供一种用于确定波束形成器布置中的声学回波补偿器的滤波器系数集合的方法。声回波补偿器补偿波束形成信号内的回波。提供了用于声学回声补偿器的多组滤波器系数。每组滤波器系数对应于波束形成器装置的预定数量的转向方向之一。预定数量的转向方向等于或大于麦克风阵列中的麦克风的数量。对于当前的转向方向，基于所提供的滤波器系数集合来确定用于声学回声补偿器的当前一组滤波器系数。

13. 发明申请

US20110019835A1 Speaker Localization 有权
标题翻译：演讲者本地化
公开(公告)号：US20110019835A1
公开(公告)日：2011-01-27
申请号：US12742907
申请日：2008-11-17
申请人： Gerhard Schmidt , Tobias Wolff , Markus Buck , Olga González Valbuena , Günther Wirsching
发明人： Gerhard Schmidt , Tobias Wolff , Markus Buck , Olga González Valbuena , Günther Wirsching
IPC分类号： G10K11/16 , H04R3/00
CPC分类号： H04R29/00 , G10L21/0272 , G10L2021/02166 , H04R3/005
摘要： The present invention relates to a method for localizing a sound source, in particular, a human speaker, comprising detecting sound generated by the sound source by means of a microphone array comprising more than two microphones and obtaining microphone signals, one for each of the microphones, selecting from the microphone signals a pair of microphone signals for a predetermined frequency range based on the distance of the microphones to each other and estimating the angle of the incidence of the sound on the microphone array based on the selected pair of microphone signals.
摘要翻译：本发明涉及一种用于定位声源，特别是人类扬声器的方法，包括通过包括两个以上麦克风的麦克风阵列检测声源产生的声音并获得麦克风信号，每个麦克风基于麦克风彼此的距离，基于所选择的一对麦克风信号估计麦克风阵列上的声音的入射角度，从麦克风选择一个麦克风信号达到预定频率范围。

14. 发明申请

US20100246851A1 Method for Determining a Noise Reference Signal for Noise Compensation and/or Noise Reduction 有权
标题翻译：确定用于噪声补偿和/或降噪的噪声参考信号的方法
公开(公告)号：US20100246851A1
公开(公告)日：2010-09-30
申请号：US12749066
申请日：2010-03-29
申请人： Markus Buck , Tobias Wolff , Toby Christian Lawin-Ore , Samuel Ngouoko Mboungueng , Gerhard Schmidt
发明人： Markus Buck , Tobias Wolff , Toby Christian Lawin-Ore , Samuel Ngouoko Mboungueng , Gerhard Schmidt
IPC分类号： H04B15/00
CPC分类号： G10K11/002 , G10L21/0208 , G10L2021/02165 , G10L2021/02166 , H04R3/005 , H04R2499/13
摘要： The invention provides a method for determining a noise reference signal for noise compensation and/or noise reduction. A first audio signal on a first signal path and a second audio signal on a second signal path are received. The first audio signal is filtered using a first adaptive filter to obtain a first filtered audio signal. The second audio signal is filtered using a second adaptive filter to obtain a second filtered audio signal. The first and the second filtered audio signal are combined to obtain the noise reference signal. The first and the second adaptive filter are adapted such as to minimize a wanted signal component in the noise reference signal.
摘要翻译：本发明提供了一种用于确定用于噪声补偿和/或降噪的噪声参考信号的方法。接收第一信号路径上的第一音频信号和第二信号路径上的第二音频信号。使用第一自适应滤波器对第一音频信号进行滤波，以获得第一滤波音频信号。使用第二自适应滤波器对第二音频信号进行滤波，以获得第二滤波音频信号。第一和第二滤波音频信号被组合以获得噪声参考信号。第一和第二自适应滤波器适于使噪声参考信号中的有用信号分量最小化。

15. 发明授权

US08705759B2 Method for determining a signal component for reducing noise in an input signal 有权
标题翻译：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。

16. 发明授权

US08660274B2 Beamforming pre-processing for speaker localization 有权
标题翻译：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。

17. 发明授权

US08194500B2 Method and device for locating a sound source 有权
标题翻译：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。

18. 发明申请

US20100246844A1 Method for Determining a Signal Component for Reducing Noise in an Input Signal 有权
标题翻译：确定用于降低输入信号噪声的信号分量的方法
公开(公告)号：US20100246844A1
公开(公告)日：2010-09-30
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
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。

19. 发明申请

US20080298602A1 SYSTEM FOR PROCESSING MICROPHONE SIGNALS TO PROVIDE AN OUTPUT SIGNAL WITH REDUCED INTERFERENCE 有权
标题翻译：用于处理麦克风信号以减少干扰的输出信号的系统
公开(公告)号：US20080298602A1
公开(公告)日：2008-12-04
申请号：US12125298
申请日：2008-05-22
申请人： Tobias Wolff , Markus Buck
发明人： Tobias Wolff , Markus Buck
IPC分类号： H04B3/20
CPC分类号： H04M9/082 , G10L2021/02082 , G10L2021/02166
摘要： A system reduces noise or other external signals that may affect communication. A device converts sound from two or more microphones into an operational signal. Based on one or both signals, a beamformer generates an intermediate signal. Reflected or other undesired signals may be estimated or measured by an echo canceller. Interference may be measured or estimated by processing the echo-reduced signal or estimate by a blocking matrix. An interference canceller may reduce the interference that may modify or disrupt a signal based on the output of the blocking matrix and the intermediate signal.
摘要翻译：系统减少可能影响通信的噪声或其他外部信号。设备将来自两个或更多麦克风的声音转换为操作信号。基于一个或两个信号，波束形成器产生中间信号。可以通过回波消除器来估计或测量反射或其它不需要的信号。可以通过处理回波减小信号或通过阻塞矩阵估计来测量或估计干扰。干扰消除器可以减少可能基于阻塞矩阵和中间信号的输出修改或中断信号的干扰。

20. 发明授权

US08675890B2 Speaker localization 有权
标题翻译：演讲者本地化
公开(公告)号：US08675890B2
公开(公告)日：2014-03-18
申请号：US12742907
申请日：2008-11-17
申请人： Gerhard Schmidt , Tobias Wolff , Markus Buck , Olga González Valbuena , Günther Wirsching
发明人： Gerhard Schmidt , Tobias Wolff , Markus Buck , Olga González Valbuena , Günther Wirsching
IPC分类号： H04R3/00
CPC分类号： H04R29/00 , G10L21/0272 , G10L2021/02166 , H04R3/005
摘要： The present invention relates to a method for localizing a sound source, in particular, a human speaker, comprising detecting sound generated by the sound source by means of a microphone array comprising more than two microphones and obtaining microphone signals, one for each of the microphones, selecting from the microphone signals a pair of microphone signals for a predetermined frequency range based on the distance of the microphones to each other and estimating the angle of the inci-dence of the sound on the microphone array based on the selected pair of micro-phone signals.
摘要翻译：本发明涉及一种用于定位声源，特别是人类扬声器的方法，包括通过包括两个以上麦克风的麦克风阵列检测声源产生的声音并获得麦克风信号，每个麦克风基于麦克风彼此的距离，从麦克风选择一个麦克风信号达到预定频率范围，并基于所选择的一对微型麦克风估计麦克风阵列上的声音的角度，电话信号。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式