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1. 发明申请

US20120123772A1 System and Method for Multi-Channel Noise Suppression Based on Closed-Form Solutions and Estimation of Time-Varying Complex Statistics 有权
标题翻译：基于闭式解决方案的多通道噪声抑制系统与方法及时变复杂统计估计
公开(公告)号：US20120123772A1
公开(公告)日：2012-05-17
申请号：US13295818
申请日：2011-11-14
申请人： Jes Thyssen , Huaiyu Zeng , Juin-Hwey Chen , Nelson Sollenberger , Xianxian Zhang
发明人： Jes Thyssen , Huaiyu Zeng , Juin-Hwey Chen , Nelson Sollenberger , Xianxian Zhang
IPC分类号： G10L21/02
CPC分类号： G10L21/0208 , G10L21/0272 , G10L2021/02165 , H04R1/245 , H04R2410/07
摘要： Multi-channel noise suppression systems and methods are described that omit the traditional delay-and-sum fixed beamformer in devices that include a primary speech microphone and at least one noise reference microphone with the desired speech being in the near-field of the device. The multi-channel noise suppression systems and methods use a blocking matrix (BM) to remove desired speech in the input speech signal received by the noise reference microphone to get a “cleaner” background noise component. Then, an adaptive noise canceler (ANC) is used to remove the background noise in the input speech signal received by the primary speech microphone based on the “cleaner” background noise component to achieve noise suppression. The filters implemented by the BM and ANC are derived using closed-form solutions that require calculation of time-varying statistics of complex frequency domain signals in the noise suppression system.
摘要翻译：描述了多通道噪声抑制系统和方法，其省略了传统的延迟和总和固定波束形成器，其包括主话音麦克风和至少一个噪声参考麦克风，其中所需语音位于设备的近场。多声道噪声抑制系统和方法使用阻塞矩阵（BM）去除由噪声参考麦克风接收的输入语音信号中的期望语音以获得“更干净”的背景噪声分量。然后，使用自适应噪声消除器（ANC）来基于“更干净的”背景噪声分量来消除由主话音麦克风接收的输入语音信号中的背景噪声，以实现噪声抑制。由BM和ANC实现的滤波器是使用需要在噪声抑制系统中计算复杂频域信号的时变统计的闭式解决方案导出的。

2. 发明授权

US08965757B2 System and method for multi-channel noise suppression based on closed-form solutions and estimation of time-varying complex statistics 有权
标题翻译：基于闭式解决方案的多通道噪声抑制系统和方法，以及时变复杂统计的估计
公开(公告)号：US08965757B2
公开(公告)日：2015-02-24
申请号：US13295818
申请日：2011-11-14
申请人： Jes Thyssen , Huaiyu Zeng , Juin-Hwey Chen , Nelson Sollenberger , Xianxian Zhang
发明人： Jes Thyssen , Huaiyu Zeng , Juin-Hwey Chen , Nelson Sollenberger , Xianxian Zhang
IPC分类号： G10L21/02 , G10L21/0208 , G10L21/0272 , H04R1/24 , G10L21/0216
CPC分类号： G10L21/0208 , G10L21/0272 , G10L2021/02165 , H04R1/245 , H04R2410/07
摘要： Multi-channel noise suppression systems and methods are described that omit the traditional delay-and-sum fixed beamformer in devices that include a primary speech microphone and at least one noise reference microphone with the desired speech being in the near-field of the device. The multi-channel noise suppression systems and methods use a blocking matrix (BM) to remove desired speech in the input speech signal received by the noise reference microphone to get a “cleaner” background noise component. Then, an adaptive noise canceler (ANC) is used to remove the background noise in the input speech signal received by the primary speech microphone based on the “cleaner” background noise component to achieve noise suppression. The filters implemented by the BM and ANC are derived using closed-form solutions that require calculation of time-varying statistics of complex frequency domain signals in the noise suppression system.
摘要翻译：描述了多通道噪声抑制系统和方法，其省略了传统的延迟和总和固定波束形成器，其包括主话音麦克风和至少一个噪声参考麦克风，其中所需语音位于设备的近场。多声道噪声抑制系统和方法使用阻塞矩阵（BM）去除由噪声参考麦克风接收的输入语音信号中的期望语音以获得“更干净”的背景噪声分量。然后，使用自适应噪声消除器（ANC）来基于“更干净的”背景噪声分量来消除由主话音麦克风接收的输入语音信号中的背景噪声，以实现噪声抑制。由BM和ANC实现的滤波器是使用需要在噪声抑制系统中计算复杂频域信号的时变统计的闭式解决方案导出的。

3. 发明申请

US20120123773A1 System and Method for Multi-Channel Noise Suppression 有权
标题翻译：多通道噪声抑制系统与方法
公开(公告)号：US20120123773A1
公开(公告)日：2012-05-17
申请号：US13295889
申请日：2011-11-14
申请人： Huaiyu ZENG , Jes Thyssen , Nelson Sollenberger , Juin-Hwey Chen , Xianxian Zhang
发明人： Huaiyu ZENG , Jes Thyssen , Nelson Sollenberger , Juin-Hwey Chen , Xianxian Zhang
IPC分类号： G10L21/02
CPC分类号： G10L21/0208 , G10L21/0272 , G10L2021/02165 , H04R1/245 , H04R2410/07
摘要： Described herein are multi-channel noise suppression systems and methods that are configured to detect and suppress wind and background noise using at least two spatially separated microphones: at least one primary speech microphone and at least one noise reference microphone. The multi-channel noise suppression systems and methods are configured, in at least one example, to first detect and suppress wind noise in the input speech signal picked up by the primary speech microphone and, potentially, the input speech signal picked up by the noise reference microphone. Following wind noise detection and suppression, the multi-channel noise suppression systems and methods are configured to perform further noise suppression in two stages: a first linear processing stage that includes a blocking matrix and an adaptive noise canceler, followed by a second non-linear processing stage.
摘要翻译：这里描述的是多通道噪声抑制系统和方法，其被配置为使用至少两个空间分离的麦克风来检测和抑制风和背景噪声：至少一个主话音麦克风和至少一个噪声参考麦克风。在至少一个示例中，多声道噪声抑制系统和方法被配置为首先检测和抑制由主话音麦克风拾取的输入语音信号中的风噪声，并且潜在地由噪声拾取的输入语音信号参考麦克风在风噪声检测和抑制之后，多声道噪声抑制系统和方法被配置为在两个阶段中执行进一步的噪声抑制：包括阻塞矩阵和自适应噪声消除器的第一线性处理级，随后是第二非线性处理阶段。

4. 发明授权

US08977545B2 System and method for multi-channel noise suppression 有权
标题翻译：用于多声道噪声抑制的系统和方法
公开(公告)号：US08977545B2
公开(公告)日：2015-03-10
申请号：US13295889
申请日：2011-11-14
申请人： Huaiyu Zeng , Jes Thyssen , Nelson Sollenberger , Juin-Hwey Chen , Xianxian Zhang
发明人： Huaiyu Zeng , Jes Thyssen , Nelson Sollenberger , Juin-Hwey Chen , Xianxian Zhang
IPC分类号： G10L21/02 , G10L21/0208 , G10L21/0272 , H04R1/24 , G10L21/0216
CPC分类号： G10L21/0208 , G10L21/0272 , G10L2021/02165 , H04R1/245 , H04R2410/07
摘要： Described herein are multi-channel noise suppression systems and methods that are configured to detect and suppress wind and background noise using at least two spatially separated microphones: at least one primary speech microphone and at least one noise reference microphone. The multi-channel noise suppression systems and methods are configured, in at least one example, to first detect and suppress wind noise in the input speech signal picked up by the primary speech microphone and, potentially, the input speech signal picked up by the noise reference microphone. Following wind noise detection and suppression, the multi-channel noise suppression systems and methods are configured to perform further noise suppression in two stages: a first linear processing stage that includes a blocking matrix and an adaptive noise canceler, followed by a second non-linear processing stage.
摘要翻译：这里描述的是多通道噪声抑制系统和方法，其被配置为使用至少两个空间分离的麦克风来检测和抑制风和背景噪声：至少一个主话音麦克风和至少一个噪声参考麦克风。在至少一个示例中，多声道噪声抑制系统和方法被配置为首先检测和抑制由主话音麦克风拾取的输入语音信号中的风噪声，并且潜在地由噪声拾取的输入语音信号参考麦克风在风噪声检测和抑制之后，多声道噪声抑制系统和方法被配置为在两个阶段中执行进一步的噪声抑制：包括阻塞矩阵和自适应噪声消除器的第一线性处理级，随后是第二非线性处理阶段。

5. 发明授权

US09330675B2 Method and apparatus for wind noise detection and suppression using multiple microphones 有权
标题翻译：使用多个麦克风进行风噪声检测和抑制的方法和装置
公开(公告)号：US09330675B2
公开(公告)日：2016-05-03
申请号：US13250355
申请日：2011-09-30
申请人： Xianxian Zhang , Juin-Hwey Chen , Huaiyu Zeng , Jes Thyssen
发明人： Xianxian Zhang , Juin-Hwey Chen , Huaiyu Zeng , Jes Thyssen
IPC分类号： A61F11/06 , G10L21/0208 , G10L21/0272 , H04R1/24 , G10L21/0216
CPC分类号： G10L21/0208 , G10L21/0272 , G10L2021/02165 , H04R1/245 , H04R2410/07
摘要： Unlike sound based pressure waves that go everywhere, air turbulence caused by wind is usually a fairly local event. Therefore, in a system that utilizes two or more spatially separated microphones to pick up sound signals (e.g., speech), wind noise picked up by one of the microphones often will not be picked up (or at least not to the same extent) by the other microphone(s). Embodiments of methods and apparatuses that utilize this tact and others to effectively detect and suppress wind noise using multiple microphones that are spatially separated are described.
摘要翻译：不同于声音的压力波，无处不在，由风引起的空气湍流通常是一个相当地方的事件。因此，在使用两个或多个空间分离的麦克风拾取声音信号（例如语音）的系统中，由麦克风之一拾取的风噪声通常不会被拾取（或至少不相同的程度），由另一个麦克风。描述利用这种技巧和其他技术来有效地检测和抑制使用空间分离的多个麦克风的风噪声的方法和装置的实施例。

6. 发明授权

US08924204B2 Method and apparatus for wind noise detection and suppression using multiple microphones 有权
标题翻译：使用多个麦克风进行风噪声检测和抑制的方法和装置
公开(公告)号：US08924204B2
公开(公告)日：2014-12-30
申请号：US13250291
申请日：2011-09-30
申请人： Juin-Hwey Chen , Jes Thyssen , Xianxian Zhang , Huaiyu Zeng
发明人： Juin-Hwey Chen , Jes Thyssen , Xianxian Zhang , Huaiyu Zeng
IPC分类号： G10L21/00 , G10L21/02 , G10L15/00 , G10L15/20 , G10L13/00 , G10L25/93 , G10L19/00 , G10L19/12 , G10L19/02 , G10L25/90 , G10L21/0208 , H04R1/24 , G10L13/06 , H04R3/00 , H04R29/00 , H03G3/00 , H04R5/00 , H04R5/02 , H03G3/20 , H04B15/00 , H04B17/00 , H04W24/00 , G10L21/0216
CPC分类号： G10L21/0208 , G10L21/0272 , G10L2021/02165 , H04R1/245 , H04R2410/07
摘要： Unlike sound based pressure waves that go everywhere, air turbulence caused by wind is usually a fairly local event. Therefore, in a system that utilizes two or more spatially separated microphones to pick up sound signals (e.g., speech), wind noise picked up by one of the microphones often will not be picked up (or at least not to the same extent) by the other microphone(s). Embodiments of methods and apparatuses that utilize this fact and others to effectively detect and suppress wind noise using multiple microphones that are spatially separated are described.
摘要翻译：不同于声音的压力波，无处不在，由风引起的空气湍流通常是一个相当地方的事件。因此，在使用两个或多个空间分离的麦克风拾取声音信号（例如语音）的系统中，由麦克风之一拾取的风噪声通常不会被拾取（或至少不相同的程度），由另一个麦克风。描述了利用这一事实和其他方法和装置来有效地检测和抑制使用空间分离的多个麦克风的风噪声的方法和装置的实施例。

7. 发明申请

US20120185246A1 NOISE SUPPRESSION USING MULTIPLE SENSORS OF A COMMUNICATION DEVICE 有权
标题翻译：使用通信设备的多个传感器的噪声抑制
公开(公告)号：US20120185246A1
公开(公告)日：2012-07-19
申请号：US13174964
申请日：2011-07-01
申请人： Xianxian Zhang , Jes Thyssen , Kwan Young Shin
发明人： Xianxian Zhang , Jes Thyssen , Kwan Young Shin
IPC分类号： G10L21/02
CPC分类号： G10L21/0208 , G10L2021/02161
摘要： Techniques are described herein that suppress noise using multiple sensors (e.g., microphones) of a communication device. Noise modeling (e.g., estimation of noise basis vectors and noise weighting vectors) is performed with respect to a noise signal during operation of a communication device to provide a noise model. The noise model includes noise basis vectors and noise coefficients that represent noise provided by audio sources other than a user of the communication device. Speech modeling (e.g., estimation of speech basis vectors and speech weighting) is performed to provide a speech model. The speech model includes speech basis vectors and speech coefficients that represent speech of the user. A noisy speech signal is processed using the noise basis vectors, the noise coefficients, the speech basis vectors, and the speech coefficients to provide a clean speech signal.
摘要翻译：本文描述了使用通信设备的多个传感器（例如，麦克风）抑制噪声的技术。在通信设备的操作期间，相对于噪声信号执行噪声建模（例如噪声基矢量和噪声加权矢量的估计）以提供噪声模型。噪声模型包括噪声基矢量和表示由通信设备的用户以外的音频源提供的噪声的噪声系数。执行语音建模（例如，语音基本向量的估计和语音加权）以提供语音模型。语音模型包括表示用户语音的语音基向量和语音系数。使用噪声基矢量，噪声系数，语音基矢量和语音系数来处理噪声语音信号以提供干净的语音信号。

8. 发明授权

US08874441B2 Noise suppression using multiple sensors of a communication device 有权
标题翻译：使用通信设备的多个传感器进行噪声抑制
公开(公告)号：US08874441B2
公开(公告)日：2014-10-28
申请号：US13174964
申请日：2011-07-01
申请人： Xianxian Zhang , Jes Thyssen , Kwan Young Shin
发明人： Xianxian Zhang , Jes Thyssen , Kwan Young Shin
IPC分类号： G10L21/02
CPC分类号： G10L21/0208 , G10L2021/02161
摘要： Techniques are described herein that suppress noise using multiple sensors (e.g., microphones) of a communication device. Noise modeling (e.g., estimation of noise basis vectors and noise weighting vectors) is performed with respect to a noise signal during operation of a communication device to provide a noise model. The noise model includes noise basis vectors and noise coefficients that represent noise provided by audio sources other than a user of the communication device. Speech modeling (e.g., estimation of speech basis vectors and speech weighting) is performed to provide a speech model. The speech model includes speech basis vectors and speech coefficients that represent speech of the user. A noisy speech signal is processed using the noise basis vectors, the noise coefficients, the speech basis vectors, and the speech coefficients to provide a clean speech signal.
摘要翻译：本文描述了使用通信设备的多个传感器（例如，麦克风）抑制噪声的技术。在通信设备的操作期间，相对于噪声信号执行噪声建模（例如噪声基矢量和噪声加权矢量的估计）以提供噪声模型。噪声模型包括噪声基矢量和表示由通信设备的用户以外的音频源提供的噪声的噪声系数。执行语音建模（例如，语音基本向量的估计和语音加权）以提供语音模型。语音模型包括表示用户语音的语音基向量和语音系数。使用噪声基矢量，噪声系数，语音基矢量和语音系数来处理噪声语音信号以提供干净的语音信号。

9. 发明申请

US20110099007A1 NOISE ESTIMATION USING AN ADAPTIVE SMOOTHING FACTOR BASED ON A TEAGER ENERGY RATIO IN A MULTI-CHANNEL NOISE SUPPRESSION SYSTEM 审中-公开
标题翻译：基于多通道噪声抑制系统中的TEAGER能量比的自适应平滑因子的噪声估计
公开(公告)号：US20110099007A1
公开(公告)日：2011-04-28
申请号：US12706890
申请日：2010-02-17
申请人： Xianxian Zhang
发明人： Xianxian Zhang
IPC分类号： G10L21/00 , G10L21/02
CPC分类号： G10L25/78 , G10L21/0208 , G10L21/0232 , G10L2021/02163 , G10L2025/786
摘要： Techniques are described herein that provide multi-channel noise suppression based on a Teager energy ratio. A Teager energy ratio is a ratio of an average Teager energy operator (TEO) energy of a first signal to an average TEO energy of a second signal. The average TEO energy of a signal is defined by the equation: E _ signal = 1 N  ∑ i = 1 N  [ x 2  ( n ) - x  ( n + 1 )  x  ( n - 1 ) ] . In this equation, Ēsignal represents the average TEO energy of the signal; N represents the number of frames in the signal; x(n) represents a magnitude of the signal with respect to an nth frame; x(n+1) represents a magnitude of the signal with respect to an (n+1)th frame; and x(n−1) represents a magnitude of the signal with respect to an (n−1)th frame.
摘要翻译：本文描述了基于Teager能量比提供多通道噪声抑制的技术。 Teager能量比是第一信号的平均Teager能量算子（TEO）能量与第二信号的平均TEO能量的比率。信号的平均TEO能量由以下等式定义：E _ signal = 1NΣΣ= 1 N [x 2（n） - x（n + 1）x（n-1）] 。在这个方程式中，Ēsignal代表信号的平均TEO能量; N表示信号中的帧数; x（n）表示相对于第n帧的信号的幅度; x（n + 1）表示相对于第（n + 1）帧的信号的幅度; x（n-1）表示相对于第（n-1）帧的信号的幅度。

10. 发明申请

US20110099010A1 MULTI-CHANNEL NOISE SUPPRESSION SYSTEM 审中-公开
标题翻译：多通道噪声抑制系统
公开(公告)号：US20110099010A1
公开(公告)日：2011-04-28
申请号：US12706874
申请日：2010-02-17
申请人： Xianxian Zhang
发明人： Xianxian Zhang
IPC分类号： G10L15/20
CPC分类号： G10L25/78 , G10L21/0272 , G10L2021/02165 , G10L2025/786
摘要： Techniques are described herein that provide multi-channel noise suppression based on a Teager energy ratio. A Teager energy ratio is a ratio of an average Teager energy operator (TEO) energy of a first signal to an average TEO energy of a second signal. The average TEO energy of a signal is defined by the equation: E _ signal = 1 N  ∑ i = 1 N   [ x 2  ( n ) - x  ( n + 1 )  x  ( n - 1 ) ] . In this equation, Ēsignal represents the average TEO energy of the signal; N represents the number of frames in the signal; x(n) represents a magnitude of the signal with respect to an nth frame; x(n+1) represents a magnitude of the signal with respect to an (n+1)th frame; and x(n−1) represents a magnitude of the signal with respect to an (n−1)th frame.
摘要翻译：本文描述了基于Teager能量比提供多通道噪声抑制的技术。 Teager能量比是第一信号的平均Teager能量算子（TEO）能量与第二信号的平均TEO能量的比率。信号的平均TEO能量由以下等式定义：E _ signal = 1NΣΣ= 1 N（n + 1）x（n-1） ]。在这个方程式中，Ēsignal代表信号的平均TEO能量; N表示信号中的帧数; x（n）表示相对于第n帧的信号的幅度; x（n + 1）表示相对于第（n + 1）帧的信号的幅度; x（n-1）表示相对于第（n-1）帧的信号的幅度。

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