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1. 发明授权

US08724823B2 Method and apparatus for reducing noise pumping due to noise suppression and echo control interaction 有权
标题翻译：用于减少由噪声抑制和回波控制相互作用引起的噪声抽吸的方法和装置
公开(公告)号：US08724823B2
公开(公告)日：2014-05-13
申请号：US13112962
申请日：2011-05-20
申请人： Andrew John MacDonald , Jan Skoglund , Björn Volcker
发明人： Andrew John MacDonald , Jan Skoglund , Björn Volcker
IPC分类号： H04B3/20
CPC分类号： G10L21/0208 , G10L25/18 , G10L2021/02082 , H04M9/082
摘要： An input signal is processed through noise suppression (NS) and echo control (EC) via a multipath model that reduces noise pumping effects while maintaining EC performance. A copy of a “noisy” input signal is sent to an EC component before the noisy signal is sent to a NS component, which processes the signal first, when there is a consistent noise level for estimation. The copy of the pre-processing noisy signal is sent to the EC component along with a “clean” or “noise-suppressed” signal output from the NS component. The EC component analyzes the noisy signal as if the EC was the first component in the signal chain to determine what actions to take. The EC component then applies these actions to the clean signal received from the NS component.
摘要翻译：通过噪声抑制（NS）和回波控制（EC）通过多径模型处理输入信号，可以在保持EC性能的同时降低噪声泵浦效应。在噪声信号被发送到NS分量之前，“噪声”输入信号的副本被发送到EC分量，该NS分量首先处理信号，当存在用于估计的一致的噪声电平时。预处理噪声信号的副本与从NS分量输出的“干净”或“噪声抑制”信号一起发送到EC分量。 EC组件分析噪声信号，就好像EC是信号链中的第一个组件，以确定采取什么行动。 EC组件然后将这些动作应用于从NS组件接收的干净信号。

2. 发明授权

US08320577B1 Method and apparatus for multi-channel audio processing using single-channel components 有权
标题翻译：使用单通道组件进行多声道音频处理的方法和装置
公开(公告)号：US08320577B1
公开(公告)日：2012-11-27
申请号：US13112958
申请日：2011-05-20
申请人： Andrew John MacDonald , Jan Skoglund , Björn Volcker
发明人： Andrew John MacDonald , Jan Skoglund , Björn Volcker
IPC分类号： H03B29/00 , H04M9/08 , H04B3/20
CPC分类号： H04M9/08 , G10L19/008 , G10L2021/02082
摘要： Processing multi-channel audio streams using one or more arrangements of single-channel components. Components that only process the near-end, or capture stream, such as noise suppression (NS) components, are limited in how they can be suitably arranged for processing multi-channel streams. However, components that process the near-end stream using one or more inputs from the far-end, or render stream, such as acoustic echo cancellation (AEC) and automatic gain control (AGC) components, are arranged in one or more of the ways suitable for use with multiple channels.
摘要翻译：使用单通道组件的一个或多个排列来处理多声道音频流。仅处理近端或捕获流（例如噪声抑制（NS））组件的组件在如何适当地布置用于处理多信道流的方面受到限制。然而，使用来自远端的一个或多个输入或诸如声学回声消除（AEC）和自动增益控制（AGC））组件的渲染流来处理近端流的组件被布置在一个或多个适合多个渠道使用的方式。

3. 发明申请

US20120296657A1 METHOD AND APPARATUS FOR MULTI-CHANNEL AUDIO PROCESSING USING SINGLE-CHANNEL COMPONENTS 有权
标题翻译：使用单通道组件进行多通道音频处理的方法和设备
公开(公告)号：US20120296657A1
公开(公告)日：2012-11-22
申请号：US13112958
申请日：2011-05-20
申请人： Andrew John MACDONALD , Jan Skoglund , Björn Volcker
发明人： Andrew John MACDONALD , Jan Skoglund , Björn Volcker
IPC分类号： G10L21/00
CPC分类号： H04M9/08 , G10L19/008 , G10L2021/02082
摘要： Processing multi-channel audio streams using one or more arrangements of single-channel components. Components that only process the near-end, or capture stream, such as noise suppression (NS) components, are limited in how they can be suitably arranged for processing multi-channel streams. However, components that process the near-end stream using one or more inputs from the far-end, or render stream, such as acoustic echo cancellation (AEC) and automatic gain control (AGC) components, are arranged in one or more of the ways suitable for use with multiple channels.
摘要翻译：使用单通道组件的一个或多个排列来处理多声道音频流。仅处理近端或捕获流（例如噪声抑制（NS））组件的组件在如何适当地布置用于处理多信道流的方面受到限制。然而，使用来自远端的一个或多个输入或诸如声学回声消除（AEC）和自动增益控制（AGC））组件的渲染流来处理近端流的组件被布置在一个或多个适合多个渠道使用的方式。

4. 发明申请

US20120294453A1 METHOD AND APPARATUS FOR REDUCING NOISE PUMPING DUE TO NOISE SUPPRESSION AND ECHO CONTROL INTERACTION 有权
公开(公告)号：US20120294453A1
公开(公告)日：2012-11-22
申请号：US13345351
申请日：2012-01-06
申请人： Andrew John MacDonald , Jan Skoglund , Björn Volcker
发明人： Andrew John MacDonald , Jan Skoglund , Björn Volcker
IPC分类号： H04B3/20
CPC分类号： G10L21/0208 , G10L25/18 , G10L2021/02082 , H04M9/082
摘要： An input signal is processed through noise suppression (NS) and echo control (EC) via a multipath model that reduces noise pumping effects while maintaining EC performance. A copy of a “noisy” input signal is sent to an EC component before the noisy signal is sent to a NS component, which processes the signal first, when there is a consistent noise level for estimation. The copy of the pre-processing noisy signal is sent to the EC component along with a “clean” or “noise-suppressed” signal output from the NS component. The EC component analyzes the noisy signal as if the EC was the first component in the signal chain to determine what actions to take. The EC component then applies these actions to the clean signal received from the NS component.

5. 发明授权

US08983085B2 Method and apparatus for reducing noise pumping due to noise suppression and echo control interaction 有权
标题翻译：用于减少由噪声抑制和回波控制相互作用引起的噪声抽吸的方法和装置
公开(公告)号：US08983085B2
公开(公告)日：2015-03-17
申请号：US13345351
申请日：2012-01-06
申请人： Andrew John MacDonald , Jan Skoglund , Björn Volcker
发明人： Andrew John MacDonald , Jan Skoglund , Björn Volcker
IPC分类号： H04B3/20 , G10L21/0208 , H04M9/08 , G10L25/18
CPC分类号： G10L21/0208 , G10L25/18 , G10L2021/02082 , H04M9/082
摘要： An input signal is processed through noise suppression (NS) and echo control (EC) via a multipath model that reduces noise pumping effects while maintaining EC performance. A copy of a “noisy” input signal is sent to an EC component before the noisy signal is sent to a NS component, which processes the signal first, when there is a consistent noise level for estimation. The copy of the pre-processing noisy signal is sent to the EC component along with a “clean” or “noise-suppressed” signal output from the NS component. The EC component analyzes the noisy signal as if the EC was the first component in the signal chain to determine what actions to take. The EC component then applies these actions to the clean signal received from the NS component.
摘要翻译：通过噪声抑制（NS）和回波控制（EC）通过多径模型处理输入信号，可以在保持EC性能的同时降低噪声泵浦效应。在噪声信号被发送到NS分量之前，“噪声”输入信号的副本被发送到EC分量，该NS分量首先处理信号，当存在用于估计的一致的噪声电平时。预处理噪声信号的副本与从NS分量输出的“干净”或“噪声抑制”信号一起发送到EC分量。 EC组件分析噪声信号，就好像EC是信号链中的第一个组件，以确定采取什么行动。 EC组件然后将这些动作应用于从NS组件接收的干净信号。

6. 发明申请

US20120294452A1 METHOD AND APPARATUS FOR REDUCING NOISE PUMPING DUE TO NOISE SUPPRESSION AND ECHO CONTROL INTERACTION 有权
标题翻译：用于减少噪声抑制和噪声控制相互作用的方法和装置
公开(公告)号：US20120294452A1
公开(公告)日：2012-11-22
申请号：US13112962
申请日：2011-05-20
申请人： Andrew John MACDONALD , Jan Skoglund , Björn Volcker
发明人： Andrew John MACDONALD , Jan Skoglund , Björn Volcker
IPC分类号： H04B3/20
CPC分类号： G10L21/0208 , G10L25/18 , G10L2021/02082 , H04M9/082
摘要： An input signal is processed through noise suppression (NS) and echo control (EC) via a multipath model that reduces noise pumping effects while maintaining EC performance. A copy of a “noisy” input signal is sent to an EC component before the noisy signal is sent to a NS component, which processes the signal first, when there is a consistent noise level for estimation. The copy of the pre-processing noisy signal is sent to the EC component along with a “clean” or “noise-suppressed” signal output from the NS component. The EC component analyzes the noisy signal as if the EC was the first component in the signal chain to determine what actions to take. The EC component then applies these actions to the clean signal received from the NS component.
摘要翻译：通过噪声抑制（NS）和回波控制（EC）通过多径模型处理输入信号，可以在保持EC性能的同时降低噪声泵浦效应。在噪声信号被发送到NS分量之前，噪声输入信号的副本被发送到EC分量，该NS分量首先处理信号，当存在用于估计的一致的噪声电平时。预处理噪声信号的副本与从NS分量输出的干净或噪声抑制的信号一起发送到EC分量。 EC组件分析噪声信号，就好像EC是信号链中的第一个组件，以确定采取什么行动。 EC组件然后将这些动作应用于从NS组件接收的干净信号。

7. 发明授权

US08233632B1 Method and apparatus for multi-channel audio processing using single-channel components 有权
公开(公告)号：US08233632B1
公开(公告)日：2012-07-31
申请号：US13244816
申请日：2011-09-26
申请人： Andrew John MacDonald , Jan Skoglund , Björn Volcker
发明人： Andrew John MacDonald , Jan Skoglund , Björn Volcker
IPC分类号： H03B29/00 , H04M9/08 , H04B3/20
CPC分类号： H04M9/08 , G10L19/008 , G10L2021/02082
摘要： Processing multi-channel audio streams using one or more arrangements of single-channel components. Components that only process the near-end, or capture stream, such as noise suppression (NS) components, are limited in how they can be suitably arranged for processing multi-channel streams. However, components that process the near-end stream using one or more inputs from the far-end, or render stream, such as acoustic echo cancellation (AEC) and automatic gain control (AGC) components, are arranged in one or more of the ways suitable for use with multiple channels.

8. 发明授权

US08428277B1 Clipping protection in fixed-width audio mixing 有权
标题翻译：剪切保护在固定宽度音频混合
公开(公告)号：US08428277B1
公开(公告)日：2013-04-23
申请号：US13271139
申请日：2011-10-11
申请人： Jan Skoglund , Andrew John MacDonald
发明人： Jan Skoglund , Andrew John MacDonald
IPC分类号： H03G3/00
CPC分类号： H03G11/00 , H03G7/002 , H03G7/007
摘要： A mixing system provides both clipping protection and signal level conservation while the system operates in the original width type. The mixing system includes a first input multiplier multiplying a first digital input signal by a first gain value to provide a first scaled signal, a second input multiplier multiplying a second digital input signal by the first gain value to provide a second scaled signal, a combiner combining the first scaled signal and the second scaled signal to provide a combined signal, a soft limiter soft limiting the combined signal by reducing some of the amplitudes of the combined signal to provide a soft limited signal, and an output multiplier multiplying the soft limited signal by a second gain value to provide a mixed output signal, wherein the first gain value is a value that is equal to an inverse value of the second gain value.
摘要翻译：当系统以原始宽度类型运行时，混合系统提供削波保护和信号电平保护。混合系统包括第一输入乘法器，将第一数字输入信号乘以第一增益值以提供第一缩放信号，第二输入乘法器将第二数字输入信号乘以第一增益值以提供第二缩放信号，组合器组合所述第一缩放信号和所述第二缩放信号以提供组合信号;软限幅器，通过减小所述组合信号的一些幅度以提供软限制信号来限制所述组合信号，以及输出乘法器将所述软限制信号通过第二增益值提供混合输出信号，其中第一增益值是等于第二增益值的反相值的值。

9. 发明授权

US09118296B2 Clipping protection in fixed-width audio mixing 有权
标题翻译：剪切保护在固定宽度音频混合
公开(公告)号：US09118296B2
公开(公告)日：2015-08-25
申请号：US13754555
申请日：2013-01-30
申请人： Jan Skoglund , Andrew John MacDonald
发明人： Jan Skoglund , Andrew John MacDonald
IPC分类号： H03G5/00 , H03G11/00
CPC分类号： H03G11/00 , H03G7/002 , H03G7/007
摘要： An apparatus provides both clipping protection and signal level conservation while the system operates in the original width type. The apparatus includes a first shifting unit right shifting a first digital input signal to provide a first shifted signal; a second shifting unit right shifting a second digital input signal to provide a second shifted signal; a combiner combining the first shifted signal and the second shifted signal to provide a combined signal; a soft limiter soft limiting the combined signal by reducing some of the amplitudes of the combined signal to provide a soft limited signal; and a third shifting unit left shifting the soft limited signal to provide an output signal.
摘要翻译：一种装置在系统以原始宽度类型运行时提供削波保护和信号电平保护。该装置包括第一移位单元，右移第一数字输入信号以提供第一移位信号; 第二移位单元右移第二数字输入信号以提供第二移位信号; 组合器，其组合第一移位信号和第二移位信号以提供组合信号; 软限幅器软通过减少组合信号的一些幅度来限制组合信号以提供软限制信号; 并且第三移位单元向左移动软限制信号以提供输出信号。

10. 发明授权

US08831249B1 Clipping protection in fixed-width audio mixing 有权
标题翻译：剪切保护在固定宽度音频混合
公开(公告)号：US08831249B1
公开(公告)日：2014-09-09
申请号：US13271123
申请日：2011-10-11
申请人： Jan Skoglund , Andrew John MacDonald
发明人： Jan Skoglund , Andrew John MacDonald
IPC分类号： H04B1/00 , H03G3/00
CPC分类号： H03G7/007
摘要： A mixing system provides both clipping protection and signal level conservation while the system operates in the original width type. The mixing system includes a first input multiplier multiplying a first digital input signal by a first gain value to provide a first scaled signal, a second input multiplier multiplying a second digital input signal by the first gain value to provide a second scaled signal, a combiner combining the first scaled signal and the second scaled signal to provide a combined signal, a soft limiter soft limiting the combined signal by reducing some of the amplitudes of the combined signal to provide a soft limited signal, and an output multiplier multiplying the soft limited signal by a second gain value to provide a mixed output signal, wherein the first gain value is a value that is equal to an inverse value of the second gain value.
摘要翻译：当系统以原始宽度类型运行时，混合系统提供削波保护和信号电平保护。混合系统包括第一输入乘法器，将第一数字输入信号乘以第一增益值以提供第一缩放信号，第二输入乘法器将第二数字输入信号乘以第一增益值以提供第二缩放信号，组合器组合所述第一缩放信号和所述第二缩放信号以提供组合信号;软限幅器，通过减小所述组合信号的一些幅度以提供软限制信号来限制所述组合信号，以及输出乘法器将所述软限制信号通过第二增益值提供混合输出信号，其中第一增益值是等于第二增益值的反相值的值。

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