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1.发明公开MULTI-CHANNEL ECHO CANCELLATION AND NOISE SUPPRESSION 有权MEHRFACHKANAL-ECHOUNTERDRÜCKUNGUNDGERÄUSCHUNTERDRÜCKUNG
公开(公告)号：EP2992668A1
公开(公告)日：2016-03-09
申请号：EP14726292.7
申请日：2014-04-23
IPC分类号： H04M9/08
摘要： A method for multi-channel echo cancellation and noise suppression is described. One of multiple echo estimates is selected for non-linear echo cancellation. Echo notch masking is performed on a noise-suppressed signal based on an echo direction of arrival (DOA) to produce an echo-suppressed signal. Non-linear echo cancellation is performed on the echo-suppressed signal based, at least in part, on the selected echo estimate.
摘要翻译： 描述了一种用于多通道回波消除和噪声抑制的方法。 选择多个回波估计中的一个用于非线性回波消除。 基于回波到达方向（DOA）对噪声抑制信号进行回波陷波掩蔽，以产生回波抑制信号。 至少部分地基于所选择的回波估计，对回波抑制信号执行非线性回波消除。
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公开(公告)号：EP3231166B1
公开(公告)日：2019-12-11
申请号：EP15794726.8
申请日：2015-10-29
发明人： GUPTA, Samir Kumar , MOHAMMAD, Asif Iqbal , VISSER, Erik , KIM, Lae-Hoon , VAN DYKEN, Shaun William
IPC分类号： H04M9/08 , H04R27/00 , G10L21/0216 , G10L21/0208
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公开(公告)号：EP2965496A1
公开(公告)日：2016-01-13
申请号：EP14708428.9
申请日：2014-02-20
IPC分类号： H04M9/08 , G10L21/0208
CPC分类号： G10K11/16 , G10L21/0216 , H04M9/082
摘要： Apparatus and methods for audio noise attenuation are disclosed. An audio signal analyzer can determine whether an input audio signal received from a microphone device includes a noise signal having identifiable content. If there is a noise signal having identifiable content, a content source is accessed to obtain a copy of the noise signal. An audio canceller can generate a processed audio signal, having an attenuated noise signal, based on comparing the copy of the noise signal to the input audio signal. Additionally or alternatively, data may be communicated on a communication channel to a separate media device to receive at least a portion of the copy of the noise signal from the separate media device, or to receive content-identification data corresponding to the content source.
摘要翻译： 公开了用于音频噪声衰减的装置和方法。 音频信号分析器可以确定从麦克风设备接收的输入音频信号是否包括具有可识别内容的噪声信号。 如果存在具有可识别内容的噪声信号，则访问内容源以获得噪声信号的副本。 基于将噪声信号的副本与输入音频信号进行比较，音频消除器可以产生具有衰减噪声信号的已处理音频信号。 另外或替代地，数据可以在通信信道上传送到单独的媒体设备，以从分离的媒体设备接收噪声信号的副本的至少一部分，或者接收对应于内容源的内容标识数据。
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公开(公告)号：EP3230915B1
公开(公告)日：2018-10-03
申请号：EP15821196.1
申请日：2015-12-12
发明人： VAN DYKEN, Shaun William , VISSER, Erik , MOHAMMAD, Asif Iqbal , GUPTA, Samir Kumar , KIM, Lae-Hoon , NARAYANASWAMY, Sreekanth , TON, Phuong
CPC分类号： G07C9/00158 , G06F21/32 , G06K9/00288 , G06K9/00335 , H04R3/005
摘要： A system includes a memory configured to store data associated with a service that is available. The system also includes a microphone associated with an acoustic space and configured to receive an audio input produced by a person. The system further includes a sensor located within the acoustic space and configured to detect vibrations produced by the person. The system includes a processor coupled to the memory, to the microphone, and to the sensor. The processor is configured to conditionally authorize execution of the service requested by the person, the service conditionally authorized based on the audio input and the vibrations.
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5.发明公开CALIBRATION OF ACOUSTIC ECHO CANCELATION FOR MULTI-CHANNEL SOUND IN DYNAMIC ACOUSTIC ENVIRONMENTS 审中-公开动态声学环境中多通道声的回声消除标定
公开(公告)号：EP3284272A1
公开(公告)日：2018-02-21
申请号：EP16712578.0
申请日：2016-03-01
CPC分类号： H04S7/301 , G10K11/16 , H04M9/082 , H04R5/04 , H04R2499/13 , H04S2400/09
摘要： A multi-channel sound (MCS) system features intelligent calibration (e.g., of acoustic echo cancellation (AEC)) for use in dynamic acoustic environments. A sensor subsystem is utilized to detect and identify changes in the acoustic environment and determine a “scene” corresponding to the resulting acoustic characteristics for that environment. This detected scene is compared to predetermined scenes corresponding to the acoustic environment. Each predetermined scene has a corresponding pre-tuned filter configuration for optimal AEC performance. Based on the results of the comparison, the pre-tuned filter configuration corresponding to the predetermined scene that most closely matches the detected scene is utilized by the AEC subsystem of the multi-channel sound system.
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6.发明公开FEEDBACK CANCELATION FOR ENHANCED CONVERSATIONAL COMMUNICATIONS IN SHARED ACOUSTIC SPACE 审中-公开共享声场中强化对话通信的反馈取消
公开(公告)号：EP3230977A1
公开(公告)日：2017-10-18
申请号：EP15791196.7
申请日：2015-10-29
IPC分类号： G10K11/178 , G10L21/02 , H04R3/02 , H04R5/02 , H04S7/00
CPC分类号： G10K11/178 , G10L21/02 , G10L2021/02082 , H04M9/082 , H04R3/02 , H04R5/02 , H04R27/00 , H04R2227/009 , H04R2499/13 , H04S7/00 , H04S7/302
摘要： A crosstalk cancelation technique reduces feedback in a shared acoustic space by canceling out some or all parts of sound signals that would otherwise be produced by a loudspeaker to only be captured by a microphone that, recursively, would cause these sounds signals to be reproduced again on the loudspeaker as feedback. Crosstalk cancelation can be used in a multichannel acoustic system (MAS) comprising an arrangement of microphones, loudspeakers, and a processor to together enhance conversational speech between in a shared acoustic space. To achieve crosstalk cancelation, a processor analyzes the inputs of each microphone, compares it to the output of far loudspeaker(s) relative to each such microphone, and cancels out any portion of a sound signal received by the microphone that matches signals that were just produced by the far loudspeaker(s) and sending only the remaining sound signal (if any) to such far loudspeakers.
摘要翻译： 串扰消除技术通过消除声音信号的一些或全部部分来减少共享声学空间中的反馈，所述声音信号否则将由扬声器产生，以便仅由麦克风捕获，所述麦克风递归地将导致这些声音信号再次被再现 扬声器作为反馈。 串音消除可用于包括麦克风，扬声器和处理器在内的多声道声学系统（MAS），以共同增强共享声学空间之间的对话语音。 为了实现串扰消除，处理器分析每个麦克风的输入，将其与每个这样的麦克风的远扬声器的输出进行比较，并且消除由麦克风接收到的匹配信号的声音信号的任何部分 由远端扬声器产生并且仅将剩余的声音信号（如果有的话）发送到这样的远端扬声器。
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公开(公告)号：EP2992668B1
公开(公告)日：2018-02-21
申请号：EP14726292.7
申请日：2014-04-23
IPC分类号： H04M9/08
摘要： A method for multi-channel echo cancellation and noise suppression is described. One of multiple echo estimates is selected for non-linear echo cancellation. Echo notch masking is performed on a noise-suppressed signal based on an echo direction of arrival (DOA) to produce an echo-suppressed signal. Non-linear echo cancellation is performed on the echo-suppressed signal based, at least in part, on the selected echo estimate.
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公开(公告)号：EP2965496B1
公开(公告)日：2018-01-03
申请号：EP14708428.9
申请日：2014-02-20
IPC分类号： H04M9/08 , G10L21/0208
CPC分类号： G10K11/16 , G10L21/0216 , H04M9/082
摘要： Apparatus and methods for audio noise attenuation are disclosed. An audio signal analyzer can determine whether an input audio signal received from a microphone device includes a noise signal having identifiable content. If there is a noise signal having identifiable content, a content source is accessed to obtain a copy of the noise signal. An audio canceller can generate a processed audio signal, having an attenuated noise signal, based on comparing the copy of the noise signal to the input audio signal. Additionally or alternatively, data may be communicated on a communication channel to a separate media device to receive at least a portion of the copy of the noise signal from the separate media device, or to receive content-identification data corresponding to the content source.
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公开(公告)号：EP3231166A1
公开(公告)日：2017-10-18
申请号：EP15794726.8
申请日：2015-10-29
发明人： GUPTA, Samir Kumar , MOHAMMAD, Asif Iqbal , VISSER, Erik , KIM, Lae-Hoon , VAN DYKEN, Shaun William
IPC分类号： H04M9/08 , G10K11/178 , G10L21/0208
摘要： A multichannel acoustic system (MAS) comprises an arrangement of microphones and loudspeakers and a multichannel acoustic processor (MAP) to together enhance conversational speech between two or more persons in a shared acoustic space such as an automobile. The enhancements are achieved by receiving sound signals substantially originating from relatively near sound sources; filtering the sound signals to cancel at least one echo signal detected for at least one microphone from among the plurality of microphones; filtering the sound signals received by the plurality of microphones to cancel at least one feedback signal detected for at least one microphone from among the plurality of microphones; and reproducing the filtered sound signals for each microphone from among the plurality of microphones on a subset of loudspeakers corresponding that are relatively far from the source microphone.
摘要翻译： 多声道声学系统（MAS）包括麦克风和扬声器的布置以及多声道声学处理器（MAP），以共同增强诸如汽车的共享声学空间中的两个或更多个人之间的会话语音。 通过接收基本上源自相对近的声源的声音信号来实现增强; 对所述声音信号进行滤波以消除为所述多个麦克风中的至少一个麦克风检测到的至少一个回声信号; 对由所述多个麦克风接收的声音信号进行滤波以消除为所述多个麦克风中的至少一个麦克风检测到的至少一个反馈信号; 以及在距离源麦克风较远的对应扬声器的子集上再现多个麦克风中的每个麦克风的滤波后的声音信号。
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公开(公告)号：EP3230915A1
公开(公告)日：2017-10-18
申请号：EP15821196.1
申请日：2015-12-12
发明人： VAN DYKEN, Shaun William , VISSER, Erik , MOHAMMAD, Asif Iqbal , GUPTA, Samir Kumar , KIM, Lae-Hoon , NARAYANASWAMY, Sreekanth , TON, Phuong
IPC分类号： G06F21/32
CPC分类号： G07C9/00158 , G06F21/32 , G06K9/00288 , G06K9/00335 , H04R3/005
摘要： A system includes a memory configured to store data associated with a service that is available. The system also includes a microphone associated with an acoustic space and configured to receive an audio input produced by a person. The system further includes a sensor located within the acoustic space and configured to detect vibrations produced by the person. The system includes a processor coupled to the memory, to the microphone, and to the sensor. The processor is configured to conditionally authorize execution of the service requested by the person, the service conditionally authorized based on the audio input and the vibrations.
摘要翻译： 系统包括被配置为存储与可用服务相关联的数据的存储器。 该系统还包括与声学空间关联并被配置为接收由人产生的音频输入的麦克风。 该系统还包括位于声学空间内并被配置成检测由人产生的振动的传感器。 该系统包括耦合到存储器，麦克风和传感器的处理器。 处理器被配置为有条件地授权人员所请求的服务的执行，该服务基于音频输入和振动被有条件地授权。
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