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    Systems, methods, apparatus, and computer-readable media for orientation-sensitive recording control
    2.
    发明授权
    Systems, methods, apparatus, and computer-readable media for orientation-sensitive recording control 有权
    用于方向敏感记录控制的系统，方法，装置和计算机可读介质

    公开(公告)号：US09031256B2

    公开(公告)日：2015-05-12

    申请号：US13280211

    申请日：2011-10-24

    申请人： Erik Visser ,  Ian Ernan Liu ,  Dinesh Ramakrishnan ,  Lae-Hoon Kim ,  Pei Xiang

    发明人： Erik Visser ,  Ian Ernan Liu ,  Dinesh Ramakrishnan ,  Lae-Hoon Kim ,  Pei Xiang

    IPC分类号： H04R3/00 ,  H04R1/02 ,  H04R9/06 ,  H04S7/00

    CPC分类号： H04R3/005 ,  H04R2201/401 ,  H04R2201/403 ,  H04R2201/405 ,  H04R2430/21 ,  H04R2430/23 ,  H04S7/303 ,  H04S2400/15

    摘要： A method of orientation-sensitive recording control includes indicating, within a portable device and at a first time, that the portable device has a first orientation relative to a gravitational axis and, based on the indication, selecting a first pair among at least three microphone channels of the portable device. This method also includes indicating, within the portable device and at a second time that is different than the first time, that the portable device has a second orientation relative to the gravitational axis that is different than the first orientation and, based on the indication, selecting a second pair among the at least three microphone channels that is different than the first pair. In this method, each the at least three microphone channels is based on a signal produced by a corresponding one of at least three microphones of the portable device.

    摘要翻译： 方向敏感记录控制的方法包括在便携式设备内并且在第一时间指示便携式设备相对于重力轴具有第一取向，并且基于该指示，在至少三个麦克风中选择第一对 便携式设备的通道。 该方法还包括在便携式设备内并且在与第一次不同的第二时间指示便携式设备相对于不同于第一方位的重力轴具有第二定向，并且基于该指示， 在所述至少三个麦克风通​​道中选择与所述第一对不同的第二对。 在该方法中，每个至少三个麦克风通​​道基于由便携式设备的至少三个麦克风中的对应的一个产生的信号。

    Integrated echo cancellation and noise suppression
    5.
    发明授权
    Integrated echo cancellation and noise suppression 有权
    集成回声消除和噪声抑制

    公开(公告)号：US08811601B2

    公开(公告)日：2014-08-19

    申请号：US13079548

    申请日：2011-04-04

    申请人： Asif I. Mohammad ,  Kwokleung Chan ,  Ian Ernan Liu ,  Erik Visser ,  Dinesh Ramakrishnan

    发明人： Asif I. Mohammad ,  Kwokleung Chan ,  Ian Ernan Liu ,  Erik Visser ,  Dinesh Ramakrishnan

    IPC分类号： H04M9/08 ,  H04B3/23

    CPC分类号： H04B3/234 ,  G10L21/0208 ,  G10L2021/02082 ,  G10L2021/02166 ,  H04M9/082

    摘要： A method for echo cancellation and noise suppression is disclosed. Linear echo cancellation (LEC) is performed for a primary microphone channel on an entire frequency band or in a range of frequencies where echo is audible. LEC is performed on one or more secondary microphone channels only on a lower frequency range over which spatial processing is effective. The microphone channels are spatially processed over the lower frequency range after LEC. Non-linear noise suppression post-processing is performed on the entire frequency band. Echo post-processing is performed on the entire frequency band.

    摘要翻译： 公开了一种用于回波消除和噪声抑制的方法。 线性回波消除（LEC）是在整个频带上的主要麦克风通道或在可听见回声的频率范围内执行的。 只有在空间处理有效的较低频率范围上的一个或多个辅助麦克风通道上执行LEC。 麦克风通道在LEC之后的较低频率范围内进行空间处理。 在整个频带上执行非线性噪声抑制后处理。 在整个频带上执行回波后处理。

    BLIND SOURCE SEPARATION BASED SPATIAL FILTERING
    7.
    发明申请
    BLIND SOURCE SEPARATION BASED SPATIAL FILTERING 审中-公开
    基于盲源分离的空间滤波

    公开(公告)号：US20120294446A1

    公开(公告)日：2012-11-22

    申请号：US13370934

    申请日：2012-02-10

    申请人： Erik Visser ,  Lae-Hoon Kim ,  Pei Xiang

    发明人： Erik Visser ,  Lae-Hoon Kim ,  Pei Xiang

    IPC分类号： H04R5/00

    CPC分类号： H04S1/007 ,  H04S7/301 ,  H04S7/303 ,  H04S2420/01

    摘要： A method for blind source separation based spatial filtering on an electronic device includes obtaining a first source audio signal and a second source audio signal. The method also includes applying a blind source separation filter set to the first source audio signal and to the second source audio signal to produce a spatially filtered first audio signal and a spatially filtered second audio signal. The method further includes playing the spatially filtered first audio signal over a first speaker to produce an acoustic spatially filtered first audio signal and playing the spatially filtered second audio signal over a second speaker to produce an acoustic spatially filtered second audio signal. The acoustic spatially filtered first audio signal and the acoustic spatially filtered second audio signal produce an isolated acoustic first source audio signal at a first position and an isolated acoustic second source audio signal at a second position.

    摘要翻译： 一种用于在电子设备上进行基于盲源分离的空间滤波的方法包括获得第一源音频信号和第二源音频信号。 该方法还包括将盲源分离滤波器组应用于第一源音频信号和第二源音频信号以产生经空间滤波的第一音频信号和经空间滤波的第二音频信号。 该方法还包括通过第一扬声器播放经空间滤波的第一音频信号以产生声学空间滤波的第一音频信号，并通过第二扬声器播放经空间滤波的第二音频信号，以产生声学空间滤波的第二音频信号。 声空间滤波的第一音频信号和声学空间滤波的第二音频信号在第一位置处产生隔离的声学第一源音频信号，并在第二位置处产生隔离的声学第二源音频信号。

    Automated user/sensor location recognition to customize audio performance in a distributed multi-sensor environment
    9.
    发明授权
    Automated user/sensor location recognition to customize audio performance in a distributed multi-sensor environment 有权
    自动用户/传感器位置识别，可在分布式多传感器环境中自定义音频性能

    公开(公告)号：US09408011B2

    公开(公告)日：2016-08-02

    申请号：US13476815

    申请日：2012-05-21

    申请人： Lae-Hoon Kim ,  Pei Xiang ,  Erik Visser

    发明人： Lae-Hoon Kim ,  Pei Xiang ,  Erik Visser

    IPC分类号： H04R29/00 ,  H04S7/00 ,  H04R1/32 ,  H04R3/12

    CPC分类号： H04S7/303 ,  H04R1/323 ,  H04R3/12 ,  H04R29/002 ,  H04R2430/20 ,  H04S7/301 ,  H04S7/302

    摘要： A wireless device is provided that makes use of other nearby audio transducer devices to generate a surround sound effect for a targeted user. To do this, the wireless device first ascertains whether there are any nearby external microphones and/or loudspeaker devices. An internal microphone for the wireless device and any other nearby external microphones may be used to ascertain a location of the desired/targeted user as well as the nearby loudspeaker devices. This information is then used to generate a surround sound effect for the desired/targeted user by having the wireless device steer audio signals to its internal loudspeakers and/or the nearby external loudspeaker devices.

    摘要翻译： 提供了一种无线设备，其利用其他附近的音频传感器设备来为目标用户产生环绕声效果。 为此，无线设备首先确定是否存在附近的外部麦克风和/或扬声器设备。 用于无线设备和任何其他附近的外部麦克风的内部麦克风可以用于确定期望/目标用户以及附近的扬声器设备的位置。 然后，该信息用于通过使无线设备将音频信号转向其内部扬声器和/或附近的外部扬声器设备来为期望/目标用户生成环绕声效果。

    AUTOMATED USER/SENSOR LOCATION RECOGNITION TO CUSTOMIZE AUDIO PERFORMANCE IN A DISTRIBUTED MULTI-SENSOR ENVIRONMENT
    10.
    发明申请
    AUTOMATED USER/SENSOR LOCATION RECOGNITION TO CUSTOMIZE AUDIO PERFORMANCE IN A DISTRIBUTED MULTI-SENSOR ENVIRONMENT 有权
    自动用户/传感器位置识别在分布式多传感器环境中自定义音频性能

    公开(公告)号：US20130156198A1

    公开(公告)日：2013-06-20

    申请号：US13476815

    申请日：2012-05-21

    申请人： Lae-Hoon Kim ,  Pei Xiang ,  Erik Visser

    发明人： Lae-Hoon Kim ,  Pei Xiang ,  Erik Visser

    IPC分类号： H04R5/00

    CPC分类号： H04S7/303 ,  H04R1/323 ,  H04R3/12 ,  H04R29/002 ,  H04R2430/20 ,  H04S7/301 ,  H04S7/302

    摘要： A wireless device is provided that makes use of other nearby audio transducer devices to generate a surround sound effect for a targeted user. To do this, the wireless device first ascertains whether there are any nearby external microphones and/or loudspeaker devices. An internal microphone for the wireless device and any other nearby external microphones may be used to ascertain a location of the desired/targeted user as well as the nearby loudspeaker devices. This information is then used to generate a surround sound effect for the desired/targeted user by having the wireless device steer audio signals to its internal loudspeakers and/or the nearby external loudspeaker devices.

    摘要翻译： 提供了一种无线设备，其利用其他附近的音频传感器设备来为目标用户产生环绕声效果。 为此，无线设备首先确定是否存在附近的外部麦克风和/或扬声器设备。 用于无线设备和任何其他附近的外部麦克风的内部麦克风可以用于确定期望/目标用户以及附近的扬声器设备的位置。 然后，该信息用于通过使无线设备将音频信号转向其内部扬声器和/或附近的外部扬声器设备来为期望/目标用户生成环绕声效果。