公开(公告)号：US20160300584A1

公开(公告)日：2016-10-13

申请号：US15190424

申请日：2016-06-23

Applicant: ClearOne, Inc.

Inventor： Ashutosh Pandey ,  Darrin T. Thurston ,  David K. Lambert ,  Tracy A. Bathurst

IPC: G10L21/0264 ,  H04R3/00

CPC classification number: H04R1/406 ,  G10K11/178 ,  G10L21/0208 ,  G10L21/0232 ,  G10L21/0264 ,  G10L2021/02082 ,  G10L2021/02166 ,  H04M3/568 ,  H04M9/082 ,  H04R3/005 ,  H04R29/007 ,  H04R2201/401 ,  H04R2201/403 ,  H04R2203/12 ,  H04R2430/20 ,  H04R2430/23 ,  H04R2499/11

Abstract: The present disclosure discloses a conferencing apparatus that combines a beamforming microphone array (BMA) with an acoustic echo canceller where the BMA further comprises a plurality of microphones that are oriented to develop a corresponding plurality of microphone signals. The apparatus further includes a processor, memory, and storage where the processor is configured to execute program instructions. The processor performs a beamforming operation to create a plurality of combined signals. In addition, the processor performs an acoustic echo cancellation operation to generate a plurality of combined echo cancelled signals. Further, the processor selects one of the combined echo cancelled signals for transmission to the far end where the signal selection module uses the far end signal as information to inhibit the signal selection module from changing the selection of the combined echo cancelled signals while only the far end signal is active.

Abstract translation: 本公开公开了一种会议装置，其将波束成形麦克风阵列（BMA）与声学回声消除器组合在一起，其中BMA还包括多个麦克风，其被定向成开发相应的多个麦克风信号。 该装置还包括处理器，存储器和存储器，其中处理器被配置为执行程序指令。 处理器执行波束形成操作以产生多个组合信号。 此外，处理器执行声回波消除操作以产生多个组合的回声消除信号。 此外，处理器选择组合回波消除信号中的一个以发送到远端，其中信号选择模块使用远端信号作为信息，以阻止信号选择模块改变组合回波消除信号的选择，而只有远端 结束信号有效。

公开(公告)号：US09438985B2

公开(公告)日：2016-09-06

申请号：US13631716

申请日：2012-09-28

Applicant: Sorin V. Dusan ,  Esge B. Andersen ,  Aram Lindahl ,  Andrew P. Bright

Inventor： Sorin V. Dusan ,  Esge B. Andersen ,  Aram Lindahl ,  Andrew P. Bright

IPC: H04R1/10 ,  H04R1/40 ,  H04R3/00

CPC classification number: H04R1/1083 ,  H04R1/1016 ,  H04R1/406 ,  H04R3/005 ,  H04R2201/403 ,  H04R2410/01 ,  H04R2410/05 ,  H04R2460/13

Abstract: A method of detecting a user's voice activity in a headset with a microphone array is described herein. The method starts with a voice activity detector (VAD) generating a VAD output based on acoustic signals received from microphones included in a pair of earbuds and the microphone array included on a headset wire and data output by an accelerometer that is included in the pair of earbuds. A noise suppressor may then receive the acoustic signals from the microphone array and the VAD output and suppress the noise included in the acoustic signals received from the microphone array based on the VAD output. The method may also include steering one or more beamformers based on the VAD output. Other embodiments are also described.

Abstract translation: 本文描述了在具有麦克风阵列的耳机中检测用户的语音活动的方法。 该方法从语音活动检测器（VAD）开始，其基于从一对耳塞中包括的麦克风接收的声信号和包括在耳机导线上的麦克风阵列产生VAD输出，并且由包括在耳机线中的加速度计输出的数据 耳塞 然后，噪声抑制器可以从麦克风阵列和VAD输出接收声信号，并且基于VAD输出抑制从麦克风阵列接收的声信号中包括的噪声。 该方法还可以包括基于VAD输出来操纵一个或多个波束形成器。 还描述了其它实施例。

公开(公告)号：US20160157016A1

公开(公告)日：2016-06-02

申请号：US14557019

申请日：2014-12-01

Applicant: Sonos, Inc.

Inventor： Mike Chamness ,  Aurelio Rafael Ramos ,  Timothy Sheen ,  Hilmar Lehnert

IPC: H04R3/04

CPC classification number: H04R3/04 ,  H04R1/403 ,  H04R2201/403 ,  H04R2203/12 ,  H04R2205/024 ,  H04R2227/005 ,  H04S1/002 ,  H04S3/002

Abstract: An example method is performed by a media playback system comprising a plurality of audio drivers having a first radiation pattern. The method includes receiving data representing audio content, where each datum of the data indicates (i) a frequency and (ii) an amplitude corresponding to the frequency. The method further includes, for each audio driver of the plurality of audio drivers, determining a transfer function; processing each datum of the data based on (i) the frequency indicated by the given datum and (ii) the determined transfer function; and providing, to the given audio driver, a respective signal representing the data processed for the given audio driver, thereby causing the plurality of audio drivers to play back the audio content according to a second radiation pattern that is different from the first radiation pattern. An example media playback system and an example non-transitory computer-readable medium related to the example method is also disclosed herein.

Abstract translation: 一种示例性方法由包括具有第一辐射图案的多个音频驱动器的媒体播放系统执行。 该方法包括接收表示音频内容的数据，其中数据的每个数据指示（i）频率和（ii）与频率对应的幅度。 所述方法还包括：对于所述多个音频驱动器的每个音频驱动器，确定传递函数; 基于（i）由给定数据指示的频率和（ii）确定的传递函数来处理数据的每个数据; 以及向给定音频驱动器提供表示针对给定音频驱动器处理的数据的相应信号，从而使多个音频驱动器根据与第一辐射图案不同的第二辐射图来播放音频内容。 本文还公开了与示例方法相关的示例性媒体回放系统和示例性非暂时性计算机可读介质。

公开(公告)号：US09264806B2

公开(公告)日：2016-02-16

申请号：US13665143

申请日：2012-10-31

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kyung Hak Hyun ,  Jin Sung Kim

IPC: H04R3/00 ,  G01S3/808

CPC classification number: H04R3/005 ,  G01S3/8083 ,  H04R2201/403 ,  H04R2430/23

Abstract: Disclosed are an apparatus and a method for tracking locations of a plurality of sound sources. According to the apparatus and the method, a task for searching sound source candidates is repeated at respective predetermined frames of microphone signals to collect sound source candidates, and only the collected sound source candidates are verified through beamforming, thereby more rapidly and accurately tracking the plurality of sound sources in spite of using a small number of microphones.

Abstract translation: 公开了一种用于跟踪多个声源的位置的装置和方法。 根据该装置和方法，在麦克风信号的各个预定帧处重复搜索声源候选的任务以收集声源候选，并且仅通过波束形成验证所收集的声源候选，从而更快速和准确地跟踪多个 的声源，尽管使用少量的麦克风。

公开(公告)号：US20150358707A1

公开(公告)日：2015-12-10

申请号：US14654481

申请日：2013-10-24

Applicant: SONY CORPORATION

Inventor： Nobuhiro SAIJO ,  Satoshi AKAGAWA ,  Hiroshi SATO

IPC: H04R1/02 ,  F21V33/00 ,  H05B37/02 ,  F21V23/04

CPC classification number: H04R1/028 ,  F21V23/0442 ,  F21V33/0056 ,  F21Y2101/00 ,  F21Y2115/10 ,  G10H1/40 ,  G10H2220/081 ,  G11B27/28 ,  G11B27/34 ,  H04R2201/403 ,  H05B33/086 ,  H05B37/0236

Abstract: Provided is a sound reproduction device including: speakers; light emitting elements provided to a part of each of the speakers, or in a vicinity of each of the speakers; a detecting section configured to detect a beat of an audio signal reproduced by the speakers, and output a detection signal corresponding to the beat; and a light emission control signal outputting section configured to output a light emission control signal for controlling a light emission mode of the light emitting elements according to the detection signal. The light emission control signal outputting section outputs a first light emission control signal according to the detection signal, and outputs a second light emission control signal when a period in which the beat is not detected exceeds a set period, the second light emission control signal being for controlling the light emitting elements to perform a predetermined light emission mode.

Abstract translation: 提供了一种声音再现装置，包括：扬声器; 提供给每个扬声器的一部分或每个扬声器附近的发光元件; 检测部，被配置为检测由扬声器再现的音频信号的拍子，并输出与拍子对应的检测信号; 以及发光控制信号输出部，被配置为根据检测信号输出用于控制发光元件的发光模式的发光控制信号。 发光控制信号输出部根据检测信号输出第一发光控制信号，当未检测到拍子的周期超过设定期间时，输出第二发光控制信号，第二发光控制信号为 用于控制发光元件执行预定的发光模式。

公开(公告)号：US09129587B2

公开(公告)日：2015-09-08

申请号：US13814559

申请日：2012-04-10

Applicant: Song Liu ,  Bo Li

Inventor： Song Liu ,  Bo Li

IPC: H04B15/00 ,  G10K11/00 ,  H04R3/00 ,  G10L21/0208 ,  G10L21/0216

CPC classification number: G10K11/002 ,  G10L21/0208 ,  G10L2021/02166 ,  H04R3/005 ,  H04R2201/403 ,  H04R2201/405

Abstract: To solve the problems with the prior art that a multi-microphone array cannot inhibit broad-band noises well and cannot be used in the increasingly widespread broad-band communication, embodiments of the present invention disclose a method, a device and a system for eliminating noises with multi-microphone array. The method according to an embodiment of the present invention comprises according to the number of different spacings between each of pairs of microphones of the multi-microphone array, dividing a full frequency band into the same number of sub-bands; decomposing signals of each of the pairs of microphones with the different spacings into a corresponding one of the sub-bands, wherein the larger the spacing between each pair of microphones is, the lower the frequencies of the sub-band into which the signals of the pair of microphones are decomposed will be; adaptively reducing the noises in the decomposed signals of each of the pairs of microphones with the different spacings in the corresponding sub-band to obtain noise-reduced signals for each of the sub-bands; and synthesizing the noise-reduced signals of each of the sub-bands to obtain a signal in which the noises have been reduced with the multi-microphone array in the full frequency band. The embodiments of the present invention can be used in scenarios of hands-free video calls.

Abstract translation: 为了解决现有技术的问题，多麦克风阵列不能很好地抑制宽带噪声，并且不能用于越来越广泛的宽带通信中，本发明的实施例公开了一种方法，装置和用于消除 多麦克风阵列噪音。 根据本发明的实施例的方法包括根据多麦克风阵列的每对麦克风之间的不同间隔的数量，将全频带划分成相同数量的子带; 将具有不同间隔的每对麦克风的每个麦克风的信号分解为相应的一个子带，其中每对麦克风之间的间隔越大，子带的频率越低， 一对麦克风会被分解; 以相应子带中的不同间隔自适应地减少每对麦克风的分解信号中的噪声，以获得每个子带的噪声降低信号; 并且合成每个子频带的噪声降低信号，以获得在全频带中的多麦克风阵列已经降低了噪声的信号。 本发明的实施例可以用于免提视频通话的场景中。

公开(公告)号：US20150181329A1

公开(公告)日：2015-06-25

申请号：US14411980

申请日：2012-08-06

Applicant: Takashi Mikami ,  Tomoharu Awano

Inventor： Takashi Mikami ,  Tomoharu Awano

IPC: H04R1/40 ,  H04R3/00

CPC classification number: H04R1/40 ,  H04R3/00 ,  H04R3/005 ,  H04R2201/403 ,  H04R2499/13

Abstract: A beam-forming device includes a first target sound blocker 103 and a second target sound blocker 104 that remove a target signal having a correlation mutually from a first sound signal x1 and a second sound signal x2 which are converted by first and second microphones 101 and 102, a phase synchronizer 105 that synchronizes the phases of the first sound signal x1 and the second sound signal x2 and synthesizes these sound signals by using information acquired when the first target sound blocker 103 removes the target signal, and a noise learner 106 that learns a noise component included in an output signal of the phase synchronizer 105 from signals from which the target signal is removed by the first target sound blocker 103 and the second target sound blocker 104.

Abstract translation: 波束形成装置包括：第一目标声音阻挡器103和第二目标声音阻挡器104，其从由第一和第二麦克风101转换的第一声音信号x1和第二声音信号x2相互相互移除相关的目标信号;以及 102是相位同步器105，其使第一声音信号x1和第二声音信号x2的相位同步，并且通过使用当第一目标声音阻挡器103去除目标信号时获取的信息来合成这些声音信号;以及噪音学习者106， 来自相位同步器105的输出信号的噪声分量来自第一目标声音阻挡器103和第二目标声音阻挡器104从目标信号去除的信号。

公开(公告)号：US20150163577A1

公开(公告)日：2015-06-11

申请号：US13816430

申请日：2012-12-04

Applicant: Jacob Benesty ,  Jingdong Chen

Inventor： Jacob Benesty ,  Jingdong Chen

IPC: H04R1/08 ,  H04R3/04

CPC classification number: H04R3/04 ,  H04R1/08 ,  H04R1/406 ,  H04R3/005 ,  H04R2201/403 ,  H04R2430/03 ,  H04R2430/21

Abstract: A differential microphone array (DMA) is provided that includes a number (M) of microphone sensors for converting a sound to a number of electrical signals and a processor that is configured to apply linearly-constrained minimum variance filters on the electrical signals over a time window to calculate frequency responses of the electrical signals over a plurality of subbands and sum the frequency responses of the electrical signals for each subband to calculate an estimated frequency spectrum of the sound.

Abstract translation: 提供差分麦克风阵列（DMA），其包括用于将声音转换为多个电信号的麦克风传感器的数量（M），以及经配置以在一段时间内在电信号上应用线性约束的最小方差滤波器的处理器 窗口以计算多个子带上的电信号的频率响应，并且对每个子带的电信号的频率响应求和，以计算声音的估计频谱。

公开(公告)号：US20150131840A1

公开(公告)日：2015-05-14

申请号：US14522963

申请日：2014-10-24

Applicant: AUDIO PIXELS LTD.

Inventor： Yuval COHEN ,  Daniel LEWIN ,  Shay KAPLAN ,  Alex SROMIN ,  Meir BEN SIMON

IPC: H04R1/00

CPC classification number: H04R1/005 ,  H02K41/03 ,  H02K2201/18 ,  H02N13/00 ,  H04R1/403 ,  H04R3/007 ,  H04R3/12 ,  H04R2201/403 ,  H04R2203/12 ,  H04R2460/03 ,  Y10T29/49005

Abstract: An actuation system for generating a physical effect, the system comprising at least one array of translating elements each constrained to travel alternately back and forth along a respective axis, toward first and second extreme positions respectively, in response to activation of first and second forces respectively; and a controller operative to use the first and second forces to selectably latch at least one subset of said translating elements into the first and second extreme positions respectively.

Abstract translation: 一种用于产生物理效应的致动系统，所述系统包括至少一个平移元件阵列，每个转移元件被分别围绕相应的轴线交替地前后移动，分别朝向第一和第二极限位置的第一和第二极限位置 ; 以及控制器，其操作以使用所述第一和第二力分别可选地将所述平移元件的至少一个子集锁定到所述第一和第二极限位置。

公开(公告)号：US08981994B2

公开(公告)日：2015-03-17

申请号：US13307852

申请日：2011-11-30

Applicant: Karsten Vandborg Sorenson

Inventor： Karsten Vandborg Sorenson

IPC: H01Q3/01 ,  H01Q3/44 ,  G10K11/34 ,  H04R1/40 ,  H04R3/00 ,  G10L21/0216 ,  G10L15/22 ,  G10L21/0208

CPC classification number: G10K11/34 ,  G10L2015/225 ,  G10L2021/02082 ,  G10L2021/02161 ,  H04R1/406 ,  H04R3/005 ,  H04R2201/403 ,  H04R2430/23

Abstract: Mobile device, method and computer program product for processing signals at the mobile device. The signals are received at a plurality of signal sensors of the mobile device. Motion of the mobile device is sensed and the received signals are processed using beamforming means at the mobile device, in dependence upon their direction of arrival at the plurality of signal sensors and in dependence upon the sensed motion of the mobile device.

Abstract translation: 用于在移动设备处理信号的移动设备，方法和计算机程序产品。 在移动设备的多个信号传感器处接收信号。 感测移动设备的运动，并且根据其到达多个信号传感器的方向并且依赖于感测到的移动设备的运动，在移动设备处使用波束成形装置来处理所接收的信号。