公开(公告)号：US20160192066A1

公开(公告)日：2016-06-30

申请号：US14960232

申请日：2015-12-04

Applicant: STAGES PCS, LLC

Inventor： Benjamin D. Benattar

IPC: H04R1/32 ,  H04R3/00 ,  G01P15/18 ,  H04R1/02

CPC classification number: G01P15/18 ,  H04R1/1008 ,  H04R1/1041 ,  H04R1/406 ,  H04R2201/023 ,  H04R2201/401 ,  H04R2201/405 ,  H04R2430/20 ,  H04R2460/07

Abstract: A multi-directional sensor may include a microphone array of three or more microphones mounted on outerwear. The microphone array may be positioned and configured so that its far field azimuth sensing range is unobstructed by the outerwear. An accelerometer may be provided and mounted in a location which is fixed with respect to the microphones of the microphone array. A beacon, such as an ultrasonic transmitter or BLE (Bluetooth Low Energy) transmitter may be associated with or attached to the outerwear. The microphone array may be utilized with a beam-forming system in order to determine location of an audio source and a beam-steering system in order to isolate audio emanating from the direction of the audio source. The beam-forming system is suitable for tracking the movement of the audio source in order to inform the beam-steering system of the direction or location to be isolated. Because the microphone array will move with a user, a motion sensor may be provided to reduce the computational resources required for tracking and isolation by allowing compensation for change in position and orientation of the user. The beacon will facilitate location of the wearer.

Abstract translation: 多向传感器可以包括安装在外衣上的三个或更多个麦克风的麦克风阵列。 麦克风阵列可以被定位和配置，使得其远场方位感测范围不被外衣阻挡。 可以提供加速度计并将其安装在相对于麦克风阵列的麦克风固定的位置。 诸如超声波发射器或BLE（蓝牙低能量）发射器的信标可以与外衣相关联或连接到外衣。 麦克风阵列可以与波束形成系统一起使用，以便确定音频源和波束转向系统的位置，以隔离从音频源的方向发出的音频。 波束形成系统适用于跟踪音频源的移动，以便向波束转向系统通知待隔离的方向或位置。 由于麦克风阵列将与用户一起移动，可以提供运动传感器以通过允许对用户的位置和取向的改变进行补偿来减少跟踪和隔离所需的计算资源。 灯塔将有助于佩戴者的位置。

公开(公告)号：US20160173978A1

公开(公告)日：2016-06-16

申请号：US15049515

申请日：2016-02-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Haiting Li ,  Deming Zhang

IPC: H04R1/40 ,  G10L21/02

CPC classification number: H04R1/406 ,  G10L21/02 ,  G10L21/0205 ,  G10L2021/02082 ,  G10L2021/02166 ,  H04R2201/025 ,  H04R2201/405 ,  H04R2430/21

Abstract: An audio signal processing method and apparatus and a differential beamforming method and apparatus to resolve a problem that an existing audio signal processing system cannot process audio signals in multiple application scenarios at the same time. The method includes determining a super-directional differential beamforming weighting coefficient, acquiring an audio input signal and determining a current application scenario and an audio output signal, acquiring, a weighting coefficient corresponding to the current application scenario, performing super-directional differential beamforming processing on the audio input signal using the acquired weighting coefficient in order to obtain a super-directional differential beamforming signal in the current application scenario, and performing processing on the formed signal to obtain a final audio signal required by the current application scenario. By using this method, a requirement that different application scenarios require different audio signal processing manners can be met.

Abstract translation: 一种用于解决现有音频信号处理系统在多个应用场景中不能同时处理音频信号的问题的音频信号处理方法和装置以及差分波束形成方法和装置。 该方法包括：确定超方向差分波束成形加权系数，获取音频输入信号并确定当前应用场景和音频输出信号，获取与当前应用场景相对应的加权系数，执行超向导差分波束成形处理 使用所获取的加权系数的音频输入信号，以便在当前应用场景中获得超方向的差分波束形成信号，并且对形成的信号执行处理以获得当前应用场景所需的最终音频信号。 通过使用该方法，可以满足不同应用场景需要不同音频信号处理方式的要求。

公开(公告)号：US20160165342A1

公开(公告)日：2016-06-09

申请号：US14960228

申请日：2015-12-04

Applicant: STAGES PCS, LLC

Inventor： Benjamin D. Benattar

IPC: H04R1/40 ,  G01S3/80 ,  H04R1/02

CPC classification number: H04R1/406 ,  G01S3/8006 ,  G01S3/801 ,  G01S3/8083 ,  H04R1/1008 ,  H04R2201/023 ,  H04R2201/405

Abstract: A multi-directional sensor may include a microphone array of three or more microphones mounted on a protective headgear. The microphone array may be positioned and configured so that its far field azimuth sensing range is unobstructed by the protective headgear. An accelerometer may be provided and mounted in a location which is fixed with respect to the microphones of the microphone array. A beacon, such as an ultrasonic transmitter or BLE (Bluetooth Low Energy) transmitter may be associated with or attached to the protective headgear. The microphone array may be utilized with a beam-forming system in order to determine location of an audio source and a beam-steering system in order to isolate audio emanating from the direction of the audio source. The beam-forming system is suitable for tracking the movement of the audio source in order to inform the beam-steering system of the direction or location to be isolated. Because the microphone array will move with a user, a motion sensor may be provided to reduce the computational resources required for tracking and isolation by allowing compensation for change in position and orientation of the user. The beacon will facilitate location of the wearer.

Abstract translation: 多方向传感器可以包括安装在保护性头饰上的三个或更多个麦克风的麦克风阵列。 麦克风阵列可以被定位和配置，使得其远场方位感测范围被保护性头盔所阻挡。 可以提供加速度计并将其安装在相对于麦克风阵列的麦克风固定的位置。 诸如超声波发射机或BLE（蓝牙低能量）发射机的信标可以与保护性头盔相关联或附着于保护性头盔。 麦克风阵列可以与波束形成系统一起使用，以便确定音频源和波束转向系统的位置，以隔离从音频源的方向发出的音频。 波束形成系统适用于跟踪音频源的移动，以便向波束转向系统通知待隔离的方向或位置。 由于麦克风阵列将与用户一起移动，可以提供运动传感器以通过允许对用户的位置和取向的改变进行补偿来减少跟踪和隔离所需的计算资源。 灯塔将有助于佩戴者的位置。

公开(公告)号：US20160165340A1

公开(公告)日：2016-06-09

申请号：US14827320

申请日：2015-08-15

Applicant: STAGES PCS, LLC

Inventor： Benjamin D. Benattar

IPC: H04R1/40 ,  H04R3/00

CPC classification number: H04R29/006 ,  H04R1/1008 ,  H04R1/406 ,  H04R3/005 ,  H04R5/027 ,  H04R5/033 ,  H04R2201/401 ,  H04R2201/405 ,  H04R2430/21

Abstract: An audio source location, tracking and isolation system, particularly suited for use with person-mounted microphone arrays. The system increases capabilities by reducing resources required for certain functions so those resources can be utilized for result enhancing processes. A wide area scan may be utilized to identify the general vicinity of an audio source and a narrow scan to locate pinpoint positions may be initiated in the general vicinity identified by the wide area scan. Subsequent locations may be anticipated by compensating for motion of the sensor array and anticipated changes in source location by trajectory. Identification may use two or more sets of characterizations and rules. The characterizations may use computationally less intense analyses to characterize audio and only perform computationally higher intensity analysis if needed. Rule sets may be used to eliminate the need to track audio sources that emit audio to be eliminated from an audio output.

Abstract translation: 音频源位置，跟踪和隔离系统，特别适合与人装麦克风阵列一起使用。 该系统通过减少某些功能所需的资源来增加功能，从而可以将这些资源用于结果增强过程。 可以利用广域扫描来识别音频源的一般附近，并且可以在由广域扫描所识别的一般附近中开始定位精确位置的窄扫描。 可以通过补偿传感器阵列的运动和通过轨迹预测的源位置变化来预期后续位置。 识别可能使用两套或更多组的特征和规则。 表征可能使用计算上较不强烈的分析来表征音频，并且仅在需要时才执行计算上较高的强度分析。 可以使用规则集来消除对从音频输出发出要消除的音频的音频源的跟踪的需要。

公开(公告)号：US20160157010A1

公开(公告)日：2016-06-02

申请号：US14904637

申请日：2014-09-11

Applicant: Helmut OELLERS ,  ADVANCED ACOUSTIC SF GMBH

Inventor： Helmut Oellers ,  Frank Stefan Schmidt

IPC: H04R1/40 ,  H04R1/02 ,  H04R1/36

CPC classification number: H04R1/403 ,  H04R1/02 ,  H04R1/026 ,  H04R1/36 ,  H04R27/00 ,  H04R2201/025 ,  H04R2201/401 ,  H04R2201/405 ,  H04S2420/13

Abstract: A variable device for directing sound wavefronts. In one example, individual housings including sound transducers can be shifted relative to one another in such a way that a wavefront adapted to the respective reproduction requirements can be produced. This configuration can be re-designed by mechanically shifting the individual elements of the variable device again.

Abstract translation: 用于引导声波的可变设备。 在一个示例中，包括声音换能器的单个外壳可以相对于彼此移动，使得可以产生适应于各个再现要求的波前。 可以通过再次机械地移动可变装置的各个元件来重新设计该配置。

公开(公告)号：US20160088392A1

公开(公告)日：2016-03-24

申请号：US14956005

申请日：2015-12-01

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Anu Hannele Huttunen ,  Jorma Juhani Makinen

IPC: H04R5/027 ,  H04R1/26 ,  H04R1/32 ,  H04R3/00

CPC classification number: H04R5/027 ,  H04R1/265 ,  H04R1/326 ,  H04R3/005 ,  H04R2201/405 ,  H04R2203/12 ,  H04R2430/03

Abstract: An apparatus for providing directional audio capture may include a processor and memory storing executable computer program code that cause the apparatus to at least perform operations including assigning at least one beam direction, among a plurality of beam directions, in which to direct directionality of an output signal of one or more microphones. The computer program code may further cause the apparatus to divide microphone signals of the microphones into selected frequency subbands wherein an analysis performed. The computer program code may further cause the apparatus to select at least one set of microphones of the apparatus for selected frequency subbands. The computer program code may further cause the apparatus to optimize the assigned at least one beam direction by adjusting a beamformer parameter(s) based on the selected set of microphones and at least one of the selected frequency subbands. Corresponding methods and computer program products are also provided.

Abstract translation: 一种用于提供定向音频捕获的装置可以包括处理器和存储器，其存储可执行的计算机程序代码，该程序代码使得该装置至少执行操作，包括在多个波束方向之间分配至少一个波束方向， 一个或多个麦克风的信号。 计算机程序代码还可以使设备将麦克风的麦克风信号分成所选择的频率子带，其中进行分析。 计算机程序代码还可以使设备选择用于所选频率子带的装置的至少一组麦克风。 计算机程序代码还可以使得设备通过基于所选择的麦克风组和所选择的频率子带中的至少一个来调整波束形成器参数来优化所分配的至少一个波束方向。 还提供了相应的方法和计算机程序产品。

公开(公告)号：US20150350782A1

公开(公告)日：2015-12-03

申请号：US14822950

申请日：2015-08-11

Applicant: Robert Bosch GmbH

Inventor： John Matthew Muza ,  Philip Sean Stetson

IPC: H04R3/00 ,  G10K11/178

CPC classification number: H03F3/187 ,  G10K11/178 ,  H03F3/45928 ,  H04R1/406 ,  H04R3/005 ,  H04R19/005 ,  H04R2201/003 ,  H04R2201/405

Abstract: Methods and system are described for cancelling interference in a microphone system. A positive bias voltage is applied to a first microphone diaphragm and a negative bias voltage is applied to a second microphone diaphragm. The diaphragms are configured to exhibit substantially the same mechanical deflection in response to acoustic pressures received by the microphone system. A differential output signal is produced by combining a positively-biased output signal from the first microphone diaphragm and a negatively-biased output signal from the second microphone diaphragm. This combining cancels common-mode interferences that are exhibited in both the positively-biased output signal and the negatively-biased output signal.

Abstract translation: 描述了消除麦克风系统干扰的方法和系统。 正偏置电压施加到第一麦克风隔膜，负偏置电压施加到第二麦克风隔膜。 隔膜被构造为响应于由麦克风系统接收的声压而表现出基本相同的机械偏转。 通过组合来自第一麦克风隔膜的正偏置输出信号和来自第二麦克风隔膜的负偏置输出信号来产生差分输出信号。 该组合取消了在正偏置输出信号和负偏置输出信号两者中呈现的共模干扰。

公开(公告)号：US20150341734A1

公开(公告)日：2015-11-26

申请号：US14721235

申请日：2015-05-26

Applicant: Vladimir Sherman

Inventor： Vladimir Sherman

IPC: H04R29/00 ,  G01S3/80 ,  G10K11/16

CPC classification number: H04R3/005 ,  G01S3/8006 ,  G02C11/06 ,  G02C11/10 ,  G06F3/013 ,  G06F3/165 ,  G10K11/16 ,  G10K11/341 ,  G10L2021/02166 ,  H04R1/028 ,  H04R1/1083 ,  H04R1/406 ,  H04R3/12 ,  H04R5/033 ,  H04R25/407 ,  H04R25/43 ,  H04R29/005 ,  H04R2201/405 ,  H04R2225/43 ,  H04R2410/01 ,  H04R2430/21 ,  H04R2499/15

Abstract: Disclosed are methods, circuits, devices, systems and associated computer executable code for acquiring, processing and rendering acoustic signals. According to some embodiments, one or more direction specific audio signals may be generated using a microphone array comprising two or more microphones and an audio stream generator. The audio stream generator may receive a direction parameter from an optical tracking system. There may be provided an audio rendering system adapted to normalize and/or balance acoustic signals acquired from a soundscape.

Abstract translation: 公开了用于获取，处理和渲染声信号的方法，电路，设备，系统和相关联的计算机可执行代码。 根据一些实施例，可以使用包括两个或多个麦克风和音频流发生器的麦克风阵列来生成一个或多个方向特定音频信号。 音频流发生器可以从光学跟踪系统接收方向参数。 可以提供适于使从声景获取的声信号归一化和/或平衡的音频再现系统。

公开(公告)号：US20150334498A1

公开(公告)日：2015-11-19

申请号：US14652909

申请日：2013-12-17

Applicant: Panamax35 LLC

Inventor： Eliot Maxwell Case

IPC: H04R29/00 ,  H04R1/08

CPC classification number: H04R29/004 ,  H04R1/08 ,  H04R9/08 ,  H04R2201/405 ,  H04R2430/25

Abstract: A higher-order acoustical pressure measurement device (e.g., microphone) is disclosed. The device includes a first acoustic pressure measurement from a generally concentrated spatial location and a second acoustic pressure measurement having a spatiality greater than the concentrated spatial location of the first acoustic pressure measurement and at least one destructive interference signal. The destructive interference signal is characterized at least in part by the spatiality of the second acoustic pressure measurement. A higher-order microphone includes sensor elements configured to provide a destructive interference signal such that interference at one sensor element is configured to lower the destructive interference signal for the primary direction of directivity from a source signal.

Abstract translation: 公开了一种更高级的声压测量装置（例如麦克风）。 该装置包括来自一般集中的空间位置的第一声压测量和具有大于第一声压测量的集中空间位置的空间性和至少一个相消干涉信号的第二声压测量。 破坏性干扰信号至少部分地由第二声压测量的空间特性表征。 高阶麦克风包括被配置为提供相消干涉信号的传感器元件，使得一个传感器元件处的干扰被配置为从源信号降低主要方向方向的相消干涉信号。

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。