公开(公告)号：US20140105416A1

公开(公告)日：2014-04-17

申请号：US13652167

申请日：2012-10-15

Applicant: Anu Hannele Huttunen ,  Jorma Juhani Mäkinen

Inventor： Anu Hannele Huttunen ,  Jorma Juhani Mäkinen

IPC: 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：US20130101141A1

公开(公告)日：2013-04-25

申请号：US13654135

申请日：2012-10-17

Applicant: Wave Sciences Corporation

Inventor： James Keith McElveen

IPC: H02B1/00

CPC classification number: H04S3/002 ,  H04R1/406 ,  H04R2201/401 ,  H04R2201/405

Abstract: A directional transducer array system comprising a plurality of transducers with mathematical sequence spacing mounted on an array tile or host device. In an embodiment, the invention allows the construction of a receiving or transmitting, tiled (modular) directional audio array while simultaneously retaining desirable directional characteristics, improving gain, and limiting negative impacts on side lobe attenuation as the array is scaled (i.e. identical or similar tiles are added to or subtracted from the array); and allows the construction of a receiving or transmitting directional audio array that is light weight and robust enough to be used in body-worn, body-carried, vehicular, and fixed installations.

Abstract translation: 一种定向传感器阵列系统，包括安装在阵列瓦片或主机设备上的具有数学序列间隔的多个换能器。 在一个实施例中，本发明允许构造接收或传输的平铺（模块化）定向音频阵列，同时保持期望的方向特性，改善增益，并且限制对阵列缩放（即相同或相似的）的旁瓣衰减的负面影响 瓷砖加入或从数组中减去）; 并且允许构造重量轻且足够坚固的接收或发送定向音频阵列以用于身体穿戴，车身，车辆和固定设备中。

公开(公告)号：US20130101136A1

公开(公告)日：2013-04-25

申请号：US13654225

申请日：2012-10-17

Applicant: James Keith McElveen

Inventor： James Keith McElveen

IPC: H04R3/00

CPC classification number: H04R1/02 ,  H04R1/1083 ,  H04R3/005 ,  H04R25/405 ,  H04R2201/023 ,  H04R2201/405 ,  H04R2430/23

Abstract: A wearable microphone array apparatus and system used as a directional audio system and as an assisted listening device. The present invention advances hearing aids and assisted listening devices to allow construction of a highly directional audio array that is wearable, natural sounding, and convenient to direct, as well as to provide directional cues to users who have partial or total loss of hearing in one or both ears. The advantages of the invention include simultaneously providing high gain, high directivity, high side lobe attenuation, and consistent beam width; providing significant beam forming at lower frequencies where substantial noises are present, particularly in noisy, reverberant environments; and allowing construction of a cost effective body-worn or body-carried directional audio device.

Abstract translation: 一种可穿戴式麦克风阵列装置和系统，用作定向音频系统和辅助聆听装置。 本发明促进了助听器和辅助听音装置，以便构建一种高度方向性的音频阵列，其具有穿戴性，自然发声性和便于直接的特性，以及向在一个或多个听觉部分或完全丧失听力的用户提供方向线索 或双耳。 本发明的优点包括同时提供高增益，高方向性，高旁瓣衰减和一致的波束宽度; 在较低频率处提供显着的波束形成，其中存在显着的噪声，特别是在噪声，混响环境中; 并允许建造具有成本效益的身体穿戴或身体携带的定向音频设备。

公开(公告)号：US08300839B2

公开(公告)日：2012-10-30

申请号：US12302653

申请日：2007-05-24

Applicant: Toshiaki Ishibashi ,  Ryo Tanaka ,  Satoshi Ukai

Inventor： Toshiaki Ishibashi ,  Ryo Tanaka ,  Satoshi Ukai

IPC: H04R29/00

CPC classification number: H04R1/406 ,  H04R1/403 ,  H04R27/00 ,  H04R2201/403 ,  H04R2201/405

Abstract: A level ratio calculation circuit calculates average signal level data of signal level data corresponding to each sound collection beam signal, and calculates a level ratio between the average signal level data and each of the signal level data. Since a diffraction sound is substantially equal to all the signal level data, a diffraction sound component of the average signal level data also becomes substantially equal. On the other hand, a collection sound from a speaker is specific to the signal level data of the corresponding sound collection beam signal. Therefore, at the level ratio, the portion corresponding to the diffraction sound is flat and a data level becomes high locally in only the portion corresponding to the collection sound. By using this, the sound collection beam signal including the collection sound is detected.

Abstract translation: 电平比计算电路计算与每个声音采集束信号相对应的信号电平数据的平均信号电平数据，并且计算平均信号电平数据与每个信号电平数据之间的电平比。 由于衍射声音基本上等于所有信号电平数据，平均信号电平数据的衍射声分量也变得基本相等。 另一方面，来自扬声器的收集声音特定于对应的声音采集束信号的信号电平数据。 因此，在电平比上，对应于衍射声的部分是平坦的，并且数据电平仅在与收集声音对应的部分中局部变高。 通过使用它，检测包括收集声音的声音采集束信号。

公开(公告)号：US20120093344A1

公开(公告)日：2012-04-19

申请号：US13263461

申请日：2010-04-09

Applicant: Haohai Sun ,  Shefeng Yan ,  U. Peter Svensson

Inventor： Haohai Sun ,  Shefeng Yan ,  U. Peter Svensson

IPC: H04R3/00 ,  H04B1/02

CPC classification number: H04R3/005 ,  H04M3/56 ,  H04R1/406 ,  H04R3/02 ,  H04R2201/401 ,  H04R2201/405 ,  H04R2430/03 ,  H04R2430/25

Abstract: A method of forming a beampattern in a beamformer of the type in which the beamformer receives input signals from a sensor array, decomposes the input signals into the spherical harmonics domain, applies weighting coefficients to the spherical harmonics and combines them to form an output signal, wherein the weighting coefficients are optimized for a given set of input parameters by convex optimization. Formulations are provided for forming second order cone programming constraints for multiple main lobe generation, uniform and non-uniform side lobe control, automatic null steering, robustness and white noise gain.

Abstract translation: 在波束形成器接收来自传感器阵列的输入信号的波束形成器中形成波束形成器的方法，将输入信号分解成球面谐波域，将加权系数应用于球谐函数并组合起来形成输出信号， 其中通过凸优化针对给定的一组输入参数优化加权系数。 提供了用于形成用于多个主瓣生成，均匀和不均匀旁瓣控制，自动零转向，鲁棒性和白噪声增益的二阶锥编程约束的配方。

公开(公告)号：US20120093336A1

公开(公告)日：2012-04-19

申请号：US12904921

申请日：2010-10-14

Applicant: Amir Said ,  Bowon Lee ,  Ton Kalker

Inventor： Amir Said ,  Bowon Lee ,  Ton Kalker

IPC: H04R3/00

CPC classification number: G10L25/78 ,  G01S5/18 ,  H04R3/005 ,  H04R2201/405

Abstract: Systems and methods for performing sound source localization are provided. In one aspect, a method for locating a sound source using a computing device subdivides a space into subregions. The method then computes a sound source power for each of subregions and determines which of the sound source energies is the largest. When the volume of the subregion is less than a threshold volume, the method outputs the subregion having the largest sound source power. Otherwise, the stages of partitioning, computing, and determining the subregion having the largest sound source power is repeated.

Abstract translation: 提供了用于执行声源定位的系统和方法。 一方面，使用计算设备定位声源的方法将空间细分为子区域。 该方法然后计算每个子区域的声源功率，并确定哪个声源能量最大。 当该子区域的音量小于阈值音量时，该方法输出具有最大声源功率的子区域。 否则，重复分区，计算和确定具有最大声源功率的子区域的阶段。

公开(公告)号：US20100158268A1

公开(公告)日：2010-06-24

申请号：US12637444

申请日：2009-12-14

Applicant: Trygve Frederik MARTON ,  Lennart Burenius

Inventor： Trygve Frederik MARTON ,  Lennart Burenius

IPC: H04R3/00

CPC classification number: H04R3/005 ,  H04N7/142 ,  H04R2201/405

Abstract: A video teleconferencing directional microphone includes two microphone elements arranged coincidentally on a vertical axis. The two microphone elements are placed on a supporting surface so that a first microphone element is on the surface, and the second microphone elements are elevated above the supporting surface. The directional microphone also includes filters, an adder assembly, and an equalizer, which are used to shape the directivity pattern of the directional microphone into a toroid sensitivity pattern. The toroid sensitivity pattern increases sensitivity in the direction of a sound source of interest, while simultaneously reduces sensitivity to any sound waves generated by noise sources from certain elevation angles.

Abstract translation: 视频电话会议定向麦克风包括在垂直轴上巧合布置的两个麦克风元件。 两个麦克风元件被放置在支撑表面上，使得第一麦克风元件在表面上，并且第二麦克风元件在支撑表面上方升高。 定向麦克风还包括滤波器，加法器组件和均衡器，其用于将定向麦克风的方向性图案成形为环形灵敏度图案。 环形灵敏度图案增加了感兴趣的声源方向的灵敏度，同时降低了由某些仰角产生的噪声源产生的声波的灵敏度。

公开(公告)号：US20100142733A1

公开(公告)日：2010-06-10

申请号：US12634054

申请日：2009-12-09

Applicant: Jung-woo CHOI ,  Young-tae Kim ,  Jung-ho Kim ,  Sang-chul Ko

Inventor： Jung-woo CHOI ,  Young-tae Kim ,  Jung-ho Kim ,  Sang-chul Ko

IPC: H04R5/02

CPC classification number: H04R3/12 ,  H04R1/345 ,  H04R1/403 ,  H04R2201/403 ,  H04R2201/405 ,  H04R2203/12 ,  H04R2430/25

Abstract: An apparatus and method for generating directional sound are provided to output sound towards a specific sound zone. The apparatus includes an internal loudspeaker array having at least one sound source and edge loudspeakers, each with a sound source having directivity, located at respective ends of the internal loudspeaker array.

Abstract translation: 提供用于产生定向声音的装置和方法，用于向特定声音区输出声音。 该装置包括具有至少一个声源和边缘扬声器的内部扬声器阵列，每个声源和边缘扬声器各自具有位于内部扬声器阵列的相应端部处的方向性的声源。

公开(公告)号：US20090052684A1

公开(公告)日：2009-02-26

申请号：US12162934

申请日：2007-01-17

Applicant: Toshiaki Ishibashi

Inventor： Toshiaki Ishibashi

IPC: H04B3/20

CPC classification number: H04R3/12 ,  H04R1/403 ,  H04R1/406 ,  H04R3/005 ,  H04R3/02 ,  H04R2201/403 ,  H04R2201/405 ,  H04R2430/20

Abstract: Microphones arranged in an array shape along a longitudinal direction are respectively formed in both the longitudinal side surfaces of a housing 2 with substantially an elongated rectangular parallelepiped shape, and speakers arranged in an array shape along the longitudinal direction are formed in a lower surface. The speaker array forms sound emission beams based on sound emission directivity set according to a conference environment. On the other hand, when the microphone array forms sound collection beams by sound collection signals collected, a talker direction is detected from these beams and an output sound signal corresponding to this direction is formed and also is reflected on setting of the sound emission directivity. Also, when there are plural input sound signals, the sound emission directivity is set according to a use situation of the plural input sound signals.

Abstract translation: 在壳体2的纵向侧表面上分别形成有沿纵向方向排列成阵列形状的麦克风，并且沿着纵向排列成阵列形状的扬声器形成在下表面。 扬声器阵列基于根据会议环境设定的声音发射方向，形成发声束。 另一方面，当麦克风阵列通过收集的声音收集信号形成声音采集波束时，从这些波束检测到讲话者方向，并且形成与该方向相对应的输出声音信号，并且也在声音发射方向性的设置上反映。 此外，当存在多个输入声音信号时，根据多个输入声音信号的使用情况设定声音发射方向性。

公开(公告)号：US07471799B2

公开(公告)日：2008-12-30

申请号：US10499915

申请日：2002-06-21

Applicant: Joachim Neumann ,  Søren Laugesen

Inventor： Joachim Neumann ,  Søren Laugesen

IPC: H04R25/00

CPC classification number: G10L21/0208 ,  G10L2021/02166 ,  H04R25/407 ,  H04R2201/403 ,  H04R2201/405

Abstract: Method of noise reduction in a hearing aid or a listening device to be used by a hearing impaired person in which the noise reduction is provided primarily in the frequency range wherein the hearing impaired has the smallest hearing loss or the best hearing.

Abstract translation: 助听器或听力装置中的降噪的方法主要在听力障碍者具有最小的听力损失或最佳听力的频率范围内由听力受损的人使用，其中降低噪音。