公开(公告)号：US20110216907A1

公开(公告)日：2011-09-08

申请号：US12852967

申请日：2010-08-09

Applicant: William Berardi ,  Michael Dublin ,  Hilmar Lehnert ,  Michael W. Stark ,  Guy Torio

Inventor： William Berardi ,  Michael Dublin ,  Hilmar Lehnert ,  Michael W. Stark ,  Guy Torio

IPC: H04R5/00

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

Abstract: An audio system including a left input channel signal, a right input channel signal, and a discrete center input channel. Circuitry removes correlated content from the left input channel signal and the right input channel signal and inserts the correlated content into the center input channel signal to provide a modified left input channel signal, a modified right input channel signal, and a modified center input channel signal. The modified left input channel signal is radiated by a directional loudspeaker so that radiation in a direction toward a listening area is less than radiation in other directions. The modified right channel input channel signal is radiated by a directional loudspeaker so that radiation in a direction toward a listening area is less than radiation in other directions.

Abstract translation: 包括左输入声道信号，右输入声道信号和离散中心输入声道的音频系统。 电路从左输入通道信号和右输入通道信号中除去相关内容，并将相关内容插入中心输入通道信号，以提供修改后的左输入通道信号，修改后的右输入通道信号和修改后的中心输入通道信号 。 修改的左输入通道信号由定向扬声器辐射，使得朝向收听区域的方向上的辐射小于其它方向上的辐射。 经修改的右声道输入声道信号由定向扬声器辐射，使得朝向收听区域的方向的辐射小于其它方向上的辐射。

公开(公告)号：US08009841B2

公开(公告)日：2011-08-30

申请号：US11701629

申请日：2007-02-02

Applicant: Markus Christoph

Inventor： Markus Christoph

IPC: H04R3/00

CPC classification number: H04R3/005 ,  H04R1/406 ,  H04R2201/401 ,  H04R2201/403 ,  H04R2201/405 ,  H04R2430/23 ,  H04R2430/25 ,  H04R2499/13

Abstract: A handsfree communication system includes microphones, a beamformer, and filters. The microphones are spaced apart and are capable of receiving acoustic signals. The beamformer compensates for propagation delays between the direct and reflected acoustic signals. The filters are configured to a predetermined susceptibility level. The filter process the output of the beamformer to enhance the quality of the received signals.

Abstract translation: 免提通信系统包括麦克风，波束形成器和滤波器。 麦克风间隔开并且能够接收声信号。 波束形成器补偿直接和反射声信号之间的传播延迟。 过滤器被配置为预定的敏感度水平。 滤波器处理波束形成器的输出以增强接收信号的质量。

公开(公告)号：US20100202628A1

公开(公告)日：2010-08-12

申请号：US12595082

申请日：2008-07-09

Applicant: Jens M. Meyer ,  Gary W. Elko

Inventor： Jens M. Meyer ,  Gary W. Elko

IPC: H04R3/00

CPC classification number: H04R3/005 ,  H04R1/406 ,  H04R2201/401 ,  H04R2201/405 ,  H04R2410/01 ,  H04R2430/20

Abstract: In one embodiment, an audio system has a microphone array and a signal processing subsystem that processes audio signals generated by the microphone array to produce an output beampattem. The microphone array has (i) a plurality microphones arranged in a circular portion and (ii) a center microphone. The signal processing subsystem has (1) a decomposer that spatially decomposes the microphone audio signals to generate a plurality of eigenbeams and (2) a heamformer that generates the output beampattern as a weighted sum of the eigenbeams. By adding the center microphone, the audio system is able to provide some degree of control over the beamforming in the vertical direction as well as provide reduction of modal aliasin.

Abstract translation: 在一个实施例中，音频系统具有麦克风阵列和处理由麦克风阵列产生的音频信号以产生输出波段的信号处理子系统。 麦克风阵列具有（i）布置成圆形部分的多个麦克风和（ii）中心麦克风。 信号处理子系统具有（1）分解器，其空间分解麦克风音频信号以产生多个本征波束;以及（2）生成输出波形图以作为本征波束的加权和的反射成像器。 通过添加中心麦克风，音频系统能够在垂直方向上提供对波束成形的一定程度的控制，并且可以减少模态别名。

公开(公告)号：US20100128901A1

公开(公告)日：2010-05-27

申请号：US12527197

申请日：2008-02-18

Applicant: David Herman

Inventor： David Herman

IPC: H03G5/00 ,  H04R19/04

CPC classification number: H04R1/086 ,  H04R1/406 ,  H04R3/005 ,  H04R25/405 ,  H04R25/407 ,  H04R2201/401 ,  H04R2201/405 ,  H04R2410/07

Abstract: An apparatus for reduction of wind noise comprised of an electro-acoustic transducer arrangement with at least one transducer element. The exposed structure is covered with at least one thin layer of wind-resistive material, in the form of a mesh, and optionally includes one or more further layers of felt, foam and/or mesh in any combination. Where a plurality of elements is provided, the electrical outputs of the elements may be added together to provide an output signal with increased signal to wind noise ratio. The signal may be subject to additional signal processing such as filtering and/or level sensitive signal inhibition.

Abstract translation: 一种用于降低风噪声的装置，包括具有至少一个换能器元件的电声换能器装置。 暴露的结构覆盖有网状形式的至少一层耐风材料薄层，并且任选地包括任何组合的一个或多个另外的毡，泡沫和/或网格层。 在提供多个元件的情况下，可以将元件的电输出相加在一起以提供具有增加的信噪比的输出信号。 该信号可能经受附加信号处理，例如滤波和/或电平敏感信号抑制。

公开(公告)号：US07720236B2

公开(公告)日：2010-05-18

申请号：US11405667

申请日：2006-04-14

Applicant: William V. Oxford

Inventor： William V. Oxford

IPC: H04R3/00 ,  H04B3/20

CPC classification number: H04M1/6008 ,  H04M1/6033 ,  H04R1/403 ,  H04R1/406 ,  H04R3/005 ,  H04R3/02 ,  H04R27/00 ,  H04R29/007 ,  H04R2201/401 ,  H04R2201/403 ,  H04R2201/405 ,  H04R2203/12 ,  H04R2225/41 ,  H04R2227/003 ,  H04R2420/07 ,  H04R2430/20 ,  H04R2430/21 ,  H04R2430/23 ,  H04R2499/11

Abstract: A system such as a speakerphone may include a processor, memory, a speaker and a microphone. The processor may be configured (via program instructions stored in the memory) to calibrate the speaker by: outputting a stimulus signal; receiving an input signal corresponding to the stimulus signal; computing a midrange sensitivity and a lowpass sensitivity for a transfer function derived from a spectrum of the input signal and a spectrum of the output signal; subtracting the midrange sensitivity from the lowpass sensitivity to obtain a speaker-related sensitivity; performing an iterative search for current parameters of a speaker model using the input signal spectrum, the stimulus signal spectrum and the speaker-related sensitivity; and updating averages of the speaker model parameters using the current parameter values. The stimulus signal may be transmitted during periods of silence in the external environment. The parameter averages may be used to perform echo cancellation.

Abstract translation: 诸如免提电话的系统可以包括处理器，存储器，扬声器和麦克风。 可以通过以下方式配置处理器（通过存储在存储器中的程序指令）来校准扬声器：输出刺激信号; 接收对应于所述刺激信号的输入信号; 计算从输入信号的频谱和输出信号的频谱导出的传递函数的中频灵敏度和低通灵敏度; 从低通灵敏度减去中频灵敏度，以获得与扬声器相关的灵敏度; 使用输入信号频谱，刺激信号频谱和与扬声器有关的灵敏度来对扬声器模型的当前参数进行迭代搜索; 并使用当前参数值更新说话者模型参数的平均值。 刺激信号可以在外部环境中的静音期间传输。 参数平均值可用于执行回声消除。

公开(公告)号：US20100111342A1

公开(公告)日：2010-05-06

申请号：US12262473

申请日：2008-10-31

Applicant: Kenneth D. Jacob ,  Craig R. Jackson ,  Joseph J. Kutil ,  Peter C. Santoro ,  Stuart R. Jang ,  Michael A. Shramko ,  John W. Mazejka ,  Robert A. Warden

Inventor： Kenneth D. Jacob ,  Craig R. Jackson ,  Joseph J. Kutil ,  Peter C. Santoro ,  Stuart R. Jang ,  Michael A. Shramko ,  John W. Mazejka ,  Robert A. Warden

IPC: H04R1/28

CPC classification number: H04R1/26 ,  H04R1/02 ,  H04R2201/028 ,  H04R2201/405 ,  H04R2205/021

Abstract: A compact and portable loudspeaker system operable in two configurations includes a driver array and a base unit having a bass enclosure and a dock. In an extended configuration, the driver array is supported by one or more extension legs between three to eight feet above the base unit where one of the extension legs is held by the dock. The base unit may be placed on a floor of a small to medium venue with the mid-to-high range driver array elevated near or above the elevation of an audience in the venue. In a compact configuration, the driver array is directly supported by the dock and the base unit and driver array may be placed on a table or desk in a classroom, conference room, or other such small to medium venue. The portable loudspeaker system may be transported in the compact configuration.

Abstract translation: 以两种配置可操作的紧凑便携式扬声器系统包括驱动器阵列和具有低音罩和基座的基座单元。 在扩展配置中，驱动器阵列由位于基座单元上方的三到八英尺之间的一个或多个延伸腿支撑，其中一个延伸腿由码头保持。 基地单位可以放置在中小型场地的地板上，中高档驾驶员阵列升高到场地观众高度的近或更高。 在紧凑的配置中，驱动器阵列由码头直接支持，并且基座单元和驱动器阵列可以被放置在教室，会议室或其他这样的小到中等场所的桌子或桌子上。 便携式扬声器系统可以以紧凑的配置传送。

公开(公告)号：US20090296964A1

公开(公告)日：2009-12-03

申请号：US11988667

申请日：2006-07-11

Applicant: Irving Alexander Bienek ,  Paul Raymond Windle ,  Anthony Hooley

Inventor： Irving Alexander Bienek ,  Paul Raymond Windle ,  Anthony Hooley

IPC: H04R5/02

CPC classification number: H04R1/403 ,  H04R1/26 ,  H04R5/02 ,  H04R2201/403 ,  H04R2201/405 ,  H04R2203/12 ,  H04R2205/022

Abstract: A loudspeaker suitable for the generation of surround-sound effects comprising a plurality of transducers that are together arranged to generate one or more beams of sound, at least one of which beams is steerable, wherein the transducers are arranged to reproduce sound only at frequencies higher than a selected lower frequency limit of 250 Hz or more. The loudspeaker may be foldable or dismantable so as to allow greater portability and may have means for interacting with an external electronics device, for example to allow low frequency sound signals to be reproduced by woofers in the external device.

Abstract translation: 一种适于产生环绕声效果的扬声器，包括多个换能器，所述多个换能器一起布置成产生一个或多个声束，其中至少一个波束是可操纵的，其中换能器被布置成仅在更高频率处再现声音 比所选择的较低频率限制为250Hz以上。 扬声器可以是可折叠的或可拆卸的，以便允许更大的便携性，并且可以具有用于与外部电子设备相互作用的装置，例如允许低频声音信号由外部设备中的低音扬声器再现。

公开(公告)号：US20080247567A1

公开(公告)日：2008-10-09

申请号：US12088315

申请日：2006-09-29

Applicant: Morgan Kjolerbakken ,  Vibeke Jahr ,  Ines Hafizovic

Inventor： Morgan Kjolerbakken ,  Vibeke Jahr ,  Ines Hafizovic

IPC: H04R3/00 ,  H04N5/91

CPC classification number: H04N7/142 ,  H04R2201/401 ,  H04R2201/405 ,  H04R2430/20

Abstract: Method and system for digitally directive focusing and steering of sampled sound within a target area for producing a selective audio output accompanying video. In a preferred embodiment, the method and system is characterized by receiving position and focus data from one or more cameras shooting an event, and use this input data for generating relevant sound output together with the picture.

Abstract translation: 用于在目标区域内的采样声音的数字指向聚焦和转向的方法和系统，用于产生伴随视频的选择性音频输出。 在优选实施例中，该方法和系统的特征在于从一个或多个拍摄事件的摄像机接收位置和焦点数据，并且使用该输入数据与图像一起产生相关声音输出。

公开(公告)号：US20070269062A1

公开(公告)日：2007-11-22

申请号：US11748373

申请日：2007-05-14

Applicant: Rene Rodigast ,  Michael Strauss

Inventor： Rene Rodigast ,  Michael Strauss

IPC: H04R5/02 ,  H04R5/00

CPC classification number: H04R5/02 ,  H04R1/403 ,  H04R3/12 ,  H04R27/00 ,  H04R2201/403 ,  H04R2201/405 ,  H04R2430/01 ,  H04S3/00 ,  H04S2420/13

Abstract: A driving device for a sound system by loudspeaker signals, wherein the sound system has a wave field synthesis loudspeaker array and one or several supply loudspeakers arranged separate from the wave field synthesis array includes an audio input for receiving at least one audio signal from at least one sound source, a position input for receiving information on a position of the sound source, a wave field synthesis unit for calculating loudspeaker signals for the loudspeakers of the wave field synthesis loudspeaker array, and a provider for providing the loudspeaker signal for the one or the several supply loudspeakers. The driving device enables a sound system by means of which sound localization becomes possible for the audience and at the same time pleasant levels can be achieved also in the first rows of the audience.

Abstract translation: 一种用于通过扬声器信号进行声音系统的驱动装置，其中所述声音系统具有波场合成扬声器阵列和与所述波场合成阵列分离布置的一个或多个供电扬声器包括音频输入，用于至少从至少一个音频信号接收 一个声源，用于接收关于声源的位置的信息的位置输入，用于计算所述波场合成扬声器阵列的扬声器的扬声器信号的波场合成单元，以及用于为所述波场合成扬声器阵列的扬声器提供扬声器信号的提供器， 几个供应扬声器。 驱动装置能够实现声音系统，通过该系统，听众可以进行声音定位，并且同时可以在观众的第一排中实现愉快的水平。

公开(公告)号：US20060204022A1

公开(公告)日：2006-09-14

申请号：US10544493

申请日：2004-02-24

Applicant: Anthony Hooley ,  Angus Goudie ,  Ursula Lenel ,  Mark Shepherd ,  Irving Bienek

Inventor： Anthony Hooley ,  Angus Goudie ,  Ursula Lenel ,  Mark Shepherd ,  Irving Bienek

IPC: H04R3/00 ,  H04R1/02 ,  H04R9/06

CPC classification number: H04R3/12 ,  H04N5/45 ,  H04N5/642 ,  H04R1/403 ,  H04R5/02 ,  H04R2201/401 ,  H04R2201/403 ,  H04R2201/405 ,  H04R2203/12 ,  H04R2205/022 ,  H04R2217/03 ,  H04R2499/15

Abstract: A loudspeaker system is described including an array of electro-acoustic transducers capable of generating steerable beams of sound and additional transducers adapted to reproduce low frequency sound being placed at the perimeter of said array.

Abstract translation: 描述了一种扬声器系统，其包括能够产生可转向的声束的电声换能器的阵列，以及适于再现放置在所述阵列的周边的低频声音的附加换能器。