公开(公告)号：WO2011031794A2

公开(公告)日：2011-03-17

申请号：PCT/US2010/048172

申请日：2010-09-08

Applicant: CLEMENTS, Philip, R.

Inventor： CLEMENTS, Philip, R.

IPC: H04R1/20

CPC classification number: H04R1/02 ,  H04R1/2857 ,  H04R1/2861 ,  H04R1/2865 ,  H04R1/2888 ,  H04R1/345 ,  H04R2440/03

Abstract: In a low frequency transducer system a multi-compression chamber, inverse horn structure is employed in combination with a resonance-distortion filter chamber. The filter chamber effectively expands the effective enclosure volume at low frequencies and connected to one of the compression chambers filter parasitic resonances and distortion and allowing the system to more efficiently reproduce low frequencies while being able to use smaller diameter transducers and maintaining good system sensitivity. Compression chambers are organized for constant or continuous compression on a section-by-section basis throughout the inverse horn system.

Abstract translation: 在低频换能器系统中，多压缩室与反谐振失真滤波室结合使用逆喇叭结构。 过滤器室有效地扩展了低频处的有效封闭容积，并连接到压缩室之一，以滤除寄生谐振和失真，并允许系统更有效地再现低频，同时能够使用更小直径的传感器并保持良好的系统灵敏度。 在整个反喇叭系统中，按照逐段的方式组织压缩室以进行恒定或连续的压缩。

公开(公告)号：WO2011009309A1

公开(公告)日：2011-01-27

申请号：PCT/CN2010/071453

申请日：2010-03-31

Applicant: 先歌国际影音股份有限公司 ,  张光武

Inventor： 张光武

IPC: H04R1/20

CPC classification number: H04R5/02 ,  H04R1/345 ,  H04R2205/022 ,  H04R2205/024

公开(公告)号：WO2009085785A2

公开(公告)日：2009-07-09

申请号：PCT/US2008/087072

申请日：2008-12-17

Applicant: MOTOROLA, INC. ,  ZUREK, Robert, A. ,  CHEN, Shaohai ,  CLARK, Joel A. ,  STEUER, Paul R. ,  DAVIS, Giles

Inventor： ZUREK, Robert, A. ,  CHEN, Shaohai ,  CLARK, Joel A. ,  STEUER, Paul R. ,  DAVIS, Giles

IPC: H04R1/20 ,  H04R5/00 ,  H04B1/40

CPC classification number: H04R1/2826 ,  H04M1/0254 ,  H04M1/035 ,  H04R1/023 ,  H04R1/2819 ,  H04R1/2842 ,  H04R2499/11

Abstract: Disclosed is a portable audio device and a quick-disconnect passive acoustic cover. The portable audio device includes a housing and a speaker supported by the housing that have a first system frequency response. The speaker of the portable audio device has a first side and a second side associated with a first audio port and a second audio port, associated with a first acoustic load and a second acoustic load respectively. The housing is configured to removably receive the cover which is configured to redefine at least one of the first acoustic load and the second acoustic load to replace the first system frequency response with a second system frequency response. The cover provides one or more additional surrounding structures, which replace the inherent frequency response with an improved frequency response. Different embodiments of the disclosed cover provide a plurality of sound quality enhancement options to a user.

Abstract translation: 公开了一种便携式音频设备和快速断开的无源声学罩。 便携式音频设备包括外壳和由外壳支撑的具有第一系统频率响应的扬声器。 便携式音频设备的扬声器具有与分别与第一声负载和第二声负载相关联的第一音频端口和第二音频端口相关联的第一侧和第二侧。 外壳被构造成可移除地接收盖，该盖构造成重新限定第一声负载和第二声负载中的至少一个，以用第二系统频率响应代替第一系统频率响应。 该覆盖物提供一个或多个附加的周围结构，其用改进的频率响应代替固有的频率响应。 所公开的封面的不同实施例向用户提供多个音质增强选项。

公开(公告)号：WO2008092138A1

公开(公告)日：2008-07-31

申请号：PCT/US2008/052139

申请日：2008-01-26

Applicant: MICROSOFT CORPORATION

Inventor： ZHANG, Cha ,  FLORENCIO, Dinei ,  ZHANG, Zhengyou

IPC: H04S7/00 ,  H04R1/20

CPC classification number: H04R1/406 ,  H04R3/005 ,  H04S2400/11

Abstract: A multi-sensor sound source localization (SSL) technique is presented which provides a true maximum likelihood (ML) treatment for microphone arrays having more than one pair of audio sensors. Generally, this is accomplished by selecting a sound source location that results in a time of propagation from the sound source to the audio sensors of the array, which maximizes a likelihood of simultaneously producing audio sensor output signals inputted from all the sensors in the array. The likelihood includes a unique term that estimates an unknown audio sensor response to the source signal for each of the sensors in the array.

Abstract translation: 提出了一种多传感器声源定位（SSL）技术，为具有多于一对音频传感器的麦克风阵列提供真正的最大似然（ML）处理。 通常，这是通过选择导致从声源传播到阵列的音频传感器的时间的声源位置来实现的，这最大化同时产生从阵列中的所有传感器输入的音频传感器输出信号的可能性。 可能性包括一个唯一的术语，它估计阵列中每个传感器对源信号的未知音频传感器响应。

公开(公告)号：WO2007048281A1

公开(公告)日：2007-05-03

申请号：PCT/CN2005/002037

申请日：2005-11-28

Applicant: 方书哲

Inventor： 方书哲

IPC: H04R1/20

CPC classification number: H04R1/26

Abstract: A new colum is composed of a part which is used for connecting the sound source coming from external, a box, mediant and alt speakers, a panel, a power amplifier panel, a colum base frame. The box's top is opened upward, and an opening is located on the upper of a sidewall that is communicated with the cavity of the box. The part that is used for connecting the sound source coming from external is located on the top opening part of the box. The mediant and alt speakers are mounted on the panel, and the panel is fastened on the opening which is communicated with the cavity of the box. The power amplifier panel is mounted within the cavity of the box. The colum base frame is mounted on the bottom of the box. Since the fixing joint and the fixing joint panel within the part that is used for connecting the sound source coming from external is connected by the rubber band , which is flexible connection, the connecting portion cannot be easily damaged, and a F2.5/F3.5 mini-joint and the fixing joint are mounted within the part that is used for connecting the sound source coming from external, so the sound source of various type MP3 (IPOD, telephone MP3, normal MP3) can be connected. The volum is convenient to be use.

公开(公告)号：WO2004082326A3

公开(公告)日：2006-05-18

申请号：PCT/US2004007846

申请日：2004-03-15

Applicant: SOUND PHYSICS LABS INC ,  DANLEY THOMAS J ,  SKURAN BRADFORD J

Inventor： DANLEY THOMAS J ,  SKURAN BRADFORD J

IPC: H04R1/28 ,  A47B81/06 ,  H04R1/02 ,  H04R1/20 ,  H05K5/02

CPC classification number: H04R1/2857

Abstract: A sound reproducing apparatus (30) in accordance with the invention includes a body (32), a driver (34a, 34b) for reproducing a desired sound and an acoustic passageway (36) through which the reproduced sound is output. The acoustic passageway (36) having an internal portion (36a), such as a horn, located within the body of the apparatus and an external portion defined by at least one of the exterior surfaces of the body (32) and/or a boundary of the environment within which the apparatus is placed. In one form, the external portion of the acoustic path is defined by an exterior surface or surfaces of the body (32) and a wall, floor or ceiling.

Abstract translation: 根据本发明的声音再现装置（30）包括主体（32），用于再现期望声音的驱动器（34a，34b）和输出再现声音的声通道（36）。 声通道（36）具有位于设备主体内的内部部分（例如喇叭），以及由主体（32）的至少一个外表面和/或边界限定的外部部分 的装置所在的环境。 在一种形式中，声学路径的外部部分由主体（32）的外表面或墙壁，地板或天花板限定。

公开(公告)号：WO2004004297A8

公开(公告)日：2004-12-29

申请号：PCT/IB0302823

申请日：2003-06-19

Applicant: KONINKL PHILIPS ELECTRONICS NV ,  ROOVERS DAVID A C M

Inventor： ROOVERS DAVID A C M

IPC: G10L15/20 ,  G10L21/02 ,  G10L21/0208 ,  G10L21/0216 ,  H04M9/08 ,  H04R1/20 ,  H04R3/00

CPC classification number: G10L21/0208 ,  G10L2021/02168 ,  H04M9/08

Abstract: An audio enhancement system (1) for speech recognition or voice control is described, comprising a signal input for carrying a distorted desired signal (z), a reference signal input, and a spectral processor (SP) coupled to both signal inputs for processing the distorted desired signal (z) by means of a reference signal (x) acting as an estimate for the distortion of the desired signal. The spectral processor (SP) is equipped for said processing such that a factor C' is determined, whereby said estimate is a function of the factor C' times the spectral power of the reference signal (x), and the factor C is determined as the spectral ratio between those components of the signals z and x, which are essentially stationary with time. Such a factor determined by stationary parts of those signals makes application of a critical speech detector in the audio enhancement system superfluous.

公开(公告)号：WO01037435A2

公开(公告)日：2001-05-25

申请号：PCT/US2000/041537

申请日：2000-10-25

IPC: H04R1/20 ,  G10K11/34 ,  H01Q3/40 ,  H01Q25/00 ,  H03H21/00 ,  H04R1/40 ,  H04R3/00 ,  H04B

CPC classification number: H01Q3/40 ,  G10K11/341 ,  H01Q25/00

Abstract: A sensor array (10 sub.1-N) receiving system which incorporates one or more filters (16 sub.1-N) that are capable of adaptive and/or fixed operation. The filters are defined by a multiple of coefficients and the coefficients are set so as to maximize the signal to noise ratio of the receiving array's output. In one preferred embodiment, the filter coefficients are adaptively determined and are faded into a predetermined group of fixed values upon the occurrence of a specified event. Thereby, allowing the sensor array (10 sub.1-N) to operate in both the adaptive and fixed modes, and providing the array with the ability to employ the mode most favorable for a given operating environment. In another preferred embodiment, the filter coefficients are set to a fixed group of values which are determined to be optimal for a predefined noise environment.

Abstract translation: 一种具有能够进行自适应和/或固定操作的一个或多个滤波器（16子.1-N）的传感器阵列（10 sub.1-N）接收系统。 滤波器由多个系数定义，并且系数被设置为使接收阵列的输出的信噪比最大化。 在一个优选实施例中，滤波器系数被自适应地确定，并且在发生指定事件时被褪色成预定的一组固定值。 因此，允许传感器阵列（10 sub.1-N）在自适应模式和固定模式下操作，并且为阵列提供使用对给定操作环境最有利的模式的能力。 在另一个优选实施例中，将滤波器系数设置为对于预定义的噪声环境被确定为最佳的固定值组。

公开(公告)号：WO2023284963A1

公开(公告)日：2023-01-19

申请号：PCT/EP2021/069739

申请日：2021-07-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD. ,  GROSCHE, Peter

Inventor： WATSON, Andrew

IPC: H04R1/02 ,  H04R1/20 ,  H04R7/02 ,  H04S3/00

Abstract: An audio device (10) for producing a sound field is disclosed, comprising a plurality of loudspeakers (20, 21a-g, 22a-g) arranged along a longitudinal axis of the audio device (10), wherein each loudspeaker is configured to emit sound waves in a main radiation direction perpendicular to the longitudinal axis. The audio device (10) further comprises a processing circuitry configured to process input signals to obtain output signals for driving the loudspeakers (20, 21a-g, 22a-g). The processing circuitry is configured to implement one or more beamformers for obtaining, based on a desired beamforming direction, the output signals. The output signals for the loudspeakers comprise a respective first output signal component for generating a surround sound wave in the desired beamforming direction and a respective second output signal component for generating a compensation sound wave, wherein the compensation sound wave destructively interferes with the surround sound wave in the main radiation direction.

公开(公告)号：WO2022243720A1

公开(公告)日：2022-11-24

申请号：PCT/IB2021/054191

申请日：2021-05-16

Applicant: TAGHIZADEHMAJID, Rasoul

Inventor： TAGHIZADEHMAJID, Rasoul

IPC: H04R1/02 ,  H04R1/20 ,  H04R3/12

Abstract: Wireless roofing band with paging capability with built-in amplifier installed on the ceiling and the ability to connect to the network and telephone line. The phone is connected with 4 speaker inputs that are used for paging. It also can connect to TV and computer via AUX input. The ceiling speaker circuit has four outputs, one of which is connected to the speaker and the sound of radio waves of the Bluetooth type that is received from the mobile phone and also is connected to the audio devices through the cable, which is in the form of reciprocating sound.