公开(公告)号：WO0057671A3

公开(公告)日：2001-03-15

申请号：PCT/DE0000859

申请日：2000-03-20

Applicant: SIEMENS AG ,  KLINKE STEFANO AMBROSIUS ,  LECKSCHAT DIETER ,  AUBAUER ROLAND ,  KERN RALF

Inventor： KLINKE STEFANO AMBROSIUS ,  LECKSCHAT DIETER ,  AUBAUER ROLAND ,  KERN RALF

IPC: H04R3/00 ,  H04R29/00

CPC classification number: H04R29/006 ,  H04R3/005 ,  H04R2201/403

Abstract: The aim of the invention is to receive and treat audiosignals with a good user signal to fault signal ratio in noise conditions and with a good ratio between the direct and the reflected echo in surroundings which are especially not free from reverberation. Electrical signals are produced by converting recorded audiosignals. Said electrical signals are treated by a given microphone assembly in such a way that electrical signals having different strengths (different sensitivities of the microphones) and being produced by the microphones are compensated automatically, i.e. without manual and individual compensation procedures which have to be carried out separately, when the sound pressure levels of the microphones pertaining to the microphone assembly are equal. According to the invention, the properties of an array of microphones are combined to the properties of a method for compensating the sensitivity of microphones.

Abstract translation: 到Störschallbedingungen下和编辑之间的良好关系具有良好有用信噪比的音频信号的直接和反射的声音在特定的非消声，接收环境和通过转换记录的音频信号的一个预定的麦克风阵列产生 处理的电信号，使得当在从不同强度的这些产生的电信号的麦克风阵列的麦克风相同声压级 - 麦克风的不同灵敏度 - 自动的，即 无需人工独立并且分别要进行补偿的程序，均衡。 本发明是基于这样的思想，麦克风阵列的特性结合与用于补偿麦克风的灵敏度的方法。

公开(公告)号：WO00001200A1

公开(公告)日：2000-01-06

申请号：PCT/GB1999/002063

申请日：1999-06-30

IPC: H04R25/00

CPC classification number: H04R25/407 ,  H04R25/502 ,  H04R2201/403 ,  H04S2420/03

Abstract: A method of processing sound comprises the steps of: detecting sounds at at least two spaced detecting locations; analysing the detected sounds to identify the angular relation between respective sound sources and the detecting locations; permitting selection of an angular relation associated with a particular sound source; and processing the detected sounds in response to the selection to highlight a stream of sound associated with the particular sound source. The method may be utilised in a hearing aid, to allow a user to stream sounds by interactively selecting a particular source, and thus minimise background "noise".

Abstract translation: 处理声音的方法包括以下步骤：检测至少两个间隔检测位置的声音; 分析检测到的声音以识别各声源与检测位置之间的角度关系; 允许选择与特定声源相关联的角度关系; 以及响应于所述选择处理检测到的声音以突出与特定声源相关联的声音流。 该方法可以用于助听器中，以允许用户通过交互地选择特定的源来流式传输声音，从而使背景“噪声”最小化。

公开(公告)号：WO98041928A1

公开(公告)日：1998-09-24

申请号：PCT/DE1998/000209

申请日：1998-01-23

IPC: G06F17/18 ,  G06F17/40 ,  H04R3/00 ,  G06F17/00

CPC classification number: G06K9/6242 ,  H04R3/005 ,  H04R2201/403

Abstract: The invention relates to a method for extracting statistically independent signals from a mass of mixed input signals, based on the information maximization principle. Numerical stability of a method based on the information maximization principle is guaranteed when the determinants of the transformation matrix have a constant value (step 504) in the rule determining maximum likelihood expectation. The transformation matrix and likelihood expectation models of intermediate signals are adapted in a training phase (step 502). The statistically independent intermediate signals are determined (step 505) in relation to the input signals in an application phase using the transformation matrix arising after adaptation.

Abstract translation: 所以建议从基于信息最大化的原理的量混合的输入信号为统计上独立的信号的提取的处理。 第一时间是基于信息最大化的，在所述过程的原理的过程的数值稳定性确保用于确定所述最大似然期望，变换矩阵的行列式具有恒定值（步骤504）。 变换矩阵以及中间信号的概率密度的模型是在训练阶段适于（步骤502）。 在一种应用相的输入信号，使用被适配后获得的变换矩阵中，在统计上独立的中间信号被确定（步骤505）。

公开(公告)号：WO1997025790A2

公开(公告)日：1997-07-17

申请号：PCT/IB1996001506

申请日：1996-06-04

Applicant: ANDREA ELECTRONICS CORPORATION

Inventor： ANDREA ELECTRONICS CORPORATION ,  ANDREA, Douglas ,  TOPF, Martin

IPC: H04B15/00

CPC classification number: H04R1/1083 ,  G10K11/178 ,  H04B1/12 ,  H04M1/05 ,  H04M1/19 ,  H04M1/6008 ,  H04M9/08 ,  H04R1/10 ,  H04R1/1008 ,  H04R3/00 ,  H04R3/005 ,  H04R5/0335 ,  H04R29/006 ,  H04R2201/107 ,  H04R2201/403

Abstract: This invention relates to a method and an apparatus for reducing ambient noise for use with a headset or a boom headset attached to a boom microphone device or the like. The apparatus can include a sensor microphone to detect a background noise signal, a desired input audio transmission, and signal processing means for canceling the noise signals to create an inverted antinoise signal within an acoustical waveguide located adjacent to the earphone of headset. The method for reducing noise according to this invention is provided by an open loop circuit allowing the input audio signal from an operator or caller to be transmitted to the user's ear without the disturbance of unwanted ambient noise. The method provides ajustments to the gain/or and phase of a noise signal for canceling the noise component detected, within an acoustical waveguide to produce a quiet zone for the desired audio speech to be transmitted. The apparatus can also include a noise cancellation microphone transmitter system having a first and second microphone arranged such that the first microphone receives a desired speech input and the background noise present in the vicinity of the speech, and the second microphone receives substantially only the background noise. The background noise from the second microphone is converted into a corresponding electrical signal and subtracted from a signal corresponding to the speech and background noise obtained from the first microphone so as to produce a signal representing substantial the speech. The active noise cancellation and noise reduction system is enhanced with the following features: an automatic audio microphone transmission by sensing speech (a "VOX" circuit), transmitting portion of microphone signal to earcup speaker by an increased gain sidetone channel ("sidetone"), and converting an active noise cancellation microphone to a standard omni-directional microphone by removing the voice microphone from the circuit design and increasing the gain of the noise microphone amplifier. The first and second microphones may be utilized as a directional microphone according to this invention when a far field response is desired. The method of the invention also relates to the use of a two terminal microphone configuration.

Abstract translation: 本发明涉及一种用于降低环绕噪声的方法和装置，该耳机或吊杆耳机与悬臂式麦克风装置等相连。 该装置可以包括用于检测背景噪声信号，期望的输入音频传输的传感器麦克风和用于消除噪声信号的信号处理装置，以在与耳机的耳机相邻的声波导内产生反向防噪声信号。 根据本发明的降低噪声的方法由开环电路提供，允许来自操作者或呼叫者的输入音频信号被传送到用户的耳朵而不受不想要的环境噪声干扰。 该方法提供噪声信号的增益/或相位的调整，以消除在声波导中检测到的噪声分量，以产生要发送的期望音频语音的安静区域。 该装置还可以包括具有第一和第二麦克风的噪声消除麦克风发射机系统，其布置成使得第一麦克风接收期望的语音输入和语音附近存在的背景噪声，并且第二麦克风仅接收背景噪声 。 来自第二麦克风的背景噪声被转换成对应的电信号，并从与从第一麦克风获得的语音和背景噪声相对应的信号中减去，以便产生表示实质性语音的信号。 有源噪声消除和降噪系统被增强，具有以下特征：通过感测语音（“VOX”电路）的自动音频麦克风传输，通过增加的增益侧音频信道（“sidetone”）将麦克风信号的一部分传送到耳机扬声器 ，并通过从电路设计中移除语音麦克风并增加噪声麦克风放大器的增益，将有源噪声消除麦克风转换成标准全向麦克风。 当需要远场响应时，第一和第二麦克风可以用作根据本发明的定向麦克风。 本发明的方法还涉及使用双端麦克风配置。

公开(公告)号：WO1985002022A1

公开(公告)日：1985-05-09

申请号：PCT/US1984001584

申请日：1984-10-04

Applicant: AMERICAN TELEPHONE & TELEGRAPH COMPANY

Inventor： AMERICAN TELEPHONE & TELEGRAPH COMPANY ,  COKER, Cecil, Harold ,  FISCHELL, David, Ross

IPC: G01S03/80

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

Abstract: A system insensitive to nonspeech sounds utilizes a pair or spatially separated microphones (101, 102) to obtain the direction of origin of speech signals from a common sound source. The speech signal from each microphone is transformed (330, 340, 350, 355, 360, 365, 370, 375) into a pulse representative signal having a rapid increase responsive to pitch peaks of energy from the sound source. The cross correlation of these pulses accurately reflects the phase relationship between the speech signals arriving at the microphones. The cross correlation is implemented (450, 460) as time interval histograms which are periodically read to identify the direction of the common sound source.

公开(公告)号：KR101759042B1

公开(公告)日：2017-07-17

申请号：KR1020167011431

申请日：2008-11-20

Applicant: 오디오 픽셀즈 리미티드

Inventor： 코헨,유발 ,  레윈,다니엘 ,  카플란,쉐이 ,  스로민,알렉스 ,  벤시몬,메이어

IPC: H04R1/40 ,  H04R3/00 ,  H04R3/12 ,  H04R1/00 ,  H02K41/03 ,  H02N13/00

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: 물리적효과를발생시키기위한작동시스템으로서, 상기시스템은, 제 1 및제 2 힘의활성화각각에대한반응으로제 1 및제 2 극단위치각각을향해각자의축을따라앞뒤로교대로이동하도록각각강제된병진요소들의하나이상의배열을포함하며; 그리고, 상기병진요소들의하나이상의하위세트를제 1 및제 2 극단위치각각으로선택적으로래치하기위하여제 1 및제 2 힘을이용하도록기능하는제어기를포함한다.

公开(公告)号：KR101572283B1

公开(公告)日：2015-11-26

申请号：KR1020107013639

申请日：2008-11-20

Applicant: 오디오 픽셀즈 리미티드

Inventor： 코헨,유발 ,  레윈,다니엘 ,  카플란,쉐이 ,  스로민,알렉스 ,  벤시몬,메이어

IPC: H04R1/40 ,  H04R3/12 ,  H02K33/16

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: 물리적효과를발생시키기위한작동시스템으로서, 상기시스템은, 제 1 및제 2 힘의활성화각각에대한반응으로제 1 및제 2 극단위치각각을향해각자의축을따라앞뒤로교대로이동하도록각각강제된병진요소들의하나이상의배열을포함하며; 그리고, 상기병진요소들의하나이상의하위세트를제 1 및제 2 극단위치각각으로선택적으로래치하기위하여제 1 및제 2 힘을이용하도록기능하는제어기를포함한다.

公开(公告)号：KR1020150119243A

公开(公告)日：2015-10-23

申请号：KR1020157025011

申请日：2014-03-06

Applicant: 애플 인크.

Inventor： 존슨,마틴,이. ,  홀만,톰린슨

IPC: H04R29/00 ,  H04S7/00

CPC classification number: H04R5/04 ,  H04R1/403 ,  H04R5/02 ,  H04R29/002 ,  H04R2201/401 ,  H04R2201/403 ,  H04R2203/12 ,  H04R2227/007 ,  H04S3/008 ,  H04S7/301 ,  H04S7/305 ,  H04S7/307 ,  H04S2400/01 ,  H04S2400/15

Abstract: 청취영역에서음색항상성을유지하기위하여여러지향및 주파수에걸쳐라우드스피커어레이를구동하기위한시스템및 방법을설명한다. 일실시예에서, 청취영역을설명하는주파수독립형실내상수는제1 빔패턴의지향지수, 청취영역의청취자의위치에서의직접대 잔향비(direct-to-reverberant ratio:), 및지정된주파수에서청취영역에대한추정잔향시간을이용하여결정된다. 이실내상수에기초하여, 제2 빔패턴에대한오프셋이생성될수 있다. 오프셋은일정한음색을얻기위한제1 및제2 빔패턴간의데시벨차이를설명하고다중주파수에서제2 빔패턴을조정하는데 사용될수 있다. 일정한음색을유지하는것은사운드프로그램콘텐츠를나타내는데 사용된청취영역및 빔패턴들의특성에상관없이음질을개선한다. 다른실시예들이또한기술된다.

Abstract translation: 描述了跨越方向性和频率驱动扬声器阵列以保持收听区域中的音色稳定性的系统和方法。 在一个实施例中，使用第一波束图案的方向性指数，收听区域中的收听者位置处的直接到混响比率DR以及收听区域中的收听者位置的估计混响时间T60来确定描述听音区域的频率独立房间常数 收听区域以指定频率。 基于该室常数，可以针对第二光束图案产生偏移。 该偏移描述了第一和第二波束图案之间的分贝差，以实现恒定的音色，并可用于在多个频率处调整第二波束图案。 保持恒定的音色可以改善音频质量，而不管收听区域的特征和用于表示声音节目内容的波束图案。 还描述了其它实施例。

公开(公告)号：KR1020140057742A

公开(公告)日：2014-05-14

申请号：KR1020120123831

申请日：2012-11-02

Applicant: (주)에스엠인스트루먼트

Inventor： 김영기 ,  이광현 ,  강준구

IPC: H04R1/40 ,  H04R19/00

CPC classification number: H04R1/406 ,  H04R19/005 ,  H04R2201/003 ,  H04R2201/401 ,  H04R2201/403

Abstract: The present invention relates to an acoustic camera using a MEMS microphone array comprising an acoustic sensing device using the MEMS microphone array, in which a plurality of MEMS microphones (10) is mounted on a printed circuit board (20), and a display unit (60) displaying a calculated noise level by color. The MEMS microphone (10) has 11-30 wing units expanded in a radial longitudinal direction, and the 2-30 MEMS microphones (10) are arranged on the one wing unit.

Abstract translation: 本发明涉及一种使用MEMS麦克风阵列的声学相机，该麦克风阵列包括使用MEMS麦克风阵列的声学感测装置，其中多个MEMS麦克风（10）安装在印刷电路板（20）上，以及显示单元 60）通过颜色显示计算的噪声水平。 MEMS麦克风（10）具有在径向纵向方向上扩展的11-30个翼单元，并且2-30个MEMS麦克风（10）布置在一个翼单元上。

公开(公告)号：KR101292206B1

公开(公告)日：2013-08-01

申请号：KR1020070098891

申请日：2007-10-01

Applicant: 삼성전자주식회사

Inventor： 고상철

IPC: H04R1/40 ,  H04R3/00

CPC classification number: H04R1/403 ,  H04R2201/403 ,  H04S7/302

Abstract: 본 발명은 어레이 스피커 시스템 및 그 구현 방법에 관한 것으로, 본 발명에 따른 어레이 스피커 시스템은 미리 설정된 조절 인자에 따라 어레이에 포함된 복수 개의 스피커들의 조합들을 각각 하나의 그룹으로 설정하는 그룹 설정부, 조절 인자에 따라 입력 신호를 하나 이상의 음원 신호로 분리하여 설정된 그룹에 선택적으로 할당하는 신호 할당부, 그룹의 음원 특성에 따라 그룹에 해당하는 스피커들을 통해 출력할 음원 신호를 조절하는 음원 조절부 및 그룹에 해당하는 스피커들을 통해 조절된 음원 신호를 출력하는 신호 출력부를 포함함으로써, 광대역 주파수의 출력시 주파수 대역별로 최적화된 음 조절과 출력이 가능하고, 출력 음원 신호가 왜곡되는 근접장 효과의 발생을 방지하고, 스테레오 및 멀티 채널 효과를 얻을 수 있으며, 어레이 스피커의 지향성을 향상시킬 수 있다.