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公开(公告)号：US09025415B2
公开(公告)日：2015-05-05
申请号：US13521244
申请日：2011-02-16
CPC分类号： G01S3/803 , G01S3/8036 , H04R3/005
摘要： An audio source localization apparatus receives signals from a microphone array (101), and a reference processor (105) generates at least three reference beams with different directional properties. An estimation processor (107) which generates simultaneous direction estimates for two sound sources, comprises a circuit (401) combining signals of the at least three reference beams with a beam shape parameter reflecting a shape of an audio beamform and a beam direction parameter reflecting a direction of an audio beamform for the combined signal. A cost processor (403) generates a cost measure indicative of an energy of the combined signal and a minimization processor (405) estimates values of the beam shape parameter and the beam direction parameter which correspond to a local minimum of the cost measure. A direction processor (407) then determines simultaneous direction estimates for two sound sources from the determined parameter values. Improved direction estimation for two simultaneous sound sources may be achieved.
摘要翻译： 音频源定位装置从麦克风阵列（101）接收信号，并且参考处理器（105）产生具有不同方向属性的至少三个参考波束。 产生用于两个声源的同时方向估计的估计处理器（107）包括将所述至少三个参考光束的信号与反映音频波束形状的波束形状参数组合的电路（401）和反映 组合信号的音频波束形式的方向。 成本处理器（403）产生指示组合信号的能量的成本度量，并且最小化处理器（405）估计对应于成本测量的局部最小值的波束形状参数和波束方向参数的值。 然后，方向处理器（407）根据确定的参数值确定两个声源的同时方向估计。 可以实现改进的两个同时声源的方向估计。
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公开(公告)号：US20140152503A1
公开(公告)日：2014-06-05
申请号：US13692925
申请日：2012-12-03
发明人： Boaz Castro
IPC分类号： G01S3/28
CPC分类号： G01S3/28 , G01S3/30 , G01S3/46 , G01S3/8036 , G01S3/8083
摘要： A linear array of sensors includes at least two omni-directional sensors and at least one directional sensor, with the axis of sensitivity of the directional sensor arranged, e.g., perpendicular to the linear axis of the linear array. The omni-directional sensors and directional sensor receive a signal and in response produce output signals. The direction of arrival of the received signal is estimated with a 360° range using the output signals of the omni-directional sensors and directional sensor. For example, two symmetric solutions for the direction of arrival of the received signal may be determined using the output signals of the omni-directional sensors, and the output signal from the directional sensor is used to determine the correct solution.
摘要翻译： 传感器的线性阵列包括至少两个全向传感器和至少一个定向传感器，定向传感器的灵敏度轴例如垂直于线性阵列的线性轴排列。 全向传感器和方向传感器接收信号并作为响应产生输出信号。 使用全向传感器和定向传感器的输出信号，以360°的范围估计接收信号的到达方向。 例如，可以使用全向传感器的输出信号来确定用于接收信号的到达方向的两个对称解，并且使用来自方向传感器的输出信号来确定正确的解决方案。
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公开(公告)号：US08183997B1
公开(公告)日：2012-05-22
申请号：US13295953
申请日：2011-11-14
申请人： Adrian Wong , Xiaoyu Miao
发明人： Adrian Wong , Xiaoyu Miao
CPC分类号： H04R29/008 , G01H3/12 , G01H3/14 , G01S3/8036
摘要： Example methods and systems for displaying one or more indications that indicate (i) the direction of a source of sound and (ii) the intensity level of the sound are disclosed. A method may involve receiving audio data corresponding to sound detected by a wearable computing system. Further, the method may involve analyzing the audio data to determine both (i) a direction from the wearable computing system of a source of the sound and (ii) an intensity level of the sound. Still further, the method may involve causing the wearable computing system to display one or more indications that indicate (i) the direction of the source of the sound and (ii) the intensity level of the sound.
摘要翻译： 公开了一种用于显示一个或多个指示的方法和系统，所述指示指示（i）声源的方向和（ii）声音的强度水平。 一种方法可以涉及接收对应于由可穿戴计算系统检测到的声音的音频数据。 此外，该方法可以包括分析音频数据以确定（i）来自可佩戴计算系统的声源的方向和（ii）声音的强度级别。 此外，该方法可以包括使可穿戴计算系统显示指示（i）声源的方向和（ii）声音的强度水平的一个或多个指示。
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公开(公告)号：US20050163330A1
公开(公告)日：2005-07-28
申请号：US11027939
申请日：2005-01-04
申请人： Bernard Beguet
发明人： Bernard Beguet
CPC分类号： G01S3/8036 , G03H3/00 , H04R1/406 , H04R2201/401
摘要： This system has a plurality of microphones (3) oriented in several directions and mounted in a support (2) so that each one is flush with or disposed on a rigid surface, the various microphones (3) being connected to a signal processing device that processes the signals coming from the microphones (3) to provide a noise source hologram, namely a distribution of the acoustic pressures or intensities at various points on a given surface.
摘要翻译： 该系统具有多个指向多个方向的麦克风（3）并且安装在支撑件（2）中，使得每个麦克风（3）与刚性表面齐平或布置在刚性表面上，各种麦克风（3）连接到信号处理装置，信号处理装置 处理来自麦克风（3）的信号以提供噪声源全息图，即在给定表面上的各个点处的声压或强度的分布。
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公开(公告)号：US4558439A
公开(公告)日：1985-12-10
申请号：US465638
申请日：1983-02-10
申请人： Alwin Gudesen
发明人： Alwin Gudesen
CPC分类号： G01S11/14 , G01S3/8036 , G01V1/001
摘要： A passive method for obtaining target data from a sound source disposed in a nonsolid medium by means of a sound receiver remote from the sound source, by the steps of: providing, as the sound receiver, first and second sound-to-electrical signal transducers constituted and positioned to each respond to a respective one of two sound waves propagated from the sound source to the sound receiver at respectively different propagation speeds; and deriving, by means of an electrical signal processing system connected to receive output signals from the transducers, target data from the sound source by determining the frequencies of, or the difference in reception time between, the sound waves emitted by the source and to which the two transducers respond.
摘要翻译： 一种被动方法，用于通过远离声源的声音接收器从设置在非固体介质中的声源获得目标数据，步骤：提供作为声音接收器的第一和第二声 - 电信号传感器 构成和定位成各自响应于以不同的传播速度从声源传播到声音接收器的两个声波中的相应一个声波; 并且通过连接以从换能器接收输出信号的电信号处理系统导出来自声源的目标数据，其通过确定由源发射的声波的频率或接收时间之间的差异， 两个换能器响应。
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公开(公告)号：US3789353A
公开(公告)日：1974-01-29
申请号：US3789353D
申请日：1973-01-03
申请人： US NAVY
CPC分类号： G01S3/8036
摘要： An underwater diver communication system is disclosed as including a voice actuated transmitter for broadcasting speech signals throughout an ambient subaqueous environmental medium combined with a two-channel, binaural, speech signal receiver by means of a common local oscillator connected therebetween which, in turn, effects relative phase enhancement in the channels thereof. In addition, the two channels of said binaural receiver incorporate substantially identical adjustable gain amplifiers, respectively, the gains of which are identically regulated by a single control signal from a unique feedback type of signal amplitude enhancement circuit that is effective to further distinguish the amplitudes of the speech signals being processed within one receiver channel relative to those being processed within the other receiver channel, to thereby facilitate the localization of the speech signals received by said diver from said ambient subaqueous environmental medium.
摘要翻译： 公开了一种水下潜水员通信系统，其包括用于在与两通道双耳语音信号接收机组合的环境水下环境介质中通过连接在其间的公共本地振荡器广播语音信号的语音致动发射机， 其通道中的相对相位增强。 另外，所述双耳接收机的两个通道分别包括基本上相同的可调节增益放大器，其增益由来自唯一的反馈类型的信号幅度增强电路的单个控制信号相同地调节，这有效地进一步区分振幅 所述语音信号在一个接收机信道内相对于在另一个接收机信道内被处理的信号进行处理，从而便于所述潜水员从所述环境水下环境介质接收到的语音信号的定位。
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公开(公告)号：US20170105074A1
公开(公告)日：2017-04-13
申请号：US15290643
申请日：2016-10-11
申请人： Oticon A/S
IPC分类号： H04R25/00
CPC分类号： H04R25/407 , G01S3/8036 , G01S3/8083 , H04R25/405 , H04R25/552 , H04R25/554 , H04R2420/01
摘要： The problem of estimating the direction to one or more sound sources of interest relative to a user wearing a pair of hearing devices, e.g. hearing aids, is dealt with. A target signal is generated by a target signal source and transmitted through an acoustic channel to a microphone of a hearing system. Due to additive environmental noise, a noisy acoustic signal is received at the microphones of the hearing system. An essentially noise-free version of the target signal is transmitted to the hearing devices of the hearing system via a wireless connection. Each of the hearing devices comprises a signal processing unit comprising a sound propagation model of the acoustic propagation channel from the target sound source to the hearing device when worn by the user. The sound propagation model is configured to be used for estimating a direction-of-arrival of the target sound signal relative to the user.
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公开(公告)号：US20130128701A1
公开(公告)日：2013-05-23
申请号：US13521244
申请日：2011-02-16
IPC分类号： G01S3/803
CPC分类号： G01S3/803 , G01S3/8036 , H04R3/005
摘要： An audio source localization apparatus receives signals from a microphrine array (101), and a reference processor (105) generates at least three reference beams with different directional properties. An estimation processor (107) which generates simultaneous direction estimates for two sound sources, comprises a circuit (401) combining signals of the at least three reference beams with a beam shape parameter reflecting a shape of an audio beamform and a beam direction parameter reflecting a direction of an audio beamform for the combined signal. A cost processor (403) generates a cost measure indicative of an energy of the combined signal and a minimization processor (405) estimates values of the beam shape parameter and the beam direction parameter which correspond to a local minimum of the cost measure. A direction processor (407) then determines simultaneous direction estimates for two sound sources from the determined parameter values. Improved direction estimation for two simultaneous sound sources may be achieved.
摘要翻译： 音频源定位装置接收来自微行列阵（101）的信号，并且参考处理器（105）产生具有不同方向属性的至少三个参考光束。 产生用于两个声源的同时方向估计的估计处理器（107）包括将所述至少三个参考光束的信号与反映音频波束形状的波束形状参数组合的电路（401）和反映 组合信号的音频波束形式的方向。 成本处理器（403）产生指示组合信号的能量的成本度量，并且最小化处理器（405）估计对应于成本测量的局部最小值的波束形状参数和波束方向参数的值。 然后，方向处理器（407）根据确定的参数值确定两个声源的同时方向估计。 可以实现改进的两个同时声源的方向估计。
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公开(公告)号：US07817804B2
公开(公告)日：2010-10-19
申请号：US11027939
申请日：2005-01-04
申请人： Bernard Beguet
发明人： Bernard Beguet
IPC分类号： H04R3/00
CPC分类号： G01S3/8036 , G03H3/00 , H04R1/406 , H04R2201/401
摘要： This system has a plurality of microphones oriented in several directions and mounted in a support so that each one is flush with or disposed on a rigid surface, the various microphones being connected to a signal processing device that processes the signals coming from the microphones to provide a noise source hologram, namely a distribution of the acoustic pressures or intensities at various points on a given surface.
摘要翻译： 该系统具有多个朝向多个方向的麦克风并且安装在支撑件中，使得每个麦克风与刚性表面齐平或布置在刚性表面上，各种麦克风连接到处理来自麦克风的信号的信号处理装置，以提供 噪声源全息图，即在给定表面上的各个点处的声压或强度的分布。
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10.发明授权
公开(公告)号：US5729507A
公开(公告)日：1998-03-17
申请号：US733456
申请日：1985-05-13
申请人： Frank Massa , Donald P. Massa
发明人： Frank Massa , Donald P. Massa
CPC分类号： G01S3/803 , G01S3/8036 , G01S3/8038
摘要： The bearing accuracy and long-range sonar target detection capability of a multi-cardioid directional receiving hydrophone array is improved by electronically producing mirror images of the cardioid directional patterns of each directional hydrophone in the array whereby the number of receiving channels are effectively doubled by this invention which in turn results in higher signal-to-noise ratios especially when receiving distant relatively weaker sonar signals. As a result, the accuracy of measurement of target range and bearing by the improved directional hydrophone array will be significantly increased.
摘要翻译： 通过电子产生阵列中每个定向水听器的心形方向图的镜像，改善了多心型定向接收水听器阵列的方位精度和远距离声纳目标检测能力，由此接收通道的数量被这个 本发明又导致更高的信噪比，特别是当接收远距离相对较弱的声纳信号时。 因此，通过改进的定向水听器阵列的目标范围和方位的测量精度将显着增加。
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