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公开(公告)号：US20090012779A1
公开(公告)日：2009-01-08
申请号：US12073336
申请日：2008-03-04
IPC分类号： G10L21/00
CPC分类号： G10L21/0272 , H04R1/403
摘要： A sound source separation apparatus includes: an SIMO-ICA process unit, separating and generating an SIMO signal by the BSS method based on the ICA method; a sound source direction estimation unit, estimating a sound source direction based on a separating matrix, computed by a learning calculation of the BSS method based on the ICA method; a beamformer process unit, performing, on each SIMO signal, a beamformer process of enhancing, according to each frequency bin, a sound component from each sound source direction; an intermediate process unit, performing an intermediate process that includes performing a selection process, etc., according to each frequency bin on signals other than a specific signal among the beamformer processed sound signals; and an untargeted signal component elimination unit, eliminating noise signal components by comparing for one signal in the specific SIMO signal, volumes of the specific beam former processed sound signal and the intermediate processed signal according to each frequency bin.
摘要翻译： 声源分离装置包括：SIMO-ICA处理单元，基于ICA方法通过BSS方法分离和产生SIMO信号; 声源方向估计单元，基于通过基于所述ICA方法的所述BSS方法的学习计算而计算出的基于分离矩阵的声源方向; 波束形成处理单元，在每个SIMO信号上执行波束形成处理，根据每个频率仓，增强来自每个声源方向的声音分量; 中间处理单元，对波束形成处理声音信号中的特定信号以外的信号，根据每个频率块执行包括进行选择处理等的中间处理; 以及非目标信号分量消除单元，通过比较特定SIMO信号中的一个信号，根据每个频率仓，特定波束形成处理声音信号的体积和中间处理信号来消除噪声信号分量。
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公开(公告)号：US20090306973A1
公开(公告)日：2009-12-10
申请号：US12223069
申请日：2007-01-23
IPC分类号： G10L21/00
CPC分类号： G10L21/028
摘要： A sound source separation apparatus, includes: a plurality of sound input means into which a plurality of mixed sound signals in which sound source signals from a plurality of sound sources superimpose each other are input; first sound source separating means for separating and extracting SIMO signals corresponding to at least one sound source signal from the plurality of mixed sound signals by means of a sound source separation process of a blind source separation system based on an independent component analysis method; intermediate processing executing means for obtaining a plurality of intermediately processed signals by carrying out a predetermined intermediate processing including one of a selection process and a synthesizing process to a plurality of specified signals which is at least a part of the SIMO signals, for each of frequency components divided into a plurality; and second sound source separating means for obtaining separation signals corresponding to the sound source signals by applying a binary masking process to the plurality of intermediately processed signals or a part of the SIMO signals and the plurality of intermediately processed signals.
摘要翻译： 声源分离装置包括：多个声音输入装置，其中来自多个声源的声源信号彼此叠加的多个混合声音信号被输入其中; 第一声源分离装置，用于通过基于独立分量分析方法的盲源分离系统的声源分离处理从所述多个混合声音信号中分离和提取对应于至少一个声源信号的SIMO信号; 中间处理执行装置，用于针对频率的每一个，对包括至少一部分SIMO信号的多个指定信号执行包括选择处理和合成处理中的一个的预定中间处理，获得多个中间处理信号 组件分为多个; 以及第二声源分离装置，用于通过对多个中间处理信号或SIMO信号和多个中间处理信号的一部分应用二进制掩蔽处理来获得与声源信号相对应的分离信号。
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3.发明申请公开(公告)号：US20080267423A1
公开(公告)日：2008-10-30
申请号：US12078839
申请日：2008-04-07
申请人： Takashi Hiekata , Takashi Morita , Yohei Ikeda , Toshiaki Shimoda
发明人： Takashi Hiekata , Takashi Morita , Yohei Ikeda , Toshiaki Shimoda
IPC分类号： H04R3/00
CPC分类号： H04R3/005
摘要： An object sound extraction apparatus includes sound source separation sections for separating and generating an object sound separation signal corresponding to an object sound and reference sound separation signals corresponding to the other reference sound based on each combination of a main acoustic signal and sub acoustic signals, an object sound separation signal synthesis section for synthesizing the object sound separation signals, and a spectrum subtraction processing section for extracting an acoustic signal corresponding to the object sound from the synthesis signal by performing a spectrum subtraction processing between the synthesis signal and the reference sound separation signals. Accordingly, in acoustic environments where the object sound and the noises are mixed in the acoustic signals obtained via the microphones, and the mixed conditions can vary, a high object sound extraction performance can be ensured by a small object sound extraction apparatus.
摘要翻译： 对象声音提取装置包括声源分离部分，用于基于主声信号和副声信号的每个组合分离和产生对应于对象声音的对象声音分离信号和对应于其它参考声音的参考声音分离信号， 对象声音分离信号合成部分，用于合成对象声音分离信号;以及频谱减法处理部分，通过在合成信号和参考声音分离信号之间进行频谱减法处理，从合成信号中提取与对象声音相对应的声学信号 。 因此，在通过麦克风获得的声学信号中混合物体声音和噪声的声学环境中，并且混合条件可以变化，可以通过小物体声音提取装置来确保高目标声音提取性能。
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公开(公告)号：US20070133811A1
公开(公告)日：2007-06-14
申请号：US11603179
申请日：2006-11-22
IPC分类号： H04R5/00
CPC分类号： G10L21/0272
摘要： A sound source separation apparatus performs a temporary learning processing and a temporary separation processing with respect to each of a plurality of candidate matrixes (separating matrixes obtained by learning calculation based on input signals of different sound source conditions) stored on a candidate matrix memory in advance. The apparatus determines an initial matrix of the separating matrix based on the obtained correlation evaluation of the separated signals. The learning calculations of the initial matrix determination processing and separating matrix based on the initial matrix are performed at a time of the sound source separation processing by the apparatus and when a degree of correlation among the separated signals by a correlation evaluation part exceeds a predetermined level.
摘要翻译： 声源分离装置预先对存储在候选矩阵存储器上的多个候选矩阵（基于通过基于不同声源条件的输入信号的学习计算获得的分离矩阵）中的每一个进行临时学习处理和临时分离处理 。 该装置基于获得的分离信号的相关性评估来确定分离矩阵的初始矩阵。 基于初始矩阵的初始矩阵确定处理和分离矩阵的学习计算在设备的声源分离处理时执行，并且当由相关评估部分分离的信号之间的相关程度超过预定水平时 。
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公开(公告)号：US07650279B2
公开(公告)日：2010-01-19
申请号：US11819311
申请日：2007-06-26
申请人： Takashi Hiekata , Yohei Ikeda
发明人： Takashi Hiekata , Yohei Ikeda
IPC分类号： G10L19/14
CPC分类号： G10L21/0272
摘要： To shorten an output delay while a high sound source separation performance is ensured when a sound separation process based on an ICA method is performed. A second Fourier transform process execution cycle t2 for obtaining a second frequency-domain signal S1 used as an input signal of a filter process is set shorter than a first Fourier transform process execution cycle t1 for obtaining a first frequency-domain signal used for a learning computation of a separating matrix. When the time length of a second time-domain signal S1 is set shorter than a time length of a first time-domain signal S0, a second separating matrix used for a filter process is set by aggregating matrix components of a first separating matrix obtained through a learning calculation for every a plurality of groups.
摘要翻译： 在进行基于ICA方法的声音分离处理时，能够确保高音源分离性能的同时缩短输出延迟。 用于获得用作滤波处理的输入信号的第二频域信号S1的第二傅里叶变换处理执行周期t2被设置为比用于获得用于学习的第一频域信号的第一傅里叶变换处理执行周期t1短 分离矩阵的计算。 当第二时域信号S1的时间长度被设定为短于第一时域信号S0的时间长度时，用于滤波处理的第二分离矩阵通过聚合通过以下方式获得的第一分离矩阵的矩阵分量来设置： 每个组的学习计算。
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公开(公告)号：US20080027714A1
公开(公告)日：2008-01-31
申请号：US11819311
申请日：2007-06-26
申请人： Takashi Hiekata , Yohei Ikeda
发明人： Takashi Hiekata , Yohei Ikeda
IPC分类号： G10L19/02
CPC分类号： G10L21/0272
摘要： To shorten an output delay while a high sound source separation performance is ensured when a sound separation process based on an ICA method is performed. A second Fourier transform process execution cycle t2 for obtaining a second frequency-domain signal S1 used as an input signal of a filter process is set shorter than a first Fourier transform process execution cycle t1 for obtaining a first frequency-domain signal used for a learning computation of a separating matrix. When the time length of a second time-domain signal S1 is set shorter than a time length of a first time-domain signal S0, a second separating matrix used for a filter process is set by aggregating matrix components of a first separating matrix obtained through a learning calculation for every a plurality of groups.
摘要翻译： 在进行基于ICA方法的声音分离处理时，能够确保高音源分离性能的同时缩短输出延迟。 设置用于获得用作滤波处理的输入信号的第二频域信号S1的第二傅立叶变换处理执行周期t 2比用于获得使用的第一频域信号的第一傅立叶变换处理执行周期t 1设定得短 用于分离矩阵的学习计算。 当第二时域信号S1的时间长度被设定为短于第一时域信号S 0的时间长度时，用于滤波处理的第二分离矩阵通过聚合第一分离矩阵的矩阵分量来设置 通过每个组的学习计算获得。
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7.发明授权Belt meandering preventing device and belt meandering preventing method for running test device 有权皮带曲折防止装置和皮带曲折防止方法运行试验装置公开(公告)号：US08381902B2
公开(公告)日：2013-02-26
申请号：US12736857
申请日：2009-05-28
IPC分类号： B65G39/16
CPC分类号： G01M17/0074 , G05B19/19
摘要： A belt meandering preventing device 1 for a running test device 2 is provided with a first control means 14, a second control means 15, and a third control means. The first control means 14 detects the position of a belt 6 and controls a drum rocking means 8 so that the difference between the detected position of the belt 6 and a predetermined target position is zero. The second control means 14 detects the amount of rocking of a driven drum 5 rocked by the drum rocking means 8 and controls the drum rocking means 8 so that the detected amount of rocking of the driven drum 5 is a target amount of rocking.
摘要翻译： 用于行驶测试装置2的皮带曲折防止装置1设置有第一控制装置14，第二控制装置15和第三控制装置。 第一控制装置14检测皮带6的位置并控制滚筒摆动装置8，使得皮带6的检测位置与预定目标位置之间的差为零。 第二控制装置14检测由滚筒摆动装置8摇动的从动滚筒5的摆动量，并且控制滚筒摆动装置8，使得所检测到的从动滚筒5的摆动量是目标摆动量。
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8.发明申请BELT MEANDERING PREVENTING DEVICE AND BELT MEANDERING PREVENTING METHOD FOR RUNNING TEST DEVICE 有权皮带预防装置和皮带装置防止运行试验装置的方法公开(公告)号：US20110066291A1
公开(公告)日：2011-03-17
申请号：US12736857
申请日：2009-05-28
CPC分类号： G01M17/0074 , G05B19/19
摘要： A belt meandering preventing device 1 for a running test device 2 is provided with a first control means 14, a second control means 15, and a third control means. The first control means 14 detects the position of a belt 6 and controls a drum rocking means 8 so that the difference between the detected position of the belt 6 and a predetermined target position is zero. The second control means 14 detects the amount of rocking of a driven drum 5 rocked by the drum rocking means 8 and controls the drum rocking means 8 so that the detected amount of rocking of the driven drum 5 is a target amount of rocking.
摘要翻译： 用于行驶测试装置2的皮带曲折防止装置1设置有第一控制装置14，第二控制装置15和第三控制装置。 第一控制装置14检测皮带6的位置并控制滚筒摆动装置8，使得皮带6的检测位置与预定目标位置之间的差为零。 第二控制装置14检测由滚筒摆动装置8摇动的从动滚筒5的摆动量，并且控制滚筒摆动装置8，使得所检测到的从动滚筒5的摆动量是目标摆动量。
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公开(公告)号：US20070025556A1
公开(公告)日：2007-02-01
申请号：US11489441
申请日：2006-07-20
申请人： Takashi Hiekata
发明人： Takashi Hiekata
IPC分类号： H04R5/00
CPC分类号： H04S1/007 , G10L21/0272 , G10L2021/02166
摘要： A sound source separation apparatus includes a first sound source separation unit that performs blind source separation based on independent component analysis to separate a sound source signal from a plurality of mixed sound signals, thereby generating a first separated signal; a second sound source separation unit that performs real-time sound source separation by using a method other than the blind source separation based on independent component analysis to generate a second separated signal; and a multiplexer that selects one of the first separated signal and the second separated signal as an output signal. The first sound source separation unit continues processing regardless of the selection state of the multiplexer. When the first separated signal is selected as an output signal, the number of sequential calculations of a separating matrix performed in the first sound source separation unit is limited to a number that allows for real-time processing.
摘要翻译： 声源分离装置包括：第一声源分离单元，其基于独立分量分析执行盲源分离，以将声源信号与多个混合声音信号分离，从而产生第一分离信号; 第二声源分离单元，其通过使用基于独立分量分析的盲源分离以外的方法来执行实时声源分离，以产生第二分离信号; 以及选择第一分离信号和第二分离信号之一作为输出信号的多路复用器。 无论多路复用器的选择状态如何，第一声源分离单元继续处理。 当选择第一分离信号作为输出信号时，在第一声源分离单元中执行的分离矩阵的顺序计算的数量被限制为允许实时处理的数量。
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公开(公告)号：US20070025564A1
公开(公告)日：2007-02-01
申请号：US11490147
申请日：2006-07-21
申请人： Takashi Hiekata , Hiroshi Hashimoto
发明人： Takashi Hiekata , Hiroshi Hashimoto
IPC分类号： H04B15/00
CPC分类号： H04H60/04 , G10L21/0272
摘要： A sound source separation apparatus performs a discrete Fourier transform on each of a plurality of mixed sound signals for a predetermined time length in a time domain and sequentially transforms the mixed sound signals to mixed sound signals in a frequency domain. The apparatus allocates learning calculations of a separating matrix using a blind source separation based on independent component analysis to a plurality of DSPs for each of separate mixed sound signals generated by separating the frequency-domain-based mixed sound signal into a plurality of pieces with respect to frequency range and causes the DSPs to perform the learning calculations in parallel so as to sequentially output the separating matrix. The apparatus generates a separated signal corresponding to the sound source signal from the frequency-domain-based mixed sound signal by performing a matrix calculation using the separating matrix and performs an inverse discrete Fourier transform on the separated signal.
摘要翻译： 声源分离装置在时域中对预定时间长度的多个混合声音信号中的每一个进行离散傅里叶变换，并且将混合声音信号顺序地变换为频域中的混合声音信号。 该装置使用基于独立分量分析的盲源分离的分离矩阵的学习计算，对于通过将基于频域的混合声音信号分离成多个片段而产生的各个混合声音信号，与多个DSP相关 到频率范围，并使DSPs并行执行学习计算，以便顺序地输出分离矩阵。 该装置通过使用分离矩阵执行矩阵计算，从基于频域的混合声音信号生成对应于声源信号的分离信号，并对分离的信号执行离散傅里叶逆变换。
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