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1. 发明申请

WO2015062658A1 SYSTEM AND METHOD FOR EVALUATING AN ACOUSTIC TRANSFER FUNCTION 审中-公开
标题翻译：用于评估声学传递函数的系统和方法
公开(公告)号：WO2015062658A1
公开(公告)日：2015-05-07
申请号：PCT/EP2013/072833
申请日：2013-10-31
申请人： HUAWEI TECHNOLOGIES CO., LTD. , JIN, Wenyu , KLEIJN, Willem Bastiaan , LANG, Yue , GROSCHE, Peter
发明人： JIN, Wenyu , KLEIJN, Willem Bastiaan , LANG, Yue , GROSCHE, Peter
IPC分类号： H04R29/00 , H04S7/00
CPC分类号： H04S7/30 , H04S7/301 , H04S2420/01
摘要： A system (100) and a method for evaluating an acoustic transfer function, wherein the acoustic transfer function is a transfer function from one acoustic source to a reproduction area (RA) sampled by a limited number of microphone modules (120).
摘要翻译：一种系统（100）和用于评估声学传递函数的方法，其中所述声学传递函数是从一个声源到由有限数量的麦克风模块（120）采样的再现区域（RA）的传递函数。

2. 发明申请

WO2014082683A1 AUDIO RENDERING SYSTEM 审中-公开
标题翻译：音频渲染系统
公开(公告)号：WO2014082683A1
公开(公告)日：2014-06-05
申请号：PCT/EP2012/074146
申请日：2012-11-30
申请人： HUAWEI TECHNOLOGIES CO., LTD. , JIN, Wenyu , KLEIJN, Willem Bastiaan , VIRETTE, David
发明人： JIN, Wenyu , KLEIJN, Willem Bastiaan , VIRETTE, David
IPC分类号： H04S7/00
CPC分类号： H04S7/307 , H04S7/30 , H04S2400/11
摘要： The invention relates to an audio rendering system (100), comprising: a plurality of loudspeakers (102) arranged to approximate a desired spatial sound field within a predetermined reproduction region (130), wherein the loudspeakers (102) are configured to approximate the sound field based on a weighted series of orthonormal basis functions for the reproduction region (130).
摘要翻译：本发明涉及一种音频再现系统（100），包括：多个扬声器（102），布置成在预定再现区域（130）内接近期望的空间声场，其中所述扬声器（102）被配置为近似声音基于用于再现区域（130）的加权系数的正交基函数。

3. 发明申请

WO2017063706A1 A SOUND PROCESSING NODE OF AN ARRANGEMENT OF SOUND PROCESSING NODES 审中-公开
标题翻译：声音处理节点安排的声音处理节点
公开(公告)号：WO2017063706A1
公开(公告)日：2017-04-20
申请号：PCT/EP2015/073907
申请日：2015-10-15
申请人： HUAWEI TECHNOLOGIES CO., LTD. , LANG, Yue , JIN, Wenyu
发明人： LANG, Yue , JIN, Wenyu , SHERSON, Thomas , HEUSDENS, Richard , KLEIJN, Willem Bastiaan
IPC分类号： H04R3/00
CPC分类号： H04R3/005 , G10L21/0208 , G10L2021/02166 , H04R2201/401 , H04R2420/07
摘要： The invention relates to a sound processing node (101a) for an arrangement (100) of sound processing nodes (100a-c), the sound processing nodes (101a-c) being configured to receive a plurality of sound signals, wherein the sound processing node (101a) comprises a processor (103a) configured to determine a beam forming signal on the basis of the plurality of sound signals weighted by a plurality of weights, wherein the processor (103a) is configured to determine the plurality of weights using a transformed version of a linearly constrained minimum variance approach, the transformed version of the linearly constrained minimum variance approach being obtained by applying a convex relaxation to the linearly constrained minimum variance approach.
摘要翻译：本发明涉及用于声音处理节点（100a-c）的布置（100）的声音处理节点（101a），声音处理节点（101a-c）被配置为接收多个，其中所述声音处理节点（101a）包括处理器（103a），其被配置为基于由多个权重加权的所述多个声音信号来确定波束形成信号，其中所述处理器（103a）被配置为：使用线性约束最小方差方法的变换版本来确定多个权重，通过对线性约束最小方差方法应用凸松弛来获得线性约束最小方差方法的变换版本。

4. 发明申请

WO2013120510A1 A METHOD AND APPARATUS FOR PERFORMING AN ADAPTIVE DOWN- AND UP-MIXING OF A MULTI-CHANNEL AUDIO SIGNAL 审中-公开
标题翻译：用于执行多通道音频信号的自适应下行和上混合的方法和装置
公开(公告)号：WO2013120510A1
公开(公告)日：2013-08-22
申请号：PCT/EP2012/052443
申请日：2012-02-14
申请人： HUAWEI TECHNOLOGIES CO., LTD. , VIRETTE, David , KLEJSA, Janusz , KLEIJN, Willem Bastiaan
发明人： VIRETTE, David , KLEJSA, Janusz , KLEIJN, Willem Bastiaan
IPC分类号： G10L19/00
CPC分类号： G10L19/008
摘要： A method and apparatus for performing an adaptive down-mixing of a multichannel audio signal comprising a number of input channels,wherein a signal adaptive transformation of said input channels is performed by multiplying the input channels with a downmix block matrix comprising a fixed block for providing a set of backward compatible primary channels and a signal adaptive block for providing a set of secondary channels.
摘要翻译：一种用于执行包括多个输入通道的多通道音频信号的自适应降混的方法和装置，其中所述输入通道的信号自适应变换通过将输入通道与包括固定块的下混块矩阵相乘来进行，以提供一组向后兼容的主信道和用于提供一组次信道的信号自适应块。

5. 发明申请

WO2013026196A1 ESTIMATOR FOR ESTIMATING A PROBABILITY DISTRIBUTION OF A QUANTIZATION INDEX 审中-公开
标题翻译：估计定量指标的概率分布的估计
公开(公告)号：WO2013026196A1
公开(公告)日：2013-02-28
申请号：PCT/CN2011/078774
申请日：2011-08-23
申请人： HUAWEI TECHNOLOGIES CO., LTD. , KLEJSA, Janusz , LI, Minyue , KLEIJN, Willem Bastiaan
发明人： KLEJSA, Janusz , LI, Minyue , KLEIJN, Willem Bastiaan
IPC分类号： G06F17/50
CPC分类号： H03M7/00 , H03M7/3079 , H04N19/463 , H04N19/91
摘要： Estimator for estimating a probability distribution of a quantization index The invention relates to an estimator (1007) for estimating a probability distribution of a quantization index generated from a source coder encoding a source signal, into a sequence of quantization indices, the source signal being described by a signal model, the source coder providing a current quantization index and current side information, the estimator being configured to obtain auxiliary parameters based on a configuration of the source coder and the current available side information and the signal model, the estimator being further configured to adaptively update the probability distribution of a quantization index upon the basis of a probability density function relating to a previous state of the estimator, the auxiliary parameters, the current quantization index and the current side information.
摘要翻译：用于估计量化索引的概率分布的估计器技术领域本发明涉及一种用于估计从编码源信号的源编码器生成的量化索引的概率分布的量化索引的估计器，通过信号模型，源编码器提供当前量化索引和当前侧信息，所述估计器被配置为基于源编码器和当前可用侧信息和信号模型的配置来获得辅助参数，所述估计器进一步配置基于与估计器的先前状态，辅助参数，当前量化索引和当前侧信息相关的概率密度函数来自适应地更新量化索引的概率分布。

6. 发明申请

WO2020064089A1 DETERMINING A ROOM RESPONSE OF A DESIRED SOURCE IN A REVERBERANT ENVIRONMENT 审中-公开
公开(公告)号：WO2020064089A1
公开(公告)日：2020-04-02
申请号：PCT/EP2018/075994
申请日：2018-09-25
申请人： HUAWEI TECHNOLOGIES CO., LTD. , JIN, Wenyu
发明人： JIN, Wenyu , SHERSON, Thomas , KLEIJN, Willem Bastiaan , SETIAWAN, Panji
IPC分类号： G10L21/0208 , G10L21/0272 , G01H7/00 , G10L21/0216 , G10L21/038 , H04R3/00
摘要： The present disclosure relates to an apparatus and method for determining a room response of a desired source in a reverberant environment from an observed signal received by a plurality of microphones, wherein a direct-path steering vector for the plurality of microphones is determined based on a known direction and/or location of the desired source, a reverberant- path steering vector for the plurality of microphones is determined that maximizes a cross moment of a direct-path response to the observed signal and a reverberant-path response to the observed signal, and the room response is determined based on a combination of the direct-path steering vector and the reverberant-path steering vector. The signal power contained in the reverberant components of the observed signal is hence used to improve the signal-to-interference-plus-noise ratio of the target signal without additional knowledge as compared to a conventional direct-path beamformer.

7. 发明申请

WO2020083479A1 A SOUND PROCESSING APPARATUS AND METHOD 审中-公开
公开(公告)号：WO2020083479A1
公开(公告)日：2020-04-30
申请号：PCT/EP2018/079141
申请日：2018-10-24
申请人： HUAWEI TECHNOLOGIES CO., LTD. , JIN, Wenyu
发明人： JIN, Wenyu , SETIAWAN, Panji , SHERSON, Thomas , KLEIJN, Willem Bastiaan
IPC分类号： H04R3/00
摘要： The invention relates to a sound processing apparatus (100) comprising a plurality of nodes (101a-f), wherein each node (101a-f) is configured to receive a sound signal from one or more sound sources. The plurality of nodes define a tree with a root node (101a), a plurality of non-root nodes (101b-f), including one or more leaf nodes, and a plurality of edges connecting the plurality of nodes, wherein each leaf node defines a branch of the tree and each node (101a-f) is configured to communicate via one or more of the plurality of edges with one or more other nodes of the plurality of nodes (101a-f). Each node (101a-f) is configured for each of the one or more sound sources (i) to determine a filtering coefficient on the basis of one or more relative transfer functions associated with the respective node and the one or more sound sources and (ii) apply the filtering coefficient to the respective sound signal for obtaining a respective filtered sound signal. The root node (101a) is configured for each of the one or more sound sources to determine an output sound signal by aggregating the plurality of filtered sound signals from each node (101a-f). Moreover, the invention relates to a corresponding sound processing method.

8. 发明申请

WO2009045148A1 METHOD AND APPARATUS FOR MULTIPLE DESCRIPTION CODING 审中-公开
标题翻译：多种描述编码的方法和装置
公开(公告)号：WO2009045148A1
公开(公告)日：2009-04-09
申请号：PCT/SE2008/050355
申请日：2008-03-28
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (publ) , KUROPATWINSKI, Marcin , KLEJSA, Janusz , KLEIJN, Willem Bastiaan
发明人： KUROPATWINSKI, Marcin , KLEJSA, Janusz , KLEIJN, Willem Bastiaan
IPC分类号： H03M13/35
CPC分类号： H03M7/30 , H03M7/3057 , H03M13/353 , H04B7/0632 , H04B7/0634 , H04L5/0057
摘要： The present invention relates to a method and apparatus to be used in designing an index assignment matrix for use in multiple description coding of an information signal. The bandwidth of the index assignment matrix is selected in dependence of transmission condition information relating to a transmission condition of a communication channel onto which a description of the information signal can be transmitted.
摘要翻译：本发明涉及一种用于设计用于信息信号的多重描述编码的索引分配矩阵的方法和装置。根据与可以发送信息信号的描述的通信信道的发送条件相关的发送条件信息来选择索引分配矩阵的带宽。

9. 发明申请

WO2010066496A1 DELAY ESTIMATOR 审中-公开
标题翻译：延迟估计
公开(公告)号：WO2010066496A1
公开(公告)日：2010-06-17
申请号：PCT/EP2009/063707
申请日：2009-10-20
申请人： GLOBAL IP SOLUTIONS (GIPS) AB , GLOBAL IP SOLUTIONS, INC. , KLEIJN, Willem Bastiaan
发明人： KLEIJN, Willem Bastiaan
IPC分类号： H04M9/08
CPC分类号： H04M9/082 , H04B3/46
摘要： The present invention provides a method and apparatus for finding an estimate of the delay of a signal travelling between two points. A quantity is evaluated from the signal at a final number of time instants, at both a reference point and a reception point. The values are quantized by comparison with a threshold adapted to a typical magnitude of the quantity. If the quantized values from the reception point are shifted back by the true delay with respect to the quantized values from the reference point, then certain co-occurrences of quantized values have very low probability. Hence, the best delay estimate is that shift which yields the least number of low-probability co-occurrences.
摘要翻译：本发明提供了一种用于找到在两点之间行进的信号的延迟的估计的方法和装置。在最后数量的时刻，在参考点和接收点处，从信号中估算出一个数量。通过与适应于数量的典型量值的阈值进行比较来量化该值。如果来自接收点的量化值相对于从参考点的量化值移回真实延迟，则量化值的某些共同出现具有非常低的概率。因此，最佳延迟估计是产生最少数量的低概率共同出现的偏移。

10. 发明申请

WO2011033103A1 CODING AND DECODING OF SOURCE SIGNALS USING CONSTRAINED RELATIVE ENTROPY QUANTIZATION 审中-公开
标题翻译：使用约束相关熵定标对源信号进行编码和解码
公开(公告)号：WO2011033103A1
公开(公告)日：2011-03-24
申请号：PCT/EP2010/063789
申请日：2010-09-20
申请人： GLOBAL IP SOLUTIONS (GIPS) AB , GLOBAL IP SOLUTIONS, INC. , KLEIJN, Willem Bastiaan , LI, Minyue
发明人： KLEIJN, Willem Bastiaan , LI, Minyue
IPC分类号： G10L19/00 , H03M7/30 , H04N7/26
CPC分类号： G10L19/00
摘要： Methods and devices for encoding and decoding are provided. A source signal value is encoded by a quantization index determined using a partition into quantization cells. Decoding of the quantization index takes place by sampling a reconstruction probability distribution, thereby obtaining a reconstructed signal value, such that the reconstructed signal value lies in the same quantization cell as the source signal value. In one embodiment, encoding and decoding are such that their succession preserves the source signal distribution. In another embodiment, the partition and the reconstruction probability distribution are determined in such manner that the quantization error is minimized subject to a constraint on the relative entropy between the source signal and the reconstructed signal.
摘要翻译：提供了用于编码和解码的方法和装置。源信号值由使用分区确定的量化单元的量化索引进行编码。通过对重构概率分布进行采样来进行量化索引的解码，从而获得重构信号值，使得重构信号值位于与源信号值相同的量化单元中。在一个实施例中，编码和解码使得它们的继承保持源信号分布。在另一个实施例中，以这样的方式确定分区和重建概率分布，使得在对源信号和重建信号之间的相对熵的约束下，量化误差被最小化。

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