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公开(公告)号：US09100053B2
公开(公告)日：2015-08-04
申请号：US14087080
申请日：2013-11-22
CPC分类号： H03M7/4006 , H03M7/3059 , H03M7/40 , H03M13/29 , H04B1/04 , H04N19/30 , H04N19/44
摘要： In a method for reconstructing a source signal, which is encoded by a set of at least two descriptions, the method comprises: receiving a subset of the set of descriptions; reconstructing a reconstructed signal at an operating bitrate of a set of operating bitrates upon the basis of the subset of descriptions, the reconstructed signal having a second probability density, wherein the second probability density comprises a first statistical moment and a second statistical moment; and manipulating the reconstructed signal, wherein the reconstructed signal is manipulated such that, irrespective of the operating bitrate, a predetermined minimum similarity between the first statistical moment of the third probability density and the first statistical moment of the first probability density and between the second statistical moment of the third probability density and the second statistical moment of the first probability density is maintained.
摘要翻译： 在用于重建由一组至少两个描述编码的源信号的方法中，所述方法包括：接收所述一组描述的子集; 基于所述描述子集，以一组操作比特率的操作比特率来重建重构信号，所述重建信号具有第二概率密度，其中所述第二概率密度包括第一统计矩和第二统计矩; 以及操纵所述重构信号，其中所述重构信号被操纵，使得与所述操作比特率无关地，所述第三概率密度的所述第一统计时刻与所述第一概率密度的第一统计时刻之间的预定最小相似度与所述第二统计 保持第三概率密度的时刻和第一概率密度的第二统计矩。
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2.发明申请公开(公告)号：US20140191888A1
公开(公告)日：2014-07-10
申请号：US14186237
申请日：2014-02-21
发明人： Janusz Klejsa , Minyue Li , Willem Bastiaan Kleijn
IPC分类号： H03M7/00
CPC分类号： H03M7/00 , H03M7/3079 , H04N19/463 , H04N19/91
摘要： The invention relates to an estimator 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： 本发明涉及一种用于估计从编码源信号的源编码器产生的量化索引的概率分布的估计器，其被编码为量化索引序列，源信号由信号模型描述，源编码器提供当前量化索引 以及当前侧信息，所述估计器被配置为基于所述源编码器和所述当前可用侧信息和所述信号模型的配置来获得辅助参数，所述估计器还被配置为在基础上自适应地更新量化索引的概率分布 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。
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公开(公告)号：US09774981B2
公开(公告)日：2017-09-26
申请号：US14725063
申请日：2015-05-29
发明人： Wenyu Jin , Willem Bastiaan Kleijn , David Virette
IPC分类号： H04S7/00
CPC分类号： H04S7/307 , H04S7/30 , H04S2400/11
摘要： An audio rendering system is provided that comprises a plurality of loudspeakers arranged to approximate a desired spatial sound field within a predetermined reproduction region, wherein the loudspeakers are configured to approximate the sound field based on a weighted series of orthonormal basis functions for the reproduction region.
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公开(公告)号：US20160249152A1
公开(公告)日：2016-08-25
申请号：US15142063
申请日：2016-04-29
发明人： Wenyu Jin , Willem Bastiaan Kleijn , Yue Lang , Peter Grosche
IPC分类号： H04S7/00
CPC分类号： H04S7/30 , H04S7/301 , H04S2420/01
摘要： A system 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 sampled by a limited number of microphone modules.
摘要翻译： 一种用于评估声学传递函数的系统和方法，其中声学传递函数是从一个声源到由有限数量的麦克风模块采样的再现区域的传递函数。
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公开(公告)号：US09287895B2
公开(公告)日：2016-03-15
申请号：US14751359
申请日：2015-06-26
CPC分类号： H03M7/4006 , H03M7/3059 , H03M7/40 , H03M13/29 , H04B1/04 , H04N19/30 , H04N19/44
摘要： In a method for reconstructing a source signal, which is encoded by a set of at least two descriptions, the method comprises: receiving a subset of the set of descriptions; reconstructing a reconstructed signal at an operating bitrate of a set of operating bitrates upon the basis of the subset of descriptions, the reconstructed signal having a second probability density, wherein the second probability density comprises a first statistical moment and a second statistical moment; and manipulating the reconstructed signal, wherein the reconstructed signal is manipulated such that, irrespective of the operating bitrate, a predetermined minimum similarity between a first statistical moment of a third probability density and a first statistical moment of a first probability density and between a second statistical moment of the third probability density and a second statistical moment of the first probability density is maintained.
摘要翻译： 在用于重建由一组至少两个描述编码的源信号的方法中，所述方法包括：接收所述一组描述的子集; 基于所述描述子集，以一组操作比特率的操作比特率来重建重构信号，所述重建信号具有第二概率密度，其中所述第二概率密度包括第一统计矩和第二统计矩; 以及操纵所述重建信号，其中所述重构信号被操纵，使得与第一概率密度的第一统计矩和第一概率密度的第一统计矩之间的第一统计矩和第二概率密度之间的预定最小相似度与运算比特率无关， 保持第三概率密度的时刻和第一概率密度的第二统计矩。
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公开(公告)号：US20150264510A1
公开(公告)日：2015-09-17
申请号：US14725063
申请日：2015-05-29
发明人： Wenyu Jin , Willem Bastiaan Kleijn , David Virette
IPC分类号： H04S7/00
CPC分类号： H04S7/307 , H04S7/30 , H04S2400/11
摘要： An audio rendering system is provided that comprises a plurality of loudspeakers arranged to approximate a desired spatial sound field within a predetermined reproduction region, wherein the loudspeakers are configured to approximate the sound field based on a weighted series of orthonormal basis functions for the reproduction region.
摘要翻译： 提供了一种音频再现系统，其包括布置成在预定再现区域内近似所需空间声场的多个扬声器，其中扬声器被配置为基于用于再现区域的加权的一系列正交基函数近似声场。
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公开(公告)号：US10984818B2
公开(公告)日：2021-04-20
申请号：US16270274
申请日：2019-02-07
发明人： Wei Xiao , Mona Hakami , Willem Bastiaan Kleijn
摘要： The disclosure relates to an apparatus for determining a quality score (MOS) for an audio signal sample, the apparatus comprising: an extractor configured to extract a feature vector from the audio signal sample, wherein the feature vector comprises a plurality of feature values and wherein each feature value is associated to a different feature of the feature vector; a pre-processor configured to pre-process a feature value of the feature vector based on a cumulative distribution function associated to the feature represented by the feature value to obtain a pre-processed feature value; and a processor configured to implement a neural network and to determine the quality score (MOS) for the audio signal sample based on the pre-processed feature value and a set of neural network parameters for the neural network associated to the cumulative distribution function.
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公开(公告)号：US10313785B2
公开(公告)日：2019-06-04
申请号：US15940635
申请日：2018-03-29
IPC分类号： H04R3/00 , H04R1/40 , G10L21/0208 , G10L21/0216 , G10L21/0232
摘要： A sound processing node for an arrangement of sound processing nodes is disclosed. The sound processing nodes being configured to receive a plurality of sound signals, wherein the sound processing node comprises a processor configured to determine a beamforming signal on the basis of the plurality of sound signals weighted by a plurality of weights, wherein the processor 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.
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公开(公告)号：US20150295590A1
公开(公告)日：2015-10-15
申请号：US14751359
申请日：2015-06-26
CPC分类号： H03M7/4006 , H03M7/3059 , H03M7/40 , H03M13/29 , H04B1/04 , H04N19/30 , H04N19/44
摘要： In a method for reconstructing a source signal, which is encoded by a set of at least two descriptions, the method comprises: receiving a subset of the set of descriptions; reconstructing a reconstructed signal at an operating bitrate of a set of operating bitrates upon the basis of the subset of descriptions, the reconstructed signal having a second probability density, wherein the second probability density comprises a first statistical moment and a second statistical moment; and manipulating the reconstructed signal, wherein the reconstructed signal is manipulated such that, irrespective of the operating bitrate, a predetermined minimum similarity between a first statistical moment of a third probability density and a first statistical moment of a first probability density and between a second statistical moment of the third probability density and a second statistical moment of the first probability density is maintained.
摘要翻译： 在用于重建由一组至少两个描述编码的源信号的方法中，所述方法包括：接收所述一组描述的子集; 基于所述描述子集，以一组操作比特率的操作比特率来重建重构信号，所述重建信号具有第二概率密度，其中所述第二概率密度包括第一统计矩和第二统计矩; 以及操纵所述重建信号，其中所述重构信号被操纵，使得与第一概率密度的第一统计矩和第一概率密度的第一统计矩之间的第一统计矩和第二概率密度之间的预定最小相似度与运算比特率无关， 保持第三概率密度的时刻和第一概率密度的第二统计矩。
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10.发明授权公开(公告)号：US09041568B2
公开(公告)日：2015-05-26
申请号：US14186237
申请日：2014-02-21
发明人： Janusz Klejsa , Minyue Li , Willem Bastiaan Kleijn
IPC分类号： H03M7/00 , H03M7/30 , H04N19/463 , H04N19/91
CPC分类号： H03M7/00 , H03M7/3079 , H04N19/463 , H04N19/91
摘要： The invention relates to an estimator 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： 本发明涉及一种用于估计从编码源信号的源编码器产生的量化索引的概率分布的估计器，其被编码为量化索引序列，源信号由信号模型描述，源编码器提供当前量化索引 以及当前侧信息，所述估计器被配置为基于所述源编码器和所述当前可用侧信息和所述信号模型的配置来获得辅助参数，所述估计器还被配置为在基础上自适应地更新量化索引的概率分布 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。
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