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1. 发明申请

WO2006111294A1 ENERGY DEPENDENT QUANTIZATION FOR EFFICIENT CODING OF SPATIAL AUDIO PARAMETERS 审中-公开
标题翻译：有效编码空间音频参数的能量依赖性量化
公开(公告)号：WO2006111294A1
公开(公告)日：2006-10-26
申请号：PCT/EP2006/003284
申请日：2006-04-10
申请人： CODING TECHNOLOGIES AB , FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , KONINKLIJKE PHILIPS ELECTRONICS N.V. , ROEDEN, Jonas , ENGDEGARD, Jonas , PURNHAGEN, Heiko , BREEBAART, Jeroen , SCHUIJERS, Erik , VAN DE PAR, Steven , HILPERT, Johannes , HERRE, Juergen
发明人： ROEDEN, Jonas , ENGDEGARD, Jonas , PURNHAGEN, Heiko , BREEBAART, Jeroen , SCHUIJERS, Erik , VAN DE PAR, Steven , HILPERT, Johannes , HERRE, Juergen
IPC分类号： G10L19/00
CPC分类号： G10L19/03 , G10L19/008
摘要： Parameters being a measure for a characteristic of a channel or of a pair of channels, wherein the parameter is a measure for a characteristic of the channel or of the pair of channels with respect to another channel of a multi-channel signal can be quantized more efficiently using a quantization rule that is generated based on a relation of an energy measure of the channel or the pair of channels and an energy measure of the multi-channel signal. With generation of the quantization rule taking into account a psycho acoustic approach, the size of an encoded representation of the multi-channel signal can be decreased by coarser quantization without significantly disturbing the perceptual quality of the multi-channel signal when reconstructed from the encoded representation.
摘要翻译：参数是用于信道或一对信道特性的度量，其中参数是相对于多信道信号的另一信道的信道或信道对的特性的度量可以被更多地量化有效地使用基于信道的能量测量或信道对的关系产生的量化规则和多信道信号的能量测量。考虑到心理声学方法的生成量化规则，可以通过较粗略的量化来减少多信道信号的编码表示的大小，而不会在从编码表示重构时显着干扰多信道信号的感知质量。

2. 发明申请

WO2006108462A1 MULTI-CHANNEL HIERARCHICAL AUDIO CODING WITH COMPACT SIDE-INFORMATION 审中-公开
标题翻译：多通道分层音频编码与紧凑的信息
公开(公告)号：WO2006108462A1
公开(公告)日：2006-10-19
申请号：PCT/EP2006/000875
申请日：2006-02-01
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , CODING TECHNOLOGIES AB , KONINKLIJKE PHILIPS ELECTRONICS N.V. , HOELZER, Andreas , HERRE, Juergen , ROEDEN, Jonas , PURNHAGEN, Heiko , KJOERLING, Kristofer , ENGDEGARD, Jonas , BREEBAART, Jeroen , SCHUIJERS, Erik , OOMEN, Werner , VILLEMOES, Lars
发明人： HOELZER, Andreas , HERRE, Juergen , ROEDEN, Jonas , PURNHAGEN, Heiko , KJOERLING, Kristofer , ENGDEGARD, Jonas , BREEBAART, Jeroen , SCHUIJERS, Erik , OOMEN, Werner , VILLEMOES, Lars
IPC分类号： G10L19/00 , H04S3/00
CPC分类号： G10L19/008 , H04S3/00 , H04S2420/03
摘要： A parametric representation of a multi-channel audio signal describes the spatial properties of the audio signal well with compact side information when a coherence information, describing the coherence between a first and a second channel, is derived within a hierarchical encoding process only for channel pairs including a first channel having only information of a left side with respect to a listening position and including a second channel having only information from a right side with respect to a listening position. As within the hierarchical process the multiple audio channels of the audio signal are downmixed iteratively into monophonic channels, one can pick the relevant parameters from an encoding step involving only channel pairs carrying the information needed to describe the spatial properties of the multi-channel audio signal.
摘要翻译：多通道音频信号的参数化表示利用紧凑的侧信息来描述音频信号的空间属性，当描述第一和第二信道之间的相干性的相干信息仅在信道对的分级编码处理中导出时包括仅具有相对于收听位置的左侧的信息的第一频道，并且包括仅具有相对于收听位置的右侧的信息的第二频道。如在分层处理中，音频信号的多个音频通道被迭代地下混合成单声道，可以从仅涉及携带描述多声道音频信号的空间属性所需的信息的信道对的编码步骤中选择相关参数。

3. 发明申请

WO2006108456A1 APPARATUS AND METHOD FOR GENERATING MULTI-CHANNEL SYNTHESIZER CONTROL SIGNAL AND APPARATUS AND METHOD FOR MULTI-CHANNEL SYNTHESIZING 审中-公开
标题翻译：用于产生多通道合成器控制信号的装置和方法以及用于多通道合成的装置和方法
公开(公告)号：WO2006108456A1
公开(公告)日：2006-10-19
申请号：PCT/EP2006/000455
申请日：2006-01-19
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , CODING TECHNOLOGIES AB , KONINKLIJKE PHILIPS ELECTRONICS N.V. , NEUSINGER, Matthias , HERRE, Juergen , DISCH, Sascha , PURNHAGEN, Heiko , KJOERLING, Kristofer , ENGDEGARD, Jonas , BREEBAART, Jeroen , SCHUIJERS, Erik , OOMEN, Werner
发明人： NEUSINGER, Matthias , HERRE, Juergen , DISCH, Sascha , PURNHAGEN, Heiko , KJOERLING, Kristofer , ENGDEGARD, Jonas , BREEBAART, Jeroen , SCHUIJERS, Erik , OOMEN, Werner
IPC分类号： G10L19/14 , H04S5/00
CPC分类号： G10L19/26 , G10L19/008 , G10L2019/0012 , H04S3/008
摘要： On an encoder-side, a multi-channel audio input signal is analyzed for obtaining smoothing control information, which is to be used by a decoder-side multi-channel audio synthesis for smoothing quantized transmitted parameters or values derived from the quantized transmitted parameters for providing an improved subjective audio quality in particular for slowly moving point sources and rapidly moving point sources having tonal material such as fast moving sinusoids.
摘要翻译：在编码器侧，分析多声道音频输入信号以获得平滑控制信息，该平滑控制信息将被解码器侧多声道音频合成用于平滑量化的发送参数或从量化的发送参数导出的值提供了改进的主观音频质量，特别是用于缓慢移动的点源和具有诸如快速移动的正弦曲线之类的音调材料的快速移动的点源。

4. 发明申请

WO2006108543A1 TEMPORAL ENVELOPE SHAPING OF DECORRELATED SIGNAL 审中-公开
标题翻译：装饰信号的时间包装形状
公开(公告)号：WO2006108543A1
公开(公告)日：2006-10-19
申请号：PCT/EP2006/003097
申请日：2006-04-05
申请人： CODING TECHNOLOGIES AB , FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , KJOERLING, Kristofer , VILLEMOES, Lars , HERRE, Juergen , DISCH, Sascha
发明人： KJOERLING, Kristofer , VILLEMOES, Lars , HERRE, Juergen , DISCH, Sascha
IPC分类号： H04S3/00
CPC分类号： H04S7/307 , G10L19/008 , G10L19/02 , G10L19/26 , H04S3/00 , H04S5/005 , H04S2420/03
摘要： The temporal envelope of a decorrelated signal derived from an original signal can be shaped without introducing additional distortion, when a spectral flattener is used to spectrally flatten the spectrum of the decorrelated signal and the original signal prior to using the flattened spectra for deriving a gain factor describing the energy distribution between the flattened spectra, and when the so derived gain factor is used by an envelope shaper to timely shape the envelope of the decorrelated signal .
摘要翻译：当使用光谱平滑变压器在去除相关信号的频谱和原始信号之前，在使用平坦的频谱以导出增益因子之前，可以对来自原始信号的解相关信号的时间包络进行成形，而不引入额外的失真描述了平坦化光谱之间的能量分布，以及何时得到的增益因子被信封整形器用于及时地形成去相关信号的包络。

5. 发明申请

WO2005036925A2 COMPATIBLE MULTI-CHANNEL CODING/DECODING 审中-公开
标题翻译：兼容多通道编码/解码
公开(公告)号：WO2005036925A2
公开(公告)日：2005-04-21
申请号：PCT/EP2004/010948
申请日：2004-09-30
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , HERRE, Juergen , HILPERT, Johannes , GEYERSBERGER, Stefan , HOELZER, Andreas , SPENGER, Claus
发明人： HERRE, Juergen , HILPERT, Johannes , GEYERSBERGER, Stefan , HOELZER, Andreas , SPENGER, Claus
IPC分类号： H04S
CPC分类号： H04S3/02 , G10L19/008 , G10L19/032 , H04S3/008 , H04S2400/03 , H04S2420/03
摘要： In processing a multi-channel audio signal having at least three original channels, a first downmix channel and a second downmix channel are provided (12), which are derived from the original channels. For a selected original channel of the original channels, channel side information are calculated (14) such that a downmix channel or a combined downmix channel including the first and the second downmix channels, when weighted using the channel side information, results in an approximation of the selected original channel. The channel side information and the first and second downmix channels form output data (20) to be transmitted to a decoder, which, in case of a low level decoder only decodes the first and second downmix channels or, in case of a high level decoder provides a full multi-channel audio signal based on the downmix channels and the channel side information. Since the channel side information only occupy a low number of bits, and since the decoder does not use dematrixing, an efficient and high quality multi-channel extension for stereo players and enhanced multi-channel players is obtained.
摘要翻译：在处理具有至少三个原始信道的多声道音频信号时，提供从原始信道导出的第一下混通道和第二下混通道（12）。对于原始信道的所选择的原始信道，计算信道侧信息（14），使得当使用信道侧信息加权时，包括第一和第二下混通道的下混通道或组合下混通道导致近似所选的原始频道。信道侧信息以及第一和第二下混通道形成要发送到解码器的输出数据（20），在解码器中，在低电平解码器的情况下，仅解码第一和第二下混通道，或者在高电平解码器的情况下基于下混频道和频道侧信息提供完整的多声道音频信号。由于信道侧信息仅占用少量的比特，并且由于解码器不使用解矩阵，因此获得了用于立体声播放器和增强型多声道播放器的有效且高质量的多声道扩展。

6. 发明申请

WO2008131903A1 APPARATUS AND METHOD FOR SYNTHESIZING AN OUTPUT SIGNAL 审中-公开
标题翻译：用于合成输出信号的装置和方法
公开(公告)号：WO2008131903A1
公开(公告)日：2008-11-06
申请号：PCT/EP2008/003282
申请日：2008-04-23
申请人： DOLBY SWEDEN AB , FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , ENGDEGARD, Jonas , VILLEMORS, Lars , PURNHAGEN, Heiko , RESCH, Barbara , FALCH, Cornelia , HERRE, Juergen , HILPERT, Johannes , HOELZER, Andreas , TERENTIEV, Leonid
发明人： ENGDEGARD, Jonas , VILLEMORS, Lars , PURNHAGEN, Heiko , RESCH, Barbara , FALCH, Cornelia , HERRE, Juergen , HILPERT, Johannes , HOELZER, Andreas , TERENTIEV, Leonid
IPC分类号： G10L19/00 , H04S3/02
CPC分类号： H04S1/007 , G10L19/008 , H04S2400/01
摘要： An apparatus for synthesizing a rendered output signal having a first audio channel and a second audio channel includes a decorrelator stage (356) for generating a decorrelator signal based on a downmix signal, and a combiner (364) for performing a weighted combination of the downmix signal and a decorrelated signal based on parametric audio object information (362), downmix information (354) and target rendering information (360). The combiner solves the problem of optimally combining matrixing with decorrelation for a high quality stereo scene reproduction of a number of individual audio objects using a multichannel downmix.
摘要翻译：一种用于合成具有第一音频频道和第二音频频道的渲染输出信号的装置，包括用于基于降混信号产生去相关器信号的去相关器级（356）和用于执行下混合的加权组合的组合器（364）信号和基于参数音频对象信息（362），下混信息（354）和目标渲染信息（360）的去相关信号。组合器解决了使用多通道下混合将矩阵化与去相关最佳组合以用于多个单独音频对象的高质量立体场景再现的问题。

7. 发明申请

WO2011061174A1 APPARATUS FOR PROVIDING AN UPMIX SIGNAL REPRESENTATION ON THE BASIS OF THE DOWNMIX SIGNAL REPRESENTATION, APPARATUS FOR PROVIDING A BITSTREAM REPRESENTING A MULTI-CHANNEL AUDIO SIGNAL, METHODS, COMPUTER PROGRAMS AND BITSTREAM REPRESENTING A MULTI-CHANNEL AUDIO SIGNAL USING A LINEAR COMBINATION PARAMETER 审中-公开
标题翻译：用于提供基于下行信号表示的UPMIX信号表示的装置，用于提供表示多信道音频信号的一种BITSTREAM的装置，方法，计算机程序和表示多个信道的BITSTREAM
公开(公告)号：WO2011061174A1
公开(公告)日：2011-05-26
申请号：PCT/EP2010/067550
申请日：2010-11-16
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , DOLBY INTERNATIONAL AB , ENGDEGARD, Jonas , PURNHAGEN, Heiko , HERRE, Juergen , FALCH, Cornelia , HELLMUTH, Oliver , TERENTIEV, Leonid
发明人： ENGDEGARD, Jonas , PURNHAGEN, Heiko , HERRE, Juergen , FALCH, Cornelia , HELLMUTH, Oliver , TERENTIEV, Leonid
IPC分类号： G10L19/00
CPC分类号： G10L19/008
摘要： An apparatus for providing an upmix signal representation on the basis of a downmix signal representation and an object-related parametric information, which are included in a bitstream representation of an audio content, in independence on a user-specified rendering matrix, the apparatus comprises a distortion limiter configured to obtain a modified rendering matrix using a linear combination of a user-specified rendering matrix in a target rendering matrix in dependence on a linear combination parameter. The apparatus also comprises a signal processor configured to obtain the upmix signal representation on the basis of the downmix signal representation and the object-related parametric information using the modified rendering matrix. The apparatus is also configured to evaluate a bitstream element representing the linear combination parameter in order to obtain the linear combination parameter.
摘要翻译：一种用于在用户指定的渲染矩阵上独立地基于包含在音频内容的位流表示中的下混信号表示和对象相关参数信息来提供上混合信号表示的装置，该装置包括：失真限制器被配置为根据线性组合参数在目标渲染矩阵中使用用户指定的渲染矩阵的线性组合来获得修改的渲染矩阵。该装置还包括信号处理器，该信号处理器被配置为基于下混信号表示和使用修改的渲染矩阵的对象相关参数信息获得上混信号表示。该装置还被配置为评估表示线性组合参数的比特流元件，以便获得线性组合参数。

8. 发明申请

WO2011048067A1 APPARATUS FOR PROVIDING AN UPMIX SIGNAL REPRESENTATION ON THE BASIS OF A DOWNMIX SIGNAL REPRESENTATION, APPARATUS FOR PROVIDING A BITSTREAM REPRESENTING A MULTICHANNEL AUDIO SIGNAL, METHODS, COMPUTER PROGRAM AND BITSTREAM USING A DISTORTION CONTROL SIGNALING 审中-公开
标题翻译：用于提供基于下行信号表示的UPMIX信号表示的装置，用于提供使用失真控制的多通道音频信号，方法，计算机程序和比特的表达的装置
公开(公告)号：WO2011048067A1
公开(公告)日：2011-04-28
申请号：PCT/EP2010/065671
申请日：2010-10-19
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E. V. , DOLBY INTERNATIONAL AB , ENGDEGARD, Jonas , PURNHAGEN, Heiko , HERRE, Juergen , TERENTIEV, Leonid , FALCH, Cornelia , HELLMUTH, Oliver
发明人： ENGDEGARD, Jonas , PURNHAGEN, Heiko , HERRE, Juergen , TERENTIEV, Leonid , FALCH, Cornelia , HELLMUTH, Oliver
IPC分类号： G10L19/00
CPC分类号： H04S3/008 , G10L19/008 , H04S2420/03
摘要： An apparatus for providing an upmix signal representation on the basis of a downmix signal representation and an object-related parametric information, which are included in a bitstream representation of an audio content, and in dependence on a rendering information, comprises a distortion limiter configured to adjust upmix parameters using a distortion control scheme to avoid or limit audible distortions which are caused by an inappropriate choice of rendering parameters. The distortion limiter is configured to obtain a distortion limitation control parameter, which is included in the bitstream representation of the audio content, and to adjust a distortion control scheme in dependence on the distortion limitation control parameter.
摘要翻译：一种用于根据下混合信号表示和包含在音频内容的比特流表示中并且根据呈现信息包括的对象相关参数信息来提供上混合信号表示的装置，包括：失真限制器，被配置为使用失真控制方案调整上混参数，以避免或限制由不适当选择渲染参数引起的可听失真。失真限制器被配置为获得包括在音频内容的比特流表示中的失真限制控制参数，并且根据失真限制控制参数来调整失真控制方案。

9. 发明申请

WO2008003362A1 APPARATUS AND METHOD FOR COMBINING MULTIPLE PARAMETRICALLY CODED AUDIO SOURCES 审中-公开
标题翻译：用于组合多个参考编码音频源的装置和方法
公开(公告)号：WO2008003362A1
公开(公告)日：2008-01-10
申请号：PCT/EP2007/003598
申请日：2007-04-24
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , HILPERT, Johannes , HERRE, Juergen , LINZMEIER, Karsten , HELLMUTH, Oliver , KASTNER, Thorsten
发明人： HILPERT, Johannes , HERRE, Juergen , LINZMEIER, Karsten , HELLMUTH, Oliver , KASTNER, Thorsten
IPC分类号： G10L19/00 , H04N7/15
CPC分类号： H04N7/15 , G10L19/008
摘要： According to the present invention, multiple parametrically encoded audio signals can be efficiently combined using an audio signal generator (100), which generates an audio output signal (120) by combining the down-mix channels (110a, 112a) and the associated parameters (110b, 112b) of the audio signals directly within the parameter domain, i.e. without reconstructing or decoding the individual input audio signals prior to the generation of the audio output signal (120). This is achieved by direct mixing of the associated down-mix channels (110a, 112a) of the individual input signals. It is one key feature of the present invention that the combination of the down-mix channels (110a, 112a) is achieved by simple, computationally inexpensive arithmetic operations.
摘要翻译：根据本发明，可以使用音频信号发生器（100）有效地组合多个参数编码的音频信号，音频信号发生器（100）通过组合下混频道（110a，112a）和相关联的参数（ 110b，112b）直接在参数域内，即在生成音频输出信号（120）之前不重建或解码各个输入音频信号。这通过直接混合各个输入信号的相关联的下混通道（110a，112a）来实现。本发明的一个关键特征是通过简单的，计算上便宜的算术运算来实现降混混频道（110a，112a）的组合。

10. 发明申请

WO2010003617A1 LOW BITRATE AUDIO ENCODING/DECODING SCHEME WITH COMMON PREPROCESSING 审中-公开
标题翻译：低分辨率音频编码/解码方案与通用预处理
公开(公告)号：WO2010003617A1
公开(公告)日：2010-01-14
申请号：PCT/EP2009/004873
申请日：2009-07-06
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , GRILL, Bernhard , BAYER, Stefan , FUCHS, Guillaume , GEYERSBERGER, Stefan , GEIGER, Ralf , HILPERT, Johannes , KRAEMER, Ulrich , LECOMTE, Jeremie , MULTRUS, Markus , NEUENDORF, Max , POPP, Harald , RETTELBACH, Nikolaus , NAGEL, Frederik , DISCH, Sascha , HERRE, Juergen , YOKOTANI, Yoshikazu , WABNIK, Stefan , SCHULLER, Gerald , HIRSCHFELD, Jens
发明人： GRILL, Bernhard , BAYER, Stefan , FUCHS, Guillaume , GEYERSBERGER, Stefan , GEIGER, Ralf , HILPERT, Johannes , KRAEMER, Ulrich , LECOMTE, Jeremie , MULTRUS, Markus , NEUENDORF, Max , POPP, Harald , RETTELBACH, Nikolaus , NAGEL, Frederik , DISCH, Sascha , HERRE, Juergen , YOKOTANI, Yoshikazu , WABNIK, Stefan , SCHULLER, Gerald , HIRSCHFELD, Jens
IPC分类号： G10L19/14
CPC分类号： G10L19/173 , G10L19/0017 , G10L19/008 , G10L19/0212 , G10L19/18 , G10L2019/0008
摘要： An audio encoder comprises a common preprocessing stage (100), an information sink based encoding branch (400) such as spectral domain encoding branch, a information source based encoding branch (500) such as an LPC-domain encoding branch and a switch (200) for switching between these branches at inputs into these branches or outputs of these branches controlled by a decision stage (300). An audio decoder comprises a spectral domain decoding branch, an LPC- domain decoding branch, one or more switches for switching between the branches and a common post-processing stage for post-processing a time-domain audio signal for obtaining a post-processed audio signal.
摘要翻译：音频编码器包括公共预处理级（100），诸如频域编码分支的基于信息集合的编码分支（400），诸如LPC域编码分支的信息源编码分支（500）和开关（200 ），用于在由决策阶段（300）控制的这些分支的这些分支或输出的输入处在这些分支之间切换。音频解码器包括频域解码分支，LPC域解码分支，用于在分支之间切换的一个或多个开关和用于后处理时域音频信号以用于获得后处理音频的公共后处理级信号。

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