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1. 发明申请

WO2006048226A1 STEREO COMPATIBLE MULTI-CHANNEL AUDIO CODING 审中-公开
标题翻译：立体声兼容多通道音频编码
公开(公告)号：WO2006048226A1
公开(公告)日：2006-05-11
申请号：PCT/EP2005/011663
申请日：2005-10-31
申请人： CODING TECHNOLOGIES AB , KONINKLIJKE PHILIPS ELECTRONICS N.V. , PURNHAGEN, Heiko , BREEBAART, Jeroen , SCHUIJERS, Erik , VILLEMOES, Lars , RÖDEN, Jonas , ENGDEGARD, Jonas
发明人： PURNHAGEN, Heiko , BREEBAART, Jeroen , SCHUIJERS, Erik , VILLEMOES, Lars , RÖDEN, Jonas , ENGDEGARD, Jonas
IPC分类号： G10L19/00
CPC分类号： G10L19/008
摘要： A parametric representation (12) of a multi-channel audio signal having parameters suited to be used together with a monophonic downmix signal to calculate a reconstruction of the multi-channel audio signal can efficiently be derived in a stereo-backwards compatible way when a parameter combiner (18) is used to generate the parametric representation (12) by combining one or more spatial parameters (20) and a stereo parameter (22) resulting in a parametric representation (12) having a decoder usable stereo parameter (24) and an information on the one or more spatial parameters (26) that represents, together with the decoder usable stereo parameter (24) , the one or more spatial parameters (20).
摘要翻译：具有适合与单声道下混合信号一起使用以计算多声道音频信号的重构的参数的多声道音频信号的参数表示（12）可以以立体声向后兼容的方式有效地导出，当参数组合器（18）用于通过组合一个或多个空间参数（20）和立体声参数（22）来产生参数表示（12），导致具有解码器可用立体声参数（24）的参数表示（12）和与所述解码器可用立体参数（24）一起表示所述一个或多个空间参数（20）的一个或多个空间参数（26）的信息。

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

WO2006048203A1 METHODS FOR IMPROVED PERFORMANCE OF PREDICTION BASED MULTI-CHANNEL RECONSTRUCTION 审中-公开
标题翻译：改进基于预测的多通道重建性能的方法
公开(公告)号：WO2006048203A1
公开(公告)日：2006-05-11
申请号：PCT/EP2005/011586
申请日：2005-10-28
申请人： CODING TECHNOLOGIES AB , KONINKLIJKE PHILIPS ELECTRONICS N.V. , VILLEMOES, Lars , KJÖRLING, Kristofer , PURNHAGEN, Heiko , RÖDEN, Jonas , BREEBAART, Jeroen , HOTHO, Gerard
发明人： VILLEMOES, Lars , KJÖRLING, Kristofer , PURNHAGEN, Heiko , RÖDEN, Jonas , BREEBAART, Jeroen , HOTHO, Gerard
IPC分类号： G10L19/00
CPC分类号： G10L19/008 , G10L19/04 , H04S2420/03
摘要： For a multi-channel reconstruction of audio signals based on at least one base channel, an energy measure is used for compensating energy losses due to an predictive upmix. The energy measure can be applied in the encoder or the decoder. Furthermore, a decorrelated signal is added to output channels generated by an energy-loss introducing upmix procedure. The energy of the decorrelated signal is smaller than or equal to an energy error introduced by the predictive upmix. Thus, problems occurring for prediction based up-mix methods such as up-mixing signals that are coded with High Frequency Reconstruction techniques are solved, so that the correct correlation between the up-mixed channels is obtained or the up-mix is adapted to arbitrary down-mixes.
摘要翻译：对于基于至少一个基本信道的音频信号的多声道重建，能量测量被用于由于预测上混补偿能量损失。能量测量可以应用于编码器或解码器。此外，将去相关信号添加到通过能量损失引入上混程序产生的输出通道。解相关信号的能量小于或等于由预测上混引入的能量误差。因此，解决了用于基于预测的上混合方法（例如用高频重建技术编码的上混合信号）所出现的问题，从而获得上混合信道之间的正确相关性，或者将混合信号适配为任意的下混合。

4. 发明申请

WO2006048204A1 MULTI PARAMETRISATION BASED MULTI-CHANNEL RECONSTRUCTION 审中-公开
标题翻译：多参数多通道重构
公开(公告)号：WO2006048204A1
公开(公告)日：2006-05-11
申请号：PCT/EP2005/011587
申请日：2005-10-28
申请人： CODING TECHNOLOGIES AB , KONINKLIJKE PHILIPS ELECTRONICS N.V. , VILLEMOES, Lars , KJÖRLING, Kristofer , PURNHAGEN, Heiko , RÖDEN, Jonas , BREEBAART, Jeroen , HOTHO, Gerard
发明人： VILLEMOES, Lars , KJÖRLING, Kristofer , PURNHAGEN, Heiko , RÖDEN, Jonas , BREEBAART, Jeroen , HOTHO, Gerard
IPC分类号： G10L19/00
CPC分类号： G10L19/008 , G10L19/04 , H04S2420/03
摘要： A Multi-channel synthesiser for generating at least three output channels (110, 111, 112) using an input signal having at least one base channel, the base channel being derived from the original multi-channel signal (101, 102, 103), the input signal further including at least two different up-mixing parameters, and an up-mixer mode indication (1005) indicating, in a first state that a first up-mixing rule is to be performed, and, indicating, in a second state, that a different second up-mixing rule is to be performed, uses an up-mixer for up-mixing the at least one base channel using the at least two different up-mixing parameters based on the first or the second up-mixing rule in response to the up-mixer mode indication (1005) so that the at least three output channels (110, 111, 112) are obtained.
摘要翻译：一种多通道合成器，用于使用具有至少一个基本通道的输入信号来产生至少三个输出通道（110,111,112），所述基本通道从原始多通道信号（101,102,103）导出，所述输入信号还包括至少两个不同的上混参数，以及上混合模式指示（1005），在第一状态下指示要执行第一加混规则，并且以第二状态要执行不同的第二上调规则，使用上混合器，用于使用基于第一或第二上混合规则的至少两个不同的上混参数来上混合至少一个基本信道响应于上混频器模式指示（1005），使得获得至少三个输出通道（110,111,112）。

5. 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。

6. 发明申请

WO2008046530A3 APPARATUS AND METHOD FOR MULTI -CHANNEL PARAMETER TRANSFORMATION 审中-公开
公开(公告)号：WO2008046530A3
公开(公告)日：2008-04-24
申请号：PCT/EP2007/008682
申请日：2007-10-05
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , CODING TECHNOLOGIES AB , KONINKLIJKE PHILIPS ELECTRONICS N.V. , HILPERT, Johannes , LINZMEIER, Karsten , HERRE, Jürgen , SPERSCHNEIDER, Ralph , HÖLZER, Andreas , VILLEMOES, Lars , ENGDEGARD, Jonas , PURNHAGEN, Heiko , KJÖRLING, Kristofer , BREEBAART, Jeroen , OOMEN, Werner
发明人： HILPERT, Johannes , LINZMEIER, Karsten , HERRE, Jürgen , SPERSCHNEIDER, Ralph , HÖLZER, Andreas , VILLEMOES, Lars , ENGDEGARD, Jonas , PURNHAGEN, Heiko , KJÖRLING, Kristofer , BREEBAART, Jeroen , OOMEN, Werner
IPC分类号： G10L19/14 , G10L19/00
摘要： A parameter transformer generates level parameters, indicating an energy relation between a first and a second audio channel of a multi-channel audio signal associated to a multi-channel loudspeake configuration. The level parameter are generated based on object parameters for a plurality of audio objects associated to a down-mix channel, which is generated using object audio signals associated to the audio objects. The object parameters comprise an energy parameter indicating an energy of the object audio signal. To derive the coherence and the level parameters, a parameter generator is used, which combines the energy parameter and object rendering parameters, which depend on a desired rendering configuration.

7. 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。

8. 发明申请

WO2006048227A1 MULTICHANNEL AUDIO SIGNAL DECODING USING DE-CORRELATED SIGNALS 审中-公开
标题翻译：多声道音频信号使用去相关信号进行解码
公开(公告)号：WO2006048227A1
公开(公告)日：2006-05-11
申请号：PCT/EP2005/011664
申请日：2005-10-31
申请人： CODING TECHNOLOGIES AB , KONINKLIJKE PHILIPS ELECTRONICS N.V. , PURNHAGEN, Heiko , ENGDEGARD, Jonas , BREEBAART, Jeroen , SCHUIJERS, Erik
发明人： PURNHAGEN, Heiko , ENGDEGARD, Jonas , BREEBAART, Jeroen , SCHUIJERS, Erik
IPC分类号： H04S5/02 , G10L19/00
CPC分类号： H04S5/02 , G10L19/008
摘要： A multi-channel audio signal having at least three channels can be reconstructed such, that the reconstructed channels are at least partly de-correlated from each other using a downmixed signal derived from an original multi-channel signal and a set of decorrelated signals provided by a de-correlator (101) that derives the set of de-correlated signals from the downmix signal, wherein the de-correlated signals within the set of de-correlated signals are mutually mostly orthogonal to each other, i.e. an orthogonality relation between channel pairs is satisfied within an orthogonality tolerance range.
摘要翻译：可以重构具有至少三个信道的多声道音频信号，使得使用从原始多声道信号导出的下混合信号和由一组解相关信号提供的重构信道至少部分地彼此去相关，去相关器（101），其从所述下混信号中导出所述一组去相关信号，其中所述去相关信号集合内的去相关信号彼此大体上正交，即信道对之间的正交关系在正交公差范围内满足。

9. 发明申请

WO2006103584A1 MULTI-CHANNEL AUDIO CODING 审中-公开
标题翻译：多声道音频编码
公开(公告)号：WO2006103584A1
公开(公告)日：2006-10-05
申请号：PCT/IB2006/050822
申请日：2006-03-16
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , CODING TECHNOLOGIES AB , HOTHO, Gerard, H. , BREEBAART, Dirk, J. , SCHUIJERS, Erik, G., P. , DEN BRINKER, Albertus, C. , VILLEMOES, Lars, F. , PURNHAGEN, Heiko , RÖDÉN, Karl, J.
发明人： HOTHO, Gerard, H. , BREEBAART, Dirk, J. , SCHUIJERS, Erik, G., P. , DEN BRINKER, Albertus, C. , VILLEMOES, Lars, F. , PURNHAGEN, Heiko , RÖDÉN, Karl, J.
IPC分类号： G10L19/00 , H04S3/00
CPC分类号： G10L19/008 , H04R2420/07 , H04S3/008
摘要： A multi-channel audio encoder (10) for encoding a multi-channel audio signal (101), e.g. a 5.1 channel audio signal, into a spatial down-mix (102), e.g. a stereo signal, and associated parameters (104, 105). The encoder (10) comprises first and second units (110, 120). The first unit (110) encodes the multi-channel audio signal (101) into the spatial down-mix (102) and parameters (104). These parameters (104) enable a multi-channel decoder (20) to reconstruct the multi¬ channel audio signal (203) from the spatial down-mix (102). The second unit (120) generates, from the spatial down-mix (102), parameters (105) that enable the decoder to reconstruct the spatial down-mix (202) from an alternative down- mix (103), e.g. a so-called artistic down-mix that has been manually mixed in a sound studio. In this way, the decoder (20) can efficiently deal with a situation in which an alternative down-mix (103) is received instead of the regular spatial, down-mix (102). In the decoder (20), first the spatial down-mix (202) is reconstructed from the alternative down-mix (103) and the parameters (105). Next, the spatial down-mix (202) is decoded into the multi-channel audio signal (203).
摘要翻译：一种用于对多声道音频信号（101）进行编码的多声道音频编码器（10）。 5.1声道音频信号转换成空间缩混（102）。立体声信号和相关参数（104,105）。编码器（10）包括第一和第二单元（110,120）。第一单元（110）将多声道音频信号（101）编码成空间缩混（102）和参数（104）。这些参数（104）使得多声道解码器（20）能够从空间缩混（102）重建多声道音频信号（203）。第二单元（120）从空间向下混合（102）产生能够使解码器从替代的下混合（103）重构空间缩混（202）的参数（105）。所谓的艺术混合，已经在一个健全的工作室手工混合。以这种方式，解码器（20）可以有效地处理其中接收替代的下混合（103）而不是常规的空间，下混合（102）的情况。在解码器（20）中，首先，从替代的下混合（103）和参数（105）重构空间缩混（202）。接下来，空间缩混（202）被解码为多声道音频信号（203）。

10. 发明申请

WO2005101371A1 METHOD FOR REPRESENTING MULTI-CHANNEL AUDIO SIGNALS 审中-公开
标题翻译：用于表示多通道音频信号的方法
公开(公告)号：WO2005101371A1
公开(公告)日：2005-10-27
申请号：PCT/EP2005/003849
申请日：2005-04-12
申请人： CODING TECHNOLOGIES AB , PURNHAGEN, Heiko , VILLEMOES, Lars , ENGDEGARD, Jonas , RÖDÉN, Jonas , KJÖRLING, Kristofer
发明人： PURNHAGEN, Heiko , VILLEMOES, Lars , ENGDEGARD, Jonas , RÖDÉN, Jonas , KJÖRLING, Kristofer
IPC分类号： G10L19/00
CPC分类号： H04R5/00 , G10L19/008 , G10L19/0204 , G10L19/032 , G10L19/167 , G10L19/26 , H04S3/02 , H04S5/00 , H04S2400/01 , H04S2400/03
摘要： A multi-channel input signal having at least three original channels is represented by a parameter representation of the multi-channel signal. A first balance parameter (r1), a first coherence parameter, or a first inter-channel time difference between a first channel pair and a second bal-ance parameter (r2), or a second coherence parameter, or a second inter-channel time difference parameter between a second channel pair are calculated. This set of parameters is the parameter representation of the original signals. The first channel pair (102, 104) has two channels, which are different from two channels of a second channel pair (102, 104, 103). Furthermore, each channel of the two chan-nel pairs is one of the original channels, or a weighted combination of the original channels, and the first channel pair and the second channel pair include information on the three original channels. For multi-channel reconstruction purposes, the parameters are used in addition to down-mixing information to generate a selectable number of out-put channels in a scalable fashion.
摘要翻译：具有至少三个原始信道的多信道输入信号由多信道信号的参数表示来表示。第一平衡参数（r1），第一相干参数或第一通道对和第二平衡参数（r2）之间的第一通道间时间差或第二相干参数或第二通道间时间计算第二通道对之间的差参数。这组参数是原始信号的参数表示。第一信道对（102,104）具有与第二信道对（102,104,103）的两个信道不同的两个信道。此外，两个通道对的每个通道是原始通道之一或原始通道的加权组合，并且第一通道对和第二通道对包括关于三个原始通道的信息。对于多通道重建的目的，除了降混信息之外还使用参数以便以可缩放的方式生成可选数量的输出通道。

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