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    Multi-channel hierarchical audio coding with compact side information
    3.
    发明申请
    Multi-channel hierarchical audio coding with compact side information 有权
    具有紧凑侧面信息的多通道分层音频编码

    公开(公告)号：US20060233380A1

    公开(公告)日：2006-10-19

    申请号：US11314711

    申请日：2005-12-21

    申请人： Andreas Holzer ,  Jurgen Herre ,  Heiko Purnhagen ,  Kristofer Kjorling ,  Jonas Roden ,  Lars Villemoes ,  Jonas Engdegard ,  Jeroen Breebaart ,  Erik Schuijers ,  Werner Oomen

    发明人： Andreas Holzer ,  Jurgen Herre ,  Heiko Purnhagen ,  Kristofer Kjorling ,  Jonas Roden ,  Lars Villemoes ,  Jonas Engdegard ,  Jeroen Breebaart ,  Erik Schuijers ,  Werner Oomen

    IPC分类号： H04R5/00

    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 。

    Energy dependent quantization for efficient coding of spatial audio parameters
    5.
    发明申请
    Energy dependent quantization for efficient coding of spatial audio parameters 有权
    能量相关量化用于空间音频参数的有效编码

    公开(公告)号：US20070016416A1

    公开(公告)日：2007-01-18

    申请号：US11406631

    申请日：2006-04-19

    申请人： Jonas Roden ,  Jonas Engdegard ,  Heiko Purnhagen ,  Jeroen Breebaart ,  Erik Schuijers ,  Steven van de Par ,  Johannes Hilpert ,  Jurgen Herre

    发明人： Jonas Roden ,  Jonas Engdegard ,  Heiko Purnhagen ,  Jeroen Breebaart ,  Erik Schuijers ,  Steven van de Par ,  Johannes Hilpert ,  Jurgen Herre

    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建时显着干扰多信道信号的感知质量 。

    Multi-channel hierarchical audio coding with compact side information
    6.
    发明授权
    Multi-channel hierarchical audio coding with compact side information 有权
    具有紧凑侧面信息的多通道分层音频编码

    公开(公告)号：US07961890B2

    公开(公告)日：2011-06-14

    申请号：US11314711

    申请日：2005-12-21

    申请人： Andreas Hölzer ,  Jürgen Herre ,  Heiko Purnhagen ,  Kristofer Kjörling ,  Jonas Röden ,  Lars Villemoes ,  Jonas Engdegard ,  Jeroen Breebaart ,  Erik Schuijers ,  Werner Oomen

    发明人： Andreas Hölzer ,  Jürgen Herre ,  Heiko Purnhagen ,  Kristofer Kjörling ,  Jonas Röden ,  Lars Villemoes ,  Jonas Engdegard ,  Jeroen Breebaart ,  Erik Schuijers ,  Werner Oomen

    IPC分类号： H04R5/00

    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 。

    Audio coding using de-correlated signals
    7.
    发明申请
    Audio coding using de-correlated signals 有权
    使用去相关信号的音频编码

    公开(公告)号：US20060165184A1

    公开(公告)日：2006-07-27

    申请号：US11291009

    申请日：2005-11-29

    申请人： Heiko Purnhagen ,  Jonas Engdegard ,  Jeroen Breebaart ,  Erik Schuijers

    发明人： Heiko Purnhagen ,  Jonas Engdegard ,  Jeroen Breebaart ,  Erik Schuijers

    IPC分类号： H04B14/04

    CPC分类号： H04S5/02 ,  G10L19/008

    摘要： A multi-channel 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 de-correlated signals provided by a de-correlator (101) that derives the set of de-correlated signals from the down-mix 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： 可以重建具有至少三个信道的多信道信号，使得使用从原始多信道信号导出的下混合信号和提供的一组去相关信号，使得重构信道彼此至少部分地相互关联 通过去相关器（101），其从所述下混合信号中导出所述一组去相关信号，其中所述解相关信号组内的去相关信号彼此大致正交，即正交关系 在正交公差范围内满足通道对之间。

    Stereo compatible multi-channel audio coding
    8.
    发明授权
    Stereo compatible multi-channel audio coding 有权
    立体声兼容多声道音频编码

    公开(公告)号：US08654985B2

    公开(公告)日：2014-02-18

    申请号：US13040057

    申请日：2011-03-03

    申请人： Lars Villemoes ,  Heiko Purnhagen ,  Jonas Roeden ,  Jonas Engdegard ,  Jeroen Breebaart ,  Erik Schuijers

    发明人： Lars Villemoes ,  Heiko Purnhagen ,  Jonas Roeden ,  Jonas Engdegard ,  Jeroen Breebaart ,  Erik Schuijers

    IPC分类号： H04R5/00 ,  G10L19/00

    CPC分类号： G10L19/008

    摘要： A parametric representation 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 is used to generate the parametric representation by combining a one or more spatial parameters and a stereo parameter resulting in a parametric representation having a decoder usable stereo parameter and an information on the one or more spatial parameters that represents, together with the decoder usable stereo parameter, the one or more spatial parameters.

    摘要翻译： 当使用参数组合器时，具有适合于与单声道下混信号一起使用以计算多声道音频信号的重建的参数的多声道音频信号的参数表示可以以立体声向后兼容的方式有效地导出 通过组合一个或多个空间参数和立体声参数来产生参数表示，该立体参数导致具有解码器可用立体声参数的参数表示以及与解码器可用立体参数一起表示的一个或多个空间参数的信息， 一个或多个空间参数。

    Stereo compatible multi-channel audio coding
    9.
    发明授权
    Stereo compatible multi-channel audio coding 有权
    立体声兼容多声道音频编码

    公开(公告)号：US07916873B2

    公开(公告)日：2011-03-29

    申请号：US11286239

    申请日：2005-11-23

    申请人： Lars Villemoes ,  Heiko Purnhagen ,  Jonas Roeden ,  Jonas Engdegard ,  Jeroen Breebaart ,  Erik Schuijers

    发明人： Lars Villemoes ,  Heiko Purnhagen ,  Jonas Roeden ,  Jonas Engdegard ,  Jeroen Breebaart ,  Erik Schuijers

    IPC分类号： H04R5/00 ,  G10L19/00

    CPC分类号： G10L19/008

    摘要： A parametric representation 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 is used to generate the parametric representation by combining a one or more spatial parameters and a stereo parameter resulting in a parametric representation having a decoder usable stereo parameter and an information on the one or more spatial parameters that represents, together with the decoder usable stereo parameter, the one or more spatial parameters.

    摘要翻译： 当使用参数组合器时，具有适合于与单声道下混信号一起使用以计算多声道音频信号的重建的参数的多声道音频信号的参数表示可以以立体声向后兼容的方式有效地导出 通过组合一个或多个空间参数和立体声参数来产生参数表示，该立体参数导致具有解码器可用立体声参数的参数表示以及与解码器可用立体参数一起表示的一个或多个空间参数的信息， 一个或多个空间参数。

    Energy dependent quantization for efficient coding of spatial audio parameters
    10.
    发明授权
    Energy dependent quantization for efficient coding of spatial audio parameters 有权
    能量相关量化用于空间音频参数的有效编码

    公开(公告)号：US08054981B2

    公开(公告)日：2011-11-08

    申请号：US11406631

    申请日：2006-04-19

    申请人： Jonas Röden ,  Jonas Engdegard ,  Heiko Purnhagen ,  Jeroen Breebaart ,  Erik Schuijers ,  Steven van de Par ,  Johannes Hilpert ,  Jürgen Herre

    发明人： Jonas Röden ,  Jonas Engdegard ,  Heiko Purnhagen ,  Jeroen Breebaart ,  Erik Schuijers ,  Steven van de Par ,  Johannes Hilpert ,  Jürgen Herre

    IPC分类号： H04R5/00

    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建时显着干扰多信道信号的感知质量 。