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1. 发明授权

US07668722B2 Multi parametrisation based multi-channel reconstruction 有权
标题翻译：多参数化多通道重建
公开(公告)号：US07668722B2
公开(公告)日：2010-02-23
申请号：US11290372
申请日：2005-11-29
申请人： Lars Villemoes , Kristofer Kjoerling , Heiko Purnhagen , Jonas Roeden , Jeroen Breebaart , Gerard Hotho
发明人： Lars Villemoes , Kristofer Kjoerling , Heiko Purnhagen , Jonas Roeden , Jeroen Breebaart , Gerard Hotho
IPC分类号： G10L19/00
CPC分类号： G10L19/008 , G10L19/04 , H04S2420/03
摘要： A multi-channel synthesizer for generating at least three output channels using an input signal having at least one base channel, the base channel being derived from the original multi-channel signal, the input signal further including at least two different up-mixing parameters, and an up-mixer mode indication 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 so that the at least three output channels 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产生至少三个输出通道，所述基本通道从原始多通道信号导出，所述输入信号还包括至少两个不同的上混参数，以及向上混合模式指示，其指示在要执行第一上调规则的第一状态中，并且在第二状态中指示要执行不同的第二上调规则，使用向上混合器，用于响应于所述上混合器模式指示，基于所述第一或第二上混合规则，使用所述至少两个不同的上混合参数来上混合所述至少一个基本信道，使得所述至少三个输出信道获得。

2. 发明授权

US08515083B2 Methods for improved performance of prediction based multi-channel reconstruction 有权
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：US08515083B2
公开(公告)日：2013-08-20
申请号：US11290370
申请日：2005-11-29
申请人： Lars Villemoes , Kristofer Kjoerling , Heiko Purnhagen , Jonas Roeden , Jeroen Breebaart , Gerard Hotho
发明人： Lars Villemoes , Kristofer Kjoerling , Heiko Purnhagen , Jonas Roeden , Jeroen Breebaart , Gerard Hotho
IPC分类号： H04R5/00 , G06F17/00 , 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

3. 发明申请

US20060165237A1 Methods for improved performance of prediction based multi-channel reconstruction 有权
公开(公告)号：US20060165237A1
公开(公告)日：2006-07-27
申请号：US11290370
申请日：2005-11-29
申请人： Lars Villemoes , Kristofer Kjoerling , Heiko Purnhagen , Jonas Roeden , Jeroen Breebaart , Gerard Hotho
发明人： Lars Villemoes , Kristofer Kjoerling , Heiko Purnhagen , Jonas Roeden , Jeroen Breebaart , Gerard Hotho
IPC分类号： H04R5/00 , H04B1/00
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.

4. 发明申请

US20060140412A1 Multi parametrisation based multi-channel reconstruction 有权
标题翻译：多参数化多通道重建
公开(公告)号：US20060140412A1
公开(公告)日：2006-06-29
申请号：US11290372
申请日：2005-11-29
申请人： Lars Villemoes , Kristofer Kjoerling , Heiko Purnhagen , Jonas Roeden , Jeroen Breebaart , Gerard Hotho
发明人： Lars Villemoes , Kristofer Kjoerling , Heiko Purnhagen , Jonas Roeden , Jeroen Breebaart , Gerard Hotho
IPC分类号： H04H5/00
CPC分类号： G10L19/008 , G10L19/04 , H04S2420/03
摘要： A multi-channel synthesizer for generating at least three output channels using an input signal having at least one base channel, the base channel being derived from the original multi-channel signal, the input signal further including at least two different up-mixing parameters, and an up-mixer mode indication 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 so that the at least three output channels 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产生至少三个输出通道，所述基本通道从原始多通道信号导出，所述输入信号还包括至少两个不同的上混参数，以及向上混合模式指示，其指示在要执行第一上调规则的第一状态中，并且在第二状态中指示要执行不同的第二上调规则，使用向上混合器，用于响应于所述上混合器模式指示，基于所述第一或第二上混合规则，使用所述至少两个不同的上混合参数来上混合所述至少一个基本信道，使得所述至少三个输出信道获得。

5. 发明申请

US20070002971A1 Apparatus and method for generating a level parameter and apparatus and method for generating a multi-channel representation 有权
标题翻译：用于产生水平参数的装置和方法以及用于生成多声道表示的装置和方法
公开(公告)号：US20070002971A1
公开(公告)日：2007-01-04
申请号：US11517900
申请日：2006-09-08
申请人： Heiko Purnhagen , Lars Villemoes , Jonas Engdegard , Jonas Roeden , Kristofer Kjoerling
发明人： Heiko Purnhagen , Lars Villemoes , Jonas Engdegard , Jonas Roeden , Kristofer Kjoerling
IPC分类号： H04L27/00
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 parameter representation of a multi-channel signal having several original channels includes a parameter set, which, when used together with at least one down-mix channel allows a multi-channel reconstruction. An additional level parameter is calculated such that an energy of the at least one downmix channel weighted by the level parameter is equal to a sum of energies of the original channels. The additional level parameter is transmitted to a multi-channel reconstructor together with the parameter set or together with a down-mix channel. An apparatus for generating a multi-channel representation uses the level parameter to correct the energy of the at least one transmitted down-mix channel before entering the down-mix signal into an up-mixer or within the up-mixing process.
摘要翻译：具有多个原始信道的多信道信号的参数表示包括参数集合，当与至少一个缩减混合信道一起使用时，允许多信道重构。计算附加电平参数，使得由电平参数加权的至少一个下混通道的能量等于原始通道的能量之和。附加电平参数与参数组一起发送到多通道重构器，或与降混频道一起发送。用于产生多通道表示的装置使用电平参数来校正至少一个发送的下混通道的能量，然后再将其进入上混频器或上混频过程。

6. 发明授权

US08693696B2 Apparatus and method for generating a level parameter and apparatus and method for generating a multi-channel representation 有权
标题翻译：用于产生水平参数的装置和方法以及用于生成多声道表示的装置和方法
公开(公告)号：US08693696B2
公开(公告)日：2014-04-08
申请号：US12872507
申请日：2010-08-31
申请人： Heiko Purnhagen , Lars Villemoes , Jonas Engdegard , Jonas Roeden , Kristofer Kjoerling
发明人： Heiko Purnhagen , Lars Villemoes , Jonas Engdegard , Jonas Roeden , Kristofer Kjoerling
IPC分类号： H04R5/00
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 parameter representation of a multi-channel signal having several original channels includes a parameter set, which, when used together with at least one down-mix channel allows a multi-channel reconstruction. An additional level parameter is calculated such that an energy of the at least one downmix channel weighted by the level parameter is equal to a sum of energies of the original channels. The additional level parameter is transmitted to a multi-channel reconstructor together with the parameter set or together with a down-mix channel. An apparatus for generating a multi-channel representation uses the level parameter to correct the energy of the at least one transmitted downmix channel before entering the down-mix signal into an upmixer or within the up-mixing process.
摘要翻译：具有多个原始信道的多信道信号的参数表示包括参数集合，当与至少一个缩减混合信道一起使用时，允许多信道重构。计算附加电平参数，使得由电平参数加权的至少一个下混通道的能量等于原始通道的能量之和。附加电平参数与参数组一起发送到多通道重构器，或与降混频道一起发送。用于产生多通道表示的装置使用电平参数来校正至少一个发送的下混通道的能量，然后再将上混合信号输入上混器或在上混合过程中。

7. 发明授权

US07986789B2 Method for representing multi-channel audio signals 有权
标题翻译：表示多声道音频信号的方法
公开(公告)号：US07986789B2
公开(公告)日：2011-07-26
申请号：US11549963
申请日：2006-10-16
申请人： Heiko Purnhagen , Lars Villemoes , Jonas Engdegard , Jonas Roeden , Kristofer Kjoerling
发明人： Heiko Purnhagen , Lars Villemoes , Jonas Engdegard , Jonas Roeden , Kristofer Kjoerling
IPC分类号： H04R5/00 , G06F17/00
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, a first coherence parameter, or a first inter-channel time difference between a first channel pair and a second balance parameter, 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 has two channels, which are different from two channels of a second channel pair. Furthermore, each channel of the two channel 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 output 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。在第二通道对之间的第一通道对和第二平衡参数之间的第一平衡参数，第一相干参数或第一通道间时间差或第二相干参数或第二通道间差参数是计算。这组参数是原始信号的参数表示。第一通道对具有两个通道，它们与第二通道对的两个通道不同。此外，两个信道对的每个信道是原始信道之一或原始信道的加权组合，并且第一信道对和第二信道对包括关于三个原始信道的信息。对于多通道重建的目的，除了降混信息之外还使用这些参数，以便以可缩放的方式生成可选数量的输出通道。

8. 发明申请

US20070258607A1 Method for representing multi-channel audio signals 有权
标题翻译：表示多声道音频信号的方法
公开(公告)号：US20070258607A1
公开(公告)日：2007-11-08
申请号：US11549963
申请日：2006-10-16
申请人： Heiko Purnhagen , Lars Villemoes , Jonas Engdegard , Jonas Roeden , Kristofer Kjoerling
发明人： Heiko Purnhagen , Lars Villemoes , Jonas Engdegard , Jonas Roeden , Kristofer Kjoerling
IPC分类号： H04R5/02
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, a first coherence parameter, or a first inter-channel time difference between a first channel pair and a second balance parameter, 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 has two channels, which are different from two channels of a second channel pair. Furthermore, each channel of the two channel 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 output channels in a scalable fashion.
摘要翻译：具有至少三个原始信道的多声道输入信号由多声道信号的参数表示来表示。在第二通道对之间的第一通道对和第二平衡参数之间的第一平衡参数，第一相干参数或第一通道间时间差或第二相干参数或第二通道间差参数是计算。这组参数是原始信号的参数表示。第一通道对具有两个通道，它们与第二通道对的两个通道不同。此外，两个信道对的每个信道是原始信道之一或原始信道的加权组合，并且第一信道对和第二信道对包括关于三个原始信道的信息。对于多通道重建的目的，除了降混信息之外还使用这些参数，以便以可缩放的方式生成可选数量的输出通道。

9. 发明授权

US08538031B2 Method for representing multi-channel audio signals 有权
标题翻译：表示多声道音频信号的方法
公开(公告)号：US08538031B2
公开(公告)日：2013-09-17
申请号：US12882894
申请日：2010-09-15
申请人： Heiko Purnhagen , Lars Villemoes , Jonas Engdegard , Jonas Roeden , Kristofer Kjoerling
发明人： Heiko Purnhagen , Lars Villemoes , Jonas Engdegard , Jonas Roeden , Kristofer Kjoerling
IPC分类号： H04R5/00 , G06F17/00
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, a first coherence parameter, or a first inter-channel time difference between a first channel pair and a second balance parameter, 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 has two channels, which are different from two channels of a second channel pair. Furthermore, each channel of the two channel 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 output 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。在第二通道对之间的第一通道对和第二平衡参数之间的第一平衡参数，第一相干参数或第一通道间时间差或第二相干参数或第二通道间差参数是计算。这组参数是原始信号的参数表示。第一通道对具有两个通道，它们与第二通道对的两个通道不同。此外，两个信道对的每个信道是原始信道之一或原始信道的加权组合，并且第一信道对和第二信道对包括关于三个原始信道的信息。对于多通道重建的目的，除了降混信息之外还使用这些参数，以便以可缩放的方式生成可选数量的输出通道。

10. 发明授权

US08223976B2 Apparatus and method for generating a level parameter and apparatus and method for generating a multi-channel representation 有权
标题翻译：用于产生水平参数的装置和方法以及用于生成多声道表示的装置和方法
公开(公告)号：US08223976B2
公开(公告)日：2012-07-17
申请号：US11517900
申请日：2006-09-08
申请人： Heiko Purnhagen , Lars Villemoes , Jonas Engdegard , Jonas Roeden , Kristofer Kjoerling
发明人： Heiko Purnhagen , Lars Villemoes , Jonas Engdegard , Jonas Roeden , Kristofer Kjoerling
IPC分类号： H04R5/00
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 parameter representation of a multi-channel signal having several original channels includes a parameter set, which, when used together with at least one down-mix channel allows a multi-channel reconstruction. An additional level parameter is calculated such that an energy of the at least one downmix channel weighted by the level parameter is equal to a sum of energies of the original channels. The additional level parameter is transmitted to a multi-channel reconstructor together with the parameter set or together with a down-mix channel. An apparatus for generating a multi-channel representation uses the level parameter to correct the energy of the at least one transmitted down-mix channel before entering the down-mix signal into an up-mixer or within the up-mixing process.
摘要翻译：具有多个原始信道的多信道信号的参数表示包括参数集合，当与至少一个缩减混合信道一起使用时，允许多信道重构。计算附加电平参数，使得由电平参数加权的至少一个下混通道的能量等于原始通道的能量之和。附加电平参数与参数组一起发送到多通道重构器，或与降混频道一起发送。用于产生多通道表示的装置使用电平参数来校正至少一个发送的下混合信道的能量，然后将其进入上混频器中或在上混频过程中。

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