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31. 发明授权

US08515759B2 Apparatus and method for synthesizing an output signal 有权
标题翻译：用于合成输出信号的装置和方法
公开(公告)号：US08515759B2
公开(公告)日：2013-08-20
申请号：US12597740
申请日：2008-04-23
申请人： Jonas Engdegard , Heiko Purnhagen , Barbara Resch , Lars Villemoes , Cornelia Falch , Juergen Herre , Johannes Hilpert , Andreas Hoelzer , Leonid Terentiev
发明人： Jonas Engdegard , Heiko Purnhagen , Barbara Resch , Lars Villemoes , Cornelia Falch , Juergen Herre , Johannes Hilpert , Andreas Hoelzer , Leonid Terentiev
IPC分类号： G10L13/00
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 for generating a decorrelator signal based on a downmix signal, and a combiner for performing a weighted combination of the downmix signal and a decorrelated signal based on parametric audio object information, downmix information and target rendering information. 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通道和第二音频通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，以及用于执行下混合信号和去相关信号的加权组合的组合器参数音频对象信息，下混信息和目标渲染信息。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。

32. 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。

33. 发明申请

US20100094631A1 APPARATUS AND METHOD FOR SYNTHESIZING AN OUTPUT SIGNAL 有权
标题翻译：用于合成输出信号的装置和方法
公开(公告)号：US20100094631A1
公开(公告)日：2010-04-15
申请号：US12597740
申请日：2008-04-23
申请人： Jonas Engdegard , Heiko Purnhagen , Barbara Resch , Lars Villemoes , Cornelia Falch , Juergen Herre , Johannes Hilpert , Andreas Hoelzer , Leonid Terentiev
发明人： Jonas Engdegard , Heiko Purnhagen , Barbara Resch , Lars Villemoes , Cornelia Falch , Juergen Herre , Johannes Hilpert , Andreas Hoelzer , Leonid Terentiev
IPC分类号： G10L13/00
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 for generating a decorrelator signal based on a downmix signal, and a combiner for performing a weighted combination of the downmix signal and a decorrelated signal based on parametric audio object information, downmix information and target rendering information. 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通道和第二音频通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，以及用于执行下混合信号和去相关信号的加权组合的组合器参数音频对象信息，下混信息和目标渲染信息。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。

34. 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。

35. 发明授权

US08731950B2 Apparatus for providing one or more adjusted parameters for a provision of an upmix signal representation on the basis of a downmix signal representation, audio signal decoder, audio signal transcoder, audio signal encoder, audio bitstream, method and computer program using an object-related parametric information 有权
标题翻译：用于提供一个或多个经调整的参数的装置，用于基于下混合信号表示，音频信号解码器，音频信号代码转换器，音频信号编码器，音频比特流，使用对象相关参数的方法和计算机程序提供上混合信号表示信息
公开(公告)号：US08731950B2
公开(公告)日：2014-05-20
申请号：US13284583
申请日：2011-10-28
申请人： Juergen Herre , Andreas Hoelzer , Leonid Terentiev , Thorsten Kastner , Cornelia Falch , Heiko Purnhagen , Jonas Engdegard , Falko Ridderbusch
发明人： Juergen Herre , Andreas Hoelzer , Leonid Terentiev , Thorsten Kastner , Cornelia Falch , Heiko Purnhagen , Jonas Engdegard , Falko Ridderbusch
IPC分类号： G10L19/00
CPC分类号： G10L19/008 , G10L19/20
摘要： An apparatus for providing one or more adjusted parameters for a provision of an upmix signal representation on the basis of a downmix signal representation and an object-related parametric information includes a parameter adjuster. The parameter adjuster is configured to receive one or more input parameters and to provide, on the basis thereof, one or more adjusted parameters. The parameter adjuster is configured to provide the one or more adjusted parameters in dependence on the one or more input parameters and the object-related parametric information, such that a distortion of the upmix signal representation caused by the use of non-optimal parameters is reduced at least for input parameters deviating from optimal parameters by more than a predetermined deviation.
摘要翻译：基于下混合信号表示和对象相关参数信息，提供用于提供上混合信号表示的一个或多个调整参数的装置包括参数调整器。参数调整器被配置为接收一个或多个输入参数并且在其基础上提供一个或多个调整的参数。参数调整器被配置为根据一个或多个输入参数和对象相关参数信息来提供一个或多个经调整的参数，使得由使用非最优参数引起的上混信号表示的失真减少至少对于偏离最佳参数的输入参数大于预定偏差。

36. 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。

37. 发明申请

US20130142340A1 CONCEALMENT OF INTERMITTENT MONO RECEPTION OF FM STEREO RADIO RECEIVERS 有权
标题翻译： FM立体声无线电接收机的间接单声道接收
公开(公告)号：US20130142340A1
公开(公告)日：2013-06-06
申请号：US13816459
申请日：2011-08-16
申请人： Leif Sehlstrom , Heiko Purnhagen , Jonas Engdegard
发明人： Leif Sehlstrom , Heiko Purnhagen , Jonas Engdegard
IPC分类号： H04R5/00
CPC分类号： H04R5/00 , G10L19/005 , G10L19/008 , G10L21/0364 , H04B1/1676 , H04H40/81
摘要： The present invention relates to audio signal processing. In particular, it relates to a method and system for reliably concealing intermittent mono reception of FM stereo radio receivers. The system comprises a parametric stereo parameter estimation stage configured to determine a first parametric stereo parameter based on a first frame of the received two-channel audio signal. The system further comprises a concealment detection stage configured to determine an energy of a side signal within the first signal frame; determine a number of following successive signal frames during which the energy of the side signal drops from a value above the high threshold to a value below a low threshold; determine that the two-channel audio signal following the first signal frame is a forced mono signal if the number of successive signal frames is below a frame threshold; and determine the parametric stereo parameter based on the first parametric stereo parameter.
摘要翻译：本发明涉及音频信号处理。特别涉及用于可靠地隐藏FM立体声无线电接收机的间歇单声道接收的方法和系统。该系统包括参数立体声参数估计级，其被配置为基于所接收的双声道音频信号的第一帧来确定第一参数立体声参数。所述系统还包括隐藏检测级，被配置为确定所述第一信号帧内的侧信号的能量; 确定随后的连续信号帧的数量，在此期间，侧信号的能量从高于高阈值的值下降到低于低阈值的值; 如果连续信号帧的数量低于帧阈值，则确定跟随第一信号帧的双声道音频信号是强制单声道信号; 并根据第一参数立体声参数确定参数立体声参数。

38. 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。

39. 发明授权

US07974847B2 Advanced methods for interpolation and parameter signalling 有权
标题翻译：插值和参数信号的高级方法
公开(公告)号：US07974847B2
公开(公告)日：2011-07-05
申请号：US11286199
申请日：2005-11-22
申请人： Kristofer Kjoerling , Heiko Purnhagen , Jonas Engdegard , Jonas Roeden
发明人： Kristofer Kjoerling , Heiko Purnhagen , Jonas Engdegard , Jonas Roeden
IPC分类号： G10L19/00
CPC分类号： G10L19/008
摘要： A parameter calculator calculates lower resolution parametric information and interpolation information. On a decoder-side, an upmixer is used for generating the output channels. The upmixer uses high resolution parametric information generated by a parameter interpolator using the low resolution parametric information and decoder-side derived interpolation information or encoder-generated interpolation information for selecting one of a plurality of different interpolation characteristics.
摘要翻译：参数计算器计算低分辨率参数信息和插值信息。在解码器侧，上混频器用于产生输出通道。上混频器使用由参数内插器产生的高分辨率参数信息，其使用低分辨率参数信息和解码器侧导出的内插信息或编码器生成的用于选择多个不同插值特性之一的内插信息。

40. 发明申请

US20110075848A1 Apparatus and Method for Generating a Level Parameter and Apparatus and Method for Generating a Multi-Channel Representation 有权
标题翻译：用于生成电平参数的装置和方法以及用于产生多声道表示的装置和方法
公开(公告)号：US20110075848A1
公开(公告)日：2011-03-31
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： H04H20/47
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。

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