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1. 发明授权

US08687829B2 Apparatus and method for multi-channel parameter transformation 有权
标题翻译：多通道参数变换装置及方法
公开(公告)号：US08687829B2
公开(公告)日：2014-04-01
申请号：US12445699
申请日：2007-10-05
申请人： Johannes Hilpert , Karsten Linzmeier , Juergen Herre , Ralph Sperschneider , Andreas Hoelzer , Lars Villemoes , Jonas Engdegard , Heiko Purnhagen , Kristofer Kjoerling , Dirk Jeroen Breebaart , Werner Oomen
发明人： Johannes Hilpert , Karsten Linzmeier , Juergen Herre , Ralph Sperschneider , Andreas Hoelzer , Lars Villemoes , Jonas Engdegard , Heiko Purnhagen , Kristofer Kjoerling , Dirk Jeroen Breebaart , Werner Oomen
IPC分类号： H04R5/02
CPC分类号： G10L19/173 , G10L19/008 , H04S2420/03
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 loudspeaker 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 have 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.
摘要翻译：参数变换器产生电平参数，指示与多声道扬声器配置相关联的多声道音频信号的第一和第二音频声道之间的能量关系。基于与下混通道相关联的多个音频对象的对象参数生成电平参数，该对象参数是使用与音频对象相关联的对象音频信号生成的。对象参数具有指示对象音频信号的能量的能量参数。为了得出一致性和等级参数，使用参数生成器，其结合能量参数和对象渲染参数，其依赖于所需的呈现配置。

2. 发明授权

US08571877B2 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 有权
标题翻译：用于基于下混信号表示提供上混合信号表示的装置，用于提供表示多声道音频信号的比特流的装置，表示使用线性组合参数的多声道音频信号的方法，计算机程序和比特流
公开(公告)号：US08571877B2
公开(公告)日：2013-10-29
申请号：US13475084
申请日：2012-05-18
申请人： Jonas Engdegard , Heiko Purnhagen , Juergen Herre , Cornelia Falch , Oliver Hellmuth , Leon Terentiv
发明人： Jonas Engdegard , Heiko Purnhagen , Juergen Herre , Cornelia Falch , Oliver Hellmuth , Leon Terentiv
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 has 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 has 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：一种用于根据用户指定的渲染矩阵独立地包括在音频内容的比特流表示中的下混信号表示和对象相关的参数信息来提供上混合信号表示的装置，该装置具有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。该装置还具有信号处理器，其被配置为基于下混合信号表示和使用修改的渲染矩阵的对象相关参数信息来获得上混信号表示。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。

3. 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。

4. 发明授权

US08054981B2 Energy dependent quantization for efficient coding of spatial audio parameters 有权
标题翻译：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。

5. 发明申请

US20110235810A1 APPARATUS AND METHOD FOR GENERATING A MULTI-CHANNEL SYNTHESIZER CONTROL SIGNAL, MULTI-CHANNEL SYNTHESIZER, METHOD OF GENERATING AN OUTPUT SIGNAL FROM AN INPUT SIGNAL AND MACHINE-READABLE STORAGE MEDIUM 有权
标题翻译：用于产生多通道合成器控制信号，多通道合成器的装置和方法，从输入信号和机器可读存储介质生成输出信号的方法
公开(公告)号：US20110235810A1
公开(公告)日：2011-09-29
申请号：US13158863
申请日：2011-06-13
申请人： MATTHIAS NEUSINGER , JÜRGEN HERRE , SASCHA DISCH , HEIKO PURNHAGEN , KRISTOFER KJÖRLING , JONAS ENGDEGARD , JEROEN BREEBAART , ERIK SCHUIJERS , WERNER OOMEN
发明人： MATTHIAS NEUSINGER , JÜRGEN HERRE , SASCHA DISCH , HEIKO PURNHAGEN , KRISTOFER KJÖRLING , JONAS ENGDEGARD , JEROEN BREEBAART , ERIK SCHUIJERS , WERNER OOMEN
IPC分类号： H04R5/00
CPC分类号： G10L19/26 , G10L19/008 , G10L2019/0012 , H04S3/008
摘要： An apparatus and a method for generating a multi-channel synthesizer control signal, a multi-channel synthesizer, a method of generating an output signal from an input signal and a machine-readable storage medium are provided. On an encoder-side, a multi-channel input signal is analyzed for obtaining smoothing control information, which is to be used by a decoder-side multi-channel 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：提供一种用于产生多声道合成器控制信号的装置和方法，多声道合成器，从输入信号产生输出信号的方法和机器可读存储介质。在编码器侧，分析多通道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信道合成用于平滑经量化的传输参数或从量化的传输参数导出的值，以提供改善主观音频质量，特别是对于缓慢移动的点源和具有诸如快速移动的正弦波的音调材料的快速移动的点源。

6. 发明申请

US20110211703A1 Stereo Compatible Multi-Channel Audio Coding 有权
标题翻译：立体声兼容多声道音频编码
公开(公告)号：US20110211703A1
公开(公告)日：2011-09-01
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
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。

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. 发明授权

US07966191B2 Method and apparatus for generating a number of output audio channels 有权
标题翻译：用于产生多个输出音频通道的方法和装置
公开(公告)号：US07966191B2
公开(公告)日：2011-06-21
申请号：US11995538
申请日：2006-07-07
申请人： Erik Gosuinus Petrus Schuijers , Gerard Herman Hotho , Heiko Purnhagen , Wolfgang Alexander Schildbach , Holger Horich , Hans Magnus Kristofer Kjorling , Karl Jonas Roden
发明人： Erik Gosuinus Petrus Schuijers , Gerard Herman Hotho , Heiko Purnhagen , Wolfgang Alexander Schildbach , Holger Horich , Hans Magnus Kristofer Kjorling , Karl Jonas Roden
IPC分类号： G10L19/00
CPC分类号： G10L19/008 , H04S2420/03
摘要： An audio encoder (109) has a hierarchical encoding structure and generates a data stream comprising one or more audio channels as well as parametric audio encoding data. The encoder (109) comprises an encoding structure processor (305) which inserts decoder tree structure data into the data stream. The decoder tree structure data comprises at least one data value indicative of a channel split characteristic for an audio channel at a hierarchical layer of the hierarchical decoder structure and may specifically specify the decoder tree structures to be applied by a decoder. A decoder (115) comprises a receiver (401) which receives the data stream and a decoder structure processor (405) for generating the hierarchical decoder structure in response to the decoder tree structure data. A decode processor (403) then generates output audio channels from the data stream using the hierarchical decoder structure.
摘要翻译：音频编码器（109）具有分层编码结构，并且生成包括一个或多个音频信道以及参数音频编码数据的数据流。编码器（109）包括将解码器树结构数据插入到数据流中的编码结构处理器（305）。解码器树结构数据包括指示分层解码器结构的分级层处的音频信道的信道分离特性的至少一个数据值，并且可以具体指定要由解码器应用的解码器树结构。解码器（115）包括接收数据流的接收机（401）和用于响应于解码器树结构数据产生分层解码器结构的解码器结构处理器（405）。解码处理器（403）然后使用分层解码器结构从数据流生成输出音频通道。

9. 发明授权

US07961890B2 Multi-channel hierarchical audio coding with compact side information 有权
标题翻译：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。

10. 发明申请

US20110013790A1 Apparatus and Method for Multi-Channel Parameter Transformation 有权
标题翻译：多通道参数变换装置与方法
公开(公告)号：US20110013790A1
公开(公告)日：2011-01-20
申请号：US12445699
申请日：2007-10-05
申请人： Johannes Hilpert , Karsten Linzmeier , Juergen Herre , Ralph Sperschneider , Andreas Hoelzer , Lars Villemoes , Jonas Engdegard , Heiko Purnhagen , Kristofer Kjoerling , Jeroen Breebaart , Werner Oomen
发明人： Johannes Hilpert , Karsten Linzmeier , Juergen Herre , Ralph Sperschneider , Andreas Hoelzer , Lars Villemoes , Jonas Engdegard , Heiko Purnhagen , Kristofer Kjoerling , Jeroen Breebaart , Werner Oomen
IPC分类号： H04R5/02
CPC分类号： G10L19/173 , G10L19/008 , H04S2420/03
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 loudspeaker 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 have 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.
摘要翻译：参数变换器产生电平参数，指示与多声道扬声器配置相关联的多声道音频信号的第一和第二音频声道之间的能量关系。基于与下混通道相关联的多个音频对象的对象参数生成电平参数，该对象参数是使用与音频对象相关联的对象音频信号生成的。对象参数具有指示对象音频信号的能量的能量参数。为了得出一致性和等级参数，使用参数生成器，其结合能量参数和对象渲染参数，其依赖于所需的呈现配置。

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