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11. 发明申请

WO2008046531A1 ENHANCED CODING AND PARAMETER REPRESENTATION OF MULTICHANNEL DOWNMIXED OBJECT CODING 审中-公开
标题翻译：多通道下行对象编码的增强编码和参数表示
公开(公告)号：WO2008046531A1
公开(公告)日：2008-04-24
申请号：PCT/EP2007/008683
申请日：2007-10-05
申请人： CODING TECHNOLOGIES AB , ENGDEGARD, Jonas , VILLEMOES, Lars , PURNHAGEN, Heiko , RESCH, Barbara
发明人： ENGDEGARD, Jonas , VILLEMOES, Lars , PURNHAGEN, Heiko , RESCH, Barbara
IPC分类号： G10L19/00
CPC分类号： G10L19/20 , G10L19/008 , H04S3/008 , H04S3/02 , H04S5/00 , H04S7/30 , H04S2400/03 , H04S2400/11 , H04S2420/03
摘要： An audio object coder for generating an encoded object signal using a plurality of audio objects includes a downmix information generator for generating downmix information indicating a distribution of the plurality of audio objects into at least two downmix channels, an audio object parameter generator for generating object parameters for the audio objects, and an output interface for generating the imported audio output signal using the downmix information and the object parameters. An audio synthesizer uses the downmix information for generating output data usable for creating a plurality of output channels of the predefined audio output configuration.
摘要翻译：一种用于使用多个音频对象生成编码对象信号的音频对象编码器包括：下混信息发生器，用于将表示多个音频对象的分布的下混信息生成到至少两个下混通道中;一个用于产生对象参数的音频对象参数发生器以及用于使用下混合信息和对象参数来生成导入的音频输出信号的输出接口。音频合成器使用下混信息来产生可用于创建预定音频输出配置的多个输出声道的输出数据。

12. 发明申请

WO2007031171A1 PARTIALLY COMPLEX MODULATED FILTER BANK 审中-公开
标题翻译：部分复杂调制滤波器
公开(公告)号：WO2007031171A1
公开(公告)日：2007-03-22
申请号：PCT/EP2006/008174
申请日：2006-08-18
申请人： CODING TECHNOLOGIES AB , EKSTRAND, Per , VILLEMOES, Lars , PURNHAGEN, Heiko
发明人： EKSTRAND, Per , VILLEMOES, Lars , PURNHAGEN, Heiko
IPC分类号： G10L19/02
CPC分类号： G10L19/0208
摘要： The present invention relates to an apparatus for processing a plurality of real-valued subband signals comprising a first real-valued subband signal and a second real-valued subband signal to provide at least a complex-valued subband signal with a multiband filter for providing an intermediate real-valued subband signal and a calculator for providing the complex-valued subband signal by combining a real-valued subband signal from the plurality of real-valued subband signals and the intermediate subband signal.
摘要翻译：本发明涉及一种用于处理多个实数子带信号的装置，包括第一实数子带信号和第二实数子带信号，以至少提供复数子带信号与多频带滤波器，以提供中间实数子带信号和用于通过组合来自多个实值子带信号和中间子带信号的实值子带信号来提供复值子带信号的计算器。

13. 发明申请

WO2007010451A1 GENERATION OF MULTI-CHANNEL AUDIO SIGNALS 审中-公开
标题翻译：多通道音频信号的产生
公开(公告)号：WO2007010451A1
公开(公告)日：2007-01-25
申请号：PCT/IB2006/052368
申请日：2006-07-12
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , CODING TECHNOLOGIES AB , AGERE SYSTEMS , BREEBAART, Dirk, J. , VILLEMOES, Lars, F. , PURNHAGEN, Heiko , FALLER, Christof
发明人： BREEBAART, Dirk, J. , VILLEMOES, Lars, F. , PURNHAGEN, Heiko , FALLER, Christof
IPC分类号： G10L19/00 , H04S3/00
CPC分类号： H04S3/008 , G10L19/008
摘要： A decoder (115) generates a multi channel audio signal, such as a surround sound signal, from a received first signal. The multi-channel signal comprises a second set of audio channels and the first signal comprises a first set of audio channels. The decoder (115) comprises a receiver (401) which receives the first signal. The receiver (401) is coupled to an estimate processor (405) which generates estimated parametric data for the second set of audio channels in response to characteristics of the first set of audio channels. The estimated parametric data relates characteristics of the second set of audio channels to characteristics of the first set of audio channels. The decoder (115) furthermore comprises a spatial audio decoder (403) which decodes the first signal in response to the estimated parametric data to generate the multi-channel signal comprising the second set of channels. The invention allows use of spatial audio decoding with signals that are not encoded by a spatial audio encoder.
摘要翻译：解码器（115）从接收的第一信号生成诸如环绕声信号的多声道音频信号。多声道信号包括第二组音频通道，第一信号包括第一组音频通道。解码器（115）包括接收第一信号的接收机（401）。接收器（401）耦合到估计处理器（405），该估计处理器响应于第一组音频通道的特性而产生第二组音频通道的估计参数数据。估计的参数数据将第二组音频通道的特性与第一组音频通道的特性相关联。解码器（115）还包括空间音频解码器（403），其响应于所估计的参数数据对第一信号进行解码，以产生包括第二组信道的多信道信号。本发明允许对空间音频编码器未编码的信号使用空间音频解码。

14. 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。

15. 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。

16. 发明申请

WO2006058590A1 INTERPOLATION AND SIGNALLING OF SPACIAL RECONSTRUCTION PARAMETERS FOR MULTICHANNEL CODING AND DECODING OF AUDIO SOURCES 审中-公开
标题翻译：用于多通道编码和解码音频源的空间重构参数的插值和信号
公开(公告)号：WO2006058590A1
公开(公告)日：2006-06-08
申请号：PCT/EP2005/011665
申请日：2005-10-31
申请人： CODING TECHNOLOGIES AB , KJÖRLING, Kristofer , PURNHAGEN, Heiko , RÖDEN, Jonas , ENDGEGARD, Jonas
发明人： KJÖRLING, Kristofer , PURNHAGEN, Heiko , RÖDEN, Jonas , ENDGEGARD, Jonas
IPC分类号： G10L19/00
CPC分类号： G10L19/008
摘要： The present application relates to multichannel source encoding and decoding. On a coder-side, a parameter calculator calculates lower resolution parametric information such as binaural cues, interpolation control information representing the choice of one of a plurality of interpolation characteristics, and generates a downmixed set of channels of the source. On a decoder-side, an upmixer (500) is used for generating the output channels (502) based on a downmixed set of encoded channels. The upmixer (500) uses high resolution parametric information (506) generated by a parameter interpolator (508) based on the low resolution parametric information (510) and decoder-side derived interpolation information (512) or encoder-generated interpolation information (512) for selecting one of a plurality of different interpolation characteristics.
摘要翻译：本申请涉及多信道源编码和解码。在编码器侧，参数计算器计算诸如双耳线索的低分辨率参数信息，表示多个插值特性之一的插值控制信息，并且生成源的下混合信道组。在解码器侧，上混合器（500）用于基于经编码的通道的下混组合产生输出通道（502）。上混合器（500）使用基于低分辨率参数信息（510）和解码器侧导出插值信息（512）或编码器生成的插值信息（512）由参数内插器（508）生成的高分辨率参数信息（506）用于选择多个不同插值特性之一。

17. 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。

18. 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。

19. 发明申请

WO2005101370A1 APPARATUS AND METHOD FOR GENERATING A LEVEL PARAMETER AND APPARATUS AND METHOD FOR GENERATING A MULTI-CHANNEL REPRESENTATION 审中-公开
标题翻译：用于产生水平参数的装置和方法以及用于产生多通道代表的装置和方法
公开(公告)号：WO2005101370A1
公开(公告)日：2005-10-27
申请号：PCT/EP2005/003848
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 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 al-lows a multi-channel reconstruction. An additional level parameter (rM) 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 generat-ing a multi-channel representation uses the level parameter to correct (902) 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：具有几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，多参数集合降低多信道重构。计算附加电平参数（rM），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（902）至少一个发送的下混频道的能量，然后再将上混合信号进入上混频器或在上混频处理。

20. 发明申请

WO2012025429A1 REDUCTION OF SPURIOUS UNCORRELATION IN FM RADIO NOISE 审中-公开
标题翻译：减少FM无线电噪声中的不寻常的不符合
公开(公告)号：WO2012025429A1
公开(公告)日：2012-03-01
申请号：PCT/EP2011/064077
申请日：2011-08-16
申请人： DOLBY INTERNATIONAL AB , ENGDEGARD, Jonas , PURNHAGEN, Heiko , SEHLSTROM, Leif
发明人： ENGDEGARD, Jonas , PURNHAGEN, Heiko , SEHLSTROM, Leif
IPC分类号： H04B1/16 , G10L19/00 , H04S1/00
CPC分类号： H04R5/04 , G10L19/008 , H04B1/1676 , H04S1/007
摘要： The document relates to audio signal processing, in particular to a system and a corresponding method for improving an audio signal of an FM stereo radio receiver, in this context, one aspect relates to the estimation of noise in a received side signal and the compensation of such noise in parametric stereo parameters. A system for generating a parametric stereo parameter from a two-channel audio signal is described. The two-channel audio signal is presentable as a mid signal and side signal representative of a corresponding left and right audio signal. The system comprises a noise estimation stage configured to determine an impact factor characteristic for the noise of the side signal; and a parametric stereo parameter estimation stage configured to determine the parametric stereo parameter; wherein the determining is based on the two-channel audio signal and the impact factor.
摘要翻译：本文件涉及音频信号处理，具体涉及用于改进FM立体声无线电接收机的音频信号的系统和相应方法，在本上下文中，一个方面涉及接收侧信号中的噪声估计和这样的噪声参数立体声参数。描述了一种用于从双声道音频信号产生参数立体声参数的系统。双声道音频信号可以作为表示相应的左和右音频信号的中间信号和侧面信号呈现。该系统包括噪声估计级，其被配置为确定侧信号的噪声的影响因子特性; 以及被配置为确定所述参数立体声参数的参数立体声参数估计级; 其中所述确定基于所述双声道音频信号和所述影响因子。

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