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1.发明公开AUDIO SIGNAL DECODER, AUDIO SIGNAL ENCODER, METHOD FOR PROVIDING AN UPMIX SIGNAL REPRESENTATION, METHOD FOR PROVIDING A DOWNMIX SIGNAL REPRESENTATION, COMPUTER PROGRAM AND BITSTREAM USING A COMMON INTER-OBJECT-CORRELATION PARAMETER VALUE 有权MPEG-SAOC音频信号解码器，一种使用解码MPEG-SAOC与计算机程序的提供混信号使用时间/频率相关JOINT INTER-物体相关的参数参数值
公开(公告)号：EP2483887A1
公开(公告)日：2012-08-08
申请号：EP10757435.2
申请日：2010-09-28
申请人： Fraunhofer Gesellschaft zur Förderung der angewandten Wissenschaft E.V. , Dolby International AB
CPC分类号： G10L19/008 , G10L19/005 , G10L19/20 , H04S3/02 , H04S5/005 , H04S2420/03
摘要： An audio signal decoder for providing an upmix signal representation on the basis of a downmix signal representation and an object-related parametric information and in dependence on a rendering information comprises an object parameter determinator. The object parameter determinator is configured to obtain inter-object-correlation values for a plurality of pairs of audio objects. The object parameter determinator is configured to evaluate a bitstream signaling parameter in order to decide whether to evaluate individual inter-object-correlation bitstream parameter values to obtain inter-object-correlation values for a plurality of pairs of related audio objects, or to obtain inter-object-correlation values for a plurality of pairs of related audio objects using a common inter-object-correlation bitstream parameter value. The audio signal decoder also comprises a signal processor configured to obtain the upmix signal representation on the basis of the downmix signal representation and using the inter-object-correlation values for a plurality of pairs of related objects and the rendering information.
摘要翻译： 用于提供对上混的下混合信号表示的基础上，信号表示和所述的音频信号解码器的对象相关的参数信息，并在一个渲染信息相依性包含对象参数确定的。 对象参数确定器被配置以获得用于对音频对象中的多元对象间互相关值。 对象参数确定器被配置成评估一个比特流，以便决定是否要评估个体对象间互相关的比特流的参数值，以获得用于对相关音频对象的一个。多个对象间互相关值，或获得除信令参数 用于使用共用对象间互相关位流参数值相关音频对象对一个多元化-object相关值。 音频信号解码器，以便包括被配置为获得所述下混信号表示的基础上，上混信号表示，并使用对象间互相关值对相关对象的多个部分并加以渲染信息的信号处理器。
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2.发明公开
公开(公告)号：EP2524370A1
公开(公告)日：2012-11-21
申请号：EP11700088.5
申请日：2011-01-11
IPC分类号： G10L19/00
CPC分类号： G10L19/008
摘要： An apparatus for extracting a direct and/or ambience signal from a downmix signal and spatial parametric information, the downmix signal and the spatial parametric information representing a multi-channel audio signal having more channels than the downmix signal, wherein the spatial parametric information comprises inter-channel relations of the multi-channel audio signal, is described. The apparatus comprises a direct/ambience estimator and a direct/ambience extractor. The direct/ambience estimator is configured for estimating a level information of a direct portion and/or an ambient portion of the multi-channel audio signal based on the spatial parametric information. The direct/ambience extractor is configured for extracting a direct signal portion and/or an ambient signal portion from the downmix signal based on the estimated level information of the direct portion or the ambient portion.
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3.发明公开APPARATUS AND METHOD FOR SPATIALLY SELECTIVE SOUND ACQUISITION BY ACOUSTIC TRIANGULATION 审中-公开DEVICE AND METHOD FOR修订的声学三角空间选择性碳粉
公开(公告)号：EP2647221A1
公开(公告)日：2013-10-09
申请号：EP11808175.1
申请日：2011-12-02
申请人： Fraunhofer Gesellschaft zur Förderung der angewandten Wissenschaft E.V. , Friedrich-Alexander-Universität Erlangen-Nürnberg
摘要： An apparatus for capturing audio information from a target location includes first and second beamformers arranged in a recording environment and having first and second recording characteristics, respectively, and a signal generator. The first and second beamformers are configured for recording first and second beamformer audio signals, respectively, when they are directed towards the target location with respect to the first and second recording characteristics. The first and second beamformers are arranged such that first and second virtual straight lines, defined to pass through the first and second beamformers, respectively, and the target location, are not mutually parallel. The signal generator is configured to generate an audio output signal based on the first and second beamformer audio signals so that the audio output signal reflects relatively more audio information from the target location compared to the audio information from the target location in the first and second beamformer audio signals.
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4.发明授权MPEG-SAOC AUDIO SIGNAL DECODER, METHOD FOR PROVIDING AN UPMIX SIGNAL REPRESENTATION USING MPEG-SAOC DECODING AND COMPUTER PROGRAM USING A TIME/FREQUENCY-DEPENDENT COMMON INTER-OBJECT-CORRELATION PARAMETER VALUE 有权MPEG-SAOC音频信号解码器，使用MPEG-SAOC解码和计算机程序提供UPMIX信号表示的方法，使用时间/频率相关的公共对象关联参数值
公开(公告)号：EP2483887B1
公开(公告)日：2017-07-26
申请号：EP10757435.2
申请日：2010-09-28
CPC分类号： G10L19/008 , G10L19/005 , G10L19/20 , H04S3/02 , H04S5/005 , H04S2420/03
摘要： An audio signal decoder for providing an upmix signal representation on the basis of a downmix signal representation and an object-related parametric information and in dependence on a rendering information comprises an object parameter determinator. The object parameter determinator is configured to obtain inter-object-correlation values for a plurality of pairs of audio objects. The object parameter determinator is configured to evaluate a bitstream signaling parameter in order to decide whether to evaluate individual inter-object-correlation bitstream parameter values to obtain inter-object-correlation values for a plurality of pairs of related audio objects, or to obtain inter-object-correlation values for a plurality of pairs of related audio objects using a common inter-object-correlation bitstream parameter value. The audio signal decoder also comprises a signal processor configured to obtain the upmix signal representation on the basis of the downmix signal representation and using the inter-object-correlation values for a plurality of pairs of related objects and the rendering information.
摘要翻译： 用于基于下混合信号表示和对象相关参数信息以及取决于呈现信息来提供上混信号表示的音频信号解码器包括对象参数确定器。 对象参数确定器被配置为获得多对音频对象的对象间相关值。 对象参数确定器被配置为评估比特流信令参数，以便决定是否评估各个对象间相关比特流参数值以获得多对相关音频对象的对象间相关值，或者获得帧间 使用公共对象间相关比特流参数值来确定多个相关音频对象对的对象相关值。 音频信号解码器还包括信号处理器，该信号处理器被配置为基于下混合信号表示并且针对多对相关对象和渲染信息使用对象间相关值来获得上混信号表示。
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5.发明授权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, METHOD AND COMPUTER PROGRAM USING AN OBJECT-RELATED PARAMETRIC INFORMATION 有权装置，提供一个或多个调整参数用于提供混信号表示对下混信号表示的基础上，音频信号解码器，AUDIOSIGNALTRANSCODER，方法和计算机程序产品，其一个目的相关参数信息USE
公开(公告)号：EP2425427B1
公开(公告)日：2014-09-10
申请号：EP10716830.4
申请日：2010-04-28
发明人： HERRE, Jürgen , HOELZER, Andreas , TERENTIEV, Leonid , KASTNER, Thorsten , FALCH, Cornelia , PURNHAGEN, Heiko , ENGDEGARD, Jonas , RIDDERBUSCH, Falco
IPC分类号： G10L19/008 , G10L19/20
CPC分类号： G10L19/008 , G10L19/20
摘要： An audio signal encoder (600) for providing a downmix signal representation (614) and an object-related parametric information (616) on the basis of a plurality of object signals (x 1 to x N ) comprises a downmixer (620) configured to provide one or more downmix signals in dependence on downmix coefficients (d 1 to d N ) associated with the object signals (x 1 to x N ), such that the one or more downmix signals comprise a superposition of a plurality of object signals, and a side information provider (630) configured to provide an inter-object-relationship side information (OLD, IOC) describing level differences and correlation characteristics of object signals (x 1 to x N ) and an individual-object side information describing one or more individual properties of the individual object signals (x 1 to x N ).
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6.发明公开APPARATUS FOR PROVIDING AN UPMIX SIGNAL REPRESENTATION ON THE BASIS OF A DOWNMIX SIGNAL REPRESENTATION, APPARATUS FOR PROVIDING A BITSTREAM REPRESENTING A MULTICHANNEL AUDIO SIGNAL, METHODS, COMPUTER PROGRAM AND BITSTREAM USING A DISTORTION CONTROL SIGNALING 有权装置，提供一种混合UP信号表示上的下混频信号表示的基础上，一种用于提供的比特流用于表示音频信号和方法，计算机程序并与DISTORTION控制信令STREAM
公开(公告)号：EP2491551A1
公开(公告)日：2012-08-29
申请号：EP10765803.1
申请日：2010-10-19
发明人： ENGDEGARD, Jonas , PURNHAGEN, Heiko , HERRE, Jürgen , TERENTIV, Leon , FALCH, Cornelia , HELLMUTH, Oliver
IPC分类号： G10L19/00
CPC分类号： H04S3/008 , G10L19/008 , H04S2420/03
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, and in dependence on a rendering information, has a distortion limiter configured to adjust upmix parameters using a distortion control scheme to avoid or limit audible distortions which are caused by an inappropriate choice of rendering parameters. The distortion limiter is configured to obtain a distortion limitation control parameter, which is included in the bitstream representation of the audio content, and to adjust a distortion control scheme in dependence on the distortion limitation control parameter.
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7.发明授权APPARATUS FOR PROVIDING AN UPMIX SIGNAL REPRESENTATION ON THE BASIS OF A DOWNMIX SIGNAL REPRESENTATION, APPARATUS FOR PROVIDING A BITSTREAM REPRESENTING A MULTICHANNEL AUDIO SIGNAL, METHODS, COMPUTER PROGRAM AND BITSTREAM USING A DISTORTION CONTROL SIGNALING 有权装置，提供一种混合UP信号表示上的下混频信号表示的基础上，一种用于提供的比特流用于表示音频信号和方法，计算机程序并与DISTORTION控制信令STREAM
公开(公告)号：EP2491551B1
公开(公告)日：2015-01-07
申请号：EP10765803.1
申请日：2010-10-19
发明人： ENGDEGARD, Jonas , PURNHAGEN, Heiko , HERRE, Jürgen , TERENTIV, Leon , FALCH, Cornelia , HELLMUTH, Oliver
IPC分类号： G10L19/008 , H04S3/00
CPC分类号： H04S3/008 , G10L19/008 , H04S2420/03
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, and in dependence on a rendering information, has a distortion limiter configured to adjust upmix parameters using a distortion control scheme to avoid or limit audible distortions which are caused by an inappropriate choice of rendering parameters. The distortion limiter is configured to obtain a distortion limitation control parameter, which is included in the bitstream representation of the audio content, and to adjust a distortion control scheme in dependence on the distortion limitation control parameter.
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8.发明公开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 有权装置，提供一个或多个调整参数用于提供混信号表示对下混信号表示的基础上，音频信号解码器，AUDIOSIGNALTRANSCODER，方法和计算机程序产品，其一个目的相关参数信息USE
公开(公告)号：EP2425427A1
公开(公告)日：2012-03-07
申请号：EP10716830.4
申请日：2010-04-28
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. , Dolby International AB , Friedrich-Alexander-Universität Erlangen-Nürnberg
发明人： HERRE, Jürgen , HOELZER, Andreas , TERENTIEV, Leonid , KASTNER, Thorsten , FALCH, Cornelia , PURNHAGEN, Heiko , ENGDEGARD, Jonas , RIDDERBUSCH, Falco
CPC分类号： G10L19/008 , G10L19/20
摘要： An audio signal encoder (600) for providing a downmix signal representation (614) and an object-related parametric information (616) on the basis of a plurality of object signals (x 1 to x N ) comprises a downmixer (620) configured to provide one or more downmix signals in dependence on downmix coefficients (d 1 to d N ) associated with the object signals (x 1 to x N ), such that the one or more downmix signals comprise a superposition of a plurality of object signals, and a side information provider (630) configured to provide an inter-object-relationship side information (OLD, IOC) describing level differences and correlation characteristics of object signals (x 1 to x N ) and an individual-object side information describing one or more individual properties of the individual object signals (x 1 to x N ).
摘要翻译： 用于提供下混信号表示（614）和音频信号编码器（600）对象有关的对象信号（X 1至X N）的多个的基础上的参数信息（616）包括被配置成一个下混频器（620） 在与所述对象信号（X 1至X N）相关联的缩混系数（D 1至D N）的依赖性提供一个或多个下混合信号，审查没有所述一个或多个下混合信号包括对象信号的多个叠加，并 配置一个辅助信息提供者（630），以提供到对象间关系的辅助信息（OLD，IOC）描述电平差和对象信号（X 1至X N）的相关特性，以及单个对象侧信息描述的一个或多个 各个对象信号的个人属性（x 1至x N）。
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公开(公告)号：EP2082397B1
公开(公告)日：2011-12-28
申请号：EP07818758.0
申请日：2007-10-05
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. , Dolby International AB , Koninklijke Philips Electronics N.V.
发明人： HILPERT, Johannes , LINZMEIER, Karsten , HERRE, Jürgen , SPERSCHNEIDER, Ralph , HÖLZER, Andreas , VILLEMOES, Lars , ENGDEGARD, Jonas , PURNHAGEN, Heiko , KJÖRLING, Kristofer , BREEBAART, Jeroen , OOMEN, Werner
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 loudspeake 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 comprise 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.
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