公开(公告)号：EP3996089A1

公开(公告)日：2022-05-11

申请号：EP21198132.9

申请日：2010-10-15

申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.

发明人： Herre, Jürgen ,  Falch, Cornelia ,  Terentiv, Leon

IPC分类号： G10L19/008

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 a parametric side information associated with the downmix signal representation comprises a parameter adjuster. The parameter adjuster is configured to receive one or more 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 an average value of a plurality of parameter values, such that a distortion of the upmix signal representation caused by the use of non-optimal parameters is reduced at least for parameters deviating from optimal parameters by more than a predetermined deviation.

公开(公告)号：EP2816555B1

公开(公告)日：2016-03-23

申请号：EP14180279.3

申请日：2010-04-28

申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. ,  Dolby International AB

发明人： Herre, Jürgen ,  Hölzer, Andreas ,  Terentiv, Leon ,  Falch, Cornelia ,  Purnhagen, Heiko ,  Engdegard, Jonas ,  Ridderbusch, Falko ,  Kastner, Thorsten

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 ).

公开(公告)号：EP2535892A1

公开(公告)日：2012-12-19

申请号：EP12183562.3

申请日：2010-06-23

申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.

发明人： Hellmuth, Oliver ,  Falch, Cornelia ,  Herre, Jürgen ,  Hilpert, Johannes ,  Ridderbusch, Falko ,  Terentiv, Leonid

IPC分类号： G10L19/00 ,  G10L19/14 ,  H04S7/00

CPC分类号： G10L19/20 ,  G10H1/361 ,  G10H2210/301 ,  G10L19/008 ,  H04S7/30 ,  H04S2400/11 ,  H04S2420/07

摘要： An audio signal decoder for providing an upmix signal representation in dependence on a downmix signal representation and an object-related parametric information comprises an object separator configured to decompose the downmix signal representation, to provide a first audio information describing a first set of one or more audio objects of a first audio object type and a second audio information describing a second set of one or more audio objects of a second audio object type, in dependence on the downmix signal representation and using at least a part of the object-related parametric information. The audio signal decoder also comprises an audio signal processor configured to receive the second audio information and to process the second audio information in dependence on the object-related parametric information, to obtain a processed version of the second audio information. The audio signal decoder also comprises an audio signal combiner configured to combine the first audio information with the processed version of the second audio information, to obtain the upmix signal representation.

摘要翻译： 配置为分解所述下混信号表示，以提供第一音频信息描述的第一组的一个或多个的对象分离器，用于提供至混信号表示在依赖下混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包括 第一音频对象类型和第二音频信息描述的第二组的第二音频对象类型的一个或多个音频对象的音频对象，在所述下混信号表示的依赖，并使用至少的对象相关参数信息的一部分 ， 配置成接收所述第二音频信息并处理在所述对象相关参数信息的依赖第二音频信息，以获得所述第二音频信息的处理的版本的音频信号处理器，以便所述音频信号解码器包括。 因此，音频信号解码器被配置为将第一音频信息与所述第二音频信息的处理版本组合的音频信号合成器的包括，以获得上混信号表示。

公开(公告)号：EP2175670A1

公开(公告)日：2010-04-14

申请号：EP09006598.8

申请日：2009-05-15

申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. ,  Koninklijke Philips Electronics N.V. ,  Dolby Sweden AB ,  Mundt, Harald ,  Terentiev, Leonid ,  Falch, Cornelia ,  Hilpert, Johannes ,  Hellmuth, Oliver ,  Plogsties, Jan ,  Villemoes, Lars ,  Breebaart, Jeroen ,  Koppens, Jeroen ,  Engdegard, Jonas

发明人： Koppens, Jeroen ,  Mundt, Harald ,  Terentiev, Leonid ,  Falch, Cornelia ,  Hilpert, Johannes ,  Hellmuth, Oliver ,  Plogsties, Jan ,  Villemoes, Lars ,  Breebaart, Jeroen ,  Engdegard, Jonas

IPC分类号： H04S3/00

CPC分类号： H04S3/004 ,  G10L19/008 ,  G10L19/20 ,  H04S1/005 ,  H04S2400/01 ,  H04S2420/01 ,  H04S2420/03

摘要： Binaural rendering a multi-channel audio signal into a binaural output signal (24) is described. The multi-channel audio signal comprises a stereo downmix signal (18) into which a plurality of audio signals are downmixed, and side information comprising a downmix information (DMG, DCLD) indicating, for each audio signal, to what extent the respective audio signal has been mixed into a first channel and a second channel of the stereo downmix signal (18), respectively, as well as object level information of the plurality of audio signals and inter-object cross correlation information describing similarities between pairs of audio signals of the plurality of audio signals. Based on a first rendering prescription, a preliminary binaural signal (54) is computed from the first and second channels of the stereo downmix signal (18). A decorrelated signal X d n , k is generated as an perceptual equivalent to a mono downmix (58) of the first and second channels of the stereo downmix signal (18) being, however, decorrelated to the mono downmix (58). Depending on a second rendering prescription P 2 1 , m , a corrective binaural signal (64) is computed from the decorrelated signal (62) and the preliminary binaural signal (54) is mixed with the corrective binaural signal (64) to obtain the binaural output signal (24).

摘要翻译： 描述将双声道音频信号双向渲染成双耳输出信号（24）。 多声道音频信号包括立体声下混合信号（18），多个音频信号被混合到其中，并且包括下混信息（DMG，DCLD）的侧信息指示对于每个音频信号，各个音频信号 分别混合到立体声下混合信号（18）的第一通道和第二通道中，以及描述多个音频信号的对象级别信息和描述对象音频信号对之间的相似性的对象间互相关信息 多个音频信号。 基于第一渲染处方，从立体声下混合信号（18）的第一和第二声道计算初步双耳信号（54）。 产生解相关信号X d n，k作为与立体声下混信号（18）的第一和第二声道的单声道下混频（58）的感知等效，然而，与单声道下混频（58）相关。 根据第二渲染处方P 2 1，m，从去相关信号（62）计算校正性双耳信号（64），并将预备双耳信号（54）与校正性双耳信号（64）混合以获得双耳 输出信号（24）。

公开(公告)号：EP2816555A1

公开(公告)日：2014-12-24

申请号：EP14180279.3

申请日：2010-04-28

申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. ,  Dolby International AB

发明人： Herre, Jürgen ,  Hölzer, Andreas ,  Terentiv, Leon ,  Falch, Cornelia ,  Purnhagen, Heiko ,  Engdegard, Jonas ,  Ridderbusch, Falko ,  Kastner, Thorsten

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 ).

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）。

公开(公告)号：EP2535892B1

公开(公告)日：2014-08-27

申请号：EP12183562.3

申请日：2010-06-23

申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.

发明人： Hellmuth, Oliver ,  Falch, Cornelia ,  Herre, Jürgen ,  Hilpert, Johannes ,  Ridderbusch, Falko ,  Terentiv, Leonid

IPC分类号： G10L19/008 ,  G10L19/20 ,  H04S7/00 ,  G10H1/36

CPC分类号： G10L19/20 ,  G10H1/361 ,  G10H2210/301 ,  G10L19/008 ,  H04S7/30 ,  H04S2400/11 ,  H04S2420/07

摘要： An audio signal decoder for providing an upmix signal representation in dependence on a downmix signal representation and an object-related parametric information comprises an object separator configured to decompose the downmix signal representation, to provide a first audio information describing a first set of one or more audio objects of a first audio object type and a second audio information describing a second set of one or more audio objects of a second audio object type, in dependence on the downmix signal representation and using at least a part of the object-related parametric information. The audio signal decoder also comprises an audio signal processor configured to receive the second audio information and to process the second audio information in dependence on the object-related parametric information, to obtain a processed version of the second audio information. The audio signal decoder also comprises an audio signal combiner configured to combine the first audio information with the processed version of the second audio information, to obtain the upmix signal representation.

公开(公告)号：EP2757559A1

公开(公告)日：2014-07-23

申请号：EP13152197.3

申请日：2013-01-22

申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. ,  Friedrich-Alexander-Universität Erlangen-Nürnberg

发明人： Kastner, Thorsten ,  Herre, Jürgen ,  Ridderbusch, Falko ,  Falch, Cornelia

IPC分类号： G10L19/008 ,  H04S3/00

CPC分类号： G10L19/008 ,  H04S2400/11 ,  H04S2420/03

摘要： An apparatus for encoding one or more audio objects to obtain an encoded signal is provided. The apparatus comprises a downmixer (110) for downmixing the one or more audio objects to obtain one or more unprocessed downmix signals. Moreover, the apparatus comprises a processing module (120) for processing the one or more unprocessed downmix signals to obtain one or more processed downmix signals. Furthermore, the apparatus comprises a signal calculator (130) for calculating one or more additional signals, wherein the signal calculator (130) is configured to calculate each of the one or more additional signals based on a difference between one of the one or more processed downmix signals and one of the one or more unprocessed downmix signals. Moreover, the apparatus comprises an object information generator (140) for generating parametric audio object information for the one or more audio objects and additional parametric information for the additional signal. Furthermore, the apparatus comprises an output interface (150) for outputting the encoded signal, the encoded signal comprising the parametric audio object information for the one or more audio objects and the additional parametric information for the one or more additional signals. Moreover, a corresponding apparatus for decoding is provided.

摘要翻译： 提供了一种用于编码一个或多个音频对象以获得经编码的信号的装置。 该设备包括用于缩混所述一个或多个音频对象，以获得一个或多个未处理的下混合信号的下混频器（110）。 更上方，该装置包括用于处理所述一个或多个未处理的下混合信号，以获得一个或一个以上处理的降混信号的处理模块（120）。 更进一步，该设备包括用于计算一个或多个附加信号，worin信号计算器（130）的信号计算器（130）被配置为计算每个基于所述一个或多个处理中的一个之间的差值的一个或多个附加信号的 下混合信号和所述一个或多个未处理的下混合信号中的一个。 更完了，用于生成用于所述一个或多个音频对象参数音频对象信息和用于附加信号的附加参数信息的对象信息生成器（140）的装置包括。 进一步，用于输出铃声输出接口（150）的所述装置包括所述编码的信号，所述编码信号包括用于所述一个或多个音频对象参数音频对象信息和用于所述一个或多个另外的信号中的附加参数信息。 更完了，提供了一种用于解码的相应设备。

公开(公告)号：EP2249334A1

公开(公告)日：2010-11-10

申请号：EP09006291.0

申请日：2009-05-08

申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.

发明人： Thiergart, Oliver ,  Falch, Cornelia ,  Kuech, Fabian ,  Del Galdo, Giovanni ,  Herre, Juergen ,  Kallinger, Markus

IPC分类号： G10L19/00 ,  G10L21/02

CPC分类号： G10L21/0272 ,  G10L19/008

摘要： An audio format transcoder (100) for transcoding an input audio signal, the input audio signal having at least two directional audio components. The audio format transcoder (100) comprising a converter (110) for converting the input audio signal into a converted signal, the converted signal having a converted signal representation and a converted signal direction of arrival. The audio format transcoder (100) further comprises a position provider (120) for providing at least two spatial positions of at least two spatial audio sources and a processor (130) for processing the converted signal representation based on the at least two spatial positions to obtain at least two separated audio source measures.

摘要翻译： 一种用于对输入音频信号进行代码转换的音频格式转码器（100），所述输入音频信号具有至少两个方向音频分量。 音频格式转码器（100）包括用于将输入音频信号转换为转换信号的转换器（110），该转换信号具有转换的信号表示和转换的信号到达方向。 音频格式转码器（100）还包括用于提供至少两个空间音频源的至少两个空间位置的位置提供器（120）和用于基于至少两个空间位置处理转换后的信号表示的处理器（130） 获取至少两个独立的音频源测量。