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：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：EP2830333A1

公开(公告)日：2015-01-28

申请号：EP13189339.8

申请日：2013-10-18

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

发明人： Disch, Sascha ,  Fuchs, Harald ,  Hellmuth, Oliver ,  Herre, Jürgen ,  Murtaza, Adrian ,  Paulus, Jouni ,  Ridderbusch, Falko ,  Terentiv, Leon

IPC分类号： H04S3/00 ,  G10L19/008

CPC分类号： H04S3/02 ,  G10L19/008 ,  G10L19/032 ,  G10L19/20 ,  G10L19/22 ,  G10L19/265 ,  H04S3/008 ,  H04S2400/03 ,  H04S2400/11 ,  H04S2420/03

摘要： A multi-channel decorrelator for providing a plurality of decorrelated signals on the basis of a plurality of decorrelator input signals is configured to premix a first set of N decorrelator input signals into a second set of K decorrelator input signals, wherein K K'. The multi-channel decorrelator can be used in a multi-channel audio decoder. A multi-channel audio encoder provides complexity control information for the multi-channel decorrelator.

摘要翻译： 对于去相关器的输入信号的多个基础上提供去相关信号的多个A多通道去相关器被配置为预混合的第一组N个去相关器输入信号的成第二集合K解相关器输入信号的，worinķ K”。 多通道去相关器可以在多通道音频译码器一起使用。 一种多通道音频编码器提供对多通道去相关器的复杂性的控制信息。

公开(公告)号：EP2151822B1

公开(公告)日：2018-04-25

申请号：EP08017124.2

申请日：2008-09-29

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

发明人： Uhle, Christian ,  Hellmuth, Oliver ,  Grill, Bernhard ,  Ridderbusch, Falko

IPC分类号： G10L21/0208 ,  G10L25/30 ,  G10L21/0216

CPC分类号： G10L21/0208 ,  G10L21/0216 ,  G10L25/30

摘要： An apparatus for processing an audio signal to obtain control information for a speech enhancement filter comprises a feature extractor for extracting at least one feature per frequency band of a plurality of frequency bands of a short-time spectral representation of a plurality of short-time spectral representations, where the at least one feature represents a spectral shape of the short-time spectral representation in the frequency band. The apparatus additionally comprises a feature combiner for combining the at least one feature for each frequency band using combination parameters to obtain the control information for the speech enhancement filter for a time portion of the audio signal. The feature combiner can use a neural network regression method, which is based on combination parameters determined in a training phase for the neural network.

公开(公告)号：EP2830334A1

公开(公告)日：2015-01-28

申请号：EP13189345.5

申请日：2013-10-18

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

发明人： Disch, Sascha ,  Fuchs, Harald ,  Hellmuth, Oliver ,  Herre, Jürgen ,  Murtaza, Adrian ,  Paulus, Jouni ,  Ridderbusch, Falko ,  Terentiv, Leon

IPC分类号： H04S3/00 ,  G10L19/008

CPC分类号： H04S3/02 ,  G10L19/008 ,  G10L19/032 ,  G10L19/20 ,  G10L19/22 ,  G10L19/265 ,  H04S3/008 ,  H04S2400/03 ,  H04S2400/11 ,  H04S2420/03

摘要： A multi-channel audio decoder for providing at least two output audio signals on the basis of an encoded representation is configured to render a plurality of decoded audio signals, which are obtained on the basis of the encoded representation, in dependence on one or more rendering parameters, to obtain a plurality of rendered audio signals. The multichannel audio decoder is configured to derive one or more decorrelated audio signals from the rendered audio signals, and to combine the rendered audio signals, or a scaled version thereof, with the one or more decorrelated audio signals, to obtain the output audio signals. A multi-channel audio encoder provides a decorrelation method parameter to control an audio decoder.

摘要翻译： 用于编码表示的基础上，提供至少两个输出音频信号的多声道音频解码器被配置以使解码的音频信号，它们是在依赖一种或多种呈现编码表示的基础上获得的多元 参数，以获得再现的音频信号的复数。 该多通道音频解码器被配置为从所呈现的音频信号的一个或多个解相关的音频信号，并且向呈现的音频信号，或缩放版本及其结合，与所述一个或更多个解相关的音频信号，以获得输出音频信号。 一种多通道音频编码器提供去相关方法的参数来控制音频解码器。

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：EP3419314A1

公开(公告)日：2018-12-26

申请号：EP18178664.1

申请日：2014-07-17

申请人： FRAUNHOFER-GESELLSCHAFT zur Förderung der angewandten Forschung e.V.

发明人： Disch, Sascha ,  Fuchs, Harald ,  Hellmuth, Oliver ,  Herre, Jürgen ,  Murtaza, Adrian ,  Paulus, Jouni ,  Ridderbusch, Falko ,  Terentiv, Leon

IPC分类号： H04S3/00 ,  G10L19/008

CPC分类号： H04S3/02 ,  G10L19/008 ,  G10L19/032 ,  G10L19/20 ,  G10L19/22 ,  G10L19/265 ,  H04S3/008 ,  H04S2400/03 ,  H04S2400/11 ,  H04S2420/03

摘要： A multi-channel decorrelator for providing a plurality of decorrelated signals on the basis of a plurality of decorrelator input signals is configured to premix a first set of N decorrelator input signals into a second set of K decorrelator input signals, wherein K K'. The multi-channel decorrelator can be used in a multi-channel audio decoder. A multi-channel audio encoder provides complexity control information for the multi-channel decorrelator.

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：EP2151822A1

公开(公告)日：2010-02-10

申请号：EP08017124.2

申请日：2008-09-29

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

发明人： Uhle, Christian, Dr. ,  Hellmuth, Oliver ,  Grill, Bernhard ,  Ridderbusch, Falko

IPC分类号： G10L21/02

CPC分类号： G10L21/0208 ,  G10L21/0216 ,  G10L25/30

摘要： An apparatus for processing an audio signal to obtain control information for a speech enhancement filter comprises a feature extractor for extracting at least one feature per frequency band of a plurality of frequency bands of a short-time spectral representation of a plurality of short-time spectral representations, where the at least one feature represents a spectral shape of the short-time spectral representation in the frequency band. The apparatus additionally comprises a feature combiner for combining the at least one feature for each frequency band using combination parameters to obtain the control information for the speech enhancement filter for a time portion of the audio signal. The feature combiner can use a neural network regression method, which is based on combination parameters determined in a training phase for the neural network.

摘要翻译： 用于音频信号以获得用于语音增强滤波器的控制信息的处理的装置包括特征提取器，用于每个频带提取短时频谱的多个短时谱表示的频带中的多个至少一个特征 表示，其中该至少一个特征darstellt短时谱表示的谱形的频率带。 该装置另外还包括一个特征合并器用于组合所述至少一个特征对每个频带-使用组合参数，以获得用于所述音频信号的时间部分的语音增强滤波器的控制信息。 所述特征合并器可以使用神经网络回归方法，所有这是基于在一个锻炼阶段开采神经网络组合参数确定的。

公开(公告)号：EP3419315A1

公开(公告)日：2018-12-26

申请号：EP18178666.6

申请日：2014-07-17

申请人： FRAUNHOFER-GESELLSCHAFT zur Förderung der angewandten Forschung e.V.

发明人： Disch, Sascha ,  Fuchs, Harald ,  Hellmuth, Oliver ,  Herre, Jürgen ,  Murtaza, Adrian ,  Paulus, Jouni ,  Ridderbusch, Falko ,  Terentiv, Leon

IPC分类号： H04S3/00 ,  G10L19/008

CPC分类号： H04S3/02 ,  G10L19/008 ,  G10L19/032 ,  G10L19/20 ,  G10L19/22 ,  G10L19/265 ,  H04S3/008 ,  H04S2400/03 ,  H04S2400/11 ,  H04S2420/03

摘要： A multi-channel decorrelator for providing a plurality of decorrelated signals on the basis of a plurality of decorrelator input signals is configured to premix a first set of N decorrelator input signals into a second set of K decorrelator input signals, wherein K K'. The multi-channel decorrelator can be used in a multi-channel audio decoder. A multi-channel audio encoder provides complexity control information for the multi-channel decorrelator.