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1. 发明公开

EP2830333A1 Multi-channel decorrelator, multi-channel audio decoder, multi-channel audio encoder, methods and computer program using a premix of decorrelator input signals 审中-公开
标题翻译：多通道去相关器中，多通道音频译码器，一个多通道音频编码器，方法和Dekorrelatoreingangssignalen的计算机程序预混
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。

2. 发明公开

EP2830334A1 Multi-channel audio decoder, multi-channel audio encoder, methods, computer program and encoded audio representation using a decorrelation of rendered audio signals 审中-公开
标题翻译：多通道音频译码器，一个多通道音频编码器，方法，计算机程序和经编码的音频表示使用解相关呈现的音频信号
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。

3. 发明公开

EP2757559A1 Apparatus and method for spatial audio object coding employing hidden objects for signal mixture manipulation 审中-公开
标题翻译：设备和方法，用于使用隐对象Signalmixmanipulierung空间音频对象编码
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。

4. 发明公开

EP2830050A1 Apparatus and method for enhanced spatial audio object coding 审中-公开
标题翻译： Vorrichtung und Verfahren zur verb desserten Codierung einesräumlichenAudioobjekts
公开(公告)号：EP2830050A1
公开(公告)日：2015-01-28
申请号：EP13189290.3
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, Sasacha , Fuchs, Harald , Hellmuth, Oliver , Herre, Jürgen , Murtaza, Adrian , Paulus, Jouni , Ridderbusch, Falko , Terentiv, Leon
IPC分类号： G10L19/008 , H04S3/00
CPC分类号： H04S3/02 , G10L19/008 , H04S3/00 , H04S3/006 , H04S3/008 , H04S7/305 , H04S2400/01 , H04S2400/03 , H04S2400/11 , H04S2400/13 , H04S2420/03
摘要： An apparatus for generating one or more audio output channels is provided. The apparatus comprises a parameter processor (110) for calculating mixing information and a downmix processor (120) for generating the one or more audio output channels. The downmix processor (120) is configured to receive an audio transport signal comprising one or more audio transport channels. One or more audio channel signals are mixed within the audio transport signal, and one or more audio object signals are mixed within the transport signal, and wherein the number of the one or more audio transport channels is smaller than the number of the one or more audio channel signals plus the number of the one or more audio object signals. The parameter processor (110) is configured to receive downmix information indicating information on how the one or more audio channel signals and the one or more audio object signals are mixed within the one or more audio transport channels, and wherein the parameter processor (110) is configured to receive covariance information. Moreover, the parameter processor (110) is configured to calculate the mixing information depending on the downmix information and depending on the covariance information. The downmix processor (120) is configured to generate the one or more audio output channels from the audio transport signal depending on the mixing information. The information indicates a level difference information for at least one of the one or more audio channel signals and further indicates a level difference information for at least one of the one or more audio object signals. However, the covariance information does not indicate correlation information for any pair of one of the one or more audio channel signals and one of the one or more audio object signals.
摘要翻译：提供了一种用于产生一个或多个音频输出通道的装置。该装置包括用于计算混合信息的参数处理器（110）和用于生成一个或多个音频输出通道的下混处理器（120）。下混合处理器（120）被配置为接收包括一个或多个音频传输信道的音频传输信号。一个或多个音频信道信号在音频传输信号内混合，并且一个或多个音频对象信号在传输信号内混合，并且其中一个或多个音频传输信道的数量小于一个或多个音频通道信号加上一个或多个音频对象信号的数量。参数处理器（110）被配置为接收指示关于一个或多个音频信道信号和一个或多个音频对象信号如何在一个或多个音频传输信道内混合的信息的下混信息，并且其中参数处理器（110）被配置为接收协方差信息。此外，参数处理器（110）被配置为根据缩混信息并根据协方差信息来计算混合信息。下混合处理器（120）被配置为根据混合信息从音频传输信号生成一个或多个音频输出信道。该信息指示一个或多个音频信道信号中的至少一个音频信道信号的电平差信息，并进一步指示一个或多个音频对象信号中的至少一个音频对象信号的电平差信息。然而，协方差信息并不表示一个或多个音频信道信号中的任何一个与一个或多个音频对象信号之一的相关信息。

5. 发明公开

EP2830048A1 Apparatus and method for realizing a SAOC downmix of 3D audio content 审中-公开
标题翻译： Vorrichtung und Verfahren zur Realisierung eines SAOC-Downmix von 3D-Audioinhalt
公开(公告)号：EP2830048A1
公开(公告)日：2015-01-28
申请号：EP13189281.2
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 , Ridderbusch, Falko , Paulus, Jouni , Terentiv, Leon
IPC分类号： G10L19/008 , H04S3/00
CPC分类号： H04S3/02 , G10L19/008 , H04S3/00 , H04S3/006 , H04S3/008 , H04S7/305 , H04S2400/01 , H04S2400/03 , H04S2400/11 , H04S2400/13 , H04S2420/03
摘要： An apparatus for generating one or more audio output channels is provided. The apparatus comprises a parameter processor (110) for calculating output channel mixing information and a downmix processor (120) for generating the one or more audio output channels. The downmix processor (120) is configured to receive an audio transport signal comprising one or more audio transport channels, wherein two or more audio object signals are mixed within the audio transport signal, and wherein the number of the one or more audio transport channels is smaller than the number of the two or more audio object signals. The audio transport signal depends on a first mixing rule and on a second mixing rule. The first mixing rule indicates how to mix the two or more audio object signals to obtain a plurality of premixed channels. Moreover, the second mixing rule indicates how to mix the plurality of premixed channels to obtain the one or more audio transport channels of the audio transport signal. The parameter processor (110) is configured to receive information on the second mixing rule, wherein the information on the second mixing rule indicates how to mix the plurality of premixed signals such that the one or more audio transport channels are obtained. Moreover, the parameter processor (110) is configured to calculate the output channel mixing information depending on an audio objects number indicating the number of the two or more audio object signals, depending on a premixed channels number indicating the number of the plurality of premixed channels, and depending on the information on the second mixing rule. The downmix processor (120) is configured to generate the one or more audio output channels from the audio transport signal depending on the output channel mixing information.
摘要翻译：提供了一种用于产生一个或多个音频输出通道的装置。该装置包括用于计算输出通道混合信息的参数处理器（110）和用于产生一个或多个音频输出通道的下混处理器（120）。下混合处理器（120）被配置为接收包括一个或多个音频传输信道的音频传输信号，其中在音频传输信号内混合两个或多个音频对象信号，并且其中一个或多个音频传输信道的数量为小于两个或更多个音频对象信号的数量。音频传输信号取决于第一混合规则和第二混合规则。第一混合规则指示如何混合两个或多个音频对象信号以获得多个预混频道。此外，第二混合规则指示如何混合多个预混频道以获得音频传输信号的一个或多个音频传输信道。参数处理器（110）被配置为接收关于第二混合规则的信息，其中关于第二混合规则的信息指示如何混合多个预混合信号，使得获得一个或多个音频传输信道。此外，参数处理器（110）被配置为根据指示多个预混频道的数量的预设频道号码，根据指示两个或多个音频对象信号的数量的音频对象号来计算输出频道混合信息，并且取决于关于第二混合规则的信息。下混合处理器（120）被配置为根据输出信道混合信息从音频传输信号生成一个或多个音频输出信道。

6. 发明公开

EP3419315A1 MULTI-CHANNEL DECORRELATOR, MULTI-CHANNEL AUDIO ENCODER, METHOD AND COMPUTER PROGRAM USING A PREMIX OF DECORRELATOR INPUT SIGNALS 有权转让
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.

7. 发明授权

EP2151822B8 Apparatus and method for processing an audio signal for speech enhancement using a feature extraction 有权
公开(公告)号：EP2151822B8
公开(公告)日：2018-10-24
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.

8. 发明授权

EP2151822B1 Apparatus and method for processing and audio signal for speech enhancement using a feature extraction 有权
标题翻译：用于使用特征提取进行语音增强的处理和音频信号的设备和方法
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.

9. 发明公开

EP2535892A1 Audio signal decoder, method for decoding an audio signal and computer program using cascaded audio object processing stages 有权
标题翻译： Tonsignaldekodierer，方法用于解码音频信号，和计算机程序与级联Tonobjektverarbeitungsphasen
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。

10. 发明授权

EP2816555B1 Audio signal encoder, audio bitstream, method and computer program using an object-related parametric information 有权转让
标题翻译：音频信号编码器，音频比特流，使用对象相关参数信息的方法和计算机程序
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 ).

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