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1. 发明申请

WO2010149700A1 AUDIO SIGNAL DECODER, METHOD FOR DECODING AN AUDIO SIGNAL AND COMPUTER PROGRAM USING CASCADED AUDIO OBJECT PROCESSING STAGES 审中-公开
标题翻译：音频信号解码器，使用CASCADED音频对象处理阶段解码音频信号的方法和计算机程序
公开(公告)号：WO2010149700A1
公开(公告)日：2010-12-29
申请号：PCT/EP2010/058906
申请日：2010-06-23
申请人： FRAUNHOFER GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , HELLMUTH, Oliver , FALCH, Cornelia , HERRE, Jürgen , HILPERT, Johannes , RIDDERBUSCH, Falko , TERENTIEV, Leonid
发明人： HELLMUTH, Oliver , FALCH, Cornelia , HERRE, Jürgen , HILPERT, Johannes , RIDDERBUSCH, Falko , TERENTIEV, 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：音频信号解码器，用于根据降混信号表示和对象相关的参数信息提供上混合信号表示，包括被配置成分解下混合信号表示的对象分离器，以提供描述第一组一个或多个第一音频对象类型的音频对象和描述第二音频对象类型的一个或多个音频对象的第二组的第二音频信息，其依赖于下混合信号表示，并且使用至少一部分与对象相关的参数信息。音频信号解码器还包括音频信号处理器，该音频信号处理器被配置为接收第二音频信息并根据对象相关参数信息处理第二音频信息，以获得第二音频信息的处理版本。音频信号解码器还包括被配置为组合第一音频信息和第二音频信息的处理版本的音频信号组合器，以获得上混合信号表示。

2. 发明申请

WO2009039897A1 APPARATUS AND METHOD FOR EXTRACTING AN AMBIENT SIGNAL IN AN APPARATUS AND METHOD FOR OBTAINING WEIGHTING COEFFICIENTS FOR EXTRACTING AN AMBIENT SIGNAL AND COMPUTER PROGRAM 审中-公开
标题翻译：用于提取装置的环境信号的装置和方法以及用于获取提取环境信号和计算机程序的加权系数的方法
公开(公告)号：WO2009039897A1
公开(公告)日：2009-04-02
申请号：PCT/EP2008/002385
申请日：2008-03-26
申请人： FRAUNHOFER - GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , UHLE, Christian , HERRE, Jürgen , GEYERSBERGER, Stefan , RIDDERBUSCH, Falko , WALTER, Andreas , MOSER, Oliver
发明人： UHLE, Christian , HERRE, Jürgen , GEYERSBERGER, Stefan , RIDDERBUSCH, Falko , WALTER, Andreas , MOSER, Oliver
IPC分类号： H04S5/00
CPC分类号： H04R5/04
摘要： An apparatus for extracting an ambient signal from an input audio signal comprises a gain-value determinator configured to determine a sequence of time-varying ambient signal gain values for a given frequency band of the time-frequency distribution of the input audio signal in dependence on the input audio signal. The apparatus comprises a weighter configured to weight one of the sub-band signals representing the given frequency band of the time-frequency-domain representation with the time-varying gain values, to obtain a weighted sub-band signal. The gain-value determinator is configured to obtain one or more quantitative feature-values describing one or more features of the input audio signal and to provide the gain-value as a function of the one or more quantitative feature values such that the gain values are quantitatively dependent on the quantitative values. The gain value determinator is configured to determine the gain values such that ambience components are emphasized over non-ambience components in the weighted sub-band signal.
摘要翻译：一种用于从输入音频信号中提取环境信号的装置包括：增益值确定器，被配置为根据输入音频信号的时间 - 频率分布的给定频带来确定时变环境信号增益值的序列，依赖于输入音频信号。该装置包括被配置为将表示时间 - 频域表示的给定频带的子带信号中的一个与时变增益值加权的权重器，以获得加权子带信号。增益值确定器被配置为获得描述输入音频信号的一个或多个特征的一个或多个定量特征值，并且将增益值提供为一个或多个定量特征值的函数，使得增益值为定量依赖于定量值。增益值确定器被配置为确定增益值，使得氛围分量在加权子带信号中的非环境分量上被强调。

3. 发明申请

WO2012104119A1 SEMANTIC AUDIO TRACK MIXER 审中-公开
标题翻译：语音音轨混音器
公开(公告)号：WO2012104119A1
公开(公告)日：2012-08-09
申请号：PCT/EP2012/050365
申请日：2012-01-11
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , FRIEDRICH-ALEXANDER-UNIVERSITÄT ERLANGEN NÜRNBERG , UHLE, Christian , HERRE, Jürgen , POPP, Harald , RIDDERBUSCH, Falko
发明人： UHLE, Christian , HERRE, Jürgen , POPP, Harald , RIDDERBUSCH, Falko
IPC分类号： G10L15/26 , H04H60/04 , G10L15/22 , G06F9/44
CPC分类号： H04R3/00 , G10L15/22 , H04H60/04
摘要： An audio mixer for mixing a plurality of audio tracks to a mixture signal comprises a semantic command interpreter (30; 35) for receiving a semantic mixing command and for deriving a plurality of mixing parameters for the plurality of audio tracks from the semantic mixing command; an audio track processor (70; 75) for processing the plurality of audio tracks in accordance with the plurality of mixing parameters; and an audio track combiner (76) for combining the plurality of audio tracks processed by the audio track processor into the mixture signal (MS). A corresponding method comprises: receiving a semantic mixing command; deriving a plurality of mixing parameters for the plurality of audio tracks from the semantic mixing command; processing the plurality of audio tracks in accordance with the plurality of mixing parameters; and combining the plurality of audio tracks resulting from the processing of the plurality of audio tracks to form the mixture signal.
摘要翻译：用于将多个音频轨道混合到混合信号的音频混合器包括语义命令解释器（30; 35），用于接收语义混合命令并从语义混合命令中导出多个音频轨道的多个混合参数; 用于根据所述多个混合参数来处理所述多个音频轨道的音轨处理器（70; 75）以及用于将由音频轨道处理器处理的多个音频轨道组合成混合信号（MS）的音轨组合器（76）。相应的方法包括：接收语义混合命令; 从所述语义混合命令导出所述多个音频轨道的多个混合参数; 根据多个混合参数处理多个音轨; 以及组合由多个音频轨道的处理产生的多个音频轨道以形成混合信号。

4. 发明申请

WO2015010999A1 APPARATUS AND METHOD FOR REALIZING A SAOC DOWNMIX OF 3D AUDIO CONTENT 审中-公开
标题翻译：用于实现3D音频内容的下降的装置和方法
公开(公告)号：WO2015010999A1
公开(公告)日：2015-01-29
申请号：PCT/EP2014/065290
申请日：2014-07-16
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 , TERENTIV, Leon , PAULUS, Jouni
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更多个音频对象信号，并且其中一个或多个音频传输信道的数目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，根据指示两个或多个音频对象信号的数量的音频对象号码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产生一个或多个音频输出信道。

5. 发明申请

WO2014023477A1 APPARATUS AND METHODS FOR ADAPTING AUDIO INFORMATION IN SPATIAL AUDIO OBJECT CODING 审中-公开
标题翻译：适用于空间音频对象编码的音频信息的装置和方法
公开(公告)号：WO2014023477A1
公开(公告)日：2014-02-13
申请号：PCT/EP2013/063703
申请日：2013-06-28
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , FRIEDRICH-ALEXANDER-UNIVERSITAET ERLANGEN-NUERNBERG
发明人： KASTNER, Thorsten , HERRE, Jürgen , TERENTIV, Leon , HELLMUTH, Oliver , PAULUS, Jouni , RIDDERBUSCH, Falko
IPC分类号： G10L19/008 , G10L19/16
CPC分类号： G10L19/008 , G10L19/173 , H04S2420/03
摘要： An apparatus for adapting input audio information, encoding one or more audio objects, to obtain adapted audio information is provided. The input audio information comprises two or more input audio downmix channels and further comprises input parametric side information. The adapted audio information comprises one or more adapted audio downmix channels and further comprises adapted parametric side information. The apparatus comprises a downmix signal modifier (110) for adapting, depending on adaptation information, the two or more input audio downmix channels to obtain the one or more adapted audio downmix channels. Moreover, the apparatus comprises a parametric side information adapter (120) for adapting, depending on the adaptation information, the input parametric side information to obtain the adapted parametric side information.
摘要翻译：提供了一种用于调整输入音频信息，编码一个或多个音频对象以获得适配音频信息的装置。输入音频信息包括两个或多个输入音频下混频道，并且还包括输入参数侧信息。适应的音频信息包括一个或多个适应的音频下混通道，并且还包括适配的参数侧信息。该装置包括下混合信号修改器（110），用于根据自适应信息适应两个或多个输入音频下混通道以获得一个或多个适配音频下混通道。此外，该装置包括参数侧信息适配器（120），用于根据自适应信息调整输入参数侧信息以获得适配的参数侧信息。

6. 发明申请

WO2015011054A1 APPARATUS AND METHOD FOR DECODING AN ENCODED AUDIO SIGNAL TO OBTAIN MODIFIED OUTPUT SIGNALS 审中-公开
标题翻译：用于解码编码音频信号以获取修改的输出信号的装置和方法
公开(公告)号：WO2015011054A1
公开(公告)日：2015-01-29
申请号：PCT/EP2014/065533
申请日：2014-07-18
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
发明人： PAULUS, Jouni , FUCHS, Harald , HELLMUTH, Oliver , MURTAZA, Adrian , RIDDERBUSCH, Falko , TERENTIV, Leon
IPC分类号： G10L19/008
CPC分类号： G10L19/008 , H04S3/02 , H04S2400/01 , H04S2400/03 , H04S2420/03
摘要： An apparatus for decoding an encoded audio signal (100) to obtain modified output signals (160), comprises an input interface (110) for receiving a transmitted downmix signal (112) and parametric data (114) relating to audio objects included in the transmitted downmix signal (112), the downmix signal being different from an encoder downmix signal, to which the parametric data is related; a downmix modifier (116) for modifying the transmitted downmix signal using a downmix modification function, wherein the downmix modification is performed in such a way that a modified downmix signal is identical to the encoder downmix signal or is more similar to the encoder downmix signal compared to the transmitted downmix signal (112); an object renderer (118) for rendering the audio objects using the modified downmix signal and the parametric data to obtain output signals; and an output signal modifier (120) for modifying the output signals using an output signal modification function, wherein the output signal modification function is such that a manipulation operation applied to the encoded downmix signal to obtain the transmitted downmix signal (112) is at least partly applied to the output signals to obtain the modified output signals (160).
摘要翻译：一种用于对编码音频信号（100）进行解码以获得修改的输出信号（160）的装置，包括用于接收传输的下混信号（112）的输入接口（110）和与发送的包含的音频对象有关的音频对象的参数数据（114）下混合信号（112），下混合信号与参数数据相关的编码器下混合信号不同; 下混合修改器（116），用于使用下混修改函数来修改发送的下混信号，其中下混修改以使得修改的下混信号与编码器下混合信号相同或更类似于编码器下混合信号的方式来执行到所发送的下混信号（112）; 用于使用修改的下混合信号和参数数据渲染音频对象以获得输出信号的对象渲染器（118）; 以及输出信号修正器（120），用于使用输出信号修改功能修改输出信号，其中输出信号修改功能使得施加到编码的下混合信号以获得发送的下混合信号（112）的操纵操作至少为部分地应用于输出信号以获得修改的输出信号（160）。

7. 发明申请

WO2015011024A1 APPARATUS AND METHOD FOR ENHANCED SPATIAL AUDIO OBJECT CODING 审中-公开
标题翻译：用于增强空间音频对象编码的装置和方法
公开(公告)号：WO2015011024A1
公开(公告)日：2015-01-29
申请号：PCT/EP2014/065427
申请日：2014-07-17
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , FRIEDRICH-ALEXANDER-UNIVERSITÄT ERLANGEN-NÜRNBERG
发明人： HERRE, Jürgen , MURTAZA, Adrian , PAULUS, Jouni , DISCH, Sascha , FUCHS, Harald , HELLMUTH, Oliver , 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 audio 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 covariance 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被混合在音频传输信号内，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更多的音频信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混合在一个或多个音频传输信道内的信息的下混信息，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产生一个或多个音频输出声道。协方差信息指示一个或多个音频信道信号中的至少一个的电平差信息，并且还指示一个或多个音频对象信号中的至少一个的电平差信息。然而，协方差信息不表示一个或多个音频信道信号中的任何一个对和一个或多个音频对象信号中的一个的相关信息。

8. 发明申请

WO2014114599A1 APPARATUS AND METHOD FOR SPATIAL AUDIO OBJECT CODING EMPLOYING HIDDEN OBJECTS FOR SIGNAL MIXTURE MANIPULATION 审中-公开
标题翻译：用于信号混合操作的隐藏对象的空间音频对象编码的装置和方法
公开(公告)号：WO2014114599A1
公开(公告)日：2014-07-31
申请号：PCT/EP2014/051046
申请日：2014-01-20
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 , CORNELIA 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编码信号的装置。该装置包括用于将一个或多个音频对象下混合以获得一个或多个未处理的下混合信号的降混器（110）。此外，该装置包括处理模块（120），用于处理一个或多个未处理的下混合信号以获得一个或多个处理的下混合信号。此外，该装置包括用于计算一个或多个附加信号的信号计算器（130），其中信号计算器（130）被配置为基于一个或多个处理过的下混合信号和一个或多个未处理的下混合信号中的一个。此外，该装置包括用于产生用于一个或多个音频对象的参数音频对象信息的对象信息生成器（140）和用于附加信号的附加参数信息。此外，该装置包括用于输出编码信号的输出接口（150），编码信号包括一个或多个音频对象的参数音频对象信息和一个或多个附加信号的附加参数信息。此外，提供了一种相应的解码装置。

9. 发明申请

WO2015078956A1 DECODER, ENCODER AND METHOD FOR INFORMED LOUDNESS ESTIMATION IN OBJECT-BASED AUDIO CODING SYSTEMS 审中-公开
标题翻译：基于对象的音频编码系统的解码器，编码器和信息通量估计方法
公开(公告)号：WO2015078956A1
公开(公告)日：2015-06-04
申请号：PCT/EP2014/075787
申请日：2014-11-27
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
发明人： PAULUS, Jouni , DISCH, Sascha , FUCHS, Harald , GRILL, Bernhard , HELLMUTH, Oliver , MURTAZA, Adrian , RIDDERBUSCH, Falko , TERENTIV, Leon
IPC分类号： G10L19/008
CPC分类号： G10L19/008 , G10L19/265 , H03G3/20
摘要： A decoder for generating an audio output signal comprising one or more audio output channels is provided. The decoder comprises a receiving interface (110) for receiving an audio input signal comprising a plurality of audio object signals, for receiving loudness information on the audio object signals, and for receiving rendering information indicating whether one or more of the audio object signals shall be amplified or attenuated. Moreover, the decoder comprises a signal processor (120) for generating the one or more audio output channels of the audio output signal. The signal processor (120) is configured to determine a loudness compensation value depending on the loudness information and depending on the rendering information. Furthermore, the signal processor (120) is configured to generate the one or more audio output channels of the audio output signal from the audio input signal depending on the rendering information and depending on the loudness compensation value. Moreover, an encoder is provided.
摘要翻译：提供了一种用于产生包括一个或多个音频输出通道的音频输出信号的解码器。解码器包括接收接口（110），用于接收包括多个音频对象信号的音频输入信号，用于接收关于音频对象信号的响度信息，并且用于接收指示音频对象信号中的一个或多个是否为放大或减弱。此外，解码器包括用于产生音频输出信号的一个或多个音频输出声道的信号处理器（120）。信号处理器（120）被配置为根据响度信息和取决于渲染信息来确定响度补偿值。此外，信号处理器（120）被配置为根据呈现信息并根据响度补偿值从音频输入信号生成音频输出信号的一个或多个音频输出声道。此外，提供了编码器。

10. 发明申请

WO2015011015A1 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：多通道音频解码器，多声道音频编码器，方法，计算机程序和编码音频表示，使用渲染音频信号进行装饰
公开(公告)号：WO2015011015A1
公开(公告)日：2015-01-29
申请号：PCT/EP2014/065397
申请日：2014-07-17
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： G10L19/008 , H04S3/008 , H04S3/02 , 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：用于基于经编码的表示来提供至少两个输出音频信号的多声道音频解码器被配置为根据编码的表示来渲染基于一个或多个渲染的多个解码的音频信号参数，以获得多个呈现的音频信号。多声道音频解码器被配置为从所渲染的音频信号中导出一个或多个去相关音频信号，并且将所呈现的音频信号或其缩放版本与一个或多个去相关的音频信号组合以获得输出音频信号。多声道音频编码器提供解相关方法参数来控制音频解码器。

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