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    AN APPARATUS FOR ENCODING AN AUDIO SIGNAL HAVING A PLURALITY OF CHANNELS
    21.
    发明公开
    AN APPARATUS FOR ENCODING AN AUDIO SIGNAL HAVING A PLURALITY OF CHANNELS 审中-公开
    VORRICHTUNG ZUR CODIERUNG EINES TONSIGNALS MIT MEHRERENKANÄLEN

    公开(公告)号：EP3144932A1

    公开(公告)日：2017-03-22

    申请号：EP16196394.7

    申请日：2011-07-06

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

    发明人： Kuntz, Achim ,  Disch, Sascha ,  Herre, Jürgen ,  Küch, Fabian ,  Hilpert, Johannes

    IPC分类号： G10L19/00 ,  G10L19/008 ,  G10L19/025

    CPC分类号： G10L19/0017 ,  G10L19/008 ,  G10L19/025

    摘要： An apparatus for encoding an audio signal having a plurality of channels is provided. The apparatus comprises a downmixer (1010) for downmixing the plurality of channels to obtain a downmix signal. Moreover, the apparatus comprises a residual signal calculator (1020) adapted for calculating a residual signal. Furthermore, the apparatus comprises a phase information calculator (1030) adapted for calculating information on a phase difference between the downmix and the residual signal to obtain phase information. Moreover, the apparatus comprises an output generator (1040) for outputting the phase information.

    摘要翻译： 提供了一种用于对具有多个通道的音频信号进行编码的装置。 该装置包括用于将多个通道下混合以获得降混信号的降混器（1010）。 此外，该装置包括适于计算残差信号的残余信号计算器（1020）。 此外，该装置包括相位信息计算器（1030），适用于计算下混和残留信号之间的相位差的信息，以获得相位信息。 此外，该装置包括用于输出相位信息的输出发生器（1040）。

    Audio encoder and bandwidth extension decoder
    22.
    发明公开
    Audio encoder and bandwidth extension decoder 有权
    AUDIOCODIERER UND BANDBREITENERWEITERUNGSDECODIERER

    公开(公告)号：EP2945159A1

    公开(公告)日：2015-11-18

    申请号：EP15167199.7

    申请日：2009-12-11

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

    发明人： Nagel, Frederik ,  Fuchs, Guillaume ,  Disch, Sascha ,  Herre, Jürgen ,  Griebel, Christian

    IPC分类号： G10L21/038 ,  G10L19/00 ,  G10L19/24

    CPC分类号： G10L19/265 ,  G10L19/00 ,  G10L19/24 ,  G10L21/038

    摘要： An audio encoder for providing an output signal using an input audio signal comprises a patch generator, a comparator and an output interface. The patch generator generates at least one bandwidth extension high-frequency signal, wherein a bandwidth extension high-frequency signal comprises a high-frequency band. The high-frequency band of the bandwidth extension high-frequency signal is based on a low frequency band of the input audio signal. A comparator calculates a plurality of comparison parameters. A comparison parameter is calculated based on a comparison of the input audio signal and a generated bandwidth extension high-frequency signal. Each comparison parameter of the plurality of comparison parameters is calculated based on a different offset frequency between the input audio signal and a generated bandwidth extension high-frequency signal. Further, the comparator determines a comparison parameter from the plurality of comparison parameters, wherein the determined comparison parameter fulfills a predefined criterion.

    摘要翻译： 用于使用输入音频信号提供输出信号的音频编码器包括片生成器，比较器和输出接口。 贴片发生器产生至少一个带宽扩展高频信号，其中带宽扩展高频信号包括高频带。 带宽扩展高频信号的高频带基于输入音频信号的低频带。 比较器计算多个比较参数。 基于输入音频信号和产生的带宽扩展高频信号的比较来计算比较参数。 基于输入音频信号和生成的带宽扩展高频信号之间的不同偏移频率来计算多个比较参数的每个比较参数。 此外，比较器确定来自多个比较参数的比较参数，其中确定的比较参数满足预定标准。

    Apparatus, method, and computer program for mapping first and second input channels to at least one output channel
    23.
    发明公开
    Apparatus, method, and computer program for mapping first and second input channels to at least one output channel 审中-公开
    的装置，方法和计算机程序用于在第一和第二输入信道到至少一个输出信道的分配

    公开(公告)号：EP2830335A3

    公开(公告)日：2015-02-25

    申请号：EP13189243.2

    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： Herre, Jürgen ,  Küch, Fabian ,  Kuntz, Achim ,  Kratschmer, Michael ,  Faller, Christoph

    IPC分类号： H04S7/00 ,  G10L19/008

    CPC分类号： H04S7/303 ,  G10L19/008 ,  H04R5/02 ,  H04S3/002 ,  H04S3/02 ,  H04S7/30 ,  H04S7/302 ,  H04S7/305 ,  H04S7/308 ,  H04S2400/01 ,  H04S2400/03 ,  H04S2420/03

    摘要： An apparatus for mapping a first input channel and a second input channel of an input channel configuration to at least one output channel of an output channel configuration, wherein each input channel and each output channel has a direction in which an associated loudspeaker is located relative to a central listener position, wherein the apparatus is configured to map the first input channel to a first output channel of the output channel configuration. The apparatus is further configured to at least one of a) map the second input channel to the first output channel, comprising processing the second input channel by applying at least one of an equalization filter and a decorrelation filter to the second input channel, and b) despite of the fact that an angle deviation between a direction of the second input channel and a direction of the first output channel is less than an angle deviation between a direction of the second input channel and the second output channel and/or is less than an angle deviation between the direction of the second input channel and the direction of the third output channel, map the second input channel to the second and third output channels by panning between the second and third output channels.

    摘要翻译： 用于映射的第一输入通道和输入通道配置中的输出信道配置的至少一个输出信道的第二输入信道，worin各输入通道和各输出信道的装置，具有在其中相关联的扬声器位于相对于一个方向 中央听众位置，worin所述装置被配置为将所述第一输入信道映射到所述输出信道配置的第一输出通道。 该装置进一步被配置为的至少一种）映射第二输入通道到所述第一输出通道，包括通过施加均衡滤波器中的至少一个和一个解相关滤波器的第二输入通道，以及b处理所述第二输入通道 ），尽管角度偏差的第二输入信道的一个方向和所述第一输出通道的方向之间的factthat的是小于在第二输入信道的一个方向和所述第二输出通道之间和/或角的偏差为小于 到第二输入通道的方向和第三输出通道的方向之间的角度偏差，通过在第二和第三输出通道之间平移映射第二输入信道到第二和第三输出通道。

    APPARATUS, METHOD AND COMPUTER PROGRAM FOR PROVIDING ADJUSTED PARAMETERS
    28.
    发明公开
    APPARATUS, METHOD AND COMPUTER PROGRAM FOR PROVIDING ADJUSTED PARAMETERS 审中-公开

    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.

    METHOD AND SIGNAL PROCESSING UNIT FOR MAPPING A PLURALITY OF INPUT CHANNELS OF AN INPUT CHANNEL CONFIGURATION TO OUTPUT CHANNELS OF AN OUTPUT CHANNEL CONFIGURATION
    30.
    发明公开
    METHOD AND SIGNAL PROCESSING UNIT FOR MAPPING A PLURALITY OF INPUT CHANNELS OF AN INPUT CHANNEL CONFIGURATION TO OUTPUT CHANNELS OF AN OUTPUT CHANNEL CONFIGURATION 有权
    方法和信号处理单元输入信道配置多个输入通道为了使输出信道配置输出通道转让

    公开(公告)号：EP3133840A1

    公开(公告)日：2017-02-22

    申请号：EP16187406.0

    申请日：2014-07-15

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

    发明人： Herre, Jürgen ,  Küch, Fabian ,  Kratschmer, Michael ,  Kuntz, Achim ,  Faller, Christoph

    IPC分类号： H04S3/00 ,  H04S7/00 ,  G10L19/008

    CPC分类号： H04S7/303 ,  G10L19/008 ,  H04R5/02 ,  H04S3/002 ,  H04S3/02 ,  H04S7/30 ,  H04S7/302 ,  H04S7/305 ,  H04S7/308 ,  H04S2400/01 ,  H04S2400/03 ,  H04S2420/03

    摘要： A method for mapping a plurality of input channels of an input channel configuration to output channels of an output channel configuration comprises providing a set of rules associated with each input channel of the plurality of input channels, wherein the rules define different mappings between the associated input channel and a set of output channels. For each input channel of the plurality of input channels, a rule associated with the input channel is accessed, determination is made whether the set of output channels defined in the accessed rule is present in the output channel configuration, and the accessed rule is selected if the set of output channels defined in the accessed rule is present in the output channel configuration. The input channels are mapped to the output channels according to the selected rule. A rule of a set of rules associated with an input channel comprising a rear center direction defines mapping the input channel to two output channels, one located on the left side of a front center direction and one located on the right side of the front center direction, wherein the rule further defines using a gain coefficient of less than one if an angle of the two output channels relative to the rear center direction is more than 90°

    摘要翻译： 一种用于绘制的输入信道配置到一个输出信道配置的输出通道的输入信道与多个包括提供一组与输入信道的多个每个输入通道相关联的规则，worin规则方法定义相关联的输入之间的不同映射 信道和一组输出通道。 对于输入信道的多个每个输入通道，与所述输入通道相关联的规则被访问时，确定是否设定在所访问的规则定义的输出信道的存在于输出信道的配置，和所访问的规则被选择的，如果 该组中被访问的规则定义的输出信道的存在于输出信道的配置。 输入信道被映射到gemäß到所选择的规则的输出通道。 一组包括后中心方向与输入信道相关联的规则的规则定义映射输入通道到两个输出通道，一个位于前中心方向的左侧和一个位于所述前部中心方向的右侧 使用小于一的增益系数如果在两个输出信道相对于后中心方向的角度大于90°worin规则还限定