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    APPARATUS AND METHOD FOR DETERMINING A MEASURE FOR A PERCEIVED LEVEL OF REVERBERATION, AUDIO PROCESSOR AND METHOD FOR PROCESSING A SIGNAL
    21.
    发明公开
    APPARATUS AND METHOD FOR DETERMINING A MEASURE FOR A PERCEIVED LEVEL OF REVERBERATION, AUDIO PROCESSOR AND METHOD FOR PROCESSING A SIGNAL 审中-公开
    DEVICE AND METHOD FOR用于处理的信号来确定所述尺寸值感知混响LEVEL，音频处理器和方法

    公开(公告)号：EP2681932A1

    公开(公告)日：2014-01-08

    申请号：EP12706815.3

    申请日：2012-02-24

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

    发明人： UHLE, Christian ,  PAULUS, Jouni ,  HERRE, Juergen ,  PROKEIN, Peter ,  HELLMUTH, Oliver

    IPC分类号： H04S5/00 ,  G10K15/12

    CPC分类号： G10K15/08 ,  H04R29/00 ,  H04S5/005 ,  H04S7/30 ,  H04S2400/13 ,  H04S2420/07

    摘要： An apparatus for determining a measure for a perceived level of reverberation in a mix signal consisting of a direct signal component (100) and a reverberation signal component (102), comprises a loudness model processor (104) comprising a perceptual filter stage for filtering the dry signal component (100) the reverberation signal component (102) or the mix signal, wherein the perceptual filter stage is configured for modeling an auditory perception mechanism of an entity to obtain a filtered direct signal, a filtered reverberation signal or a filtered mix signal. The apparatus furthermore comprises a loudness estimator for estimating a first loudness measure using the filtered direct signal and for estimating a second loudness measure using the filtered reverberation signal or the filtered mix signal, where the filtered mix signal is derived from a superposition of the direct signal component and the reverberation signal component. The apparatus furthermore comprises a combiner (110) for combining the first and the second loudness measures (106, 108) to obtain a measure (112) for the perceived level of reverberation.

    摘要翻译： 确定性采矿一种用于混响的混合信号由直射信号分量（100）和混响信号分量（102）的感知水平的量度包括响度模型处理器（104），其包括感知滤波级，用于滤波 干信号分量（100），该混响信号分量（102）或所述混合信号，worin感知滤波器级被配置用于一个实体的听觉感知机制，以获得经滤波的直接信号，经滤波的混响信号或经滤波的混合信号建模 ， 所述装置还更包括响度估计器，用于利用滤波直接信号估计第一响度度量和使用该过滤混响信号或经滤波的混合信号，其中经滤波的混合信号被从直接信号的叠加衍生估计第二响度度量 分量和混响信号分量。 所述装置还包括多个用于将所述第一和第二响度测量（106，108）以获得用于混响的感知水平的度量（112）的组合器（110）。

    APPARATUS AND METHOD FOR REALIZING A SAOC DOWNMIX OF 3D AUDIO CONTENT
    28.
    发明公开
    APPARATUS AND METHOD FOR REALIZING A SAOC DOWNMIX OF 3D AUDIO CONTENT 审中-公开
    装置和方法实施的3D音频内容的SAOC-DOWN MIXES

    公开(公告)号：EP3025333A1

    公开(公告)日：2016-06-01

    申请号：EP14742188.7

    申请日：2014-07-16

    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 ,  RIDDERBUSCH, Falko ,  TERENTIV, Leon ,  PAULUS, Jouni

    IPC分类号： G10L19/008 ,  H04S3/00

    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.

    ENCODER, DECODER AND METHODS FOR BACKWARD COMPATIBLE DYNAMIC ADAPTION OF TIME/FREQUENCY RESOLUTION IN SPATIAL-AUDIO-OBJECT-CODING
    29.
    发明公开
    ENCODER, DECODER AND METHODS FOR BACKWARD COMPATIBLE DYNAMIC ADAPTION OF TIME/FREQUENCY RESOLUTION IN SPATIAL-AUDIO-OBJECT-CODING 审中-公开
    编码器，解码器和方法对于空间音频对象编码时间/频率分辨率的向后兼容的动态调整

    公开(公告)号：EP2904611A1

    公开(公告)日：2015-08-12

    申请号：EP13774118.7

    申请日：2013-10-02

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

    发明人： DISCH, Sascha ,  PAULUS, Jouni ,  EDLER, Bernd ,  HELLMUTH, Oliver ,  HERRE, Jürgen ,  KASTNER, Thorsten

    IPC分类号： G10L19/025 ,  G10L19/008

    CPC分类号： G10L19/008 ,  G10L19/02 ,  G10L19/0204 ,  G10L19/025 ,  G10L19/20

    摘要： A decoder for generating an audio output signal comprising one or more audio output channels from a downmix signal comprising a plurality of time-domain downmix samples is provided. The downmix signal encodes two or more audio object signals. The decoder comprises a window-sequence generator (134) for determining a plurality of analysis windows, wherein each of the analysis windows comprises a plurality of time-domain downmix samples of the downmix signal. Each analysis window of the plurality of analysis windows has a window length indicating the number of the time-domain downmix samples of said analysis window. The window-sequence generator (134) is configured to determine the plurality of analysis windows so that the window length of each of the analysis windows depends on a signal property of at least one of the two or more audio object signals. Moreover, the decoder comprises a t/f-analysis module (135) for transforming the plurality of time-domain downmix samples of each analysis window of the plurality of analysis windows from a time-domain to a time-frequency domain depending on the window length of said analysis window, to obtain a transformed downmix. Furthermore, the decoder comprises an un-mixing unit (136) for un-mixing the transformed downmix based on parametric side information on the two or more audio object signals to obtain the audio output signal. Moreover, an encoder is provided.

    摘要翻译： 提供了一种用于在包括一个或从下混信号包括时域混样品的多元性多个音频输出声道生成音频输出信号的解码器。 缩混信号编码两个或多个音频对象信号。 解码器用于确定性采矿包括窗口序列产生器（134）的分析窗口复数，worin每个分析窗口的包括缩混信号的时域混样品的多元性。 的分析窗，所述多个每个分析窗口具有窗口长度指示所述分析窗口的时域混的样本的数目。 窗口序列产生器（134）被配置为确定矿分析窗口多元性所以没有每个分析窗口的窗口长度取决于两个或更多个音频对象信号中的至少一个的信号特性。 更上方，所述解码器包括在/ F-分析模块（135），用于将的分析窗口，所述多个每个分析窗口的时域混样品的多元性从时域变换到时频域取决于窗口长度 所述分析窗口，以获得转化的缩混。 进一步，对于未混合单元（136）的解码器包括未混合的转化缩混基于关于两个或更多个音频对象信号，以获得所述音频输出信号参数侧信息。 更过，在编码器提供。