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21. 发明公开

EP2963648A1 Audio processor and method for processing an audio signal using vertical phase correction 审中-公开
标题翻译：音频处理器和方法用于处理具有垂直相位修正的音频信号
公开(公告)号：EP2963648A1
公开(公告)日：2016-01-06
申请号：EP15151476.7
申请日：2015-01-16
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
发明人： Disch, Sascha , Laitinen, Mikko-Ville , Pulkki, Ville
IPC分类号： G10L21/038
CPC分类号： G10L19/0204 , G10L19/02 , G10L19/0208 , G10L19/025 , G10L19/18 , G10L19/26 , G10L21/007 , G10L21/038
摘要： It is described an audio processor 50' for processing an audio signal 55. The audio processor 50' comprises a target phase measure determiner 65' for determining a target phase measure 85' for the audio signal 55 in a time frame 75, a phase error calculator 200 for calculating a phase error 105' using a phase of the audio signal 55 in the time frame 75 and the target phase measure 85', and a phase corrector 70' configured for correcting the phase of the audio signal 55 in the time frame using the phase error 105'.
摘要翻译：在时间帧75，一个相位误差，描述在音频处理器50“的音频信号55.音频处理器50的处理”包括目标相位测量确定器65，用于将音频信号55“用于确定性挖掘目标相位测量85” 用于计算的相位误差105“使用的时间帧75中的音频信号55的相位和目标相位测量85”，和一个相位校正器70计算器200“配置用于在所述时间帧校正的音频信号55的相位使用的相位误差105”。

22. 发明公开

EP2963646A1 Decoder and method for decoding an audio signal, encoder and method for encoding an audio signal 审中-公开
标题翻译：解码器和方法，用于编码音频信号的音频信号编码器和解码方法
公开(公告)号：EP2963646A1
公开(公告)日：2016-01-06
申请号：EP15151463.5
申请日：2015-01-16
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
发明人： Disch, Sascha , Laitinen, Mikko-Ville , Pulkki, Ville
IPC分类号： G10L19/18 , G10L19/02 , G10L21/038 , G10L21/007
CPC分类号： G10L19/0204 , G10L19/02 , G10L19/0208 , G10L19/025 , G10L19/18 , G10L19/26 , G10L21/007 , G10L21/038
摘要： It is shown a decoder 110" for decoding an audio signal 32. The decoder 110"comprises a first target spectrum generator 65a for generating a target spectrum 85a" for a first time frame of a subband signal of the audio signal 32 using first correction data 295a. A first phase corrector 70a for corrects a phase 45 of the subband signal in the first time frame of the audio signal 32 determined with a phase correction algorithm, wherein the correction is performed by reducing a difference between a measure of the subband signal in the first time frame of the audio signal 32 and the target spectrum 85a". An audio subband signal calculator 350 calculates the audio subband signal 355 for the first time frame using a corrected phase 91a for the time frame and for calculating audio subband signals 355 for a second time frame different from the first time frame using the measure of the subband signal 85a" in the second time frame or using a corrected phase calculation in accordance with a further phase correction algorithm different from the phase correction algorithm.
摘要翻译：它被示出“用于音频信号32的解码器110的解码”的解码器110包括第一目标谱生成部65a使用第一校正数据产生目标光谱85A“为音频信号32的子带信号的第一时间帧 295A。第一相位校正器70A为校正子带信号的相位45中的音频信号的所述第一时间帧32确定性开采有相位校正算法，worin校正通过减小子带信号的一个量度之间的差来执行音频信号32的第一时间帧和目标光谱85A”。一个音频子带信号计算器350计算所述音频子带信号355用于使用校正的相位91A的时间帧中的第一时间帧以及用于使用所述子带的所述量度来计算音频子带信号355，用于从第一时间帧的第二时间帧在第二时间帧或使用雅舞蹈校正的相位计算与来自相位校正算法不同一个另外的相位校正算法信号85A”。

23. 发明公开

EP2963645A1 Calculator and method for determining phase correction data for an audio signal 审中-公开
标题翻译：机器和方法用于确定音频信号的相位校正数据
公开(公告)号：EP2963645A1
公开(公告)日：2016-01-06
申请号：EP15151465.0
申请日：2015-01-16
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
发明人： Disch, Sascha , Laitinen, Mikko-Ville , Pulkki, Ville
IPC分类号： G10L19/02 , G10L21/038
CPC分类号： G10L19/0204 , G10L19/02 , G10L19/0208 , G10L19/025 , G10L19/18 , G10L19/26 , G10L21/007 , G10L21/038
摘要： It is shown a calculator 270 for determining phase correction data 295 for an audio signal 55. The calculator comprises a variation determiner 275 for determining a variation of a phase of the audio signal 55 in a first and a second variation mode, a variation comparator 280 for comparing a first variation 290a determined using the first variation mode and a second variation 290b determined using the second variation mode, and a correction data calculator 285 for calculating the phase correction data 295 in accordance with the first variation mode or the second variation mode based on a result of the comparing.
摘要翻译：在音频信号55.计算器确定器275包括变化确定性采矿音频信号55的相位的变化转换成第一和第二变型方式中，变化比较器280中，示出了确定性的采矿相位校正数据295计算器270 用于比较的第一变体290a确定性使用第一变化模式并使用所述第二变化模式开采的第二变形290B确定性的，并且基于与所述第一变化模式或第二变化模式计算雅舞蹈的相位校正数据295的校正数据计算器285开采在比较的结果。

24. 发明公开

EP2947657A1 AUDIO ENCODER, AUDIO DECODER AND RELATED METHODS FOR PROCESSING MULTI-CHANNEL AUDIO SIGNALS USING COMPLEX PREDICTION AND REAL INDICATOR 有权转让
标题翻译：音频编码器，用于进行多声道音频音频解码器和相关方法信号使用复杂的预测与真实指标
公开(公告)号：EP2947657A1
公开(公告)日：2015-11-25
申请号：EP15176785.2
申请日：2011-03-23
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. , Dolby International AB
发明人： Purnhagen, Heiko , Carlsson, Pontus , Villemoes, Lars , Robilliard, Julien , Neusinger, Matthias , Helmrich, Christian , Hilpert, Johannes , Rettelbach, Nikolaus , Disch, Sascha , Edler, Bernd
IPC分类号： G10L19/008 , G10L19/04 , G10L19/022
CPC分类号： G10L19/04 , G10L19/008
摘要： An audio encoder and an audio decoder are based on a combination of two audio channels (201, 202) to obtain a first combination signal (204) as a mid signal and a residual signal (205) which can be derived using a predicted side signal derived from the mid signal. The first combination signal and the prediction residual signal are encoded (209) and written (212) into a data stream (213) together with the prediction information (206) derived by an optimizer (207) based on an optimization target (208). A decoder uses the prediction residual signal, the first combination signal and the prediction information to derive a decoded first channel signal and a decoded second channel signal. In an encoder example or in a decoder example, a real-to-imaginary transform can be applied for estimating the imaginary part of the spectrum of the first combination signal. For calculating the prediction signal used in the derivation of the prediction residual signal, the real-valued first combination signal is multiplied by a real portion of the complex prediction information and the estimated imaginary part of the first combination signal is multiplied by an imaginary portion of the complex prediction information.
摘要翻译：到音频解码器的音频编码器，并且基于两个音频信道的组合（201,202），以获得第一组合信号（204）作为一个中间信号和其可以使用预测的侧信号导出的残差信号（205）从中间信号导出。第一组合信号和所述预测残差信号进行编码（209）和写入（212）成数据流（213），在优化目标（208）的基础上通过在优化器（207）导出的所述预测信息（206）连接在一起。解码器使用所述预测残差信号，第一组合信号和预测信息来导出经解码的第一声道信号和解码的第二信道信号。在编码器实施例中或在解码器实施例中，实部 - 虚数变换可以应用用于估计所述第一组合信号的频谱的虚部。用于计算预测残留信号的导出中使用的预测信号，该实值的第一组合信号，乘以的复预测信息和所述第一组合信号的估算虚部实数部分在虚部被-乘以复杂的预测信息。

25. 发明公开

EP2947654A1 AUDIO ENCODER, AUDIO DECODER AND RELATED METHODS FOR PROCESSING MULTI-CHANNEL AUDIO SIGNALS USING COMPLEX PREDICTION AND A TRANSFORM LENGTH INDICATOR 有权转让
标题翻译：音频编码器，用于进行多声道音频音频解码器和相关方法信号的应用转型长度指示一个复预测
公开(公告)号：EP2947654A1
公开(公告)日：2015-11-25
申请号：EP15176781.1
申请日：2011-03-23
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. , Dolby International AB
发明人： Purnhagen, Heiko , Carlsson, Pontus , Villemoes, Lars , Robilliard, Julien , Neusinger, Matthias , Helmrich, Christian , Hilpert, Johannes , Rettelbach, Nikolaus , Disch, Sascha , Edler, Bernd
IPC分类号： G10L19/008 , G10L19/04 , G10L19/022
CPC分类号： G10L19/04 , G10L19/008
摘要： An audio encoder and an audio decoder are based on a combination of two audio channels (201, 202) to obtain a first combination signal (204) as a mid signal and a residual signal (205) which can be derived using a predicted side signal derived from the mid signal. The first combination signal and the prediction residual signal are encoded (209) and written (212) into a data stream (213) together with the prediction information (206) derived by an optimizer (207) based on an optimization target (208). A decoder uses the prediction residual signal, the first combination signal and the prediction information to derive a decoded first channel signal and a decoded second channel signal. In an encoder example or in a decoder example, a real-to-imaginary transform can be applied for estimating the imaginary part of the spectrum of the first combination signal. For calculating the prediction signal used in the derivation of the prediction residual signal, the real-valued first combination signal is multiplied by a real portion of the complex prediction information and the estimated imaginary part of the first combination signal is multiplied by an imaginary portion of the complex prediction information.
摘要翻译：到音频解码器的音频编码器，并且基于两个音频信道的组合（201,202），以获得第一组合信号（204）作为一个中间信号和其可以使用预测的侧信号导出的残差信号（205）从中间信号导出。第一组合信号和所述预测残差信号进行编码（209）和写入（212）成数据流（213），在优化目标（208）的基础上通过在优化器（207）导出的所述预测信息（206）连接在一起。解码器使用所述预测残差信号，第一组合信号和预测信息来导出经解码的第一声道信号和解码的第二信道信号。在编码器实施例中或在解码器实施例中，实部 - 虚数变换可以应用用于估计所述第一组合信号的频谱的虚部。用于计算预测残留信号的导出中使用的预测信号，该实值的第一组合信号，乘以的复预测信息和所述第一组合信号的估算虚部实数部分在虚部被-乘以复杂的预测信息。

26. 发明授权

EP2704142B1 Apparatus and method for reproducing an audio signal, apparatus and method for generating a coded audio signal, computer program and coded audio signal 有权
标题翻译：装置以及用于再现用于产生编码音频信号的音频信号，装置和方法的方法，以及计算机程序编码的音频信号
公开(公告)号：EP2704142B1
公开(公告)日：2015-09-02
申请号：EP12187265.9
申请日：2012-10-04
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
发明人： Disch, Sascha , Schubert, Benjamin , Multrus, Markus , Helmrich, Christian , Schmidt, Konstantin
IPC分类号： G10L21/038
CPC分类号： G10L19/265 , G10L19/0017 , G10L21/038

27. 发明公开

EP2830065A1 Apparatus and method for decoding an encoded audio signal using a cross-over filter around a transition frequency 审中-公开
标题翻译：的装置和方法使用重叠滤波器的过渡频率解码编码的音频信号
公开(公告)号：EP2830065A1
公开(公告)日：2015-01-28
申请号：EP13189389.3
申请日：2013-10-18
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
发明人： Disch, Sascha , Geiger, Ralf , Helmrich, Christian , Nagel, Frederik , Neukam christian , Schmidt, Konstantin , Fischer, Michael
IPC分类号： G10L21/0388 , G10L19/028 , G10L19/02
CPC分类号： G10L19/008 , G10L19/02 , G10L19/0204 , G10L19/0208 , G10L19/0212 , G10L19/022 , G10L19/025 , G10L19/03 , G10L19/032 , G10L19/06 , G10L21/0388 , G10L25/06 , H04S1/007
摘要： Apparatus for decoding an encoded audio signal comprising an encoded core signal (1), comprising: a core decoder (1400) for decoding the encoded core signal (1401) to obtain a decoded core signal; a tile generator (1404) for generating one or more spectral tiles having frequencies not included in the decoded core signal using a spectral portion of the decoded core signal; and a cross-over filter (1406) for spectrally cross-over filtering the decoded core signal and a first frequency tile having frequencies extending from a gap filling frequency (309) to an upper border frequency or for spectrally cross-over filtering a first frequency tile and a second frequency tile.
摘要翻译：一种用于包括编码信号的核心的编码音频信号的解码（1），包括：用于对编码核心信号（1401），以获得经解码的核心信号进行解码的核心解码器（1400）; 图块生成器（1404），用于产生具有不包括在核心使用解码核心信号的频谱部分的解码信号的频率的一个或多个光谱的瓷砖; 和交叉过滤器（1406）用于光谱交叉滤波解码核心信号和具有频率从间隙延伸的上边界频率或用于光谱交叉滤波的第一频率填充频率（309）到第一频率瓦片瓦片和第二频率块。

28. 发明公开

EP2418877A1 An apparatus for determining a spatial output multi-channel audio signal 有权
标题翻译：一种用于确定空间输出多声道音频信号的设备
公开(公告)号：EP2418877A1
公开(公告)日：2012-02-15
申请号：EP11187023.4
申请日：2009-08-11
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
发明人： Disch, Sascha , Pulkki, Ville , Laitinen, Mikko-Ville , Erkut, Cumhur
IPC分类号： H04S7/00
CPC分类号： H04S7/30 , H04S2400/11 , H04S2420/03
摘要： An apparatus (100) for determining a spatial output multi-channel audio signal based on an input audio signal and an input parameter. The apparatus (100) comprises a decomposer (110) for decomposing the input audio signal based on the input parameter to obtain a first decomposed signal and a second decomposed signal different from each other. Furthermore, the apparatus (100) comprises a renderer (110) for rendering the first decomposed signal to obtain a first rendered signal having a first semantic property and for rendering the second decomposed signal to obtain a second rendered signal having a second semantic property being different from the first semantic property. The apparatus (100) comprises a processor (130) for processing the first rendered signal and the second rendered signal to obtain the spatial output multi-channel audio signal.
摘要翻译：一种用于基于输入音频信号和输入参数来确定空间输出多声道音频信号的装置（100）。装置（100）包括分解器（110），用于基于输入参数分解输入音频信号以获得彼此不同的第一分解信号和第二分解信号。此外，装置（100）包括渲染器（110），用于渲染第一分解信号以获得具有第一语义属性的第一渲染信号并且渲染第二分解信号以获得具有第二语义属性不同的第二渲染信号来自第一个语义属性。装置（100）包括用于处理第一渲染信号和第二渲染信号以获得空间输出多声道音频信号的处理器（130）。

29. 发明公开

EP2362376A2 Apparatus and method for modifying an audio signal using envelope shaping 审中-公开
标题翻译：使用包络整形来修改音频信号的设备和方法
公开(公告)号：EP2362376A2
公开(公告)日：2011-08-31
申请号：EP10175302.8
申请日：2010-09-03
申请人： Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V.
发明人： Disch, Sascha
IPC分类号： G10H1/08 , G10H1/20
CPC分类号： H03G3/00 , G10H1/08 , G10H1/20 , G10H3/125 , G10H2210/066 , G10H2250/031 , G10L21/00 , G10L25/18 , G10L25/90 , G10L2021/0135 , H03G5/00
摘要： An apparatus for modifying an audio signal comprises an envelope shape determiner, a filterbank processor, a signal processor, a combiner and an envelope shaper. The envelope shape determiner determines envelope shape coefficients based on the a frequency domain audio signal representing a time domain input audio signal and the filterbank processor generates a plurality of bandpass signals in a subband domain based on the frequency domain audio signal. Further the signal processor modifies a subband domain bandpass signal of the plurality of subband domain bandpass signals based on a predefined modification target. The combiner combines at least a subset of the plurality of subband domain bandpass signals containing the modified subband domain bandpass signal to obtain a time domain audio signal. Further, the envelope shaper shapes an envelope of the time domain audio signal based on the envelope shape coefficients, shapes an envelope of the plurality of subband domain bandpass signals containing the modified subband domain bandpass signal based on the envelope shape coefficients or shapes an envelope of the plurality of subband domain bandpass signals based on the envelope shape coefficients before a subband domain bandpass signal is modified by the signal processor to obtain a shaped audio signal.
摘要翻译：一种用于修改音频信号的设备包括：包络形状确定器，滤波器组处理器，信号处理器，组合器和包络成形器。包络形状确定器基于表示时域输入音频信号的频域音频信号来确定包络形状系数，并且滤波器组处理器基于频域音频信号在子带域中生成多个带通信号。此外，信号处理器基于预定义的修改目标来修改多个子带域带通信号中的子带域带通信号。组合器将包含修改的子带域带通信号的多个子带域带通信号的至少一个子集组合以获得时域音频信号。此外，包络成形器基于包络形状系数来形成时域音频信号的包络，基于包络形状系数来形成包含经修改的子带域带通信号的多个子带域带通信号的包络，或者形成包络基于子带域带通信号之前的包络形状系数的多个子带域带通信号被信号处理器修改以获得整形音频信号。

30. 发明公开

EP4404560A2 AUDIO DECODING METHOD FOR PROCESSING STEREO AUDIO SIGNALS USING A VARIABLE PREDICTION DIRECTION 审中-实审
公开(公告)号：EP4404560A2
公开(公告)日：2024-07-24
申请号：EP24167075.1
申请日：2011-02-17
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
发明人： Julien, Robilliard , Neusinger, Matthias , Helmrich, Christian , Hilpert, Johannes , Rettelbach, Nikolaus , Disch, Sascha , Edler, Bernd
IPC分类号： H04N19/154
CPC分类号： G10L19/008 , G10L19/06 , H04N19/50 , H04N19/105 , H04N19/156 , H04N19/154 , H04N19/146 , H04N19/70
摘要： An audio or video encoder and an audio or video decoder are based on a combination of two audio or video channels (201, 202) to obtain a first combination signal (204) as a mid signal and a residual signal (205) which can be derived using a predicted side signal derived from the mid signal. The first combination signal and the prediction residual signal are encoded (209) and written (212) into a data stream (213) together with the prediction information (206) derived by an optimizer (207) based on an optimization target (208) and a prediction direction indicator indicating a prediction direction associated with the residual signal. A decoder uses the prediction residual signal, the first combination signal, the prediction direction indicator and the prediction information to derive a decoded first channel signal and a decoded second channel signal. In an encoder example or in a decoder example, a real-to-imaginary transform can be applied for estimating the imaginary part of the spectrum of the first combination signal. For calculating the prediction signal used in the derivation of the prediction residual signal, the real-valued first combination signal is multiplied by a real portion of the complex prediction information and the estimated imaginary part of the first combination signal is multiplied by an imaginary portion of the complex prediction information.

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