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81. 发明授权

EP3025341B1 NOISE FILLING IN MULTICHANNEL AUDIO CODING 有权
标题翻译：多通道音频编码中的噪声填充
公开(公告)号：EP3025341B1
公开(公告)日：2017-09-06
申请号：EP14744026.7
申请日：2014-07-18
申请人： Fraunhofer Gesellschaft zur Förderung der angewandten Forschung E.V.
发明人： LUIS VALERO, Maria , HELMRICH, Christian , HILPERT, Johannes
IPC分类号： G10L19/035 , G10L19/008 , G10L19/028 , H04S3/00
CPC分类号： G10L19/028 , G10L19/008 , G10L19/035 , H04S3/008 , H04S2400/01 , H04S2400/03 , H04S2420/03

82. 发明授权

EP3022735B1 AUDIO ENCODER, AUDIO DECODER, METHODS AND COMPUTER PROGRAM USING JOINTLY ENCODED RESIDUAL SIGNALS 有权
标题翻译：音频编码器，音频解码器，方法和计算机程序使用联合编码的残留信号
公开(公告)号：EP3022735B1
公开(公告)日：2017-09-06
申请号：EP14739141.1
申请日：2014-07-11
申请人： Fraunhofer Gesellschaft zur Förderung der angewandten Forschung e.V.
发明人： DICK, Sascha , ERTEL, Christian , HELMRICH, Christian , HILPERT, Johannes , HÖLZER, Andreas , KUNTZ, Achim
IPC分类号： G10L19/008 , G10L21/038 , G10L19/00
CPC分类号： G10L19/008 , G10L19/0017 , G10L21/038 , H04S3/008 , H04S7/30 , H04S2400/01 , H04S2400/03 , H04S2420/03
摘要： An audio decoder for providing at least four bandwidth-extended channel signals on the basis of an encoded representation is configured to provide a first downmix signal and a second downmix signal on the basis of a jointly encoded representation of the first downmix signal and the second downmix signal using a multi-channel decoding. The audio decoder is configured to provide at least a first audio channel signal and a second audio channel signal on the basis of the first downmix signal using a multi-channel decoding. The audio decoder is configured to provide at least a third audio channel signal and a fourth audio channel signal on the basis of the second downmix signal using a multi-channel decoding. The audio decoder is configured to perform a multi-channel bandwidth extension on the basis of the first audio channel signal and the third audio channel signal, to obtain a first bandwidth-extended channel signal and a third bandwidth-extended channel signal. The audio decoder is configured to perform a multi-channel bandwidth extension on the basis of the second audio channel signal and the fourth audio channel signal, to obtain a second bandwidth extended channel signal and a fourth bandwidth extended channel signal. An audio encoder uses a related concept.
摘要翻译：用于基于编码表示提供至少四个带宽扩展信道信号的音频解码器被配置为基于第一缩混信号和第二缩混信号的联合编码表示来提供第一缩混信号和第二缩混信号信号使用多通道解码。音频解码器被配置为使用多声道解码基于第一缩混信号来提供至少第一音频声道信号和第二音频声道信号。音频解码器被配置为使用多声道解码基于第二降混信号来提供至少第三音频声道信号和第四音频声道信号。音频解码器被配置为基于第一音频信道信号和第三音频信道信号来执行多信道带宽扩展，以获得第一带宽扩展信道信号和第三带宽扩展信道信号。音频解码器被配置为基于第二音频信道信号和第四音频信道信号来执行多信道带宽扩展，以获得第二带宽扩展信道信号和第四带宽扩展信道信号。音频编码器使用相关的概念。

83. 发明公开

EP3025344A1 APPARATUS AND METHOD FOR DECODING AN ENCODED AUDIO SIGNAL USING A CROSS-OVER FILTER AROUND A TRANSITION FREQUENCY 有权
标题翻译：装置和方法用于解码编码的音频信号，使用交会滤镜应用于过频
公开(公告)号：EP3025344A1
公开(公告)日：2016-06-01
申请号：EP14741264.7
申请日：2014-07-15
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.

84. 发明公开

EP3025340A1 APPARATUS AND METHOD FOR DECODING OR ENCODING AN AUDIO SIGNAL USING ENERGY INFORMATION VALUES FOR A RECONSTRUCTION BAND 有权
标题翻译：对于能源信息编码解码和音频信号的装置和方法值重建BAND
公开(公告)号：EP3025340A1
公开(公告)日：2016-06-01
申请号：EP14738854.0
申请日：2014-07-15
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
发明人： NIEDERMEIER, Andreas , ERTEL, Christian , GEIGER, Ralf , GHIDO, Florin , HELMRICH, Christian
IPC分类号： G10L19/028
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.

85. 发明公开

EP3025328A1 AUDIO ENCODER, AUDIO DECODER AND RELATED METHODS USING TWO-CHANNEL PROCESSING WITHIN AN INTELLIGENT GAP FILLING FRAMEWORK 有权
标题翻译：音频编码器，音频解码器和相关方法使用两个通道处理在智能LÜCKENFÜLLRAHMEN
公开(公告)号：EP3025328A1
公开(公告)日：2016-06-01
申请号：EP14739160.1
申请日：2014-07-15
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
发明人： DISCH, Sascha , NAGEL, Frederik , GEIGER, Ralf , THOSHKAHNA, Balaji Nagendran , SCHMIDT, Konstantin , BAYER, Stefan , NEUKAM, Christian , EDLER, Bernd , HELMRICH, Christian
IPC分类号： G10L19/008 , G10L21/038 , G10L19/18 , 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.

86. 发明公开

EP3017448A1 APPARATUS, METHOD AND COMPUTER PROGRAM FOR DECODING AN ENCODED AUDIO SIGNAL 有权
标题翻译：设备，方法和计算机程序用于解码编码的音频信号
公开(公告)号：EP3017448A1
公开(公告)日：2016-05-11
申请号：EP14739811.9
申请日：2014-07-15
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： G10L21/038 , G10L19/028
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。

87. 发明公开

EP2959481A1 APPARATUS AND METHOD FOR GENERATING AN ENCODED SIGNAL OR FOR DECODING AN ENCODED AUDIO SIGNAL USING A MULTI OVERLAP PORTION 有权
标题翻译： DEVICE AND METHOD FOR产生编码音频或图像信号或用于使用多个重叠部分进行解码瞬态的存在下，经编码的音频或图象信号
公开(公告)号：EP2959481A1
公开(公告)日：2015-12-30
申请号：EP14706528.8
申请日：2014-02-20
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
发明人： HELMRICH, Christian , LECOMTE, Jérémie , MARKOVIC, Goran , SCHNELL, Markus , EDLER, Bernd , REUSCHL, Stefan
IPC分类号： G10L19/025
CPC分类号： G10L19/025 , G10L19/0212 , G10L19/022 , H04N19/172 , H04N19/176 , H04N19/44
摘要： An apparatus for generating an encoded signal, comprises: a window sequence controller (808) for generating a window sequence information (809) for windowing an audio or image signal, the window sequence information indicating a first window (1500) for generating a first frame of spectral values, a second window function (1502) and at least one third window function (1503) for generating a second frame of spectral values, wherein the first window function (1500), the second window function (1502) and the one or more third window functions overlap within a multi-overlap region (1300); a preprocessor (802) for windowing (902) a second block of samples corresponding to the second window function and the at least one third window functions using an auxiliary window function (1 100) to obtain a second block of windowed samples, and for preprocessing (904) the second block of windowed samples using a folding-in operation of a portion of the second block overlapping with a first block into the multi-overlap portion (1300) to obtain a preprocessed second block of windowed samples having a modified multi-overlap portion; a spectrum converter (804) for applying an aliasing-introducing transform (906) to the first block of samples using the first window function to obtain the first frame of spectral values, for applying the aliasing introducing transform to a first portion of the preprocessed second block of windowed samples using the second window function to obtain a first portion of spectral samples of a second frame and for applying the aliasing introducing transform to a second portion of the preprocessed second block of windowed samples using the one or more third window functions (1503) to obtain a second portion of spectral samples of the second frame; and a processor (806) for processing the first frame and the second frame to obtain encoded frames of the audio or image signal.
摘要翻译：为编码信号的生成的装置，包括：用于产生一个窗口序列信息用于音频或图像信号的窗口的窗口序列控制器，所述窗序列信息，其指示第一窗口，用于产生频谱值的第一帧，第二窗函数，并在用于产生频谱值的第二帧，所述worin第一窗函数，所述第二窗口函数和一个或多个第三窗函数的多重叠区域内重叠至少一个第三窗函数; 加窗相应于第二窗口函数的样本的第二块，并使用辅助窗函数的获得加窗采样的第二块中，频谱转换器，用于施加到混叠引入变换至少一个第三窗口函数的预处理器; 以及用于处理所述第一帧和所述第二帧中的处理器来获取编码的音频或图象信号的帧。

88. 发明公开

EP2951826A1 APPARATUS AND METHOD FOR GENERATING A FREQUENCY ENHANCEMENT SIGNAL USING AN ENERGY LIMITATION OPERATION 有权转让
标题翻译：装置和方法用于产生信号频率增益使用电流限制动作
公开(公告)号：EP2951826A1
公开(公告)日：2015-12-09
申请号：EP14702224.8
申请日：2014-01-28
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
发明人： DISCH, Sascha , GEIGER, Ralf , HELMRICH, Christian , MULTRUS, Markus , SCHMIDT, Konstantin
IPC分类号： G10L21/038
CPC分类号： G10L19/12 , G10L19/0204 , G10L19/032 , G10L19/06 , G10L21/038 , G10L21/0388 , G10L25/18 , G10L2019/0012 , G10L2019/0016
摘要： An apparatus for generating a frequency enhancement signal (130), comprises: a signal generator (200) for generating an enhancement signal from a core signal (120), the enhancement signal comprising an enhancement frequency range not included in the core signal, wherein a time portion of the enhancement signal comprises subband signals for a plurality of subbands; a synthesis filterbank (300) for generating the frequency enhanced signal (140) using the enhancement signal (130), wherein the signal generator (200) is configured for performing an energy limitation in order to make sure that the frequency enhanced signal (140) obtained by the synthesis filterbank (300) is so that an energy of a higher band is, at the most, equal to an energy in a lower band or is greater than an energy of a higher band, at the most, by a predefined threshold.
摘要翻译：用于产生频率增强信号的装置，包括：用于在增强信号从核心信号产生一个信号发生器，所述增强信号上不包含在核心信号增强的频率范围，包括worin增强信号的一时间部分包括子带信号用于子带的多元性; 用于使用所述增强信号产生的频率增强信号，worin信号发生器的合成滤波器组被配置为以使surethat由合成滤波器组获得的所以没有在能量较高频段是频增强信号执行能量限制的，至多等于在能量在较低的皮带或比在较高的频带的能量大，至多，由预定义的阈值。

89. 发明公开

EP2939235A1 LOW-COMPLEXITY TONALITY-ADAPTIVE AUDIO SIGNAL QUANTIZATION 有权
标题翻译：音调自适应AUDIOSIGNALQUANTISIERUNG低复杂度
公开(公告)号：EP2939235A1
公开(公告)日：2015-11-04
申请号：EP14701558.0
申请日：2014-01-28
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
发明人： DIETZ, Martin , FUCHS, Guillaume , HELMRICH, Christian , MARKOVIC, Goran
IPC分类号： G10L19/035 , G10L19/02 , G10L25/03
CPC分类号： G10L19/035 , G10H1/06 , G10H2210/561 , G10L19/0212 , G10L25/03 , G10L25/18 , G10L25/21 , G10L25/45
摘要： The invention provides an audio encoder for encoding an audio signal (AS) so as to produce therefrom an encoded signal (ES), the audio encoder (1) comprising: a framing device (2) configured to extract frames (F) from the audio signal (AS); a quantizer (3) configured to map spectral lines (SL
1-32 ) of a spectrum signal (SPS) derived from the frame (F) of the audio signal (AS) to quantization indices (I
0 , I
1 ), wherein the quantizer (3) has a dead-zone (DZ), in which the input spectral lines (SL) are mapped to quantization index zero (I
0 ); and a control device (4) configured to modify the dead-zone (DZ); wherein the control device (4) comprises a tonality calculating device (5) configured to calculate at least one tonality indicating value (TI
5.32 ) for at least one spectrum line (SL
1-32 ) or for at least one group of spectral lines (SL
1-32 ), wherein the control device (4) is configured to modify the dead-zone (DZ) for the at least one spectrum line (SL
1-32 ) or the at least one group of spectrum lines (SL
1-32 ) depending on the respective tonality indicating value (TI
5-32 ).

90. 发明公开

EP2904612A1 AN APPARATUS FOR ENCODING A SPEECH SIGNAL EMPLOYING ACELP IN THE AUTOCORRELATION DOMAIN 有权
标题翻译： DEVICE语音信号与ACELP在自相关区码
公开(公告)号：EP2904612A1
公开(公告)日：2015-08-12
申请号：EP13742646.6
申请日：2013-07-31
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
发明人： BÄCKSTRÖM, Tom , MULTRUS, Markus , FUCHS, Guillaume , HELMRICH, Christian , DIETZ, Martin
IPC分类号： G10L19/107
CPC分类号： G10L19/038 , G10L19/107 , G10L2019/0001
摘要： An apparatus for encoding a speech signal by determining a codebook vector of a speech coding algorithm is provided. The apparatus includes a matrix determiner for determining an autocorrelation matrix R, and a codebook vector determiner for determining the codebook vector depending on the autocorrelation matrix R. The matrix determiner is configured to determine the autocorrelation matrix R by determining vector coefficients of a vector r, wherein the autocorrelation matrix R includes a plurality of rows and a plurality of columns, wherein the vector r indicates one of the columns or one of the rows of the autocorrelation matrix R, wherein R(i, j)=r(|i−j|), wherein R(i, j) indicates the coefficients of the autocorrelation matrix R, wherein i is a first index indicating one of a plurality of rows of the autocorrelation matrix R, and wherein j is a second index indicating one of the plurality of columns of the autocorrelation matrix R.

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