公开(公告)号：EP2866228B1

公开(公告)日：2016-06-01

申请号：EP14196262.1

申请日：2012-02-14

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

发明人： SETIAWAN, Panji ,  SCHMIDT, Konstantin ,  WILDE, Stephan

IPC分类号： G10L19/03 ,  G10L19/012 ,  G10L19/22 ,  G10L21/0216 ,  G10L25/78

CPC分类号： G10L19/00 ,  G10K11/16 ,  G10L19/005 ,  G10L19/012 ,  G10L19/0212 ,  G10L19/025 ,  G10L19/03 ,  G10L19/04 ,  G10L19/107 ,  G10L19/12 ,  G10L19/22 ,  G10L19/26 ,  G10L21/0216 ,  G10L25/06 ,  G10L25/78

公开(公告)号：EP2676269B1

公开(公告)日：2015-12-16

申请号：EP12706001.0

申请日：2012-02-14

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

发明人： GEIGER, Ralf ,  SCHMIDT, Konstantin ,  GRILL, Bernhard ,  LUTZKY, Manfred ,  WERNER, Michael ,  GAYER, Marc ,  HILPERT, Johannes ,  LUIS VALERO, Maria ,  JAEGERS, Wolfgang

IPC分类号： G10L19/03

CPC分类号： G10L19/00 ,  G10K11/16 ,  G10L19/005 ,  G10L19/012 ,  G10L19/0212 ,  G10L19/025 ,  G10L19/03 ,  G10L19/04 ,  G10L19/107 ,  G10L19/12 ,  G10L19/22 ,  G10L19/26 ,  G10L21/0216 ,  G10L25/06 ,  G10L25/78

公开(公告)号：EP2951827A1

公开(公告)日：2015-12-09

申请号：EP14702513.4

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 (140) comprises: a calculator (500) for calculating a value describing an energy distribution with respect to frequency in a core signal (110, 120); and a signal generator (200) for generating an enhancement signal (130) comprising an enhancement frequency range not included in the core signal, from the core signal (502), wherein the signal generator (200) is configured for shaping the enhancement signal or the core signal so that a spectral envelope of the enhancement signal or of the core signal depends on the value (501) describing the energy distribution with respect to frequency in the core signal.

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。

公开(公告)号：EP2951825A1

公开(公告)日：2015-12-09

申请号：EP14701750.3

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, 110), the enhancement signal comprising an enhancement frequency range not included in the core signal, wherein a current time portion (320, 340) of the enhancement signal or the core signal comprises subband signals for a plurality of subbands; a controller (800) for calculating the same smoothing information (802) for the plurality of subband signals of the enhancement frequency range or the core signal, and wherein the signal generator (200) is configured for smoothing the plurality of subband signals of the enhancement frequency range or the core signal using the same smoothing information (802).

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。

公开(公告)号：EP2888737A1

公开(公告)日：2015-07-01

申请号：EP13756417.5

申请日：2013-08-27

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

摘要： An apparatus for reproducing an audio signal based on first data representing a coded version of a first portion of the audio signal in a first frequency band and second data representing side information on a second portion of the audio signal in a second frequency band, the second frequency band comprising frequencies higher than the first frequency band, comprises a first reproducer configured to reproduce the first portion of the audio signal based on the first data. A provider is configured to provide a patch signal in the second frequency band, wherein the patch signal is at least partially uncorrelated with respect to the first portion of the audio signal or is at least partially a decorrelated version of the first portion of the audio signal, which has been shifted to the second frequency band. A second reproducer is configured to reproduce the second portion of the audio signal in the second frequency band based on the second data and the patch signal. A combiner is configured to combine the reproduced first portion of the audio signal and the patch signal before the second portion of the audio signal is reproduced by the second reproducer or to combine the reproduced first portion of the audio signal and the reproduced second portion of the audio signal.

公开(公告)号：EP2866228A1

公开(公告)日：2015-04-29

申请号：EP14196262.1

申请日：2012-02-14

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

发明人： SETIAWAN, Panji ,  SCHMIDT, Konstantin ,  WILDE, Stephan

IPC分类号： G10L19/012 ,  G10L21/0216 ,  G10L25/78

CPC分类号： G10L19/00 ,  G10K11/16 ,  G10L19/005 ,  G10L19/012 ,  G10L19/0212 ,  G10L19/025 ,  G10L19/03 ,  G10L19/04 ,  G10L19/107 ,  G10L19/12 ,  G10L19/22 ,  G10L19/26 ,  G10L21/0216 ,  G10L25/06 ,  G10L25/78

摘要： An audio decoder comprises a background noise estimator that is configured to update a parametric background noise estimate during an active phase. It further comprises a background noise generator configured to synthesize an audio signal during an inactive phase.

摘要翻译： 音频解码器包括背景噪声估计器，其被配置为在活动阶段期间更新参数背景噪声估计。 它还包括配置成在非活动阶段期间合成音频信号的背景噪声发生器。

公开(公告)号：EP4386745A3

公开(公告)日：2024-08-07

申请号：EP24165637.0

申请日：2016-06-10

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

发明人： SCHNELL, Markus ,  LUTZKY, Manfred ,  FOTOPOULOU, Eleni ,  SCHMIDT, Konstantin ,  BENNDORF, Conrad ,  TOMASEK, Adrian ,  ALBERT, Tobias ,  SEIDL, Timon

IPC分类号： G10L19/02 ,  G10L19/022

CPC分类号： G10L19/022 ,  G10L19/0212

摘要： A downscaled version of an audio decoding procedure may more effectively and/or at improved compliance maintenance be achieved if the synthesis window used for downscaled audio decoding is a downsampled version of a reference synthesis window involved in the non-downscaled audio decoding procedure by downsampling by the downsampling factor by which the downsampled sampling rate and the original sampling rate deviate, and downsampled using a segmental interpolation in segments of 1/4 of the frame length.

公开(公告)号：EP4375997A3

公开(公告)日：2024-07-24

申请号：EP24165642.0

申请日：2016-06-10

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

发明人： SCHNELL, Markus ,  LUTZKY, Manfred ,  FOTOPOULOU, Eleni ,  SCHMIDT, Konstantin ,  BENNDORF, Conrad ,  TOMASEK, Adrian ,  ALBERT, Tobias ,  SEIDL, Timon

IPC分类号： G10L19/02 ,  G10L19/022

CPC分类号： G10L19/022 ,  G10L19/0212

摘要： A downscaled version of an audio decoding procedure may more effectively and/or at improved compliance maintenance be achieved if the synthesis window used for downscaled audio decoding is a downsampled version of a reference synthesis window involved in the non-downscaled audio decoding procedure by downsampling by the downsampling factor by which the downsampled sampling rate and the original sampling rate deviate, and downsampled using a segmental interpolation in segments of 1/4 of the frame length.

公开(公告)号：EP4239632A2

公开(公告)日：2023-09-06

申请号：EP23174593.6

申请日：2016-06-10

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

发明人： SCHNELL, Markus ,  LUTZKY, Manfred ,  FOTOPOULOU, Eleni ,  SCHMIDT, Konstantin ,  BENNDORF, Conrad ,  TOMASEK, Adrian ,  ALBERT, Tobias ,  SEIDL, Timon

IPC分类号： G10L19/02 ,  G10L19/022

摘要： A downscaled version of an audio decoding procedure may more effectively and/or at improved compliance maintenance be achieved if the synthesis window used for downscaled audio decoding is a downsampled version of a reference synthesis window involved in the non-downscaled audio decoding procedure by downsampling by the downsampling factor by which the downsampled sampling rate and the original sampling rate deviate, and downsampled using a segmental interpolation in segments of 1/4 of the frame length.

公开(公告)号：EP4235658A3

公开(公告)日：2023-09-06

申请号：EP23174595.1

申请日：2016-06-10

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

发明人： SCHNELL, Markus ,  LUTZKY, Manfred ,  FOTOPOULOU, Eleni ,  SCHMIDT, Konstantin ,  BENNDORF, Conrad ,  TOMASEK, Adrian ,  ALBERT, Tobias ,  SEIDL, Timon

IPC分类号： G10L19/02 ,  G10L19/022

摘要： A downscaled version of an audio decoding procedure may more effectively and/or at improved compliance maintenance be achieved if the synthesis window used for downscaled audio decoding is a downsampled version of a reference synthesis window involved in the non-downscaled audio decoding procedure by downsampling by the downsampling factor by which the downsampled sampling rate and the original sampling rate deviate, and downsampled using a segmental interpolation in segments of 1/4 of the frame length.