公开(公告)号：EP4439559A2

公开(公告)日：2024-10-02

申请号：EP24194544.3

申请日：2015-07-24

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

发明人： DISCH, Sascha ,  GEIGER, Ralf ,  NIEDERMEIER, Andreas ,  NEUSINGER, Matthias ,  SCHMIDT, Konstantin ,  WILDE, Stephan ,  SCHUBERT, Benjamin ,  NEUKAM, Christian

IPC分类号： G10L21/038

CPC分类号： G10L21/038 ,  G10L19/028

摘要： An apparatus for generating an enhanced signal from an input signal (600), wherein the enhanced signal has spectral values for an enhancement spectral region, the spectral values for the enhancement spectral regions not being contained in the input signal (600), comprises a mapper (602) for mapping a source spectral region of the input signal to a target region in the enhancement spectral region, the source spectral region comprising a noise-filling region (302); and a noise filler (604) configured for generating first noise values for the noise-filling region (302) in the source spectral region of the input signal and for generating second noise values for a noise region in the target region, wherein the second noise values are decorrelated from the first noise values or for generating second noise values for a noise region in the target region, wherein the second noise values are decorrelated from first noise values in the source region.

公开(公告)号：EP4386745A2

公开(公告)日：2024-06-19

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： G10L19/022

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：EP4239633A2

公开(公告)日：2023-09-06

申请号：EP23174596.9

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：EP4235658A2

公开(公告)日：2023-08-30

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： G10L19/022

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：EP3311380A1

公开(公告)日：2018-04-25

申请号：EP16730777.6

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

CPC分类号： G10L19/0212 ,  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：EP3175449A1

公开(公告)日：2017-06-07

申请号：EP15741557.1

申请日：2015-07-24

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

发明人： DISCH, Sascha ,  GEIGER, Ralf ,  NIEDERMEIER, Andreas ,  NEUSINGER, Matthias ,  SCHMIDT, Konstantin ,  WILDE, Stephan ,  SCHUBERT, Benjamin ,  NEUKAM, Christian

IPC分类号： G10L19/028 ,  G10L21/038

CPC分类号： G10L19/028 ,  G10L19/0204 ,  G10L21/038 ,  G10L25/21

摘要： An apparatus for generating an enhanced signal from an input signal (600), wherein the enhanced signal has spectral values for an enhancement spectral region, the spectral values for the enhancement spectral regions not being contained in the input signal (600), comprises a mapper (602) for mapping a source spectral region of the input signal to a target region in the enhancement spectral region, the source spectral region comprising a noise-filling region (302); and a noise filler (604) configured for generating first noise values for the noise-filling region (302) in the source spectral region of the input signal and for generating second noise values for a noise region in the target region, wherein the second noise values are decorrelated from the first noise values or for generating second noise values for a noise region in the target region, wherein the second noise values are decorrelated from first noise values in the source region.

摘要翻译： 在增强的信号从在worin增强的信号输入信号（600）产生一个设备具有增强的光谱区域用于频谱值，不被包含在输入信号（600）增强的频谱区的频谱值包括映射器 （602），用于在增强频谱区域中的输入信号的源光谱区域映射到目标区，在源光谱区域包括噪声填充区域（302）; 并且被配置为产生用于在所述输入信号的源光谱区域的噪声填充区域（302）的第一噪声值，并用于在所述目标区域中的噪声区域中产生第二噪声值，worin第二噪声的噪声填充（604） 值从第一噪声值或用于在所述目标区域中的噪声区域产生第二噪声值，worin第二噪声值从在所述源极区的第一噪声值被去相关去相关。

公开(公告)号：EP3025337A1

公开(公告)日：2016-06-01

申请号：EP14738853.2

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： G10L19/02 ,  G10L21/038

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.

公开(公告)号：EP3008726A1

公开(公告)日：2016-04-20

申请号：EP14729323.7

申请日：2014-06-10

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

发明人： BÄCKSTRÖM, Tom ,  SCHUBERT, Benjamin ,  MULTRUS, Markus ,  DISCH, Sascha ,  SCHMIDT, Konstantin ,  PIETRZYK, Grzegorz

IPC分类号： G10L19/06 ,  G10L19/032 ,  G10L19/03

CPC分类号： G10L19/06 ,  G10L19/0204 ,  G10L19/0208 ,  G10L19/032

摘要： An apparatus for generating an audio signal envelope from one or more coding values is provided. The apparatus includes an input interface for receiving the one or more coding values, and an envelope generator for generating the audio signal envelope depending on the one or more coding values. The envelope generator is configured to generate an aggregation function depending on the one or more coding values, wherein the aggregation function includes a plurality of aggregation points. Furthermore, the envelope generator is configured to generate the audio signal envelope such that the envelope value of each of the envelope points of the audio signal envelope depends on the aggregation value of at least one aggregation point of the aggregation function.

摘要翻译： 提供了用于从一个或多个编码值生成音频信号包络的设备。 该设备包括用于接收一个或多个编码值的输入接口（1610）以及用于根据一个或多个编码值来生成音频信号包络的包络生成器（1620）。 包络生成器（1620）被配置为根据一个或多个编码值生成聚合函数，其中聚合函数包括多个聚合点，其中每个聚合点包括自变量值和聚合值，其中 聚合函数单调增加，并且其中所述一个或更多个编码值中的每一个指示所述聚合函数的聚合点之一的自变量值和聚合值中的至少一个。 此外，包络生成器（1620）被配置为生成音频信号包络，使得音频信号包络包括多个包络点，其中每个包络点包括自变量值和包络值，并且其中包络点 音频信号包络被分配给聚合函数的每个聚合点，使得所述包络点的自变量值等于所述聚合点的自变量值。 此外，包络生成器（1620）被配置为生成音频信号包络，使得音频信号包络的每个包络点的包络值取决于聚合函数的至少一个聚合点的聚合值。

公开(公告)号：EP4386746A3

公开(公告)日：2024-08-14

申请号：EP24165638.8

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：EP4365895A2

公开(公告)日：2024-05-08

申请号：EP24165639.6

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： G10L19/022

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.