公开(公告)号：EP4407612A1

公开(公告)日：2024-07-31

申请号：EP24167801.0

申请日：2009-06-25

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

发明人： RETTELBACH, Nikolaus ,  FUCHS, Guillaume ,  GEYERSBERGER, Stefan ,  GRILL, Bernhard ,  HIRSCHFELD, Jens ,  HERRE, Jürgen ,  MULTRUS, Markus ,  POPP, Harald ,  SCHULLER, Gerald ,  WABNIK, Stefan

IPC分类号： G10L19/028 ,  G10L19/02 ,  G10L19/032

CPC分类号： G10L19/02 ,  G10L19/028 ,  G10L19/032

摘要： An encoder for providing an audio stream on the basis of a transform-domain representation of an input audio signal comprises a quantization error calculator configured to determine a multi-band quantization error over a plurality of frequency bands of the input audio signal for which separate band gain information is available. The encoder also comprises an audio stream provider configured to provide the audio stream such that the audio stream comprises an information describing an audio content of the frequency bands and an information describing the multi-band quantization error.
A decoder for providing a decoded representation of an audio signal on the basis of an encoded audio stream representing spectral components of frequency bands of the audio signal comprises a noise filler configured to introduce noise into spectral components of a plurality of frequency bands to which separate frequency band gain information is associated on the basis of a common multi-band noise intensity value.

公开(公告)号：EP4372745A1

公开(公告)日：2024-05-22

申请号：EP24167780.6

申请日：2009-06-25

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

发明人： RETTELBACH, Nikolaus ,  FUCHS, Guillaume ,  GEYERSBERGER, Stefan ,  GRILL, Bernhard ,  HIRSCHFELD, Jens ,  HERRE, Jürgen ,  MULTRUS, Markus ,  POPP, Harald ,  SCHULLER, Gerald ,  WABNIK, Stefan

IPC分类号： G10L19/028 ,  G10L19/02 ,  G10L19/032

CPC分类号： G10L19/02 ,  G10L19/028 ,  G10L19/032

摘要： An encoder for providing an audio stream on the basis of a transform-domain representation of an input audio signal comprises a quantization error calculator configured to determine a multi-band quantization error over a plurality of frequency bands of the input audio signal for which separate band gain information is available. The encoder also comprises an audio stream provider configured to provide the audio stream such that the audio stream comprises an information describing an audio content of the frequency bands and an information describing the multi-band quantization error.
A decoder for providing a decoded representation of an audio signal on the basis of an encoded audio stream representing spectral components of frequency bands of the audio signal comprises a noise filler configured to introduce noise into spectral components of a plurality of frequency bands to which separate frequency band gain information is associated on the basis of a common multi-band noise intensity value.

公开(公告)号：EP2708042A1

公开(公告)日：2014-03-19

申请号：EP12720155.6

申请日：2012-05-08

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

发明人： WALTHER, Andreas ,  SILZLE, Andreas ,  HELLMUTH, Oliver ,  GRILL, Bernhard ,  POPP, Harald

IPC分类号： H04S3/00

CPC分类号： H04S3/006 ,  H04S3/008

摘要： An apparatus for generating an output signal having at least two output channels from an input signal having at least two input channels. The apparatus comprises an ambient/direct decomposer (110; 210; 310; 410; 610), an ambient modification unit (120; 220; 320; 420) and a combination unit (130; 230; 330; 430). The ambient/direct decomposer (110; 210; 310; 410; 610) is adapted to decompose at least two input channels of the input signal such that each one of the at least two input channels is decomposed into a signal of a first signal group and into a signal of a second signal group. The ambient modification unit (120; 220; 320, 420) is adapted to modify a signal of the ambient signal group or a signal derived from a signal of the ambient signal group to obtain a modified signal as a first output channel. The combination unit (130; 230; 330; 430) is adapted to combine a signal of the ambient signal group or a signal derived from a signal of the ambient signal group and a signal of the direct, signal group or a signal derived from a signal of the direct signal group as a second output channel.

摘要翻译： 在具有从输入的至少两个输出通道具有至少两个输入通道的信号的输出信号生成装置。 在环境修改单元，该装置包括在环境/直接分解（610 110; 210; 310; 410）（120; 220; 320; 420）和一个组合单元（130; 230; 330; 430）。 （110; 210; 310; 410; 610）的环境/直接分解是angepasst分解输入信号搜索中的至少两个输入通道并在所述至少两个输入通道中的每一个被分解为第一信号组的信号 并进入第二信号组的信号。 环境修改单元（120; 220; 320，420）适于修改所述环境信号组的信号或从该环境信号组的信号导出，以获得修改的信号作为第一输出信道的信号。 组合单元（130; 230; 330; 430）是angepasst于环境信号组的信号，或者根据从导出的环境信号组的信号和直接，信号组的信号或信号导出的信号组合 该直接信号组作为第二输出信道的信号。

公开(公告)号：EP1763870B1

公开(公告)日：2014-03-05

申请号：EP05782459.1

申请日：2005-08-29

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

发明人： HERRE, Jürgen ,  SPERSCHNEIDER, Ralph ,  HILPERT, Johannes ,  LINZMEIER, Karsten ,  POPP, Harald

IPC分类号： G10L19/008 ,  H04S3/00

CPC分类号： G10L19/008 ,  H04S3/008

公开(公告)号：EP2659485A1

公开(公告)日：2013-11-06

申请号：EP12700279.8

申请日：2012-01-11

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

发明人： UHLE, Christian ,  HERRE, Jürgen ,  POPP, Harald ,  RIDDERBUSCH, Falko

IPC分类号： G10L15/26 ,  H04H60/04 ,  G10L15/22 ,  G06F9/44

CPC分类号： H04R3/00 ,  G10L15/22 ,  H04H60/04

摘要： An audio mixer for mixing a plurality of audio tracks to a mixture signal comprises a semantic command interpreter (30; 35) for receiving a semantic mixing command and for deriving a plurality of mixing parameters for the plurality of audio tracks from the semantic mixing command; an audio track processor (70; 75) for processing the plurality of audio tracks in accordance with the plurality of mixing parameters; and an audio track combiner (76) for combining the plurality of audio tracks processed by the audio track processor into the mixture signal (MS). A corresponding method comprises: receiving a semantic mixing command; deriving a plurality of mixing parameters for the plurality of audio tracks from the semantic mixing command; processing the plurality of audio tracks in accordance with the plurality of mixing parameters; and combining the plurality of audio tracks resulting from the processing of the plurality of audio tracks to form the mixture signal.

公开(公告)号：EP2370189A2

公开(公告)日：2011-10-05

申请号：EP09752113.2

申请日：2009-10-30

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

发明人： KRAEGELOH, Stefan ,  POPP, Harald ,  BERNHARD, Josef ,  FUCHS, Harald ,  GAYER, Marc ,  LUTZKY, Manfred ,  SPORER, Thomas ,  BRIX, Sandra

IPC分类号： A63F3/02 ,  A63F3/00

CPC分类号： B65G51/03 ,  A63F3/00 ,  A63F3/00697 ,  A63F3/02 ,  A63F7/3603 ,  A63F2009/0087 ,  A63H18/002

摘要： The idea underlying the present invention is that when the position of an object (10) on a surface is determined it is also possible to use transport devices for the transport of the object on the surface, said devices resulting in fewer reproducible transport movements, since the control is carried out directly based on the observed movement in relation to the desired movement. Working examples relate to the use of compressed air, magnetization and/or flexural waves.

公开(公告)号：EP2174519A1

公开(公告)日：2010-04-14

申请号：EP08758594.9

申请日：2008-05-16

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

发明人： NEUGEBAUER, Bernhard ,  PLOGSTIES, Jan ,  POPP, Harald

IPC分类号： H04S1/00 ,  H04S7/00

CPC分类号： H04S1/005 ,  H04S7/30

摘要： A stereo signal with enhanced perceptual quality using a mid-signal and a side-signal, can be generated, when a enhanced side signal is created prior to the upmix of the stereo signal. A decorrelated representation of at least a portion of the sum signal and/or a decorrelated representation of at least a portion of the side-signal is generated. The enhanced side-signal is generated combining a representation of the side-signal with the decorrelated representation of the portion of the mid signal, with the decorrelated representation of the side-signal and the decorrelated representation of the portion of the mid-signal or with the portion of the mid-signal and the decorrelated representation of the portion of the side-signal. The stereo signal with enhanced perceptual quality is created using a representation of the mid-signal and the enhanced side-signal.

公开(公告)号：EP2304719B1

公开(公告)日：2017-07-26

申请号：EP09776839.4

申请日：2009-06-25

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

发明人： RETTELBACH, Nikolaus ,  GRILL, Bernhard ,  FUCHS, Guillaume ,  GEYERSBERGER, Stefan ,  MULTRUS, Markus ,  POPP, Harald ,  HERRE, Juergen ,  WABNIK, Stefan ,  SCHULLER, Gerald ,  HIRSCHFELD, Jens

IPC分类号： G10L19/028 ,  G10L19/02 ,  G10L19/032 ,  G10L25/18

CPC分类号： G10L19/035 ,  G10L19/008 ,  G10L19/02 ,  G10L19/0204 ,  G10L19/028 ,  G10L19/032 ,  G10L25/18

公开(公告)号：EP2392004B1

公开(公告)日：2015-12-30

申请号：EP10700048.1

申请日：2010-01-05

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

发明人： NAGEL, Frederik ,  WALTHER, Andreas ,  FUCHS, Guillaume ,  LECOMTE, Jérémie ,  POPP, Harald ,  WIK, Tilo

IPC分类号： G10L19/025 ,  G10L21/04

CPC分类号： G10L21/04 ,  G10L19/025 ,  G10L19/028

公开(公告)号：EP2301028B1

公开(公告)日：2012-12-05

申请号：EP09776811.3

申请日：2009-06-23

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

发明人： NEUENDORF, Max ,  GRILL, Bernhard ,  KRAEMER, Ulrich ,  MULTRUS, Markus ,  POPP, Harald ,  RETTELBACH, Nikolaus ,  NAGEL, Frederik ,  LOHWASSER, Markus ,  GAYER, Marc ,  JANDER, Manuel ,  BACIGALUPO, Virgilio

IPC分类号： G10L21/02 ,  G10L19/02

CPC分类号： G10L21/038 ,  G10L19/0208 ,  G10L19/025 ,  G10L19/20