公开(公告)号：EP2883225B1

公开(公告)日：2017-06-07

申请号：EP13716016.4

申请日：2013-04-16

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

发明人： KASTNER, Thorsten ,  HERRE, Jürgen ,  PAULUS, Jouni ,  TERENTIV, Leon ,  HELLMUTH, Oliver ,  FUCHS, Harald

IPC分类号： G10L19/008

CPC分类号： G10L19/008

公开(公告)号：EP1829026B1

公开(公告)日：2017-01-25

申请号：EP05796746.5

申请日：2005-09-30

申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. ,  Agere Systems, Inc.

发明人： HERRE, Jürgen ,  FALLER, Christof

IPC分类号： G10L19/008

CPC分类号： G10L19/008

公开(公告)号：EP3025329A1

公开(公告)日：2016-06-01

申请号：EP14739196.5

申请日：2014-07-16

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

发明人： ADAMI, Alexander ,  BORSS, Christian ,  DICK, Sascha ,  ERTEL, Christian ,  FÜG, Simone ,  HERRE, Jürgen ,  HILPERT, Johannes ,  HÖLZER, Andreas ,  KRATSCHMER, Michael ,  KÜCH, Fabian ,  KUNTZ, Achim ,  MURTAZA, Adrian ,  PLOGSTIES, Jan ,  SILZLE, Andreas ,  STENZEL, Hanne

IPC分类号： G10L19/008

CPC分类号： G10L19/20 ,  G10L19/008 ,  G10L19/028 ,  G10L19/18 ,  G10L19/22 ,  H04S3/008 ,  H04S2400/03 ,  H04S2400/11

摘要： Audio encoder for encoding audio input data (101) to obtain audio output data (501) comprises an input interface (100) for receiving a plurality of audio channels, a plurality of audio objects and metadata related to one or more of the plurality of audio objects; a mixer (200) for mixing the plurality of objects and the plurality of channels to obtain a plurality of pre-mixed channels, each pre-mixed channel comprising audio data of a channel and audio data of at least one object; a core encoder (300) for core encoding core encoder input data; and a metadata compressor (400) for compressing the metadata related to the one or more of the plurality of audio objects, wherein the audio encoder is configured to operate in at least one mode of the group of two modes comprising a first mode, in which the core encoder is configured to encode the plurality of audio channels and the plurality of audio objects received by the input interface as core encoder input data, and a second mode, in which the core encoder (300) is configured for receiving, as the core encoder input data, the plurality of pre-mixed channels generated by the mixer (200).

公开(公告)号：EP3022949A1

公开(公告)日：2016-05-25

申请号：EP14739483.7

申请日：2014-07-17

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

发明人： DISCH, Sascha ,  FUCHS, Harald ,  HELLMUTH, Oliver ,  HERRE, Jürgen ,  MURTAZA, Adrian ,  PAULUS, Jouni ,  RIDDERBUSCH, Falko ,  TERENTIV, Leon

IPC分类号： H04S3/00 ,  G10L19/008

CPC分类号： G10L19/008 ,  H04S3/008 ,  H04S3/02 ,  H04S2400/03 ,  H04S2400/11 ,  H04S2420/03

摘要： A multi-channel audio decoder for providing at least two output audio signals on the basis of an encoded representation is configured to render a plurality of decoded audio signals, which are obtained on the basis of the encoded representation, in dependence on one or more rendering parameters, to obtain a plurality of rendered audio signals. The multichannel audio decoder is configured to derive one or more decorrelated audio signals from the rendered audio signals, and to combine the rendered audio signals, or a scaled version thereof, with the one or more decorrelated audio signals, to obtain the output audio signals. A multi-channel audio encoder provides a decorrelation method parameter to control an audio decoder.

摘要翻译： 用于编码表示的基础上，提供至少两个输出音频信号的多声道音频解码器被配置以使解码的音频信号，它们是在依赖一种或多种呈现编码表示的基础上获得的多元 参数，以获得再现的音频信号的复数。 该多通道音频解码器被配置为从所呈现的音频信号导出的一个或多个解相关的音频信号，并且向呈现的音频信号，或缩放版本及其结合，与所述一个或更多个解相关的音频信号，以获得输出音频 信号。 一种多通道音频编码器提供去相关方法的参数来控制音频解码器。

公开(公告)号：EP2948946A1

公开(公告)日：2015-12-02

申请号：EP14700929.4

申请日：2014-01-20

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

发明人： KASTNER, Thorsten ,  HERRE, Jürgen ,  RIDDERBUSCH, Falko ,  FALCH, Cornelia

IPC分类号： G10L19/008 ,  H04S3/00

CPC分类号： G10L19/008 ,  H04S2400/11 ,  H04S2420/03

摘要： An apparatus for encoding one or more audio objects to obtain an encoded signal is provided. The apparatus comprises a downmixer (110) for downmixing the one or more audio objects to obtain one or more unprocessed downmix signals. Moreover, the apparatus comprises a processing module (120) for processing the one or more unprocessed downmix signals to obtain one or more processed downmix signals. Furthermore, the apparatus comprises a signal calculator (130) for calculating one or more additional signals, wherein the signal calculator (130) is configured to calculate each of the one or more additional signals based on a difference between one of the one or more processed downmix signals and one of the one or more unprocessed downmix signals. Moreover, the apparatus comprises an object information generator (140) for generating parametric audio object information for the one or more audio objects and additional parametric information for the additional signal. Furthermore, the apparatus comprises an output interface (150) for outputting the encoded signal, the encoded signal comprising the parametric audio object information for the one or more audio objects and the additional parametric information for the one or more additional signals. Moreover, a corresponding apparatus for decoding is provided.

公开(公告)号：EP2883225A1

公开(公告)日：2015-06-17

申请号：EP13716016.4

申请日：2013-04-16

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

发明人： KASTNER, Thorsten ,  HERRE, Jürgen ,  PAULUS, Jouni ,  TERENTIV, Leon ,  HELLMUTH, Oliver ,  FUCHS, Harald

IPC分类号： G10L19/008

CPC分类号： G10L19/008

摘要： A decoder is provided. The decoder comprises a parametric decoding unit (110) for generating a plurality of first estimated audio object signals by upmixing three or more downmix signals, wherein the three or more downmix signals encode a plurality of original audio object signals, wherein the parametric decoding unit (110) is configured to upmix the three or more downmix signals depending on parametric side information indicating information on the plurality of original audio object signals. Moreover, the decoder comprises a residual processing unit (120) for generating a plurality of second estimated audio object signals by modifying one or more of the first estimated audio object signals, wherein the residual processing unit (120) is configured to modify said one or more of the first estimated audio object signals depending on one or more residual signals.

公开(公告)号：EP2880653A1

公开(公告)日：2015-06-10

申请号：EP13745103.5

申请日：2013-08-05

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

发明人： KASTNER, Thorsten ,  HERRE, Jürgen ,  TERENTIV, Leon ,  HELLMUTH, Oliver

IPC分类号： G10L19/008

CPC分类号： G10L19/008 ,  H04S2400/03

摘要： A decoder for generating an audio output signal comprising one or more audio output Channels from a downmix signal comprising three or more downmix Channels, wherein the downmix signal encodes three or more audio object Signals is provided. The decoder comprises an input Channel router (110) for receiving the three or more downmix Channels and for receiving side information, and at least two Channel processing units (121, 122) for generating at least two processed Channels to obtain the one or more audio output Channels. The input Channel router (110) is configured to feed each of at least two of the three or more downmix Channels into at least one of the at least two Channel processing units (121, 122), so that each of the at least two Channel processing units receives one or more of the three or more downmix Channels, and so that each of the at least two Channel processing units (121, 122) receives less than the total number of the three or more downmix Channels. Each Channel processing unit of the at least two Channel processing units (121, 122) is configured to generate one or more of the at least two processed Channels depending on the side information and depending on said one or more of the at least two of the three or more downmix Channels received by said Channel processing unit from the input Channel router.

摘要翻译： 一种用于在音频输出信号产生具有从具有三个或更多个降混声道的降混信号的一个或多个音频输出声道解码器，所述下混合信号进行编码worin提供三个或更多个音频对象信号。 该解码器包括在输入信道路由器和至少两个信道处理单元。 所述至少两个信道处理单元中的每一个信道处理单元被配置为生成一个或多个的至少两个处理的信道相依的边信息，并根据一个或多个从由所述信道处理单元接收到的三个或更多个下混声道中的 输入通道路由器。

公开(公告)号：EP2210427B1

公开(公告)日：2015-05-06

申请号：EP08734783.7

申请日：2008-03-26

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

发明人： UHLE, Christian ,  HERRE, Jürgen ,  GEYERSBERGER, Stefan ,  RIDDERBUSCH, Falko ,  WALTER, Andreas ,  MOSER, Oliver

IPC分类号： H04S5/00

CPC分类号： H04R5/04

公开(公告)号：EP2831871A1

公开(公告)日：2015-02-04

申请号：EP13726121.0

申请日：2013-03-25

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

发明人： UHLE, Christian ,  HERRE, Jürgen ,  WALTHER, Andreas ,  FLEISCHMANN, Felix ,  GAMPP, Patrick

IPC分类号： G10K11/178

CPC分类号： H04R3/002 ,  G10K11/178 ,  G10K2210/1081 ,  G10K2210/3014 ,  G10K2210/509 ,  H04R2460/01

摘要： An apparatus for improving a perceived quality of sound reproduction of an audio output signal is provided. The apparatus comprises an active noise cancellation unit (110) for generating a noise cancellation signal based on an environmental audio signal, wherein the environmental audio signal comprises noise signal portions, the noise signal portions resulting from recording environmental noise. Moreover, the apparatus comprises a residual noise characteristics estimator (120) for determining a residual noise characteristic depending on the environmental noise and the noise cancellation signal. Furthermore, the apparatus comprises a perceptual noise compensation unit (130) for generating a noise-compensated signal based on an audio target signal and based on the residual noise characteristic. Moreover, the apparatus comprises a combiner (140) for combining the noise cancellation signal and the noise- compensated signal to obtain the audio output signal.

摘要翻译： 提供了一种用于改进的音频输出信号的声音再现的感知质量的装置。 有源噪声消除单元（110），用于产生在环境音频信号基于噪声消除信号，worin环境音频信号的设备包括：包括噪声信号部分，所述噪声信号部分从记录环境噪声引起。 更上方，该装置包括一个残留噪声特性估计器（120），用于确定的采矿残余噪声特性根据环境噪声和所述噪声消除信号。 进一步，该装置包括一个感知噪声补偿单元（130），用于基于音频对象的信号，基于所述残留噪声特性的噪声补偿的信号。 更上方，该装置包括用于将所述噪声消除信号和所述噪声补偿的信号，以获得所述音频输出信号的组合器（140）。

公开(公告)号：EP2647222B1

公开(公告)日：2014-10-29

申请号：EP11801647.6

申请日：2011-12-02

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

发明人： HERRE, Jürgen ,  KÜCH, Fabian ,  KALLINGER, Markus ,  DEL GALDO, Giovanni ,  THIERGART, Oliver ,  MAHNE, Dirk ,  KUNTZ, Achim ,  KRATSCHMER, Michael ,  CRACIUN, Alexandra

IPC分类号： G10L19/02 ,  G10L19/00 ,  H04R1/32 ,  H04R3/00 ,  G10L19/20 ,  G10L19/16 ,  G10L19/008

CPC分类号： G10L19/00 ,  G10L19/008 ,  G10L19/02 ,  G10L19/167 ,  G10L19/20 ,  H04R1/326 ,  H04R3/005 ,  H04R2430/21

摘要： An apparatus for generating an audio output signal to simulate a recording of a virtual microphone at a configurable virtual position in an environment includes a sound events position estimator and an information computation module. The former is adapted to estimate a sound source position indicating a position of a sound source in the environment, wherein the sound events position estimator is adapted to estimate the sound source position based on first and second direction information provided by first and second real spatial microphones, respectively, located at first and second real microphone positions in the environment, respectively. The information computation module is adapted to generate the audio output signal based on a first recorded audio input signal, on the first real microphone position, on the virtual position of the virtual microphone, and on the sound source position.