公开(公告)号：EP2647221A1

公开(公告)日：2013-10-09

申请号：EP11808175.1

申请日：2011-12-02

申请人： Fraunhofer Gesellschaft zur Förderung der angewandten Wissenschaft E.V. ,  Friedrich-Alexander-Universität Erlangen-Nürnberg

发明人： HERRE, Jürgen ,  KÜCH, Fabian ,  KALLINGER, Markus ,  DEL GALDO, Giovanni ,  GRILL, Bernhard

IPC分类号： H04R1/40 ,  H04R3/00

摘要： An apparatus for capturing audio information from a target location includes first and second beamformers arranged in a recording environment and having first and second recording characteristics, respectively, and a signal generator. The first and second beamformers are configured for recording first and second beamformer audio signals, respectively, when they are directed towards the target location with respect to the first and second recording characteristics. The first and second beamformers are arranged such that first and second virtual straight lines, defined to pass through the first and second beamformers, respectively, and the target location, are not mutually parallel. The signal generator is configured to generate an audio output signal based on the first and second beamformer audio signals so that the audio output signal reflects relatively more audio information from the target location compared to the audio information from the target location in the first and second beamformer audio signals.

公开(公告)号：EP2543037A1

公开(公告)日：2013-01-09

申请号：EP11708299.0

申请日：2011-03-16

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

发明人： THIERGART, Oliver ,  KÜCH, Fabian ,  SCHULTZ-AMLING, Richard ,  KALLINGER, Markus ,  DEL GALDO, Giovanni ,  KUNTZ, Achim ,  MAHNE, Dirk ,  PULKKI, Ville ,  LAITINEN, Mikko-Ville

IPC分类号： G10L19/00

CPC分类号： H04S7/301 ,  G10L19/008 ,  G10L19/0204 ,  G10L19/025 ,  G10L21/0232 ,  H04S2420/03

摘要： A spatial audio processor for providing spatial parameters based on an acoustic input signal comprises a signal characteristics determiner and a controllable parameter estimator. The signal characteristics determiner is configured to determine a signal characteristic of the acoustic input signal. The controllable parameter estimator for calculating the spatial parameters for the acoustic input signal in accordance with a variable spatial parameter calculation rule is configured to modify the variable spatial parameter calculation rule in accordance with the determined signal characteristic.

公开(公告)号：EP2543037B1

公开(公告)日：2014-03-05

申请号：EP11708299.0

申请日：2011-03-16

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

发明人： THIERGART, Oliver ,  KÜCH, Fabian ,  SCHULTZ-AMLING, Richard ,  KALLINGER, Markus ,  DEL GALDO, Giovanni ,  KUNTZ, Achim ,  MAHNE, Dirk ,  PULKKI, Ville ,  LAITINEN, Mikko-Ville

IPC分类号： G10L19/008

CPC分类号： H04S7/301 ,  G10L19/008 ,  G10L19/0204 ,  G10L19/025 ,  G10L21/0232 ,  H04S2420/03

摘要： A spatial audio processor for providing spatial parameters based on an acoustic input signal comprises a signal characteristics determiner and a controllable parameter estimator. The signal characteristics determiner is configured to determine a signal characteristic of the acoustic input signal. The controllable parameter estimator for calculating the spatial parameters for the acoustic input signal in accordance with a variable spatial parameter calculation rule is configured to modify the variable spatial parameter calculation rule in accordance with the determined signal characteristic.

摘要翻译： 空间音频处理器，用于在包括提供基于声输入信号的空间参数的信号特性确定器和可控参数估计。 的信号特性确定器被配置为确定矿声输入信号的信号特征。 用于计算空间参数在雅舞蹈具有可变空间参数的计算规则的声输入信号的可控参数估计器被配置为修改雅舞蹈可变空间参数的计算规则与确定性开采信号特性。

公开(公告)号：EP2606371A1

公开(公告)日：2013-06-26

申请号：EP11748365.1

申请日：2011-08-23

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

发明人： KALLINGER, Markus ,  DEL GALDO, Giovanni ,  KÜCH, Fabian ,  THIERGART, Oliver ,  MAHNE, Dirk ,  KUNTZ, Achim ,  SCHULTZ-AMLING, Richard

IPC分类号： G01S3/802 ,  H04R3/00

CPC分类号： G01S3/802

摘要： An apparatus (100) for resolving an ambiguity from a DOA estimate (105) (φ̂
amb ) comprises a DOA estimate analyzer (110) for analyzing the DOA estimate (105) (φ̂
amb ) to obtain a plurality (115) of ambiguous analysis parameters (φ̃
I ...φ̃
N ; f(φ̃
I )...f(φ̃
N ); f
enh,I (φ̂
amb )....; f
enh,N (φ̂
amb ); g
p (φ̃
I )...g
p (φ̃
N ); D(φ̃
I )...D(φ̃
N )) by using a bias information (101), the bias information (101) representing a relation (φ̂ φ) between a biased (φ̂) and an unbiased DOA estimate (φ), and an ambiguity resolver (120) for resolving the ambiguity in the plurality (115) of ambiguous analysis parameters (φ̃
I ...φ̃
N ; f(φ̃
I )...f(φ̃
N ); f
enh,I (φ̂
amb )....; f
enh,N (φ̂
amb ); g
p (φ̃
I )...g
p (φ̃
N ); D(φ̃
I )...D(φ̃
N )) to obtain a non-ambiguous resolved parameter (φ̃
res ; f
res , 125).

公开(公告)号：EP2647222A1

公开(公告)日：2013-10-09

申请号：EP11801647.6

申请日：2011-12-02

申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung ,  Friedrich-Alexander-Universität Erlangen-Nürnberg

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： H04R3/00 ,  G10L19/00

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.