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1. 发明公开

EP2346028A1 An apparatus and a method for converting a first parametric spatial audio signal into a second parametric spatial audio signal 审中-公开
标题翻译：的设备和方法的第一参数间隔的音频信号转换成参数化间隔开的第二音频信号
公开(公告)号：EP2346028A1
公开(公告)日：2011-07-20
申请号：EP10156263.5
申请日：2010-03-11
申请人： Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V.
发明人： Schultz-Amling, Richard , Küch, Fabian , Kallinger, Markus , Del Galdo, Giovanni , Thiergart, Oliver , Mahne, Dirk , Kuntz, Achim
IPC分类号： G10L19/00 , H04S7/00 , H04N5/60
CPC分类号： G10L19/173 , G10L19/008 , G10L25/03 , G10L25/48 , H04N5/232 , H04N5/782 , H04S1/007 , H04S3/008 , H04S7/302 , H04S2400/11 , H04S2400/15 , H04S2420/03
摘要： An apparatus (300) for converting a first parametric spatial audio signal representing a first listening position or a first listening orientation in a spatial audio scene to a second parametric spatial audio signal (112, 114) representing a second listening position or a second listening orientation is described, the apparatus comprising: a spatial audio signal modification unit (301, 302) adapted to modify the first parametric spatial audio signal (212, 214) dependent on a change of the first listening position or the first listening orientation so as to obtain the second parametric spatial audio signal (212, 214), wherein the second listening position or the second listening orientation corresponds to the first listening position or the first listening orientation changed by the change.
摘要翻译：用于将表示在空间音频场景的第一收听位置或第一收听定向表示第二收听位置或第二收听取向的第二参数空间音频信号（112，114）的第一参数空间音频信号的装置（300）进行了说明，该设备包括：空间音频信号修改单元（301，302）angepasst修改所述第一参数空间音频信号（212，214）取决于所述第一收听位置的变化或所述第一收听取向，以便获得 worin第二收听位置或第二收听取向所述第二参数空间音频信号（212，214）对应于第一收听位置或所述第一收听由取向的变化而变化。

2. 发明公开

EP2249334A1 Audio format transcoder 审中-公开
标题翻译： AudioFormat的-Transkodierer
公开(公告)号：EP2249334A1
公开(公告)日：2010-11-10
申请号：EP09006291.0
申请日：2009-05-08
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
发明人： Thiergart, Oliver , Falch, Cornelia , Kuech, Fabian , Del Galdo, Giovanni , Herre, Juergen , Kallinger, Markus
IPC分类号： G10L19/00 , G10L21/02
CPC分类号： G10L21/0272 , G10L19/008
摘要： An audio format transcoder (100) for transcoding an input audio signal, the input audio signal having at least two directional audio components. The audio format transcoder (100) comprising a converter (110) for converting the input audio signal into a converted signal, the converted signal having a converted signal representation and a converted signal direction of arrival. The audio format transcoder (100) further comprises a position provider (120) for providing at least two spatial positions of at least two spatial audio sources and a processor (130) for processing the converted signal representation based on the at least two spatial positions to obtain at least two separated audio source measures.
摘要翻译：一种用于对输入音频信号进行代码转换的音频格式转码器（100），所述输入音频信号具有至少两个方向音频分量。音频格式转码器（100）包括用于将输入音频信号转换为转换信号的转换器（110），该转换信号具有转换的信号表示和转换的信号到达方向。音频格式转码器（100）还包括用于提供至少两个空间音频源的至少两个空间位置的位置提供器（120）和用于基于至少两个空间位置处理转换后的信号表示的处理器（130）获取至少两个独立的音频源测量。

3. 发明公开

EP2448289A1 Apparatus and method for deriving a directional information and computer program product 审中-公开
标题翻译： Vorrichtung und Verfahren zur Ableitung einer direktionalen Information and Systeme
公开(公告)号：EP2448289A1
公开(公告)日：2012-05-02
申请号：EP11166916.4
申请日：2011-05-20
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
发明人： Küch, Fabian , Del Galdo, Giovanni , Thiergart, Oliver , Pulkki, Ville , Ahonen, Jukka
IPC分类号： H04R3/00
CPC分类号： H04R3/005 , H04S2400/15 , H04S2420/05
摘要： An apparatus for deriving a directional information from a plurality of microphone signals or from a plurality of components of a microphone signal, wherein different effective microphone look directions are associated with the microphone signals or components, comprises a combiner configured to obtain a magnitude value from a microphone signal or a component of the microphone signal. The combiner is further configured to combine direction information items describing the effective microphone look directions, such that a direction information item describing a given effective microphone look direction is weighted in dependence on the magnitude value of the microphone signal, or of the component of the microphone signal, associated with the given effective microphone look direction, to derive the directional information.
摘要翻译：一种用于从多个麦克风信号或麦克风信号的多个分量导出定向信息的设备，其中不同的有效麦克风观看方向与麦克风信号或组件相关联，包括组合器，其被配置为从麦克风信号或麦克风信号的分量。组合器还被配置为组合描述有效麦克风外观方向的方向信息项，使得描述给定有效麦克风外观方向的方向信息项根据麦克风信号的幅度值或麦克风的分量加权信号，与给定的有效麦克风查看方向相关联，以导出方向信息。

4. 发明公开

EP2423702A1 Apparatus and method for resolving ambiguity from a direction of arrival estimate 审中-公开
标题翻译：装置和方法的到来方向估算的模糊的分辨率
公开(公告)号：EP2423702A1
公开(公告)日：2012-02-29
申请号：EP10192238.3
申请日：2010-11-23
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung 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).
摘要翻译：用于从DOA估计（105）（O AMB）模糊度的解析的装置（100）包括一个DOA估计分析器（110），用于分析暧昧分析的DOA估计（105）（O AMB）以获得多个（115）参数（○○... I N F（O I）... F（0ñ）; F ENH，I（ÕAMB）... F ENH，N（O AMB）; GP（O i）中。 ..G P（O N）; D（O I）... D（ÕN））通过使用表示一个偏置之间的关系（Õ†“O）A偏置信息（101），所述偏置信息（101）（O）和用于暧昧分析参数对所述多个（115）解决歧义无偏DOA（O），以及不确定性求解（120）的估计值（○○1 ... N F（0 I）... F（0ñ）; F ENH，I（ÕAMB）... F ENH，N（O AMB）; GP（O I）...克P（O N）; D（O I）.... D （ÕN）），以获得非模糊分辨参数（RES O;˚FRES，125）。

5. 发明公开

EP2375779A3 Apparatus and method for measuring a plurality of loudspeakers and microphone array 审中-公开
标题翻译：装置和方法，用于测量多个扬声器和麦克风布置
公开(公告)号：EP2375779A3
公开(公告)日：2012-01-18
申请号：EP10159914.0
申请日：2010-04-14
申请人： Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V.
发明人： Silzle, Andreas , Thiergart, Oliver , Del Galdo, Giovanni , Lang, Matthias
IPC分类号： H04R5/04 , H04R29/00
CPC分类号： H04R29/002 , H04R1/02 , H04R1/08 , H04R1/406 , H04R3/005 , H04R5/027 , H04R2201/02 , H04R2201/401 , H04R2420/05 , H04R2430/21 , H04S7/301 , H04S2400/03 , H04S2400/15 , H04S2420/03
摘要： An apparatus for measuring a plurality of loudspeakers arranged at different positions comprises: a test signal generator (10) for generating a test signal for a loudspeaker; a microphone device (12) being configured for receiving a plurality of different sound signals in response to one or more loudspeaker signals emitted by a loudspeaker of the plurality of loudspeakers in response to the test signal; a controller (14) for controlling emissions of the loudspeaker signals by the plurality of loudspeakers and for handling the plurality of different sound signals so that a set of sound signals recorded by the microphone device is associated with each loudspeaker of the plurality of loudspeakers in response to the test signal; and an evaluator (16) for evaluating the set of sound signals for each loudspeaker to determine at least one loudspeaker characteristic for each loudspeaker and for indicating a loudspeaker state using the at least one loudspeaker characteristic for the loudspeaker. This scheme allows an automatic, efficient and accurate measurement of loudspeakers arranged in a three-dimensional configuration.

6. 发明授权

EP2375410B1 A spatial audio processor and a method for providing spatial parameters based on an acoustic input signal 有权转让
标题翻译：空间音频处理器和用于基于声学输入信号提供空间参数的方法
公开(公告)号：EP2375410B1
公开(公告)日：2017-11-22
申请号：EP10186808.1
申请日：2010-10-07
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
发明人： Thiergart, Oliver , Kuech, 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.

7. 发明公开

EP2731353A3 Apparatus and method for measuring a plurality of loudspeakers 有权
标题翻译：装置和方法，用于测量多个扬声器
公开(公告)号：EP2731353A3
公开(公告)日：2014-07-30
申请号：EP13197826.4
申请日：2011-03-30
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
发明人： Silzle, Andreas , Thiergart, Oliver , Del Galdo, Giovanni , Lang, Matthias
IPC分类号： H04R5/04 , H04R29/00 , H04R1/40 , H04R5/027
CPC分类号： H04R29/002 , H04R1/02 , H04R1/08 , H04R1/406 , H04R3/005 , H04R5/027 , H04R2201/02 , H04R2201/401 , H04R2420/05 , H04R2430/21 , H04S7/301 , H04S2400/03 , H04S2400/15 , H04S2420/03
摘要： An apparatus for measuring a plurality of loudspeakers arranged at different positions comprises: a test signal generator (10) for generating a test signal for a loudspeaker; a microphone device (12) being configured for receiving a plurality of different sound signals in response to one or more loudspeaker signals emitted by a loudspeaker of the plurality of loudspeakers in response to the test signal; a controller (14) for controlling emissions of the loudspeaker signals by the plurality of loudspeakers and for handling the plurality of different sound signals so that a set of sound signals recorded by the microphone device is associated with each loudspeaker of the plurality of loudspeakers in response to the test signal; and an evaluator (16) for evaluating the set of sound signals for each loudspeaker to determine at least one loudspeaker characteristic for each loudspeaker and for indicating a loudspeaker state using the at least one loudspeaker characteristic for the loudspeaker. This scheme allows an automatic, efficient and accurate measurement of loudspeakers arranged in a three-dimensional configuration.

8. 发明公开

EP2942982A1 System, apparatus and method for consistent acoustic scene reproduction based on informed spatial filtering 审中-公开
标题翻译：基于空间滤波的声学场景一致的再现系统，装置和方法通知
公开(公告)号：EP2942982A1
公开(公告)日：2015-11-11
申请号：EP14183855.7
申请日：2014-09-05
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. , Friedrich-Alexander-Universität Erlangen-Nürnberg
发明人： Habets, Emanuel , Thiergart, Oliver , Kowalczyk, Konrad
IPC分类号： H04S7/00 , H04R25/00
CPC分类号： H04S5/005 , G10L19/008 , H04R25/407 , H04R25/552 , H04S7/30 , H04S7/303 , H04S7/307 , H04S2400/11 , H04S2400/13 , H04S2400/15
摘要： A system for generating one or more audio output signals is provided. The system comprises a decomposition module (101), a signal processor (105), and an output interface (106). The decomposition module (101) is configured to receive two or more audio input signals, wherein the decomposition module (101) is configured to generate a direct component signal, comprising direct signal components of the two or more audio input signals, and wherein the decomposition module (101) is configured to generate a diffuse component signal, comprising diffuse signal components of the two or more audio input signals. The signal processor (105) is configured to receive the direct component signal, the diffuse component signal and direction information, said direction information depending on a direction of arrival of the direct signal components of the two or more audio input signals. Moreover, the signal processor (105) is configured to generate one or more processed diffuse signals depending on the diffuse component signal. For each audio output signal of the one or more audio output signals, the signal processor (105) is configured to determine, depending on the direction of arrival, a direct gain, the signal processor (105) is configured to apply said direct gain on the direct component signal to obtain a processed direct signal, and the signal processor (105) is configured to combine said processed direct signal and one of the one or more processed diffuse signals to generate said audio output signal. The output interface (106) is configured to output the one or more audio output signals.
摘要翻译：提供了一种用于产生一个或多个音频输出信号系统。该系统包括分解模块（101），信号处理器（105），以及输出接口（106）。所述分解模块（101）被配置为接收两个或多个音频输入信号，worin所述分解模块（101）被配置为产生一个直流分量信号，其包括两个或多个音频输入信号的直接信号分量，和worin分解模块（101）被配置为生成扩散分量信号，其包括两个或多个音频输入信号的散射信号分量。信号处理器（105）被配置成接收直流分量信号，所述漫射分量信号和方向信息，所述方向信息根据所述两个或多个音频输入信号的直接信号分量的到达方向。更上方，所述信号处理器（105）被配置为生成一个或多个经处理的扩散信号取决于扩散分量信号。用于所述一个或多个音频输出信号的每个音频输出信号，所述信号处理器（105）被配置为确定的矿井，这取决于到达，直接增益，所述信号处理器（105）的方向被配置为应用在所述直接增益直流分量的信号以获得已处理的直接信号，并且所述信号处理器（105）被配置为组合所述处理直接信号和所述一个的一个或多个处理的散射信号，以产生所述音频输出信号。输出接口（106）被配置为输出一个或多个音频输出信号。

9. 发明公开

EP2884491A1 Extraction of reverberant sound using microphone arrays 审中-公开
标题翻译： Extraktion von Wiederhall-Tonsignalen mittels Mikrofonanordnungen
公开(公告)号：EP2884491A1
公开(公告)日：2015-06-17
申请号：EP14156014.4
申请日：2014-02-20
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. , Friedrich-Alexander-Universität Erlangen-Nürnberg
发明人： Thiergart, Oliver , Habets, Emanuel
IPC分类号： G10L21/02 , G10L19/26 , H04R5/027 , G11B20/10
CPC分类号： G10L21/0264 , G10L19/26 , G10L21/02 , G10L21/0208 , G10L2021/02082 , G10L2021/02166 , G11B2020/10601 , H04R3/005 , H04R5/027 , H04S2400/15 , H04S2420/01
摘要： A method comprises estimating a spatial coherence between a first diffuse sound portion in a first microphone signal and a second diffuse sound portion in a second microphone signal. The first microphone signal is captured by a first microphone and the second microphone signal is captured by a second microphone which is spaced apart from the first microphone in a known manner. The method further comprises defining a linear constraint for filter coefficients of a diffuse sound filter, the linear constraint being based on the spatial coherence. The method also comprises calculating at least one of signal statistics and noise statistics over the first microphone signal and the second microphone signal. The method also comprises determining the filter coefficients of the diffuse sound filter by solving an optimization problem concerning at least one of the signal statistics and noise statistics while considering the linear constraint for the filter coefficients.
摘要翻译：一种方法包括估计第一麦克风信号中的第一扩散声部分和第二麦克风信号中的第二扩散声部分之间的空间相干性。第一麦克风信号由第一麦克风捕获，并且第二麦克风信号由以已知方式与第一麦克风间隔开的第二麦克风捕获。所述方法还包括定义扩散声音滤波器的滤波器系数的线性约束，线性约束基于空间相干性。该方法还包括在第一麦克风信号和第二麦克风信号上计算信号统计和噪声统计中的至少一个。该方法还包括通过在考虑滤波器系数的线性约束的同时解决关于信号统计和噪声统计中的至少一个的优化问题来确定扩散声滤波器的滤波器系数。

10. 发明公开

EP2747451A1 Filter and method for informed spatial filtering using multiple instantaneous direction-of-arrivial estimates 审中-公开
标题翻译：过滤器和用于告知空间滤波方法具有多个到达估计的瞬时方向的
公开(公告)号：EP2747451A1
公开(公告)日：2014-06-25
申请号：EP13169163.6
申请日：2013-05-24
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. , Friedrich-Alexander-Universität Erlangen-Nürnberg
发明人： Habets, Emanuel , Thiergart, Oliver , Braun, Sebastian , Taseska, Maja
IPC分类号： H04R3/00 , G10K11/34
CPC分类号： G06F3/16 , G10K11/346 , H04R3/005 , H04R3/02
摘要： A filter (100) for generating an audio output signal, comprising a plurality of audio output signal samples, based on two or more input microphone signals is provided. The audio output signal and the two or more input microphone signals are represented in a time-frequency domain, wherein each of the plurality of audio output signal samples is assigned to a time-frequency bin (( k , n)) of a plurality of time-frequency bins ((k, n )). The filter (100) comprises a weights generator (110) being adapted to receive, for each of the plurality of time-frequency bins (( k , n)), direction-of-arrival information of one or more sound components of one or more sound sources or position information of one or more sound sources, and being adapted to generate weighting information for each of the plurality of time-frequency bins ((k, n)) depending on the direction-of-arrival information of the one or more sound components of the one more sound sources of said time-frequency bin (( k , n )) or depending on the position information of the one or more sound sources of said time-frequency bin (( k , n )). Moreover, the filter comprises an output signal generator (120) for generating the audio output signal by generating for each of the plurality of time-frequency bins (( k , n )) one of the plurality of audio output signal samples, which is assigned to time-frequency bin (( k , n )), depending on the weighting information of said time-frequency bin (( k , n )) and depending on an audio input sample, being assigned to said time-frequency bin (( k, n )), of each of the two or more input microphone signals.
摘要翻译：一种用于在音频输出信号产生，包括音频输出信号样本的复数，基于两个或多个输入麦克风信号滤波器（100）被提供。音频输出信号和所述两个或更多个输入麦克风信号被表示在时间 - 频率域，worin每个音频输出信号样本的所述多个被分配给时间 - 频率频段（（K，N））中的多个时间 - 频率频段（（K，N））。所述过滤器（100）包括一个权重产生器（110）是angepasst接收，对于每个时间 - 频率频段（（K，N））的多个，方向的到达一个或一个或多个声音分量的信息多个声源或者一个或多个声源的位置信息，并且是angepasst以生成针对每个时间 - 频率频段（（K，N））的多个加权信息根据所述一个或一个方向的到达信息的所述时间 - 频率频段中的所述一个多个声源更声音分量（（K，N）），或者取决于所述时间 - 频率频段中的所述一个或多个声源的位置信息（（K，N））。更完了，用于通过生成针对每个时间 - 频率频段（（K，n））的音频输出信号样本的多个一个的所述多个生成所述音频输出信号的输出信号生成器（120）的过滤器包括，所有这一切都被分配到时间 - 频率频段（（K，N）），根据所述时间 - 频率频段的加权信息，并且根据（（K，n））的音频输入采样，被分配给所述时间 - 频率频段（（K 中，每个所述两个或更多个输入麦克风信号中的N））。

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