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41. 发明授权

EP2617031B1 OPTIMAL MIXING MATRICES AND USAGE OF DECORRELATORS IN SPATIAL AUDIO PROCESSING 有权
标题翻译：优化MISCHMATRIZEN和空间去相关使用音频处理
公开(公告)号：EP2617031B1
公开(公告)日：2014-07-23
申请号：EP12745880.0
申请日：2012-08-14
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
发明人： VILKAMO, Juha , BÄCKSTRÖM, Tom , KÜCH, Fabian , KUNTZ, Achim
IPC分类号： G10L19/008
CPC分类号： G10H1/183 , G10L19/008

42. 发明公开

EP2617031A1 OPTIMAL MIXING MATRICES AND USAGE OF DECORRELATORS IN SPATIAL AUDIO PROCESSING 有权
标题翻译：瑞典维多利亚时代的最佳选手VON DEKORRELATOREN在RÄUMLICHERAUDIOVERARBEITUNG
公开(公告)号：EP2617031A1
公开(公告)日：2013-07-24
申请号：EP12745880.0
申请日：2012-08-14
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
发明人： VILKAMO, Juha , BÄCKSTRÖM, Tom , KÜCH, Fabian , KUNTZ, Achim
IPC分类号： G10L19/00
CPC分类号： G10H1/183 , G10L19/008
摘要： An apparatus for generating an audio output signal having two or more audio output channels from an audio input signal having two or more audio input channels is provided. The apparatus comprises a provider (110) and a signal processor (120). The provider (110) is adapted to provide first covariance properties of the audio input signal. The signal processor (120) is adapted to generate the audio output signal by applying a mixing rule on at least two of the two or more audio input channels. The signal processor (120) is configured to determine the mixing rule based on the first covariance properties of the audio input signal and based on second covariance properties of the audio output signal, the second covariance properties being different from the first covariance properties.
摘要翻译：提供了一种用于从具有两个或多个音频输入通道的音频输入信号产生具有两个或多个音频输出通道的音频输出信号的装置。该装置包括提供商（110）和信号处理器（120）。提供者（110）适于提供音频输入信号的第一协方差属性。信号处理器（120）适于通过在两个或多个音频输入通道中的至少两个上施加混合规则来产生音频输出信号。信号处理器（120）被配置为基于音频输入信号的第一协方差属性来确定混合规则，并且基于音频输出信号的第二协方差属性，第二协方差属性与第一协方差属性不同。

43. 发明公开

EP4351173A2 APPARATUS AND METHOD FOR GENERATING A PLURALITY OF AUDIO CHANNELS 审中-实审
公开(公告)号：EP4351173A2
公开(公告)日：2024-04-10
申请号：EP24159429.0
申请日：2015-01-05
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
发明人： BORSS, Christian , ERTEL, Christian , HILPERT, Johannes , KUNTZ, Achim , FISCHER, Michael , SCHUH, Florian , GRILL, Bernhard
IPC分类号： H04S7/00
摘要： An apparatus for generating a plurality of audio channels for a first speaker setup is characterized by an imaginary speaker determiner, an energy distribution calculator, a processor and a renderer. The imaginary speaker determiner is configured to determine a position of an imaginary speaker not contained in the first speaker setup to obtain a second speaker setup containing the imaginary speaker. The energy distribution calculator is configured to calculate an energy distribution from the imaginary speaker to the other speakers in the second speaker setup. The processor is configured to repeat the energy distribution to obtain a downmix information for a downmix from the second speaker setup to the first speaker setup. The renderer is configured to generate the plurality of audio channels using the downmix information.

44. 发明授权

EP3092823B1 APPARATUS AND METHOD FOR GENERATING A PLURALITY OF AUDIO CHANNELS 有权
公开(公告)号：EP3092823B1
公开(公告)日：2019-11-27
申请号：EP15700180.1
申请日：2015-01-05
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
发明人： BORSS, Christian , ERTEL, Christian , HILPERT, Johannes , KUNTZ, Achim , FISCHER, Michael , SCHUH, Florian , GRILL, Bernhard
IPC分类号： H04S3/02 , H04S7/00

45. 发明授权

EP3025518B1 APPARATUS, METHOD, AND COMPUTER PROGRAM FOR MAPPING FIRST AND SECOND INPUT CHANNELS TO AT LEAST ONE OUTPUT CHANNEL 有权
标题翻译：用于将第一和第二输入通道映射到至少一个输出通道的装置，方法和计算机程序
公开(公告)号：EP3025518B1
公开(公告)日：2017-09-13
申请号：EP14738861.5
申请日：2014-07-15
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
发明人： HERRE, Jürgen , KÜCH, Fabian , KRATSCHMER, Michael , KUNTZ, Achim , FALLER, Christof
IPC分类号： H04S7/00 , G10L19/008 , H04S3/00
CPC分类号： H04S7/303 , G10L19/008 , H04R5/02 , H04S3/002 , H04S3/02 , H04S7/30 , H04S7/302 , H04S7/305 , H04S7/308 , H04S2400/01 , H04S2400/03 , H04S2420/03

46. 发明授权

EP3025519B1 METHOD, SIGNAL PROCESSING UNIT, AND COMPUTER PROGRAM FOR MAPPING A PLURALITY OF INPUT CHANNELS OF AN INPUT CHANNEL CONFIGURATION TO OUTPUT CHANNELS OF AN OUTPUT CHANNEL CONFIGURATION 有权
标题翻译：方法，信号处理单元和计算机程序，用于将输入通道配置的多个输入通道映射到输出通道配置的输出通道
公开(公告)号：EP3025519B1
公开(公告)日：2017-08-23
申请号：EP14738862.3
申请日：2014-07-15
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
发明人： HERRE, Jürgen , KÜCH, Fabian , KRATSCHMER, Michael , KUNTZ, Achim , FALLER, Christoph
IPC分类号： H04S7/00 , H04S3/00 , G10L19/008
CPC分类号： H04S7/303 , G10L19/008 , H04R5/02 , H04S3/002 , H04S3/02 , H04S7/30 , H04S7/302 , H04S7/305 , H04S7/308 , H04S2400/01 , H04S2400/03 , H04S2420/03

47. 发明公开

EP3025521A2 RENDERER CONTROLLED SPATIAL UPMIX 有权
标题翻译： DURCH RENDERER GESTEUERTERÄUMLICHEAUFWÄRTSMISCHUNG
公开(公告)号：EP3025521A2
公开(公告)日：2016-06-01
申请号：EP14753020.8
申请日：2014-07-14
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
发明人： ERTEL, Christian , HILPERT, Johannes , HÖLZER, Andreas , KUNTZ, Achim , PLOGSTIES, Jan , KRATSCHMER, Michael
IPC分类号： H04S7/00 , H04S5/00
CPC分类号： H04S5/005 , G10L19/008 , H04S5/00 , H04S7/308 , H04S2400/01 , H04S2400/03 , H04S2400/05 , H04S2420/03
摘要： An audio decoder device for decoding a compressed input audio signal comprising at least one core decoder (6, 24) having one or more processors (36, 36') for generating a processor output signal (37) based on a processor input signal (38, 38'), wherein a number of output channels (37.1, 37.2, 37.1', 37.2') of the processor output signal (37, 37') is higher than a number of input channels (38.1, 38.1') of the processor input signal (38, 38'), wherein each of the one or more processors (36, 36') comprises a decorrelator (39, 39') and a mixer (40, 40'), wherein a core decoder output signal (13) having a plurality of channels (13.1, 13.2, 13.3, 13,4) comprises the processor output signal (37, 37'), and wherein the core decoder output signal (13) is suitable for a reference loudspeaker setup (42); at least one format converter device (9, 10) configured to convert the core decoder output signal (13) into an output audio signal (31), which is suitable for a target loudspeaker setup (45); and a control device (46) configured to control at least one or more processors (36, 36') in such way that the decorrelator (39, 39') of the processor (36, 36') may be controlled independently from the mixer (40, 40') of the processor (36, 36'), wherein the control device (46) is configured to control at least one of the decorrelators (39, 39') of the one or more processors (36, 36') depending on the target loudspeaker setup (45).
摘要翻译：一种用于解码压缩输入音频信号的音频解码器装置，包括至少一个具有一个或多个处理器（36,36'）的核心解码器（6,24），用于基于处理器输入信号（38）产生处理器输出信号（37），38'），其中所述处理器输出信号（37,37'）的多个输出通道（37.1,37.2,37.1'，37.2'）高于所述处理器的多个输入通道（38.1,38.1'）输入信号（38,38'），其中所述一个或多个处理器（36,36'）中的每一个包括去相关器（39,39'）和混频器（40,40'），其中核心解码器输出信号）包括所述处理器输出信号（37,37'），并且其中所述核心解码器输出信号（13）适用于参考扬声器设置（42）;所述多个信道（13.1,13.2,13.3,134）至少一个格式转换器装置（9,10），被配置为将所述核心解码器输出信号（13）转换成适合于目标扬声器设置（45）的输出音频信号（31）; 以及控制装置（46），被配置为以这样的方式控制至少一个或多个处理器（36,36'），使得处理器（36,36'）的去相关器（39,39'）可以独立于混频器（36,36'）的所述解相关器（40,40'）中的至少一个处理器（36,36'）被配置成控制所述处理器（36,36'）的所述解相关器（39,39'）中的至少一个，）取决于目标扬声器设置（45）。

48. 发明公开

EP3025329A1 CONCEPT FOR AUDIO ENCODING AND DECODING FOR AUDIO CHANNELS AND AUDIO OBJECTS 有权转让
标题翻译： CONCEPT音频通讯渠道和音频对象音频编码和解码音频
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).

49. 发明公开

EP3022735A1 AUDIO ENCODER, AUDIO DECODER, METHODS AND COMPUTER PROGRAM USING JOINTLY ENCODED RESIDUAL SIGNALS 有权
标题翻译： AUDIOCODIERER，AUDIODECODIERER，VERFAHREN UND COMPUTERPROGRAMM MIT GEMEINSAM CODIERTEN RESTSIGNALEN
公开(公告)号：EP3022735A1
公开(公告)日：2016-05-25
申请号：EP14739141.1
申请日：2014-07-11
申请人： Fraunhofer Gesellschaft zur Förderung der angewandten Forschung e.V.
发明人： DICK, Sascha , ERTEL, Christian , HELMRICH, Christian , HILPERT, Johannes , HÖLZER, Andreas , KUNTZ, Achim
IPC分类号： G10L19/008 , G10L21/038
CPC分类号： G10L19/008 , G10L19/0017 , G10L21/038 , H04S3/008 , H04S7/30 , H04S2400/01 , H04S2400/03 , H04S2420/03
摘要： An audio decoder for providing at least four bandwidth-extended channel signals on the basis of an encoded representation is configured to provide a first downmix signal and a second downmix signal on the basis of a jointly encoded representation of the first downmix signal and the second downmix signal using a multi-channel decoding. The audio decoder is configured to provide at least a first audio channel signal and a second audio channel signal on the basis of the first downmix signal using a multi-channel decoding. The audio decoder is configured to provide at least a third audio channel signal and a fourth audio channel signal on the basis of the second downmix signal using a multi-channel decoding. The audio decoder is configured to perform a multi-channel bandwidth extension on the basis of the first audio channel signal and the third audio channel signal, to obtain a first bandwidth-extended channel signal and a third bandwidth-extended channel signal. The audio decoder is configured to perform a multi-channel bandwidth extension on the basis of the second audio channel signal and the fourth audio channel signal, to obtain a second bandwidth extended channel signal and a fourth bandwidth extended channel signal. An audio encoder uses a related concept.
摘要翻译：用于基于编码表示提供至少四个带宽扩展信道信号的音频解码器被配置为基于第一下混合信号和第二降混信号的联合编码表示来提供第一下混信号和第二下混信号信号采用多通道解码。音频解码器被配置为使用多声道解码来基于第一下混合信号来提供至少第一音频声道信号和第二音频声道信号。音频解码器被配置为使用多声道解码来基于第二降混信号来提供至少第三音频声道信号和第四音频声道信号。音频解码器被配置为基于第一音频信道信号和第三音频信道信号来执行多信道带宽扩展，以获得第一带宽扩展信道信号和第三带宽扩展信道信号。音频解码器被配置为基于第二音频信道信号和第四音频信道信号执行多信道带宽扩展，以获得第二带宽扩展信道信号和第四带宽扩展信道信号。音频编码器使用相关概念。

50. 发明授权

EP2647222B1 SOUND ACQUISITION VIA THE EXTRACTION OF GEOMETRICAL INFORMATION FROM DIRECTION OF ARRIVAL ESTIMATES 有权转让
标题翻译：音频检测的萃取几何信息从到达方向估计
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.

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