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11. 发明申请

WO2012072787A1 APPARATUS AND METHOD FOR SPATIALLY SELECTIVE SOUND ACQUISITION BY ACOUSTIC TRIANGULATION 审中-公开
标题翻译：通过声学三角形进行空间选择性声音采集的装置和方法
公开(公告)号：WO2012072787A1
公开(公告)日：2012-06-07
申请号：PCT/EP2011/071600
申请日：2011-12-02
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , FRIEDRICH-ALEXANDER-UNIVERSITÄT ERLANGEN-NÜRNBERG , HERRE, Jürgen , KÜCH, Fabian , KALLINGER, Markus , DEL GALDO, Giovanni , GRILL, Bernhard
发明人： HERRE, Jürgen , KÜCH, Fabian , KALLINGER, Markus , DEL GALDO, Giovanni , GRILL, Bernhard
IPC分类号： H04R1/40 , H04R3/00
CPC分类号： H04R1/40 , G10L2021/02166 , H04R1/406 , H04R3/005 , H04R2201/401 , H04R2430/25
摘要： An apparatus for capturing audio information from a target location is provided. The apparatus comprises a first beamformer (110) being arranged in a recording environment and having a first recording characteristic, a second beamformer (120) being arranged in the recording environment and having a second recording characteristic and a signal generator (130). The first beamformer (110) is configured for recording a first beamformer audio signal and the second beamformer is configured for recording a second beamformer audio signal when the first beamformer (110) and the second beamformer (120) are directed towards the target location with respect to the first and the second recording characteristic. The first beamformer (110) and the second beamformer (120) are arranged such that a first virtual straight line, being defined to pass through the first beamformer (110) and the target location, and a second virtual straight line, being defined to pass through the second beamformer (120) and the target location, are not parallel with respect to each other. The signal generator (130) is configured to generate an audio output signal based on the first beamformer audio signal and on the second beamformer audio signal 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 the second beamformer audio signal.
摘要翻译：提供了一种用于从目标位置捕获音频信息的装置。该装置包括布置在记录环境中并具有第一记录特性的第一波束形成器（110），第二波束形成器（120）布置在记录环境中并具有第二记录特性和信号发生器（130）。第一波束成形器（110）被配置为用于记录第一波束形成器音频信号，并且第二波束形成器被配置用于当第一波束形成器（110）和第二波束形成器（120）指向目标位置时记录第二波束形成器音频信号，到第一和第二记录特性。第一波束成形器（110）和第二波束成形器（120）被布置成使得被定义为穿过第一波束形成器（110）和目标位置的第一虚拟直线和被定义为通过的第二虚拟直线通过第二波束形成器（120）和目标位置不相对于彼此平行。信号发生器（130）被配置为基于第一波束形成器音频信号和第二波束形成器音频信号来生成音频输出信号，使得音频输出信号与来自目标位置的音频信息相比，反映来自目标位置的相对更多的音频信息第一和第二波束形成器音频信号中的目标位置。

12. 发明申请

WO2011104146A1 APPARATUS FOR GENERATING AN ENHANCED DOWNMIX SIGNAL, METHOD FOR GENERATING AN ENHANCED DOWNMIX SIGNAL AND COMPUTER PROGRAM 审中-公开
标题翻译：用于产生增强的下行信号的装置，用于产生增强的下行信号和计算机程序的方法
公开(公告)号：WO2011104146A1
公开(公告)日：2011-09-01
申请号：PCT/EP2011/052246
申请日：2011-02-15
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , KÜCH, Fabian , HERRE, Jürgen , FALLER, Christof , TOURNERY, Christophe
发明人： KÜCH, Fabian , HERRE, Jürgen , FALLER, Christof , TOURNERY, Christophe
IPC分类号： G10L19/00
CPC分类号： H04R5/00 , G10L19/008 , G10L19/265 , G10L21/02
摘要： An apparatus for generating an enhanced downmix signal on the basis of a multi-channel microphone signal comprises a spatial analyzer configured to compute a set of spatial cue parameters comprising a direction information describing a direction-of-arrival of a direct sound, a direct sound power information and a diffuse sound power information on the basis of the multi-channel microphone signal. The apparatus also comprises a filter calculator for calculating enhancement filter parameters in dependence on the direction information describing the direction-of-arrival of the direct sound, in dependence on the direct sound power information and in dependence on the diffuse sound power information. The apparatus also comprises a filter for filtering the microphone signal, or a signal derived therefrom, using the enhancement filter parameters, to obtain the enhanced downmix signal.
摘要翻译：一种用于基于多声道麦克风信号产生增强的下混信号的装置包括：空间分析器，被配置为计算一组空间提示参数，所述空间提示参数包括描述直接声音的到达方向的方向信息，直接声音功率信息和基于多声道麦克风信号的漫射声功率信息。该装置还包括一个滤波器计算器，用于根据直接声功率信息和依赖于扩散声功率信息，根据描述直接声音到达方向的方向信息计算增强滤波器参数。该装置还包括用于过滤麦克风信号的滤波器或使用增强滤波器参数从其导出的信号，以获得增强的降混信号。

13. 发明申请

WO2020115311A1 APPARATUS, METHOD AND COMPUTER PROGRAM FOR ENCODING, DECODING, SCENE PROCESSING AND OTHER PROCEDURES RELATED TO DIRAC BASED SPATIAL AUDIO CODING USING LOW-ORDER, MID-ORDER AND HIGH-ORDER COMPONENTS GENERATORS 审中-公开
公开(公告)号：WO2020115311A1
公开(公告)日：2020-06-11
申请号：PCT/EP2019/084056
申请日：2019-12-06
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
发明人： FUCHS, Guillaume , THIERGART, Oliver , KORSE, Srikanth , DÖHLA, Stefan , MULTRUS, Markus , KÜCH, Fabian , BOUTHÉON, Alexandre , EICHENSEER, Andrea , BAYER, Stefan
IPC分类号： G10L19/008 , H04S7/00
摘要： An apparatus for generating a sound field description using an input signal comprising a mono-signal or a multi-channel signal comprises: an input signal analyzer (600) for analyzing the input signal to derive direction data and diffuseness data; a low-order components generator (810) for generating a low-order sound field description from the input signal up to a predetermined order and mode, wherein the low-order components generator is configured to derive the low-order sound field description by copying or taking the input signal or performing a weighted combination of the channels of the input signal; a mid-order components generator (820) for generating a mid-order sound field description above the predetermined order or at the predetermined order and above the predetermined mode and below or at a first truncation order using a synthesis of at least one direct portion and of at least one diffuse portion using the direction data and the diffuseness data so that the mid-order sound field description comprises a direct contribution and a diffuse contribution; and a high-order components generator (830) for generating a high-order sound field description having a component above the first truncation order using a synthesis of at least one direct portion, wherein the high order sound field description comprises a direct contribution only.

14. 发明申请

WO2020115309A1 APPARATUS, METHOD AND COMPUTER PROGRAM FOR ENCODING, DECODING, SCENE PROCESSING AND OTHER PROCEDURES RELATED TO DIRAC BASED SPATIAL AUDIO CODING USING DIFFUSE COMPENSATION 审中-公开
公开(公告)号：WO2020115309A1
公开(公告)日：2020-06-11
申请号：PCT/EP2019/084053
申请日：2019-12-06
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
发明人： FUCHS, Guillaume , THIERGART, Oliver , KORSE, Srikanth , DÖHLA, Stefan , MULTRUS, Markus , KÜCH, Fabian , BOUTHÉON, Alexandre , EICHENSEER, Andrea , BAYER, Stefan
IPC分类号： G10L19/008 , H04S7/00
摘要： An apparatus for generating a sound field description from an input signal comprising one or more channels, comprises: an input signal analyzer (600) for obtaining diffuseness data from the input signal; a sound component generator (650) for generating, from the input signal, one or more sound field components of a first group of sound field components having for each sound field component a direct component and a diffuse component, and for generating, from the input signal, a second group of sound field components having only a direct component, wherein the sound component generator is configured to perform an energy compensation when generating the first group of sound field components, the energy compensation depending on the diffuseness data and at least one of a number of sound field components in the second group, a number of diffuse components in the first group, a maximum order of sound field components of the first group and a maximum order of sound field components of the second group.

15. 发明申请

WO2019068638A1 APPARATUS, METHOD AND COMPUTER PROGRAM FOR ENCODING, DECODING, SCENE PROCESSING AND OTHER PROCEDURES RELATED TO DIRAC BASED SPATIAL AUDIO CODING 审中-公开
公开(公告)号：WO2019068638A1
公开(公告)日：2019-04-11
申请号：PCT/EP2018/076641
申请日：2018-10-01
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , FRIEDRICH-ALEXANDER-UNIVERSITAET ERLANGEN-NUERNBERG
发明人： FUCHS, Guillaume , HERRE, Jürgen , KÜCH, Fabian , DÖHLA, Stefan , MULTRUS, Markus , THIERGART, Oliver , WÜBBOLT, Oliver , GHIDO, Florin , BAYER, Stefan , JÄGERS, Wolfgang
IPC分类号： G10L19/008 , G10L19/16
摘要： An apparatus for generating a description of a combined audio scene, comprises: an input interface (100) for receiving a first description of a first scene in a first format and a second description of a second scene in a second format, wherein the second format is different from the first format; a format converter (120) for converting the first description into a common format and for converting the second description into the common format, when the second format is different from the common format; and a format combiner (140) for combining the first description in the common format and the second description in the common format to obtain the combined audio scene.

16. 发明申请

WO2015010961A2 APPARATUS AND METHOD FOR MAPPING FIRST AND SECOND INPUT CHANNELS TO AT LEAST ONE OUTPUT CHANNEL 审中-公开
标题翻译：将第一和第二输入通道映射到至少一个输出通道的装置和方法
公开(公告)号：WO2015010961A2
公开(公告)日：2015-01-29
申请号：PCT/EP2014/065153
申请日：2014-07-15
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , FRIEDRICH-ALEXANDER-UNIVERSITAET ERLANGEN-NUERNBERG
发明人： HERRE, Jürgen , KÜCH, Fabian , KRATSCHMER, Michael , KUNTZ, Achim , FALLER, Christoph
IPC分类号： H04S7/00
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
摘要： An apparatus for mapping a first input channel and a second input channel of an input channel configuration to at least one output channel of an output channel configuration, wherein each input channel and each output channel has a direction in which an associated loudspeaker is located relative to a central listener position, wherein the apparatus is configured to map the first input channel to a first output channel of the output channel configuration. The apparatus is further configured to at least one of a) map the second input channel to the first output channel, comprising processing the second input channel by applying at least one of an equalization filter and a decorrelation filter to the second input channel, and b) despite of the fact that an angle deviation between a direction of the second input channel and a direction of the first output channel is less than an angle deviation between a direction of the second input channel and the second output channel and/or is less than an angle deviation between the direction of the second input channel and the direction of the third output channel, map the second input channel to the second and third output channels by panning between the second and third output channels.
摘要翻译：一种用于将输入通道配置的第一输入通道和第二输入通道映射到输出通道配置的至少一个输出通道的装置，其中每个输入通道和每个输出通道具有相关联的扬声器相对于中央收听者位置，其中所述装置被配置为将所述第一输入信道映射到所述输出信道配置的第一输出信道。所述装置还被配置为a）将所述第二输入信道映射到所述第一输出信道中的至少一个，包括通过将均衡滤波器和解相关滤波器中的至少一个应用于所述第二输入信道来处理所述第二输入信道，以及b ），尽管事实是第二输入通道的方向和第一输出通道的方向之间的角度偏差小于第二输入通道的方向与第二输出通道之间的角度偏差和/或小于第二输入通道的方向与第三输出通道的方向之间的角度偏差，通过在第二和第三输出通道之间进行平移将第二输入通道映射到第二和第三输出通道。

17. 发明申请

WO2014076030A1 SEGMENT-WISE ADJUSTMENT OF SPATIAL AUDIO SIGNAL TO DIFFERENT PLAYBACK LOUDSPEAKER SETUP 审中-公开
标题翻译：空间音频信号分段调整到不同的播放扬声器设置
公开(公告)号：WO2014076030A1
公开(公告)日：2014-05-22
申请号：PCT/EP2013/073482
申请日：2013-11-11
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , FRIEDRICH-ALEXANDER-UNIVERSITÄT ERLANGEN-NÜRNBERG , TECHNISCHE UNIVERSITÄT ILMENAU
发明人： ADAMI, Alexander , HERRE, Jürgen , KUNTZ, Achim , DEL GALDO, Giovanni , KÜCH, Fabian
IPC分类号： H04S5/00
CPC分类号： G10L19/008 , H04S5/00 , H04S7/30 , H04S7/303
摘要： Apparatus (100) for adapting a spatial audio signal (2) for an original loudspeaker setup to a playback loudspeaker setup that differs from the original loudspeaker setup. The apparatus comprises a direct-ambience decomposer (130) that is configured to decomposing channel signals in a segment of the original loudspeaker setup into direct sound (D) and ambience components (A), and to determine a direction of arrival of the direct sound components. A direct sound renderer (150) receives a playback loudspeaker setup information and adjusts the direct sound components (D) using the playback loudspeaker setup information so that a perceived direction of arrival of the direct sound components in the playback loudspeaker setup is substantially identical to the direction of arrival of the direct sound components. A combiner (180) combines adjusted direct sound components and possibly modified ambience components to obtain loudspeaker signals for loudspeakers of the playback loudspeaker setup.
摘要翻译：用于将用于原始扬声器设置的空间音频信号（2）适配到与原始扬声器设置不同的回放扬声器设置的设备（100）。该设备包括直接环境分解器（130），其被配置为将原始扬声器设置的段中的信道信号分解为直接声音（D）和环境分量（A），并且确定直接声音的到达方向组件。直接声音渲染器（150）接收播放扬声器设置信息并使用回放扬声器设置信息调整直接声音分量（D），使得直播声音分量在回放扬声器设置中的感知到达方向基本上与直接声音组件的到达方向。组合器（180）将经调整的直接声音分量和可能的改进的氛围组件组合以获得用于播放扬声器设置的扬声器的扬声器信号。

18. 发明申请

WO2022079044A1 APPARATUS AND METHOD FOR ENCODING A PLURALITY OF AUDIO OBJECTS USING DIRECTION INFORMATION DURING A DOWNMIXING OR APPARATUS AND METHOD FOR DECODING USING AN OPTIMIZED COVARIANCE SYNTHESIS 审中-公开
公开(公告)号：WO2022079044A1
公开(公告)日：2022-04-21
申请号：PCT/EP2021/078209
申请日：2021-10-12
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , FRIEDRICH-ALEXANDER-UNIVERSITAET ERLANGEN-NUERNBERG
发明人： EICHENSEER, Andrea , KORSE, Srikanth , BAYER, Stefan , KÜCH, Fabian , THIERGART, Oliver , FUCHS, Guillaume , WECKBECKER, Dominik , HERRE, Jürgen , MULTRUS, Markus
IPC分类号： G10L19/008 , H04S7/00
摘要： An apparatus for encoding a plurality of audio objects and related metadata indicating direction information on the plurality of audio objects, comprises: a downmixer (400) for downmixing the plurality of audio objects to obtain one or more transport channels; a transport channel encoder (300) for encoding one or more transport channels to obtain one or more encoded transport channels; and an output interface (200) for outputting an encoded audio signal comprising the one or more encoded transport channels, wherein the downmixer (400) is configured to downmix the plurality of audio objects in response to the direction information on the plurality of audio objects.

19. 发明申请

WO2021018830A1 APPARATUS, METHOD OR COMPUTER PROGRAM FOR PROCESSING A SOUND FIELD REPRESENTATION IN A SPATIAL TRANSFORM DOMAIN 审中-公开
公开(公告)号：WO2021018830A1
公开(公告)日：2021-02-04
申请号：PCT/EP2020/071120
申请日：2020-07-27
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , FRIEDRICH-ALEXANDER-UNIVERSITAET ERLANGEN-NUERNBERG
发明人： THIERGART, Oliver , NIEDERLEITNER, Alexander , HABETS, Emanuel , WILD, Moritz , PLINGE, Axel , KUNTZ, Achim , BOUTHÉON, Alexandre , MAHNE, Dirk , KÜCH, Fabian
IPC分类号： H04S7/00
摘要： An apparatus for processing a sound field representation related to a defined reference point or a defined listening orientation for the sound field representation, comprises: a sound field processor for processing the sound field representation using a deviation of a target listening position from the defined reference point or of a target listening orientation from the defined listening orientation, so that a processed sound field description is obtained, wherein the processed sound field description, when rendered, provides an impression of the sound field representation at the target listening position being different from the defined reference point or for the target listening orientation being different from the defined listening orientation, or for processing the sound field representation using a spatial filter so that the processed sound field description is obtained, wherein the processed sound field description, when rendered, provides an impression of a spatially filtered sound field description, wherein the sound field processor (1000) is configured to process the sound field representation so that the deviation or the spatial filter (1030) is applied in a spatial transform domain having associated therewith a forward transform rule (1021) and a backward transform rule (1051).

20. 发明申请

WO2021018378A1 APPARATUS, METHOD OR COMPUTER PROGRAM FOR PROCESSING A SOUND FIELD REPRESENTATION IN A SPATIAL TRANSFORM DOMAIN 审中-公开
公开(公告)号：WO2021018378A1
公开(公告)日：2021-02-04
申请号：PCT/EP2019/070373
申请日：2019-07-29
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , FRIEDRICH-ALEXANDER-UNIVERSITAET ERLANGEN-NUERNBERG
发明人： THIERGART, Oliver , NIEDERLEITNER, Alexander , HABETS, Emanuel , WILD, Moritz , PLINGE, Axel , KUNTZ, Achim , BOUTHÉON, Alexandre , MAHNE, Dirk , KÜCH, Fabian
IPC分类号： H04S7/00
摘要： An apparatus for processing a sound field representation related to a defined reference point or a defined listening orientation for the sound field representation, comprises: a sound field processor for processing the sound field representation using a deviation of a target listening position from the defined reference point or of a target listening orientation from the defined listening orientation, so that a processed sound field description is obtained, wherein the processed sound field description, when rendered, provides an impression of the sound field representation at the target listening position being different from the defined reference point or for the target listening orientation being different from the defined listening orientation, or for processing the sound field representation using a spatial filter so that the processed sound field description is obtained, wherein the processed sound field description, when rendered, provides an impression of a spatially filtered sound field description, wherein the sound field processor (1000) is configured to process the sound field representation so that the deviation or the spatial filter (1030) is applied in a spatial transform domain having associated therewith a forward transform rule (1021) and a backward transform rule (1051).

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