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1. 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.

2. 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.

3. 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.

4. 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。

5. 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。

6. 发明申请

WO2012025512A1 APPARATUS AND METHOD FOR RESOLVING AMBIGUITY FROM A DIRECTION OF ARRIVAL ESTIMATE 审中-公开
标题翻译：从近期估计方向解析风险的装置和方法
公开(公告)号：WO2012025512A1
公开(公告)日：2012-03-01
申请号：PCT/EP2011/064436
申请日：2011-08-23
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , KALLINGER, Markus , DEL GALDO, Giovanni , KÜCH, Fabian , THIERGART, Oliver , MAHNE, Dirk , KUNTZ, Achim , SCHULTZ-AMLING, Richard
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：一种用于从DOA估计（105）（f ^ amb）解析歧义的装置（100）包括用于分析DOA估计（105）（f ^ amb）的DOA估计分析器（110），以获得多个（115）模糊分析参数（f〜I ... f〜N; f（f〜I）... f（f〜N）; fenh，I（f ^ amb）....; fenh，N ）; gp（f〜I）... gp（f〜N）; D（f〜I）... D（f〜N）），偏置信息（101）偏差（f ^）和无偏差DOA估计（f）之间的关系（f ^ f）和用于解析多个（115）模糊分析参数（f〜）中的模糊度的歧义解析器（120）（f〜n）; f（f〜N）; fenh，I（f ^ amb）....; fenh，N（f ^ amb）; gp（f〜 I）... gp（f〜N）; D（f〜I）... D（f〜N））获得非歧义解析参数（f〜res; fres，125）。

7. 发明申请

WO2011073210A1 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：一种将第一参数空间音频信号转换为第二参数空间音频信号的装置和方法
公开(公告)号：WO2011073210A1
公开(公告)日：2011-06-23
申请号：PCT/EP2010/069669
申请日：2010-12-14
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , SCHULTZ-AMLING, Richard , KÜCH, Fabian , KALLINGER, Markus , DEL GALDO, Giovanni , THIERGART, Oliver , MAHNE, Dirk , KUNTZ, Achim
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：一种用于将表示空间音频场景中的第一收听位置或第一收听方向的第一参数空间音频信号转换成表示第二收听位置或第二收听方向的第二参数空间音频信号（112,114）的装置（300）描述了所述装置，所述装置包括：空间音频信号修改单元（301,302），其适于根据所述第一收听位置或所述第一聆听方向的改变来修改所述第一参数空间音频信号（212,214），以便获得所述第二参数空间音频信号（212,214），其中所述第二收听位置或所述第二聆听方向对应于由所述改变改变的所述第一收听位置或所述第一聆听方向。

8. 发明申请

WO2010128136A1 AUDIO FORMAT TRANSCODER 审中-公开
标题翻译：音频格式转换器
公开(公告)号：WO2010128136A1
公开(公告)日：2010-11-11
申请号：PCT/EP2010/056252
申请日：2010-05-07
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , THIERGART, Oliver , FALCH, Cornelia , KÜCH, Fabian , DEL GALDO, Giovanni , HERRE, Jürgen , KALLINGER, Markus
发明人： THIERGART, Oliver , FALCH, Cornelia , KÜCH, Fabian , DEL GALDO, Giovanni , HERRE, Jürgen , 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），该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成转换信号的转换器（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。

9. 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.

10. 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).

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