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51. 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.

52. 发明申请

WO2019012133A1 CONCEPT FOR GENERATING AN ENHANCED SOUND-FIELD DESCRIPTION OR A MODIFIED SOUND FIELD DESCRIPTION USING A MULTI-LAYER DESCRIPTION 审中-公开
公开(公告)号：WO2019012133A1
公开(公告)日：2019-01-17
申请号：PCT/EP2018/069145
申请日：2018-07-13
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , FRIEDRICH-ALEXANDER-UNIVERSITAET ERLANGEN-NUERNBERG
发明人： HERRE, Jürgen , HABETS, Emanuel
IPC分类号： G10L19/008 , H04S7/00 , G06F3/01 , G10L21/0272
摘要： An apparatus for generating an enhanced sound field description comprises: a sound field generator (100) for generating at least two sound field layer descriptions indicating sound fields with respect to at least one reference location; and a meta data generator (110) for generating meta data relating to spatial information of the sound fields, wherein the sound field descriptions and the meta data constitute the enhanced sound field description. The meta data can be a geometrical information for each layer such as a representative distance to the reference location.

53. 发明申请

WO2018177610A1 APPARATUS AND METHOD FOR DETERMINING A PREDETERMINED CHARACTERISTIC RELATED TO AN ARTIFICIAL BANDWIDTH LIMITATION PROCESSING OF AN AUDIO SIGNAL 审中-公开
公开(公告)号：WO2018177610A1
公开(公告)日：2018-10-04
申请号：PCT/EP2018/025081
申请日：2018-03-29
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , FRIEDRICH-ALEXANDER-UNI VERSITÄT ERLANGEN-NÜRNBERG
发明人： GAMPP, Patrick , UHLE, Christian , DISCH, Sascha , KARAMPOURNIOTIS, ANTonios , HAVENSTEIN, Julia , HELLMUTH, Oliver , HERRE, Jürgen , PROKEIN, Peter
IPC分类号： G10L21/038 , G10L25/69
摘要： An apparatus for determining a predetermined characteristic related to an artificial bandwidth limitation processing of an audio signal comprises a slope evaiuator configured for evaluating a slope of a spectrum of the audio signal to obtain a slope evaluation result. The apparatus comprises a frequency evaiuator configured for evaluating a cut-off frequency of the spectrum of the audio signal to obtain a frequency evaluation result, and comprises a processor for providing an information indicating that the audio signal comprises the predetermined characteristic dependent on an evaluation of the slope evaluation result and an evaluation of the frequency evaluation result.

54. 发明申请

WO2018091618A1 APPARATUS AND METHOD FOR DECOMPOSING AN AUDIO SIGNAL USING A VARIABLE THRESHOLD 审中-公开
公开(公告)号：WO2018091618A1
公开(公告)日：2018-05-24
申请号：PCT/EP2017/079520
申请日：2017-11-16
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , FRIEDRICH-ALEXANDER-UNIVERSITAET ERLANGEN-NUERNBERG
发明人： ADAMI, Alexander , HERRE, Jürgen , DISCH, Sascha , GHIDO, Florin
IPC分类号： G10L21/0272
摘要： An apparatus for decomposing an audio signal into a background component signal and a foreground component signal, comprises: a block generator (110) for generating a time sequence of blocks of audio signal values; an audio signal analyzer (120) for determining a characteristic of a current block of the audio signal and for determining a variability of the characteristic within a group of blocks comprising at least two blocks of the sequence of blocks; and a separator (130) for separating the current block into a background portion (140) and a foreground portion (150) wherein the separator (130) is configured to determine (182) a separation threshold based on the variability and to separate the current block into the background component signal (140) and the foreground component signal (150), when the characteristic of the current block is in a predetermined relation to the separation threshold.

55. 发明申请

WO2016156237A1 APPARATUS AND METHOD FOR PROCESSING STEREO SIGNALS FOR REPRODUCTION IN CARS TO ACHIEVE INDIVIDUAL THREE-DIMENSIONAL SOUND BY FRONTAL LOUDSPEAKERS 审中-公开
标题翻译：用于处理车辆中的立体声信号的装置和方法，以通过正面扬声器实现个体三维声音
公开(公告)号：WO2016156237A1
公开(公告)日：2016-10-06
申请号：PCT/EP2016/056618
申请日：2016-03-24
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , FRIEDRICH-ALEXANDER-UNIVERSITAET ERLANGEN-NUERNBERG
发明人： HESS, Wolfgang , HELLMUTH, Oliver , VARGA, Stefan , HABETS, Emanuel , PLOGSTIES, Jan , HERRE, Jürgen
IPC分类号： H04S5/00 , H04S5/02
CPC分类号： H04S5/02 , H04R2499/13 , H04S5/005 , H04S2400/01
摘要： Apparatus and method for processing stereo signals for reproduction in cars to achieve individual three-dimensional sound by frontal loudspeakers Embodiments provide a digital processor (100) comprising an ambient portion extractor (102) and a spatial effect processing stage (104). The ambient portion extractor (102) is configured to extract an ambient portion from a multi-channel signal. The spatial effect processing stage (104) is configured to generate a spatial effect signal based on the ambient portion of the multi-channel signal. The digital processor (100) is configured to combine (116) the multi-channel signal or a processed version thereof with the spatial effect signal.
摘要翻译：用于处理用于汽车中再现的立体声信号以通过正面扬声器实现单独的三维声音的装置和方法实施例提供一种包括环境部分提取器（102）和空间效果处理级（104）的数字处理器（100）。环境部分提取器（102）被配置为从多信道信号提取环境部分。空间效果处理级（104）被配置为基于多声道信号的环境部分生成空间效果信号。数字处理器（100）被配置为将多声道信号或其处理版本与空间效果信号组合（116）。

56. 发明申请

WO2015010999A1 APPARATUS AND METHOD FOR REALIZING A SAOC DOWNMIX OF 3D AUDIO CONTENT 审中-公开
标题翻译：用于实现3D音频内容的下降的装置和方法
公开(公告)号：WO2015010999A1
公开(公告)日：2015-01-29
申请号：PCT/EP2014/065290
申请日：2014-07-16
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , FRIEDRICH-ALEXANDER-UNIVERSITÄT ERLANGEN-NÜRNBERG
发明人： DISCH, Sascha , FUCHS, Harald , HELLMUTH, Oliver , HERRE, Jürgen , MURTAZA, Adrian , RIDDERBUSCH, Falko , TERENTIV, Leon , PAULUS, Jouni
IPC分类号： G10L19/008 , H04S3/00
CPC分类号： H04S3/02 , G10L19/008 , H04S3/00 , H04S3/006 , H04S3/008 , H04S7/305 , H04S2400/01 , H04S2400/03 , H04S2400/11 , H04S2400/13 , H04S2420/03
摘要： An apparatus for generating one or more audio output channels is provided. The apparatus comprises a parameter processor (110) for calculating output channel mixing information and a downmix processor (120) for generating the one or more audio output channels. The downmix processor (120) is configured to receive an audio transport signal comprising one or more audio transport channels, wherein two or more audio object signals are mixed within the audio transport signal, and wherein the number of the one or more audio transport channels is smaller than the number of the two or more audio object signals. The audio transport signal depends on a first mixing rule and on a second mixing rule. The first mixing rule indicates how to mix the two or more audio object signals to obtain a plurality of premixed channels. Moreover, the second mixing rule indicates how to mix the plurality of premixed channels to obtain the one or more audio transport channels of the audio transport signal. The parameter processor (110) is configured to receive information on the second mixing rule, wherein the information on the second mixing rule indicates how to mix the plurality of premixed signals such that the one or more audio transport channels are obtained. Moreover, the parameter processor (110) is configured to calculate the output channel mixing information depending on an audio objects number indicating the number of the two or more audio object signals, depending on a premixed channels number indicating the number of the plurality of premixed channels, and depending on the information on the second mixing rule. The downmix processor (120) is configured to generate the one or more audio output channels from the audio transport signal depending on the output channel mixing information.
摘要翻译：提供一种用于产生一个或多个音频输出通道的装置。该装置包括用于计算输出通道混合信息的参数处理器（110）和用于产生一个或多个音频输出通道的下混处理器（120）。下混合处理器（120）被配置为接收包括一个或多个音频传输信道的音频传输信号，其中在音频传输信号内混合两个或更多个音频对象信号，并且其中一个或多个音频传输信道的数目为小于两个或更多个音频对象信号的数量。音频传输信号取决于第一混合规则和第二混合规则。第一混合规则指示如何混合两个或多个音频对象信号以获得多个预混频道。此外，第二混合规则指示如何混合多个预混频道以获得音频传输信号的一个或多个音频传输信道。参数处理器（110）被配置为接收关于第二混合规则的信息，其中关于第二混合规则的信息指示如何混合多个预混合信号，使得获得一个或多个音频传输信道。此外，参数处理器（110）被配置为根据指示多个预混频道的数量的预设频道号，根据指示两个或多个音频对象信号的数量的音频对象号码来计算输出频道混合信息，并且取决于关于第二混合规则的信息。下混合处理器（120）被配置为根据输出信道混合信息从音频传输信号产生一个或多个音频输出信道。

57. 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。

58. 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。

59. 发明申请

WO2014053548A1 ENCODER, DECODER AND METHODS FOR BACKWARD COMPATIBLE DYNAMIC ADAPTION OF TIME/FREQUENCY RESOLUTION IN SPATIAL-AUDIO-OBJECT-CODING 审中-公开
标题翻译：编码器，解码器和后向兼容动态适应时间/频率分辨率在空间 - 音频对象编码中的方法
公开(公告)号：WO2014053548A1
公开(公告)日：2014-04-10
申请号：PCT/EP2013/070551
申请日：2013-10-02
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , FRIEDRICH-ALEXANDER-UNIVERSITAET ERLANGEN-NUERNBERG
发明人： DISCH, Sascha , PAULUS, Jouni , EDLER, Bernd , HELLMUTH, Oliver , HERRE, Jürgen , KASTNER, Thorsten
IPC分类号： G10L19/025 , G10L19/008
CPC分类号： G10L19/008 , G10L19/02 , G10L19/0204 , G10L19/025 , G10L19/20
摘要： A decoder for generating an audio output signal comprising one or more audio output channels from a downmix signal comprising a plurality of time-domain downmix samples is provided. The downmix signal encodes two or more audio object signals. The decoder comprises a window-sequence generator (134) for determining a plurality of analysis windows, wherein each of the analysis windows comprises a plurality of time-domain downmix samples of the downmix signal. Each analysis window of the plurality of analysis windows has a window length indicating the number of the time-domain downmix samples of said analysis window. The window-sequence generator (134) is configured to determine the plurality of analysis windows so that the window length of each of the analysis windows depends on a signal property of at least one of the two or more audio object signals. Moreover, the decoder comprises a t/f-analysis module (135) for transforming the plurality of time-domain downmix samples of each analysis window of the plurality of analysis windows from a time-domain to a time-frequency domain depending on the window length of said analysis window, to obtain a transformed downmix. Furthermore, the decoder comprises an un-mixing unit (136) for un-mixing the transformed downmix based on parametric side information on the two or more audio object signals to obtain the audio output signal. Moreover, an encoder is provided.
摘要翻译：提供了一种用于从包括多个时域下混样本的降混信号产生包括一个或多个音频输出通道的音频输出信号的解码器。下混合信号编码两个或更多个音频对象信号。解码器包括用于确定多个分析窗口的窗口序列生成器（134），其中每个分析窗口包括下混合信号的多个时域下混样本。多个分析窗口的每个分析窗口具有指示所述分析窗口的时域缩混样本数的窗口长度。窗口序列生成器（134）被配置为确定多个分析窗口，使得每个分析窗口的窗口长度取决于两个或更多个音频对象信号中的至少一个的信号属性。此外，解码器包括在/ f分析模块（135），用于根据窗口长度将多个分析窗口中的每个分析窗口的多个时域下混样本从时域变换到时间 - 频域的分析窗口，以获得一个转换的下混。此外，解码器包括用于基于关于两个或更多个音频对象信号的参数侧信息来解混合变换的下混合的解混合单元（136）以获得音频输出信号。此外，提供了编码器。

60. 发明申请

WO2014023477A1 APPARATUS AND METHODS FOR ADAPTING AUDIO INFORMATION IN SPATIAL AUDIO OBJECT CODING 审中-公开
标题翻译：适用于空间音频对象编码的音频信息的装置和方法
公开(公告)号：WO2014023477A1
公开(公告)日：2014-02-13
申请号：PCT/EP2013/063703
申请日：2013-06-28
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , FRIEDRICH-ALEXANDER-UNIVERSITAET ERLANGEN-NUERNBERG
发明人： KASTNER, Thorsten , HERRE, Jürgen , TERENTIV, Leon , HELLMUTH, Oliver , PAULUS, Jouni , RIDDERBUSCH, Falko
IPC分类号： G10L19/008 , G10L19/16
CPC分类号： G10L19/008 , G10L19/173 , H04S2420/03
摘要： An apparatus for adapting input audio information, encoding one or more audio objects, to obtain adapted audio information is provided. The input audio information comprises two or more input audio downmix channels and further comprises input parametric side information. The adapted audio information comprises one or more adapted audio downmix channels and further comprises adapted parametric side information. The apparatus comprises a downmix signal modifier (110) for adapting, depending on adaptation information, the two or more input audio downmix channels to obtain the one or more adapted audio downmix channels. Moreover, the apparatus comprises a parametric side information adapter (120) for adapting, depending on the adaptation information, the input parametric side information to obtain the adapted parametric side information.
摘要翻译：提供了一种用于调整输入音频信息，编码一个或多个音频对象以获得适配音频信息的装置。输入音频信息包括两个或多个输入音频下混频道，并且还包括输入参数侧信息。适应的音频信息包括一个或多个适应的音频下混通道，并且还包括适配的参数侧信息。该装置包括下混合信号修改器（110），用于根据自适应信息适应两个或多个输入音频下混通道以获得一个或多个适配音频下混通道。此外，该装置包括参数侧信息适配器（120），用于根据自适应信息调整输入参数侧信息以获得适配的参数侧信息。

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