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1. 发明申请

WO2011045409A1 APPARATUS, METHOD AND COMPUTER PROGRAM FOR PROVIDING ONE OR MORE ADJUSTED PARAMETERS FOR PROVISION OF AN UPMIX SIGNAL REPRESENTATION ON THE BASIS OF A DOWNMIX SIGNAL REPRESENTATION AND A PARAMETRIC SIDE INFORMATION ASSOCIATED WITH THE DOWNMIX SIGNAL REPRESENTATION, USING AN AVERAGE VALUE 审中-公开
标题翻译：提供一个或多个调整参数的装置，方法和计算机程序，用于提供基于下行信号表示的基于UPMIX信号表示和与下行信号相关的参考信息
公开(公告)号：WO2011045409A1
公开(公告)日：2011-04-21
申请号：PCT/EP2010/065503
申请日：2010-10-15
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , FALCH, Cornelia , HERRE, Jürgen , TERENTIEV, Leonid
发明人： FALCH, Cornelia , HERRE, Jürgen , TERENTIEV, Leonid
IPC分类号： G10L19/00
CPC分类号： G10L19/008
摘要： An apparatus for providing one or more adjusted parameters for a provision of an upmix signal representation on the basis of a downmix signal representation and a parametric side information associated with the downmix signal representation comprises a parameter adjuster. The parameter adjuster is configured to receive one or more parameters and to provide, on the basis thereof, one or more adjusted parameters. The parameter adjuster is configured to provide the one or more adjusted parameters in dependence on an average value of a plurality of parameter values, such that a distortion of the upmix signal representation caused by the use of non-optimal parameters is reduced at least for parameters deviating from optimal parameters by more than a predetermined deviation.
摘要翻译：一种用于提供一个或多个经调整参数的装置，用于根据降混信号表示和与下混合信号表示相关联的参数侧信息来提供上混信号表示，包括参数调整器。参数调整器被配置为接收一个或多个参数，并且在其基础上提供一个或多个调整参数。参数调整器被配置为根据多个参数值的平均值来提供一个或多个经调整的参数，使得至少由于使用非最佳参数引起的上混信号表示的失真至少对于参数偏离最佳参数大于预定偏差。

2. 发明申请

WO2010149700A1 AUDIO SIGNAL DECODER, METHOD FOR DECODING AN AUDIO SIGNAL AND COMPUTER PROGRAM USING CASCADED AUDIO OBJECT PROCESSING STAGES 审中-公开
标题翻译：音频信号解码器，使用CASCADED音频对象处理阶段解码音频信号的方法和计算机程序
公开(公告)号：WO2010149700A1
公开(公告)日：2010-12-29
申请号：PCT/EP2010/058906
申请日：2010-06-23
申请人： FRAUNHOFER GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , HELLMUTH, Oliver , FALCH, Cornelia , HERRE, Jürgen , HILPERT, Johannes , RIDDERBUSCH, Falko , TERENTIEV, Leonid
发明人： HELLMUTH, Oliver , FALCH, Cornelia , HERRE, Jürgen , HILPERT, Johannes , RIDDERBUSCH, Falko , TERENTIEV, Leonid
IPC分类号： G10L19/00 , G10L19/14 , H04S7/00
CPC分类号： G10L19/20 , G10H1/361 , G10H2210/301 , G10L19/008 , H04S7/30 , H04S2400/11 , H04S2420/07
摘要： An audio signal decoder for providing an upmix signal representation in dependence on a downmix signal representation and an object-related parametric information comprises an object separator configured to decompose the downmix signal representation, to provide a first audio information describing a first set of one or more audio objects of a first audio object type and a second audio information describing a second set of one or more audio objects of a second audio object type, in dependence on the downmix signal representation and using at least a part of the object-related parametric information. The audio signal decoder also comprises an audio signal processor configured to receive the second audio information and to process the second audio information in dependence on the object-related parametric information, to obtain a processed version of the second audio information. The audio signal decoder also comprises an audio signal combiner configured to combine the first audio information with the processed version of the second audio information, to obtain the upmix signal representation.
摘要翻译：音频信号解码器，用于根据降混信号表示和对象相关的参数信息提供上混合信号表示，包括被配置成分解下混合信号表示的对象分离器，以提供描述第一组一个或多个第一音频对象类型的音频对象和描述第二音频对象类型的一个或多个音频对象的第二组的第二音频信息，其依赖于下混合信号表示，并且使用至少一部分与对象相关的参数信息。音频信号解码器还包括音频信号处理器，该音频信号处理器被配置为接收第二音频信息并根据对象相关参数信息处理第二音频信息，以获得第二音频信息的处理版本。音频信号解码器还包括被配置为组合第一音频信息和第二音频信息的处理版本的音频信号组合器，以获得上混合信号表示。

3. 发明申请

WO2010125104A1 APPARATUS FOR PROVIDING ONE OR MORE ADJUSTED PARAMETERS FOR A PROVISION OF AN UPMIX SIGNAL REPRESENTATION ON THE BASIS OF A DOWNMIX SIGNAL REPRESENTATION, AUDIO SIGNAL DECODER, AUDIO SIGNAL TRANSCODER, AUDIO SIGNAL ENCODER, AUDIO BITSTREAM, METHOD AND COMPUTER PROGRAM USING AN OBJECT-RELATED PARAMETRIC INFORMATION 审中-公开
标题翻译：提供一个或多个调整参数的装置，用于提供基于下标信号表示，音频信号解码器，音频信号转换器，音频信号编码器，音频比特，方法AN的UPMIX信号表示
公开(公告)号：WO2010125104A1
公开(公告)日：2010-11-04
申请号：PCT/EP2010/055717
申请日：2010-04-28
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , DOLBY INTERNATIONAL AB , FRIEDRICH-ALEXANDER-UNIVERSITÄT ERLANGEN-NÜRNBERG , HERRE, Jürgen , HOELZER, Andreas , TERENTIEV, Leonid , KASTNER, Thorsten , FALCH, Cornelia , PURNHAGEN, Heiko , ENGDEGARD, Jonas
发明人： HERRE, Jürgen , HOELZER, Andreas , TERENTIEV, Leonid , KASTNER, Thorsten , FALCH, Cornelia , PURNHAGEN, Heiko , ENGDEGARD, Jonas
IPC分类号： G10L19/00 , G10L19/14
CPC分类号： G10L19/008 , G10L19/20
摘要： An apparatus for providing one or more adjusted parameters for a provision of an upmix signal representation on the basis of a downmix signal representation and an object-related parametric information comprises a parameter adjuster. The parameter adjuster is configured to receive one or more input parameters and to provide, on the basis thereof, one or more adjusted parameters. The parameter adjuster is configured to provide the one or more adjusted parameters in dependence on the one or more input parameters and the object-related parametric information, such that a distortion of the upmix signal representation caused by the use of non-optimal parameters is reduced at least for input parameters deviating from optimal parameters by more than a predetermined deviation.
摘要翻译：基于降混信号表示和对象相关参数信息提供用于提供上混合信号表示的一个或多个调整参数的装置包括参数调整器。参数调整器被配置为接收一个或多个输入参数并且在其基础上提供一个或多个调整的参数。参数调整器被配置为根据一个或多个输入参数和对象相关参数信息来提供一个或多个经调整的参数，使得由使用非最优参数引起的上混信号表示的失真减少至少对于偏离最佳参数的输入参数大于预定偏差。

4. 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。

5. 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。

6. 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。

7. 发明申请

WO2011042464A1 MULTI-MODE AUDIO SIGNAL DECODER, MULTI-MODE AUDIO SIGNAL ENCODER, METHODS AND COMPUTER PROGRAM USING A LINEAR-PREDICTION-CODING BASED NOISE SHAPING 审中-公开
标题翻译：多模式音频信号解码器，多模式音频信号编码器，使用基于线性预测编码的噪声形状的方法和计算机程序
公开(公告)号：WO2011042464A1
公开(公告)日：2011-04-14
申请号：PCT/EP2010/064917
申请日：2010-10-06
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. , NEUENDORF, Max , FUCHS, Guillaume , RETTELBACH, Nikolaus , BAECKSTROEM, Tom , LECOMTE, Jèrèmie , HERRE, Jürgen
发明人： NEUENDORF, Max , FUCHS, Guillaume , RETTELBACH, Nikolaus , BAECKSTROEM, Tom , LECOMTE, Jèrèmie , HERRE, Jürgen
IPC分类号： G10L19/02 , G10L19/14
CPC分类号： G10L19/20 , G10L19/022
摘要： A multi-mode audio signal decoder for providing a decoded representation of an audio content on the basis of an encoded representation of the audio content comprises a spectral value determinator configured to obtain sets of decoded spectral coefficients for a plurality of portions of the audio content. The audio signal decoder also comprises a spectrum processor configured to apply a spectral shaping to a set of spectral coefficients, or to a pre-processed version thereof, in dependence on a set of linear-prediction-domain parameters for a portion of the audio content encoded in a linear-prediction mode, and to apply a spectral shaping to a set of decoded spectral coefficients, or a pre-processed version thereof, in dependence on a set of scale factor parameters for a portion of the audio content encoded in a frequency-domain mode. The audio signal decoder comprises a frequency-domain-to-time-domain converter configured to obtain a time-domain representation of the audio content on the basis of a spectrally-shaped set of decoded spectral coefficients for a portion of the audio content encoded in the linear-prediction mode, and to obtain a time domain representation of the audio content on the basis of a spectrally shaped set of decoded spectral coefficients for a portion of the audio content encoded in the frequency domain mode. An audio signal encoder is also described.
摘要翻译：用于基于音频内容的编码表示提供音频内容的解码表示的多模式音频信号解码器包括：频谱值确定器，被配置为获得音频内容的多个部分的解码频谱系数集合。音频信号解码器还包括频谱处理器，其被配置为根据用于音频内容的一部分的一组线性预测域参数将频谱整形应用于一组频谱系数或其预处理版本以线性预测模式编码，并且根据用于以频率编码的音频内容的一部分的一组缩放因子参数将频谱整形应用于一组解码频谱系数或其预处理版本域名模式。音频信号解码器包括频域 - 时域转换器，其被配置为基于用于编码的音频内容的一部分的解码频谱系数的频谱形状集合来获得音频内容的时域表示线性预测模式，并且基于在频域模式中编码的音频内容的一部分的解码频谱系数的频谱整形集合来获得音频内容的时域表示。还描述了音频信号编码器。

8. 发明申请

WO2009039897A1 APPARATUS AND METHOD FOR EXTRACTING AN AMBIENT SIGNAL IN AN APPARATUS AND METHOD FOR OBTAINING WEIGHTING COEFFICIENTS FOR EXTRACTING AN AMBIENT SIGNAL AND COMPUTER PROGRAM 审中-公开
标题翻译：用于提取装置的环境信号的装置和方法以及用于获取提取环境信号和计算机程序的加权系数的方法
公开(公告)号：WO2009039897A1
公开(公告)日：2009-04-02
申请号：PCT/EP2008/002385
申请日：2008-03-26
申请人： FRAUNHOFER - GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , UHLE, Christian , HERRE, Jürgen , GEYERSBERGER, Stefan , RIDDERBUSCH, Falko , WALTER, Andreas , MOSER, Oliver
发明人： UHLE, Christian , HERRE, Jürgen , GEYERSBERGER, Stefan , RIDDERBUSCH, Falko , WALTER, Andreas , MOSER, Oliver
IPC分类号： H04S5/00
CPC分类号： H04R5/04
摘要： An apparatus for extracting an ambient signal from an input audio signal comprises a gain-value determinator configured to determine a sequence of time-varying ambient signal gain values for a given frequency band of the time-frequency distribution of the input audio signal in dependence on the input audio signal. The apparatus comprises a weighter configured to weight one of the sub-band signals representing the given frequency band of the time-frequency-domain representation with the time-varying gain values, to obtain a weighted sub-band signal. The gain-value determinator is configured to obtain one or more quantitative feature-values describing one or more features of the input audio signal and to provide the gain-value as a function of the one or more quantitative feature values such that the gain values are quantitatively dependent on the quantitative values. The gain value determinator is configured to determine the gain values such that ambience components are emphasized over non-ambience components in the weighted sub-band signal.
摘要翻译：一种用于从输入音频信号中提取环境信号的装置包括：增益值确定器，被配置为根据输入音频信号的时间 - 频率分布的给定频带来确定时变环境信号增益值的序列，依赖于输入音频信号。该装置包括被配置为将表示时间 - 频域表示的给定频带的子带信号中的一个与时变增益值加权的权重器，以获得加权子带信号。增益值确定器被配置为获得描述输入音频信号的一个或多个特征的一个或多个定量特征值，并且将增益值提供为一个或多个定量特征值的函数，使得增益值为定量依赖于定量值。增益值确定器被配置为确定增益值，使得氛围分量在加权子带信号中的非环境分量上被强调。

9. 发明申请

WO2008049587A8 APPARATUS AND METHOD FOR GENERATING AN AMBIENT SIGNAL FROM AN AUDIO SIGNAL, APPARATUS AND METHOD FOR DERIVING A MULTI-CHANNEL AUDIO SIGNAL FROM AN AUDIO SIGNAL AND COMPUTER PROGRAM 审中-公开
公开(公告)号：WO2008049587A8
公开(公告)日：2008-05-02
申请号：PCT/EP2007/009197
申请日：2007-10-23
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , UHLE, Christian , HERRE, Jürgen , WALTHER, Andreas , HELLMUTH, Oliver , JANSSEN, Christiaan
发明人： UHLE, Christian , HERRE, Jürgen , WALTHER, Andreas , HELLMUTH, Oliver , JANSSEN, Christiaan
IPC分类号： G10L19/00 , G10L19/02 , H04S5/00 , H04S7/00
摘要： An apparatus for generating an ambient signal from an audio signal comprises means for lossy compression of a representation of the audio signal so as to obtain a compressed representation of the audio signal describing a compressed audio signal. The apparatus for generating the ambient signal further comprises means for calculating a difference between the compressed representation of the audio signal and the representation of the audio signal so as to obtain a discrimination representation. The apparatus further comprises means for providing the ambient signal using the discrimination representation. An apparatus for deriving a multi-channel audio signal from an audio signal comprises an apparatus for generating an ambient signal from an audio signal, an apparatus for providing the audio signal as a front-loudspeaker signal and an apparatus for providing the ambient signal as a back-loudspeaker signal.

10. 发明申请

WO2006108464A1 ADAPTIVE GROUPING OF PARAMETERS FOR ENHANCED CODING EFFICIENCY 审中-公开
标题翻译：用于增强编码效率的参数的自适应分组
公开(公告)号：WO2006108464A1
公开(公告)日：2006-10-19
申请号：PCT/EP2006/001295
申请日：2006-02-13
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , SPERSCHNEIDER, Ralph , HERRE, Jürgen , LINZMEIER, Karsten , HILPERT, Johannes
发明人： SPERSCHNEIDER, Ralph , HERRE, Jürgen , LINZMEIER, Karsten , HILPERT, Johannes
IPC分类号： H03M7/40
CPC分类号： H03M7/40 , G10L19/0017 , G10L19/002 , G10L19/008 , G10L19/0204 , G10L25/18 , H04N19/12 , H04N19/15 , H04N19/196 , H04N19/463 , H04N19/91
摘要： The present invention is based on the finding that parameters including a first set of parameters (130a) of a representation of a first portion of an original signal and including a second set of parameters (130b) of a representation of a second portion of the original signal can be efficiently- encoded, when the parameters are arranged in a first sequence of tuples (134a, 134b) and in a second sequence (136a, 136b) of tuples, wherein the first sequence of tuples comprises tuples of parameters having two parameters from a single portion of the original signal and wherein the second sequence of tuples comprises tuples of parameters having one parameter from the first portion and one parameter from the second portion of the original signal. An efficient encoding can be achieved using a bit estimator to estimate the number of necessary bits to encode the first and the second sequence of tuples, wherein only the sequence of tuples is encoded, that results in the lower number of bits.
摘要翻译：本发明基于以下发现：参数包括原始信号的第一部分的表示的第一组参数（130a），并且包括原始第二部分的表示的第二组参数（130b）当参数被布置在元组的第一序列（134a，134b）和第二序列（136a，136b）中时，可以有效地对信号进行编码，其中元组的第一序列包括具有两个参数的参数的元组，原始信号的单个部分，并且其中第二序列的元组包括具有来自第一部分的一个参数的参数元组和来自原始信号的第二部分的一个参数。可以使用位估计器来实现有效编码，以估计对第一和第二元组序列进行编码的必需位数，其中仅对元组的序列进行编码，导致较低位数。

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