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21. 发明授权

US08155971B2 Audio decoding of multi-audio-object signal using upmixing 有权
标题翻译：使用上混音多声道对象信号的音频解码
公开(公告)号：US08155971B2
公开(公告)日：2012-04-10
申请号：US12253442
申请日：2008-10-17
申请人： Oliver Hellmuth , Johannes Hilpert , Leonid Terentiev , Cornelia Falch , Andreas Hoelzer , Juergen Herre
发明人： Oliver Hellmuth , Johannes Hilpert , Leonid Terentiev , Cornelia Falch , Andreas Hoelzer , Juergen Herre
IPC分类号： G10L19/00
CPC分类号： G10L19/04 , G10L19/008 , G10L19/20 , H04S3/002 , H04S2420/03 , H04S2420/07
摘要： A method for decoding a multi-audio-object signal having audio signals of first and second types encoded therein, the multi-audio-object signal having a downmix signal and side information having level information of the audio signals of the first and second types in a first predetermined time/frequency resolution, the method including computing a prediction coefficient matrix C based on the level information; and up-mixing the downmix signal based on the prediction coefficients to obtain a first and/or a second up-mix audio signal approximating the audio signals of the first and second types, respectively, wherein up-mixing yields the first and/or second up-mix signals S1 and S2 from the downmix signal d according to a computation representable by ( S 1 S 2 ) = D - 1 ⁢ { ( 1 C ) ⁢ d + H } , with “1” denoting—depending on the number of channels of d—a scalar, or an identity matrix, and D−1 being a matrix uniquely determined by a downmix prescription according to which the audio signals of the first and second types are downmixed into the downmix signal, and which is also included by the side information, and H being a term independent from d.
摘要翻译：一种对其中编码有第一和第二类型的音频信号的多音频对象信号进行解码的方法，具有降混信号的多音频对象信号和具有第一和第二类型的音频信号的电平信息的侧信息第一预定时间/频率分辨率，所述方法包括基于所述电平信息来计算预测系数矩阵C; 以及基于所述预测系数对所述下混合信号进行加混，以获得分别接近所述第一类型和第二类型的音频信号的第一和/或第二混合音频信号，其中上混合产生所述第一和/ 根据由（S 1 S 2）= D-1 {（1 C）d + H）表示的计算，来自下混合信号d的混合信号S1和S2，其中“1”表示取决于数字的d-a标量或单位矩阵的信道，D-1是由缩混处方唯一确定的矩阵，根据该处理，第一和第二类型的音频信号被混合到下混合信号中，并且还包括通过侧面信息，H是独立于d的术语。

22. 发明授权

US08139775B2 Concept for combining multiple parametrically coded audio sources 有权
标题翻译：用于组合多个参数编码音频源的概念
公开(公告)号：US08139775B2
公开(公告)日：2012-03-20
申请号：US11739544
申请日：2007-04-24
申请人： Johannes Hilpert , Juergen Herre , Karsten Linzmeier , Oliver Hellmuth , Thorsten Kastner
发明人： Johannes Hilpert , Juergen Herre , Karsten Linzmeier , Oliver Hellmuth , Thorsten Kastner
IPC分类号： H04R5/00
CPC分类号： H04N7/15 , G10L19/008
摘要： According to the present invention, multiple parametrically encoded audio signals can be efficiently combined using an audio signal generator, which generates an audio output signal by combining the down-mix channels and the associated parameters of the audio signals directly within the parameter domain, i.e. without reconstructing or decoding the individual input audio signals prior to the generation of the audio output signal. This is achieved by direct mixing of the associated down-mix channels of the individual input signals. It is one key feature of the present invention that the combination of the down-mix channels is achieved by simple, computationally inexpensive arithmetic operations.
摘要翻译：根据本发明，可以使用音频信号发生器有效地组合多个参数编码的音频信号，音频信号发生器通过直接在参数域内组合缩减混音信道和音频信号的相关参数来生成音频输出信号，即，在产生音频输出信号之前重建或解码各个输入音频信号。这通过直接混合各个输入信号的相关联的低通滤波通道实现。本发明的一个关键特征是通过简单的，计算上便宜的算术运算来实现降混信道的组合。

23. 发明申请

US20060020958A1 Apparatus and method for robust classification of audio signals, and method for establishing and operating an audio-signal database, as well as computer program 有权
公开(公告)号：US20060020958A1
公开(公告)日：2006-01-26
申请号：US10931635
申请日：2004-08-31
申请人： Eric Allamanche , Juergen Herre , Oliver Hellmuth , Thorsten Kastner , Markus Cremer
发明人： Eric Allamanche , Juergen Herre , Oliver Hellmuth , Thorsten Kastner , Markus Cremer
IPC分类号： H04H9/00
CPC分类号： G10L25/48
摘要： An apparatus for producing a fingerprint signal from an audio signal includes a means for calculating energy values for frequency bands of segments of the audio signal which are successive in time, so as to obtain, from the audio signal, a sequence of vectors of energy values, a means for scaling the energy values to obtain a sequence of scaled vectors, and a means for temporal filtering of the sequence of scaled vectors to obtain a filtered sequence which represents the fingerprint, or from which the fingerprint may be derived. Thus, a fingerprint is produced which is robust against disturbances due to problems associated with coding or with transmission channels, and which is especially suited for mobile radio applications.

24. 发明授权

US09064498B2 Apparatus and method for processing an audio signal for speech enhancement using a feature extraction 有权
标题翻译：用于使用特征提取来处理用于语音增强的音频信号的装置和方法
公开(公告)号：US09064498B2
公开(公告)日：2015-06-23
申请号：US13019835
申请日：2011-02-02
申请人： Christian Uhle , Oliver Hellmuth , Bernhard Grill , Falko Ridderbusch
发明人： Christian Uhle , Oliver Hellmuth , Bernhard Grill , Falko Ridderbusch
IPC分类号： G10L19/02 , G10L21/0208 , G10L21/0216 , G10L25/30
CPC分类号： G10L21/0208 , G10L21/0216 , G10L25/30
摘要： An apparatus for processing an audio signal to obtain control information for a speech enhancement filter has a feature extractor for extracting at least one feature per frequency band of a plurality of frequency bands of a short-time spectral representation of a plurality of short-time spectral representations, where the at least one feature represents a spectral shape of the short-time spectral representation in the frequency band. The apparatus additionally has a feature combiner for combining the at least one feature for each frequency band using combination parameters to obtain the control information for the speech enhancement filter for a time portion of the audio signal. The feature combiner can use a neural network regression method, which is based on combination parameters determined in a training phase for the neural network.
摘要翻译：用于处理音频信号以获得用于语音增强滤波器的控制信息的装置具有特征提取器，用于提取多个短时频谱的短时频谱表示的多个频带中的每个频带的至少一个特征表示，其中至少一个特征表示频带中的短时间频谱表示的频谱形状。该装置另外具有特征组合器，用于使用组合参数来组合每个频带的至少一个特征，以获得用于音频信号的时间部分的语音增强滤波器的控制信息。特征组合器可以使用神经网络回归方法，其基于在神经网络的训练阶段中确定的组合参数。

25. 发明授权

US09060236B2 Apparatus for providing an upmix signal representation on the basis of a downmix signal representation, apparatus for providing a bitstream representing a multi-channel audio signal, methods, computer program and bitstream using a distortion control signaling 有权
标题翻译：用于基于下混信号表示提供上混合信号表示的装置，用于提供表示多声道音频信号的比特流的装置，使用失真控制信令的方法，计算机程序和比特流
公开(公告)号：US09060236B2
公开(公告)日：2015-06-16
申请号：US13450027
申请日：2012-04-18
申请人： Jonas Engdegard , Heiko Purnhagen , Juergen Herre , Leon Terentiv , Cornelia Falch , Oliver Hellmuth
发明人： Jonas Engdegard , Heiko Purnhagen , Juergen Herre , Leon Terentiv , Cornelia Falch , Oliver Hellmuth
IPC分类号： H04R5/00 , G10L19/00 , G10L21/00 , H04S3/00 , G10L19/008
CPC分类号： H04S3/008 , G10L19/008 , H04S2420/03
摘要： An apparatus for providing an upmix signal representation on the basis of a downmix signal representation and an object-related parametric information, which are included in a bitstream representation of an audio content, and in dependence on a rendering information, has a distortion limiter configured to adjust upmix parameters using a distortion control scheme to avoid or limit audible distortions which are caused by an inappropriate choice of rendering parameters. The distortion limiter is configured to obtain a distortion limitation control parameter, which is included in the bitstream representation of the audio content, and to adjust a distortion control scheme in dependence on the distortion limitation control parameter.
摘要翻译：基于下混合信号表示和包含在音频内容的比特流表示中并且依赖于呈现信息的对象相关参数信息来提供上混合信号表示的装置具有失真限制器，其被配置为使用失真控制方案调整上混参数，以避免或限制由不适当选择渲染参数引起的可听失真。失真限制器被配置为获得包括在音频内容的比特流表示中的失真限制控制参数，并且根据失真限制控制参数来调整失真控制方案。

26. 发明授权

US07081581B2 Method and device for characterizing a signal and method and device for producing an indexed signal 有权
标题翻译：用于表征信号的方法和装置以及用于产生索引信号的方法和装置
公开(公告)号：US07081581B2
公开(公告)日：2006-07-25
申请号：US10469468
申请日：2002-02-26
申请人： Eric Allamanche , Juergen Herre , Oliver Hellmuth , Bernhard Froeba
发明人： Eric Allamanche , Juergen Herre , Oliver Hellmuth , Bernhard Froeba
IPC分类号： G10H7/00
CPC分类号： G10H1/0033 , G10H1/0008 , G10H2210/081 , G10H2240/061 , G10H2240/135 , G10H2250/235 , G10H2250/601 , G10L19/0204
摘要： In a method for characterizing a signal, which represents an audio content, a measure for a tonality of the signal is determined, whereupon a statement is made about the audio content of the signal based on the measure for the tonality of the signal. The measure for the tonality of the signal for the content analysis is robust against a signal distortion, such as by MP3 encoding, and has a high correlation to the content of the examined signal.
摘要翻译：在表示音频内容的信号的表征的方法中，确定用于信号的音调的度量，由此基于信号的音调的度量来声明信号的音频内容。用于内容分析的信号的音调的度量对于诸如通过MP3编码的信号失真是鲁棒的，并且与所检查的信号的内容具有高相关性。

27. 发明授权

US08571877B2 Apparatus for providing an upmix signal representation on the basis of the downmix signal representation, apparatus for providing a bitstream representing a multi-channel audio signal, methods, computer programs and bitstream representing a multi-channel audio signal using a linear combination parameter 有权
标题翻译：用于基于下混信号表示提供上混合信号表示的装置，用于提供表示多声道音频信号的比特流的装置，表示使用线性组合参数的多声道音频信号的方法，计算机程序和比特流
公开(公告)号：US08571877B2
公开(公告)日：2013-10-29
申请号：US13475084
申请日：2012-05-18
申请人： Jonas Engdegard , Heiko Purnhagen , Juergen Herre , Cornelia Falch , Oliver Hellmuth , Leon Terentiv
发明人： Jonas Engdegard , Heiko Purnhagen , Juergen Herre , Cornelia Falch , Oliver Hellmuth , Leon Terentiv
IPC分类号： G10L19/00
CPC分类号： G10L19/008
摘要： An apparatus for providing an upmix signal representation on the basis of a downmix signal representation and an object-related parametric information, which are included in a bitstream representation of an audio content, in independence on a user-specified rendering matrix, the apparatus has a distortion limiter configured to obtain a modified rendering matrix using a linear combination of a user-specified rendering matrix in a target rendering matrix in dependence on a linear combination parameter. The apparatus also has a signal processor configured to obtain the upmix signal representation on the basis of the downmix signal representation and the object-related parametric information using the modified rendering matrix. The apparatus is also configured to evaluate a bitstream element representing the linear combination parameter in order to obtain the linear combination parameter.
摘要翻译：一种用于根据用户指定的渲染矩阵独立地包括在音频内容的比特流表示中的下混信号表示和对象相关的参数信息来提供上混合信号表示的装置，该装置具有失真限制器被配置为根据线性组合参数在目标渲染矩阵中使用用户指定的渲染矩阵的线性组合来获得修改的渲染矩阵。该装置还具有信号处理器，其被配置为基于下混合信号表示和使用修改的渲染矩阵的对象相关参数信息来获得上混信号表示。该装置还被配置为评估表示线性组合参数的比特流元件，以便获得线性组合参数。

28. 发明授权

US08332059B2 Apparatus and method for synchronizing additional data and base data 有权
标题翻译：用于同步附加数据和基础数据的装置和方法
公开(公告)号：US08332059B2
公开(公告)日：2012-12-11
申请号：US11692055
申请日：2007-03-27
申请人： Juergen Herre , Oliver Hellmuth , Andreas Hoelzer , Stefan Geyersberger
发明人： Juergen Herre , Oliver Hellmuth , Andreas Hoelzer , Stefan Geyersberger
IPC分类号： G06F17/00
CPC分类号： H04H20/28 , G10L19/008 , G11B27/031 , G11B27/10 , G11B27/105 , G11B2220/2545 , H04H20/89
摘要： For adding additional data, such as multi-channel extension data, to base data, such as conventional stereo data, a test fingerprint of test data relating to a test time instant of the test data is provided. The test data equals the additional data or the base data or depends on the additional data or the base data in parametric manner. Using the test fingerprint, reference time instant information is determined, which depends on a reference time instant in reference data, the reference data being the conventional stereo data. Finally, the additional data or the base data is manipulated, namely using the reference time instant information and the test time instant information, to obtain manipulated data, by which synchronous reproduction of the data information can be performed. Thus, a robust and flexible possibility for synchronous, especially late extension of base data by additional data is obtained.
摘要翻译：为了将诸如多通道扩展数据的附加数据添加到诸如常规立体数据的基础数据，提供了与测试数据的测试时刻有关的测试数据的测试指纹。测试数据等于附加数据或基本数据，或者以参数方式取决于附加数据或基本数据。使用测试指纹，确定参考时刻信息，其取决于参考数据中的参考时刻，参考数据是常规立体声数据。最后，使用参考时刻信息和测试时刻信息来操纵附加数据或基本数据，以获得可以执行数据信息的同步再现的操纵数据。因此，获得了通过附加数据同步，特别是延迟基础数据的鲁棒且灵活的可能性。

29. 发明授权

US08315396B2 Apparatus and method for generating audio output signals using object based metadata 有权
标题翻译：使用基于对象的元数据生成音频输出信号的装置和方法
公开(公告)号：US08315396B2
公开(公告)日：2012-11-20
申请号：US12248319
申请日：2008-10-09
申请人： Stephan Schreiner , Wolfgang Fiesel , Matthias Neusinger , Oliver Hellmuth , Ralph Sperschneider
发明人： Stephan Schreiner , Wolfgang Fiesel , Matthias Neusinger , Oliver Hellmuth , Ralph Sperschneider
IPC分类号： H04R5/00 , H04B1/00
CPC分类号： H04S3/008
摘要： An apparatus for generating at least one audio output signal representing a superposition of at least two different audio objects comprises a processor for processing an audio input signal to provide an object representation of the audio input signal, where this object representation can be generated by a parametrically guided approximation of original objects using an object downmix signal. An object manipulator individually manipulates objects using audio object based metadata referring to the individual audio objects to obtain manipulated audio objects. The manipulated audio objects are mixed using an object mixer for finally obtaining an audio output signal having one or several channel signals depending on a specific rendering setup.
摘要翻译：用于产生表示至少两个不同音频对象的叠加的至少一个音频输出信号的装置包括处理器，用于处理音频输入信号以提供音频输入信号的对象表示，其中该对象表示可以通过参数生成使用对象缩混信号对原始对象进行引导近似。对象操纵器使用基于音频对象的元数据单独地操纵对象，该元数据参考各个音频对象以获得被操纵的音频对象。使用对象混合器混合操纵的音频对象，以根据特定的渲染设置最终获得具有一个或多个通道信号的音频输出信号。

30. 发明授权

US08065260B2 Device and method for analyzing an information signal 有权
标题翻译：用于分析信息信号的装置和方法
公开(公告)号：US08065260B2
公开(公告)日：2011-11-22
申请号：US11557023
申请日：2006-11-06
申请人： Juergen Herre , Eric Allamanche , Oliver Hellmuth , Thorsten Kastner
发明人： Juergen Herre , Eric Allamanche , Oliver Hellmuth , Thorsten Kastner
IPC分类号： G06F9/44 , G06N7/02 , G06N7/06
CPC分类号： G10L25/48
摘要： For analyzing an information signal having a sequence of blocks of information units, wherein a plurality of consecutive blocks of the sequence of blocks represents an information entity, using a sequence of fingerprints for the sequence of blocks, identification results are provided for consecutive fingerprints, wherein an identification result represents an association of a block of information units with a predetermined information entity. Then at least two hypotheses are formed from the identification results for the consecutive fingerprints, wherein a first hypothesis is an assumption for the association of the sequence of blocks with a first information entity, and wherein the second hypothesis is an assumption for the association of the sequence of blocks with the second information entity. Then various hypotheses are examined to obtain an examination result on the basis of which there is then made a statement on the information signal. This achieves a meaningful and reliable time-continuous analysis of an information signal.
摘要翻译：为了分析具有信息单元块序列的信息信号，其中块序列的多个连续块表示信息实体，使用块序列的指纹序列，为连续指纹提供识别结果，其中识别结果表示信息单元块与预定信息实体的关联。然后，从连续指纹的识别结果形成至少两个假设，其中第一假设是块的序列与第一信息实体的关联的假设，并且其中第二假设是关于具有第二信息实体的块序列。然后检查各种假设以获得检查结果，然后根据该结果对信息信号进行声明。这实现了对信息信号的有意义和可靠的时间连续分析。

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