专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

EP1738356B1 APPARATUS AND METHOD FOR GENERATING MULTI-CHANNEL SYNTHESIZER CONTROL SIGNAL AND APPARATUS AND METHOD FOR MULTI-CHANNEL SYNTHESIZING 有权转让
标题翻译：装置和方法，用于生成多声道合成器控制信号的装置和方法的多声道SYNTHESIZEN
公开(公告)号：EP1738356B1
公开(公告)日：2012-11-28
申请号：EP06706309.9
申请日：2006-01-19
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. , Dolby International AB , Koninklijke Philips Electronics N.V.
发明人： NEUSINGER, Matthias , HERRE, Juergen , DISCH, Sascha , PURNHAGEN, Heiko , KJOERLING, Kristofer , ENGDEGARD, Jonas , BREEBAART, J., Koninklijke Philips Electronic N.V. , SCHUIJERS, E., Koninklijke Philips Electronic N.V. , OOMEN, W., Koninklijke Philips Electronic N.V.
IPC分类号： G10L19/14 , H04S5/00
CPC分类号： G10L19/26 , G10L19/008 , G10L2019/0012 , H04S3/008
摘要： On an encoder-side, a multi-channel input signal is analyzed for obtaining smoothing control information, which is to be used by a decoder-side multi-channel synthesis for smoothing quantized transmitted parameters or values derived from the quantized transmitted parameters for providing an improved subjective audio quality in particular for slowly moving point sources and rapidly moving point sources having tonal material such as fast moving sinusoids.

2. 发明公开

EP2375409A1 Audio encoder, audio decoder and related methods for processing multi-channel audio signals using complex prediction 审中-公开
标题翻译：音频编码器，音频解码器和用于使用复杂的预测处理多通道音频信号相关联的方法
公开(公告)号：EP2375409A1
公开(公告)日：2011-10-12
申请号：EP10169432.1
申请日：2010-07-13
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. , Dolby International AB
发明人： PURNHAGEN, Heiko , CARLSSON, Pontus , VILLEMOES, Lars , ROBILLARD, Julien , NEUSINGER, Matthias , HELMRICH, Christian , HILPERT, Johannes , RETTELBACH, Nikolaus , DISCH, Sascha , EDLER, Bernd
IPC分类号： G10L19/00 , G10L19/04
CPC分类号： G10L19/04 , G10L19/008
摘要： An audio encoder and an audio decoder are based on a combination of two audio channels (201, 202) to obtain a first combination signal (204) as a mid signal and a residual signal (205) which can be derived using a predicted side signal derived from the mid signal. The first combination signal and the prediction residual signal are encoded (209) and written (212) into a data stream (213) together with the prediction information (206) derived by an optimizer (207) based on an optimization target (208). A decoder uses the prediction residual signal, the first combination signal and the prediction information to derive a decoded first channel signal and a decoded second channel signal. In an encoder example or in a decoder example, a real-to-imaginary transform can be applied for estimating the imaginary part of the spectrum of the first combination signal. For calculating the prediction signal used in the derivation of the prediction residual signal, the real-valued first combination signal is multiplied by a real portion of the complex prediction information and the estimated imaginary part of the first combination signal is multiplied by an imaginary portion of the complex prediction information.
摘要翻译：到音频解码器的音频编码器，并且基于两个音频信道的组合（201,202），以获得第一组合信号（204）作为一个中间信号和其可以使用预测的侧信号导出的残差信号（205）从中间信号导出。第一组合信号和所述预测残差信号进行编码（209）和写入（212）成数据流（213），在优化目标（208）的基础上通过在优化器（207）导出的所述预测信息（206）连接在一起。解码器使用所述预测残差信号，第一组合信号和预测信息来导出经解码的第一声道信号和解码的第二信道信号。在编码器实施例中或在解码器实施例中，实部 - 虚数变换可以应用用于估计所述第一组合信号的频谱的虚部。用于计算预测残留信号的导出中使用的预测信号，该实值的第一组合信号，乘以的复预测信息和所述第一组合信号的估算虚部实数部分在虚部被-乘以复杂的预测信息。

3. 发明授权

EP2543038B1 Decoding of multi-channel audio signals using complex prediction 有权转让
标题翻译：使用复杂的预测的多通道音频信号的解码
公开(公告)号：EP2543038B1
公开(公告)日：2015-08-26
申请号：EP11709735.2
申请日：2011-03-23
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. , Dolby International AB
发明人： PURNHAGEN, Heiko , CARLSSON, Pontus , VILLEMOES, Lars , ROBILLARD, Julien , NEUSINGER, Matthias , HELMRICH, Christian , HILPERT, Johannes , RETTELBACH, Nikolaus , DISCH, Sascha , EDLER, Bernd
IPC分类号： G10L19/008 , G10L19/04
CPC分类号： G10L19/04 , G10L19/008
摘要： An audio encoder and an audio decoder are based on a combination of two audio channels (201, 202) to obtain a first combination signal (204) as a mid signal and a residual signal (205) which can be derived using a predicted side signal derived from the mid signal. The first combination signal and the prediction residual signal are encoded (209) and written (212) into a data stream (213) together with the prediction information (206) derived by an optimizer (207) based on an optimization target (208). A decoder uses the prediction residual signal, the first combination signal and the prediction information to derive a decoded first channel signal and a decoded second channel signal. In an encoder example or in a decoder example, a real-to-imaginary transform can be applied for estimating the imaginary part of the spectrum of the first combination signal. For calculating the prediction signal used in the derivation of the prediction residual signal, the real-valued first combination signal is multiplied by a real portion of the complex prediction information and the estimated imaginary part of the first combination signal is multiplied by an imaginary portion of the complex prediction information.

4. 发明公开

EP2543038A1 AUDIO ENCODER, AUDIO DECODER AND RELATED METHODS FOR PROCESSING MULTI-CHANNEL AUDIO SIGNALS USING COMPLEX PREDICTION 有权转让
标题翻译：使用复杂的预测的多通道音频信号的解码
公开(公告)号：EP2543038A1
公开(公告)日：2013-01-09
申请号：EP11709735.2
申请日：2011-03-23
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. , Dolby International AB
发明人： PURNHAGEN, Heiko , CARLSSON, Pontus , VILLEMOES, Lars , ROBILLARD, Julien , NEUSINGER, Matthias , HELMRICH, Christian , HILPERT, Johannes , RETTELBACH, Nikolaus , DISCH, Sascha , EDLER, Bernd
IPC分类号： G10L19/00 , G10L19/04
CPC分类号： G10L19/04 , G10L19/008
摘要： An audio encoder and an audio decoder are based on a combination of two audio channels (201, 202) to obtain a first combination signal (204) as a mid signal and a residual signal (205) which can be derived using a predicted side signal derived from the mid signal. The first combination signal and the prediction residual signal are encoded (209) and written (212) into a data stream (213) together with the prediction information (206) derived by an optimizer (207) based on an optimization target (208). A decoder uses the prediction residual signal, the first combination signal and the prediction information to derive a decoded first channel signal and a decoded second channel signal. In an encoder example or in a decoder example, a real-to-imaginary transform can be applied for estimating the imaginary part of the spectrum of the first combination signal. For calculating the prediction signal used in the derivation of the prediction residual signal, the real-valued first combination signal is multiplied by a real portion of the complex prediction information and the estimated imaginary part of the first combination signal is multiplied by an imaginary portion of the complex prediction information.

5. 发明申请

WO2010115850A1 APPARATUS, METHOD AND COMPUTER PROGRAM FOR UPMIXING A DOWNMIX AUDIO SIGNAL USING A PHASE VALUE SMOOTHING 审中-公开
标题翻译：装置，方法和计算机程序，用于使用相位值平滑来降低下降音频信号
公开(公告)号：WO2010115850A1
公开(公告)日：2010-10-14
申请号：PCT/EP2010/054448
申请日：2010-04-01
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , NEUSINGER, Matthias , ROBILLIARD, Julien , HILPERT, Johannes
发明人： NEUSINGER, Matthias , ROBILLIARD, Julien , HILPERT, Johannes
IPC分类号： G10L19/00
CPC分类号： G10L19/008 , H04S2420/03
摘要： An apparatus for upmixing a downmix audio signal describing one or more downmix audio channels into an upmixed audio signal describing a plurality of upmixed audio channels comprises an upmixer and a parameter determinator. The upmixer is configured to apply temporally variable upmix parameters to upmix the downmix audio signal in order to obtain the upmixed audio signal, wherein the temporally variable upmix parameters comprise temporally variable smoothened phase values. The parameter determinator is configured to obtain one or more temporally smoothened upmix parameters for usage by the upmixer on the basis of a quantized upmix parameter input information. The parameter determinator is configured to combine a scaled version of a previous smoothened phase value with a scaled version of an input phase information using a phase change limitation algorithm, to determine a current smoothened phase value on the basis of the previous smoothened phase value and the phase input information.
摘要翻译：用于将描述一个或多个下混音频通道的下混音频信号上混合到描述多个上混合音频通道的上混合音频信号中的装置包括上混频器和参数确定器。上混频器被配置为应用时间上可变的上混参数来上混合音频信号以获得上混合的音频信号，其中时间上可变的上混参数包括时间上可变的平滑相位值。参数确定器被配置为获得一个或多个时间上平滑的上混参数，以供上混合器基于量化上混参数输入信息使用。参数确定器被配置为使用相变限制算法将先前平滑相位值的缩放版本与输入相位信息的缩放版本组合，以基于先前平滑相位值确定当前平滑相位值，并且相输入信息。

6. 发明申请

WO2016016144A1 APPARATUS AND METHOD FOR GENERATING AN ENHANCED SIGNAL USING INDEPENDENT NOISE-FILLING 审中-公开
标题翻译：使用独立噪声填充生成增强信号的装置和方法
公开(公告)号：WO2016016144A1
公开(公告)日：2016-02-04
申请号：PCT/EP2015/067058
申请日：2015-07-24
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
发明人： DISCH, Sascha , GEIGER, Ralf , NIEDERMEIER, Andreas , NEUSINGER, Matthias , SCHMIDT, Konstantin , WILDE, Stephan , SCHUBERT, Benjamin , NEUKAM, Christian
IPC分类号： G10L19/028 , G10L21/038
CPC分类号： G10L19/028 , G10L19/0204 , G10L21/038 , G10L25/21
摘要： An apparatus for generating an enhanced signal from an input signal (600), wherein the enhanced signal has spectral values for an enhancement spectral region, the spectral values for the enhancement spectral regions not being contained in the input signal (600), comprises a mapper (602) for mapping a source spectral region of the input signal to a target region in the enhancement spectral region, the source spectral region comprising a noise-filling region (302); and a noise filler (604) configured for generating first noise values for the noise-filling region (302) in the source spectral region of the input signal and for generating second noise values for a noise region in the target region, wherein the second noise values are decorrelated from the first noise values or for generating second noise values for a noise region in the target region, wherein the second noise values are decorrelated from first noise values in the source region.
摘要翻译：一种用于从输入信号（600）生成增强信号的装置，其中所述增强信号具有用于增强频谱区域的频谱值，所述增强频谱区域的频谱值不包含在所述输入信号（600）中，包括映射器（602），用于将所述输入信号的源光谱区域映射到所述增强光谱区域中的目标区域，所述源光谱区域包括噪声填充区域（302）; 以及噪声填充器（604），其被配置用于为所述输入信号的源频谱区域中的所述噪声填充区域（302）生成第一噪声值，并且用于产生所述目标区域中的噪声区域的第二噪声值，其中所述第二噪声值从第一噪声值解相关或用于为目标区域中的噪声区域产生第二噪声值，其中第二噪声值与源区域中的第一噪声值相关。

7. 发明申请

WO2016016124A1 AUDIO ENCODER AND DECODER USING A FREQUENCY DOMAIN PROCESSOR, A TIME DOMAIN PROCESSOR, AND A CROSS PROCESSOR FOR CONTINUOUS INITIALIZATION 审中-公开
标题翻译：音频编码器和解码器使用频域处理器，时域处理器和连续初始化的交叉处理器
公开(公告)号：WO2016016124A1
公开(公告)日：2016-02-04
申请号：PCT/EP2015/067005
申请日：2015-07-24
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
发明人： DISCH, Sascha , DIETZ, Martin , MULTRUS, Markus , FUCHS, Guillaume , RAVELLI, Emmanuel , NEUSINGER, Matthias , SCHNELL, Markus , SCHUBERT, Benjamin , GRILL, Bernhard
IPC分类号： G10L19/18 , G10L19/02 , G10L19/028 , G10L19/04 , G10L19/24 , G10L21/038
CPC分类号： G10L19/0208 , G10L19/02 , G10L19/022 , G10L19/028 , G10L19/04 , G10L19/083 , G10L19/18 , G10L19/24 , G10L19/26 , G10L21/038 , G10L2019/0001
摘要： An audio encoder for encoding an audio signal, comprises: a first encoding processor (600) for encoding a first audio signal portion in a frequency domain, wherein the first encoding processor (600) comprises: a time frequency converter for converting the first audio signal portion into a frequency domain representation having spectral lines up to a maximum frequency of the first audio signal portion; a spectral encoder for encoding the frequency domain representation; a second encoding processor for encoding a second different audio signal portion in the time domain; a cross-processor (700) for calculating, from the encoded spectral representation of the first audio signal portion, initialization data of the second encoding processor (610), so that the second encoding processing (610) is initialized to encode the second audio signal portion immediately following the first audio signal portion in time in the audio signal; a controller configured for analyzing the audio signal and for determining, which portion of the audio signal is the first audio signal portion encoded in the frequency domain and which portion of the audio signal is the second audio signal portion encoded in the time domain; and an encoded signal former for forming an encoded audio signal comprising a first encoded signal portion for the first audio signal portion and a second encoded signal portion for the second audio signal portion.
摘要翻译：一种用于编码音频信号的音频编码器，包括：用于对频域中的第一音频信号部分进行编码的第一编码处理器（600），其中第一编码处理器（600）包括：时间频率转换器，用于将第一音频信号部分转换成具有高达第一音频信号部分的最大频率的频谱线的频域表示; 用于对频域表示进行编码的频谱编码器; 第二编码处理器，用于对时域中的第二不同音频信号部分进行编码; 用于从所述第一音频信号部分的经编码的频谱表示计算所述第二编码处理器（610）的初始化数据的交叉处理器（700），使得所述第二编码处理（610）被初始化以对所述第二音频信号在音频信号中紧接在第一音频信号部分之后的部分; 控制器，被配置为分析音频信号并确定音频信号的哪个部分是在频域中编码的第一音频信号部分，并且音频信号的哪个部分是在时域中编码的第二音频信号部分; 以及用于形成编码音频信号的编码信号形成器，包括用于第一音频信号部分的第一编码信号部分和用于第二音频信号部分的第二编码信号部分。

8. 发明申请

WO2010086216A1 APPARATUS, METHOD AND COMPUTER PROGRAM FOR UPMIXING A DOWNMIX AUDIO SIGNAL 审中-公开
标题翻译：装置，方法和计算机程序，用于提升下载音频信号
公开(公告)号：WO2010086216A1
公开(公告)日：2010-08-05
申请号：PCT/EP2010/050279
申请日：2010-01-12
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , NEUSINGER, Matthias , ROBILLIARD, Julien , HILPERT, Johannes
发明人： NEUSINGER, Matthias , ROBILLIARD, Julien , HILPERT, Johannes
IPC分类号： G10L19/00 , H04B1/66
CPC分类号： G10L19/008
摘要： An apparatus for upmixing a downmix audio signal describing one or more downmix audio channels into an upmixed audio signal describing a plurality of upmixed audio channels comprises an upmixer configured to apply temporally variable upmixing parameters to upmix the downmix audio signal in order to obtain the upmixed audio signal. The apparatus also comprises a parameter interpolator, wherein the parameter interpolator is configured to obtain one or more temporally interpolated upmix parameters to be used by the upmixer on the basis of a first complex-valued upmix parameter and a subsequent second complex-valued upmix parameter. The parameter interpolator is configured to separately interpolate between a magnitude value of the first complex-valued upmix parameter and a magnitude value of the second complex-valued upmix parameter, and between a phase value of the first complex-valued upmix parameter and a phase value of the second complex-valued upmix parameter, to obtain the one or more temporally interpolated upmix parameters. A respective method can be implemented, for example, as a computer program.
摘要翻译：用于将描述一个或多个下混音频通道的缩混音频信号上混合到描述多个上混合音频通道的上混合音频信号的装置包括上混频器，其被配置为应用时间上可变的上混参数来上混合音频信号以获得上混合音频信号。该装置还包括参数内插器，其中参数内插器被配置为基于第一复值上混合参数和随后的第二复值上混参数来获得上混合器使用的一个或多个时间插值上混参数。参数内插器被配置为在第一复值上混参数的幅度值和第二复值上混参数的幅值之间以及第一复值上混参数的相位值和相位值之间分别插值的第二复值上混参数，以获得一个或多个时间内插的上混参数。可以将各自的方法例如作为计算机程序来实现。

9. 发明申请

WO2010006719A1 APPARATUS AND METHOD FOR GENERATING AUDIO OUTPUT SIGNALS USING OBJECT BASED METADATA 审中-公开
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：WO2010006719A1
公开(公告)日：2010-01-21
申请号：PCT/EP2009/004882
申请日：2009-07-06
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , SCHREINER, Stephan , FIESEL, Wolfgang , NEUSINGER, Matthias , HELLMUTH, Oliver , SPERSCHNEIDER, Ralph
发明人： SCHREINER, Stephan , FIESEL, Wolfgang , NEUSINGER, Matthias , HELLMUTH, Oliver , SPERSCHNEIDER, Ralph
IPC分类号： H04S3/00
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。

10. 发明申请

WO2010003575A1 EFFICIENT USE OF PHASE INFORMATION IN AUDIO ENCODING AND DECODING 审中-公开
标题翻译：相关信息在音频编码和解码中的有效使用
公开(公告)号：WO2010003575A1
公开(公告)日：2010-01-14
申请号：PCT/EP2009/004719
申请日：2009-06-30
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , HILPERT, Johannes , GRILL, Bernhard , NEUSINGER, Matthias , ROBILLIARD, Julien , LUIS-VALERO, Maria
发明人： HILPERT, Johannes , GRILL, Bernhard , NEUSINGER, Matthias , ROBILLIARD, Julien , LUIS-VALERO, Maria
IPC分类号： G10L19/00
CPC分类号： G10L19/008
摘要： An efficient encoded representation of a first and a second input audio signal can be derived using correlation information indicating a correlation between the first and the second input audio signals, when a signal characterization information, indicating at least a first or a second, different characteristic of the input audio signal is additionally considered. Phase information indicating a phase relation between the first and the second input audio signals is derived, when the input audio signals have the first characteristic. The phase information and a correlation measure are included into the encoded representation when the input audio signals have the first characteristic, and only the correlation information is included into the encoded representation when the input audio signals have the second characteristic.
摘要翻译：当指示第一和第二输入音频信号的至少第一或第二不同特征的信号表征信息时，可以使用指示第一和第二输入音频信号之间的相关性的相关信息来导出第一和第二输入音频信号的有效编码表示另外考虑输入音频信号。当输入音频信号具有第一特性时，导出指示第一和第二输入音频信号之间的相位关系的相位信息。当输入音频信号具有第一特性时，相位信息和相关度被包括在编码表示中，并且当输入音频信号具有第二特性时，相关信息仅包括在编码表示中。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式