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. 发明申请

WO2005001813A1 APPARATUS AND METHOD FOR ENCODING AN AUDIO SIGNAL AND APPARATUS AND METHOD FOR DECODING AN ENCODED AUDIO SIGNAL 审中-公开
标题翻译：用于编码音频信号的装置和方法以及用于解码编码音频信号的装置和方法
公开(公告)号：WO2005001813A1
公开(公告)日：2005-01-06
申请号：PCT/EP2004/006850
申请日：2004-06-24
申请人： CODING TECHNOLOGIES AB , HÖRICH, Holger , SCHUG, Michael , NEUSINGER, Matthias
发明人： HÖRICH, Holger , SCHUG, Michael , NEUSINGER, Matthias
IPC分类号： G10L19/12
CPC分类号： G10L19/022 , G10L19/0212 , G10L19/24
摘要： When encoding an audio signal, the audio signal is first encoded with the first encoder (12) to obtain a first encoder output signal. This first encoder output signal is written into a bit stream. It is further decoded by a decoder (18) to provide a decoded audio signal. The decoded audio signal is compared (22) with the original audio signal to obtain a residual signal. The residual signal is then encoded via a second encoder (26) to provide a second encoder output signal which is also written into a bit stream (30). The first encoder has a first time or frequency resolution. The second encoder has a second time or frequency resolution. The first resolution differs from the second resolution, so that in a respective decoder, an au-dio signal with both a high time resolution as well as a high frequency resolution can be retrieved.
摘要翻译：当对音频信号进行编码时，首先利用第一编码器（12）对音频信号进行编码，以获得第一编码器输出信号。该第一编码器输出信号被写入位流。由解码器（18）进一步解码以提供解码的音频信号。将解码的音频信号与原始音频信号进行比较（22）以获得残留信号。然后，经由第二编码器（26）对剩余信号进行编码，以提供也被写入比特流（30）的第二编码器输出信号。第一个编码器具有第一次或频率分辨率。第二编码器具有第二时间或频率分辨率。第一分辨率与第二分辨率不同，因此在相应的解码器中，可以检索具有高时间分辨率以及高频分辨率的自动信号。

2. 发明申请

WO2006108456A1 APPARATUS AND METHOD FOR GENERATING MULTI-CHANNEL SYNTHESIZER CONTROL SIGNAL AND APPARATUS AND METHOD FOR MULTI-CHANNEL SYNTHESIZING 审中-公开
标题翻译：用于产生多通道合成器控制信号的装置和方法以及用于多通道合成的装置和方法
公开(公告)号：WO2006108456A1
公开(公告)日：2006-10-19
申请号：PCT/EP2006/000455
申请日：2006-01-19
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , CODING TECHNOLOGIES AB , KONINKLIJKE PHILIPS ELECTRONICS N.V. , NEUSINGER, Matthias , HERRE, Juergen , DISCH, Sascha , PURNHAGEN, Heiko , KJOERLING, Kristofer , ENGDEGARD, Jonas , BREEBAART, Jeroen , SCHUIJERS, Erik , OOMEN, Werner
发明人： NEUSINGER, Matthias , HERRE, Juergen , DISCH, Sascha , PURNHAGEN, Heiko , KJOERLING, Kristofer , ENGDEGARD, Jonas , BREEBAART, Jeroen , SCHUIJERS, Erik , OOMEN, Werner
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 audio input signal is analyzed for obtaining smoothing control information, which is to be used by a decoder-side multi-channel audio 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.
摘要翻译：在编码器侧，分析多声道音频输入信号以获得平滑控制信息，该平滑控制信息将被解码器侧多声道音频合成用于平滑量化的发送参数或从量化的发送参数导出的值提供了改进的主观音频质量，特别是用于缓慢移动的点源和具有诸如快速移动的正弦曲线之类的音调材料的快速移动的点源。

3. 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。

4. 发明申请

WO2009100875A1 VORRICHTUNG UND VERFAHREN ZUM BERECHNEN EINES FINGERABDRUCKS EINES AUDIOSIGNALS, VORRICHTUNG UND VERFAHREN ZUM SYNCHRONISIEREN UND VORRICHTUNG UND VERFAHREN ZUM CHARAKTERISIEREN EINES TESTAUDIOSIGNALS 审中-公开
标题翻译：设备和计算方法用于同步和设备和方法的音频信号，设备和方法的指纹表征测试音频信号
公开(公告)号：WO2009100875A1
公开(公告)日：2009-08-20
申请号：PCT/EP2009/000917
申请日：2009-02-10
申请人： FRAUNHOFER - GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , SCHARRER, Sebastian , FIESEL, Wolfgang , NEUSINGER, Matthias
发明人： SCHARRER, Sebastian , FIESEL, Wolfgang , NEUSINGER, Matthias
IPC分类号： G10L11/00 , G10L19/00
CPC分类号： G10L25/48 , G10L19/008
摘要： Zum Berechnen eines Fingerabdrucks eines Audiosignals wird das Audiosignal in aufeinanderfolgende Blöcke von Abtastwerten eingeteilt (104a). Für die aufeinanderfolgenden Blöcke wird jeweils ein Fingerabdruck-Wert berechnet (104b), wobei Fingerabdruckwerte aufeinanderfolgender Blöcke verglichen werden (806). Basierend darauf, ob der Fingerabdruck-Wert eines Blocks größer als der Fingerabdruckwert eines darauffolgenden Blocks ist oder nicht, wird ein binärer Wert zugewiesen, wobei Informationen über eine Folge von binären Werten als Fingerabdruck für das Audiosignal ausgegeben werden (104c).
摘要翻译：用于计算音频信号的指纹，该音频信号被划分成采样的连续块（104A）。指纹值的计算（104B），用于分别连续块，所述连续块的指纹值进行比较（806）。基于块的指纹值是否大于后续块与否的指纹值时，二进制值被分配，其中，在二进制值的序列信息被作为用于音频信号（104℃）的指纹输出。

5. 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。

6. 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。

7. 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。

8. 发明申请

WO2010086218A1 UPMIXER, METHOD AND COMPUTER PROGRAM FOR UPMIXING A DOWNMIX AUDIO SIGNAL 审中-公开
标题翻译： UPMIXER，用于UPMIXING DOWNMIX音频信号的方法和计算机程序
公开(公告)号：WO2010086218A1
公开(公告)日：2010-08-05
申请号：PCT/EP2010/050287
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
CPC分类号： G10L19/008
摘要： An upmixer for upmixing a downmix audio signal into an upmixed audio signal describing one or more upmixed audio channels comprises a parameter applier configured to apply upmixing parameters to upmix the downmix audio signal in order to obtain the upmixed audio signal. The parameter applier is configured to apply a phase shift to the downmix audio signal to obtain a phase-shifted version of the downmix audio signal, while leaving a decorrelated signal unmodified by the phase shift. The parameter applier is further configured to combine the phase-shifted version of the downmix audio signal with the decorrelated signal to obtain the upmixed audio signal.
摘要翻译：用于将缩混音频信号上混合到描述一个或多个上混音频通道的上混合音频信号的上混混器包括配置用于施加上混参数以混合下混音频信号以便获得上混合音频信号的参数施加器。参数施加器被配置为将相移应用于下混音频信号以获得下混音频信号的相移版本，同时保留未被相移修改的解相关信号。参数施加器还被配置为将降混音频信号的相移版本与解相关信号组合以获得上混音频信号。

9. 发明申请

WO2011128138A1 AUDIO OR VIDEO ENCODER, AUDIO OR VIDEO DECODER AND RELATED METHODS FOR PROCESSING MULTI-CHANNEL AUDIO OR VIDEO SIGNALS USING A VARIABLE PREDICTION DIRECTION 审中-公开
标题翻译：音频或视频编码器，音频或视频解码器以及使用可变预测方向处理多通道音频或视频信号的相关方法
公开(公告)号：WO2011128138A1
公开(公告)日：2011-10-20
申请号：PCT/EP2011/052354
申请日：2011-02-17
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , ROBILLIARD, Julien , NEUSINGER, Matthias , HELMRICH, Christian , HILPERT, Johannes , RETTELBACH, Nikolaus , DISCH, Sascha , EDLER, Bernd
发明人： ROBILLIARD, Julien , NEUSINGER, Matthias , HELMRICH, Christian , HILPERT, Johannes , RETTELBACH, Nikolaus , DISCH, Sascha , EDLER, Bernd
IPC分类号： G10L19/00 , G10L19/06
CPC分类号： H04N19/50 , G10L19/008 , G10L19/06
摘要： An audio or video encoder and an audio or video decoder are based on a combination of two audio or video 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) and a prediction direction indicator indicating a prediction direction associated with the residual signal. A decoder uses the prediction residual signal, the first combination signal, the prediction direction indicator 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：音频或视频编码器和音频或视频解码器基于两个音频或视频信道（201,202）的组合，以获得作为中间信号的第一组合信号（204）和可以是使用从中间信号导出的预测侧信号导出。基于优化目标（208），第一组合信号和预测残差信号与由优化器（207）导出的预测信息（206）一起编码（209）并写入（212）到数据流（213）中，以及指示与残留信号相关联的预测方向的预测方向指示符。解码器使用预测残差信号，第一组合信号，预测方向指示符和预测信息来导出解码的第一信道信号和解码的第二信道信号。在编码器示例或解码器示例中，可以应用实 - 虚变换来估计第一组合信号的频谱的虚部。为了计算在推导预测残差信号中使用的预测信号，将实值第一组合信号乘以复数预测信息的实部，并将第一组合信号的估计虚部乘以假想部分复杂的预测信息。

10. 发明申请

WO2011124473A1 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，音频解码器和使用复杂预测处理多通道音频信号的相关方法
公开(公告)号：WO2011124473A1
公开(公告)日：2011-10-13
申请号：PCT/EP2011/054485
申请日：2011-03-23
申请人： FRAUNHOFER-GESELLSCHAFT DER ANGEWANDTEN FORSCHUNG E.V. , DOLBY INTERNATIONAL AB , PURNHAGEN, Heiko , CARLSSON, Pontus , VILLEMOES, Lars , ROBILLARD, Julien , NEUSINGER, Matthias , HELMRICH, Christian , HILPERT, Johannes , RETTELBACH, Nikolaus , DISCH, Sascha , EDLER, Bernd
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：音频编码器和音频解码器基于两个音频通道（201,202）的组合，以获得作为中间信号的第一组合信号（204）和可以使用预测侧信号导出的残留信号（205）从中间信号导出。基于优化目标（208），将第一组合信号和预测残差信号与由优化器（207）导出的预测信息（206）一起编码（209）并写入（212）到数据流（213）中。解码器使用预测残差信号，第一组合信号和预测信息来导出解码的第一信道信号和解码的第二信道信号。在编码器示例或解码器示例中，可以应用实 - 虚变换来估计第一组合信号的频谱的虚部。为了计算在推导预测残差信号中使用的预测信号，将实值第一组合信号乘以复数预测信息的实部，并将第一组合信号的估计虚部乘以假想部分复杂的预测信息。

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