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1. 发明申请

WO2010115845A1 APPARATUS AND METHOD FOR GENERATING A SYNTHESIS AUDIO SIGNAL AND FOR ENCODING AN AUDIO SIGNAL 审中-公开
标题翻译：用于产生合成音频信号和编码音频信号的装置和方法
公开(公告)号：WO2010115845A1
公开(公告)日：2010-10-14
申请号：PCT/EP2010/054434
申请日：2010-04-01
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , NAGEL, Frederik , MULTRUS, Markus , LECOMTE, Jérémie , BAYER, Stefan , FUCHS, Guillaume , HILPERT, Johannes , ROBILLIARD, Julien
发明人： NAGEL, Frederik , MULTRUS, Markus , LECOMTE, Jérémie , BAYER, Stefan , FUCHS, Guillaume , HILPERT, Johannes , ROBILLIARD, Julien
IPC分类号： G10L21/02 , G10L19/14
CPC分类号： G10L19/008 , G10L19/18 , G10L21/038
摘要： An apparatus for generating a synthesis audio signal using a patching control signal comprises a first converter, a spectral domain patch generator, a high frequency reconstruction manipulator and a combiner. The first converter is configured for converting a time portion of an audio signal into a spectral representation. The spectral domain patch generator is configured for performing a plurality of different spectral domain patching algorithms, wherein each patching algorithm generates a modified spectral representation comprising spectral components in an upper frequency band derived from corresponding spectral components in a core frequency band of the audio signal. The spectral domain patch generator is furthermore configured to select a first spectral domain patching algorithm from the plurality of patching algorithms for a first time portion and a second spectral domain patching algorithm from the plurality of patching algorithm for a second different time portion in accordance with the patching control signal to obtain the modified spectral representation. The high frequency reconstruction manipulator is configured for manipulating the modified spectral representation or a signal derived from the modified spectral representation in accordance with a spectral band replication parameter to obtain a bandwidth extended signal. Finally, the combiner is configured for combining the audio signal having spectral components in the core frequency band or a signal derived from the audio signal with the bandwidth extended signal to obtain the synthesis audio signal.
摘要翻译：使用补丁控制信号产生合成音频信号的装置包括第一转换器，频域补丁发生器，高频重构操纵器和组合器。第一转换器被配置为将音频信号的时间部分转换为频谱表示。频域补丁生成器被配置用于执行多个不同的频域修补算法，其中每个修补算法生成修改的频谱表示，该修改的频谱表示包括从音频信号的核心频带中的相应频谱分量导出的上频带中的频谱分量。频域补丁生成器还被配置为根据来自第一时间部分的多个修补算法和来自用于第二不同时间部分的多个修补算法的第二频域修补算法来选择第一频域修补算法修补控制信号以获得修改的光谱表示。高频重建操纵器被配置为根据频谱带复制参数来操纵修改的频谱表示或从修改的频谱表示导出的信号，以获得带宽扩展信号。最后，组合器被配置为将具有核心频带中的频谱分量的音频信号或从音频信号导出的信号与带宽扩展信号组合以获得合成音频信号。

2. 发明申请

WO2010003617A1 LOW BITRATE AUDIO ENCODING/DECODING SCHEME WITH COMMON PREPROCESSING 审中-公开
标题翻译：低分辨率音频编码/解码方案与通用预处理
公开(公告)号：WO2010003617A1
公开(公告)日：2010-01-14
申请号：PCT/EP2009/004873
申请日：2009-07-06
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , GRILL, Bernhard , BAYER, Stefan , FUCHS, Guillaume , GEYERSBERGER, Stefan , GEIGER, Ralf , HILPERT, Johannes , KRAEMER, Ulrich , LECOMTE, Jeremie , MULTRUS, Markus , NEUENDORF, Max , POPP, Harald , RETTELBACH, Nikolaus , NAGEL, Frederik , DISCH, Sascha , HERRE, Juergen , YOKOTANI, Yoshikazu , WABNIK, Stefan , SCHULLER, Gerald , HIRSCHFELD, Jens
发明人： GRILL, Bernhard , BAYER, Stefan , FUCHS, Guillaume , GEYERSBERGER, Stefan , GEIGER, Ralf , HILPERT, Johannes , KRAEMER, Ulrich , LECOMTE, Jeremie , MULTRUS, Markus , NEUENDORF, Max , POPP, Harald , RETTELBACH, Nikolaus , NAGEL, Frederik , DISCH, Sascha , HERRE, Juergen , YOKOTANI, Yoshikazu , WABNIK, Stefan , SCHULLER, Gerald , HIRSCHFELD, Jens
IPC分类号： G10L19/14
CPC分类号： G10L19/173 , G10L19/0017 , G10L19/008 , G10L19/0212 , G10L19/18 , G10L2019/0008
摘要： An audio encoder comprises a common preprocessing stage (100), an information sink based encoding branch (400) such as spectral domain encoding branch, a information source based encoding branch (500) such as an LPC-domain encoding branch and a switch (200) for switching between these branches at inputs into these branches or outputs of these branches controlled by a decision stage (300). An audio decoder comprises a spectral domain decoding branch, an LPC- domain decoding branch, one or more switches for switching between the branches and a common post-processing stage for post-processing a time-domain audio signal for obtaining a post-processed audio signal.
摘要翻译：音频编码器包括公共预处理级（100），诸如频域编码分支的基于信息集合的编码分支（400），诸如LPC域编码分支的信息源编码分支（500）和开关（200 ），用于在由决策阶段（300）控制的这些分支的这些分支或输出的输入处在这些分支之间切换。音频解码器包括频域解码分支，LPC域解码分支，用于在分支之间切换的一个或多个开关和用于后处理时域音频信号以用于获得后处理音频的公共后处理级信号。

3. 发明申请

WO2010003564A1 LOW BITRATE AUDIO ENCODING/DECODING SCHEME HAVING CASCADED SWITCHES 审中-公开
标题翻译：低成本音频编码/解码方案具有CASCADED开关
公开(公告)号：WO2010003564A1
公开(公告)日：2010-01-14
申请号：PCT/EP2009/004652
申请日：2009-06-26
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V , VOICEAGE CORPORATION , GRILL, Bernhard , LEFEBVRE, Roch , BESSETTE, Bruno , LAPIERRE, Jimmy , GOURNAY, Philippe , SALAMI, Redwan , BAYER, Stefan , FUCHS, Guillaume , GEYERSBERGER, Stefan , GEIGER, Ralf , HILPERT, Johannes , KRAEMER, Ulrich , LECOMTE, Jeremie , MULTRUS, Markus , NEUENDORF, Max , POPP, Harald , RETTELBACH, Nikolaus
发明人： GRILL, Bernhard , LEFEBVRE, Roch , BESSETTE, Bruno , LAPIERRE, Jimmy , GOURNAY, Philippe , SALAMI, Redwan , BAYER, Stefan , FUCHS, Guillaume , GEYERSBERGER, Stefan , GEIGER, Ralf , HILPERT, Johannes , KRAEMER, Ulrich , LECOMTE, Jeremie , MULTRUS, Markus , NEUENDORF, Max , POPP, Harald , RETTELBACH, Nikolaus
IPC分类号： G10L19/14
CPC分类号： G10L19/008 , G10L19/0017 , G10L19/0212 , G10L19/173 , G10L19/18 , G10L2019/0008
摘要： An audio encoder comprises a first information sink oriented encoding branch such as a spectral domain encoding branch, a second information source or SNR oriented encoding branch such as an LPC-domain encoding branch, and a switch for switching between the first encoding branch and the second encoding branch, wherein the second encoding branch comprises a converter into a specific domain different from the spectral domain such as an LPC analysis stage generating an excitation signal, and wherein the second encoding branch furthermore comprises a specific domain coding branch such as LPC domain processing branch, and a specific spectral domain coding branch such as LPC spectral domain processing branch, and an additional switch for switching between the specific domain coding branch and the specific spectral domain coding branch. An audio decoder comprises a first domain decoder such as a spectral domain decoding branch, a second domain decoder such as an LPC domain decoding branch for decoding a signal such as an excitation signal in the second domain, and a third domain decoder such as an LPC-spectral decoder branch and two cascaded switches for switching between the decoders.
摘要翻译：音频编码器包括第一信息宿定向编码分支，诸如频域编码分支，第二信息源或SNR定向编码分支，诸如LPC域编码分支，以及用于在第一编码分支与第二编码分支之间进行切换的开关编码分支，其中所述第二编码分支包括转换器到不同于所述频域的特定域，例如产生激励信号的LPC分析阶段，并且其中所述第二编码分支还包括特定域编码分支，诸如LPC域处理分支，以及诸如LPC频域处理分支的特定频域编码分支，以及用于在特定编码分支和特定频域编码分支之间切换的附加开关。音频解码器包括诸如频域解码分支的第一域解码器，诸如LPC域解码分支的第二域解码器，用于对诸如第二域中的激励信号的信号进行解码，以及第三域解码器，诸如LPC 光谱解码器分支和两个级联开关，用于在解码器之间切换。

4. 发明申请

WO2010006717A1 AUDIO ENCODING/DECODING SCHEME HAVING A SWITCHABLE BYPASS 审中-公开
标题翻译：具有可切换旁路的音频编码/解码方案
公开(公告)号：WO2010006717A1
公开(公告)日：2010-01-21
申请号：PCT/EP2009/004875
申请日：2009-07-06
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , VOICEAGE CORPORATION , GRILL, Bernhard , BAYER, Stefan , FUCHS, Guillaume , GEYERSBERGER, Stefan , GEIGER, Ralf , HILPERT, Johannes , KRAEMER, Ulrich , LECOMTE, Jeremie , MULTRUS, Markus , NEUENDORF, Max , POPP, Harald , RETTELBACH, Nikolaus , LEFEBVRE, Roch , BESSETTE, Bruno , LAPIERRE, Jimmy , SALAMI, Redwan , GOURNAY, Philippe
发明人： GRILL, Bernhard , BAYER, Stefan , FUCHS, Guillaume , GEYERSBERGER, Stefan , GEIGER, Ralf , HILPERT, Johannes , KRAEMER, Ulrich , LECOMTE, Jeremie , MULTRUS, Markus , NEUENDORF, Max , POPP, Harald , RETTELBACH, Nikolaus , LEFEBVRE, Roch , BESSETTE, Bruno , LAPIERRE, Jimmy , SALAMI, Redwan , GOURNAY, Philippe
IPC分类号： G10L19/14
CPC分类号： G10L19/173 , G10L19/0017 , G10L19/008 , G10L19/0212 , G10L19/18 , G10L2019/0008
摘要： An apparatus for encoding comprises a first domain Converter (510), a switchable bypass (50), a second domain Converter (410), a first processor (420) and a second processor (520) to obtain an encoded audio signal having different signal portions represented by coded data in different domains, which have been coded by different coding algorithms. Corresponding decoding stages in the decoder together with a bypass for bypassing a domain Converter allow the generation of a decoded audio signal with high quality and low bit rate.
摘要翻译：一种用于编码的装置，包括第一域转换器（510），可切换旁路（50），第二域转换器（410），第一处理器（420）和第二处理器（520），以获得具有不同信号的编码音频信号由不同域中的编码数据表示的部分，其已经由不同的编码算法编码。解码器中的对应的解码级以及绕过域转换器的旁路允许产生具有高质量和低比特率的解码音频信号。

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

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。

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

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。

9. 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。

10. 发明申请

WO2008046530A3 APPARATUS AND METHOD FOR MULTI -CHANNEL PARAMETER TRANSFORMATION 审中-公开
公开(公告)号：WO2008046530A3
公开(公告)日：2008-04-24
申请号：PCT/EP2007/008682
申请日：2007-10-05
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , CODING TECHNOLOGIES AB , KONINKLIJKE PHILIPS ELECTRONICS N.V. , HILPERT, Johannes , LINZMEIER, Karsten , HERRE, Jürgen , SPERSCHNEIDER, Ralph , HÖLZER, Andreas , VILLEMOES, Lars , ENGDEGARD, Jonas , PURNHAGEN, Heiko , KJÖRLING, Kristofer , BREEBAART, Jeroen , OOMEN, Werner
发明人： HILPERT, Johannes , LINZMEIER, Karsten , HERRE, Jürgen , SPERSCHNEIDER, Ralph , HÖLZER, Andreas , VILLEMOES, Lars , ENGDEGARD, Jonas , PURNHAGEN, Heiko , KJÖRLING, Kristofer , BREEBAART, Jeroen , OOMEN, Werner
IPC分类号： G10L19/14 , G10L19/00
摘要： A parameter transformer generates level parameters, indicating an energy relation between a first and a second audio channel of a multi-channel audio signal associated to a multi-channel loudspeake configuration. The level parameter are generated based on object parameters for a plurality of audio objects associated to a down-mix channel, which is generated using object audio signals associated to the audio objects. The object parameters comprise an energy parameter indicating an energy of the object audio signal. To derive the coherence and the level parameters, a parameter generator is used, which combines the energy parameter and object rendering parameters, which depend on a desired rendering configuration.

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