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11.发明公开Apparatus and method and computer program for generating a stereo output signal for providing additional output channels 审中-公开装置和用于产生立体声输出信号的方法和计算机程序，以提供额外的输出通道
公开(公告)号：EP2523472A1
公开(公告)日：2012-11-14
申请号：EP11173101.4
申请日：2011-07-07
发明人： Stöcklmeier, Christian , Finauer, Stefan , Uhle, Christian , Prokein, Peter , Hellmuth, Oliver , Heise, Ulrik
CPC分类号： H04R5/00 , H04S1/007 , H04S5/005 , H04S2400/05
摘要： An apparatus for generating a stereo output signal comprises a manipulation information generator (110; 210; 340; 440; 640) being adapted to generate manipulation information depending on a first signal indication value of a first input channel and on a second signal indication value of a second input channel, and a manipulator (120; 220; 360, 370; 460, 470; 660, 670) for manipulating a combination signal based on the manipulation information to obtain a first manipulated signal as a first output channel and a second manipulated signal as a second output channel. The combination signal is a signal derived by combining the first input channel and the second input channel. Furthermore, the manipulator (120; 220; 360, 370; 460, 470; 660, 670) is configured for manipulating the combination signal in a first manner, when the first signal indication value is in a first relation to the second signal indication value, or in a different second manner, when the first signal indication value is in a different second relation to the second signal indication value.
摘要翻译： 用于产生立体声输出信号的装置包括：一个操作信息生成器（110; 210; 340; 440; 640）是angepasst以生成操作信息取决于第一输入信道的第一信号指示值和上的第二信号指示值 一个第二输入信道，和一个操纵器（120; 220; 360,370; 460，470; 660，670），用于基于所述操作信息，以获得第一处理的信号作为第一输出信道和第二操纵操纵的组合信号 信号作为第二输出通道。 该组合信号是通过组合所述第一输入通道和第二输入通道导出的信号。 进一步，操纵器（120; 220; 360,370; 460，470; 660，670）被配置为以第一方式操纵所述组合信号，当第一信号指示值是在第一相对于第二信号指示值 或在不同的第二方式中，当第一信号指示值是在不同的第二相对于第二信号指示值。
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12.发明公开Apparatus, method and computer program for deriving a multi-channel audio signal from an audio signal 有权的装置，方法和计算机程序用于从音频信号中导出多声道音频信号
公开(公告)号：EP2500900A1
公开(公告)日：2012-09-19
申请号：EP12168768.5
申请日：2007-10-23
CPC分类号： H04S5/005 , G10L19/008 , G10L19/02 , H04S2420/03
摘要： An apparatus for deriving a multi-channel audio signal comprising a front-loudspeaker signal and a back-loudspeaker signal from an audio signal, the apparatus comprising an apparatus for generating an ambient signal from the audio signal, wherein the apparatus for generating the ambient signal from the audio signal comprises means for a lossy compression of a representation of the audio signal so as to obtain a compressed representation of the audio signal; and 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 discrimination representation describing the difference between the representation of the audio signal and the compressed representation of the audio signal and describing those portions of the audio signal not played back in the lossily compressed representation, and wherein the means for lossy compression is configured such that signal portions exhibiting regular distribution of the energy or carrying a large signal energy are preferred to be included in the compressed representation; wherein the discrimination representation forms the ambient signal; an apparatus for providing the audio signal or a signal derived therefrom as the front-loudspeaker signal; and a back-loudspeaker-signal-providing apparatus for providing the ambient signal provided by the apparatus for generating the ambient signal or a signal derived therefrom as the back-loudspeaker signal. 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.
摘要翻译： 用于导出多声道音频信号包括前置扬声器信号和从在音频信号的回扬声器信号的装置，该装置在环境信号从音频信号产生，worin该装置用于产生所述环境信号的设备，包括的 从音频信号的装置包括用于将音频信号的表示的有损压缩，以便获得所述音频信号的压缩表示; 和装置，用于计算所述音频信号的压缩表示与音频信号的表示之间的差，以获得一个鉴别表示，判别表示描述该音频信号的表示与音频信号的压缩表示之间的差 和描述不唇同步的在有损地压缩表示，并worin用于有损压缩的装置的音频信号的那些部分被配置的搜索没有信号的部分表现出能量的规则分布或携带大的信号能量优选被包含在压缩 表示; worin判别表示形成所述环境信号; 到用于提供音频信号或从作为前扬声器信号导出有一个信号装置; 和背面的扬声器 - 信号 - 提供用于提供由该装置用于产生所述环境信号或从作为背扬声器信号导出存在的信号所提供的环境信号装置。 在的装置包括在从音频信号环境信号产生用于所述音频信号的表示的有损压缩，以便获得描述压缩音频信号的音频信号的压缩表示的装置。 用于产生所述环境信号的装置还包括用于计算所述音频信号的压缩表示与音频信号的表示之间的差，以获得一个鉴别表示的装置。 该装置包括进一步用于使用所述识别表示提供环境信号。
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公开(公告)号：EP4156180A1
公开(公告)日：2023-03-29
申请号：EP22206207.7
申请日：2016-06-09
IPC分类号： G10L19/008
摘要： An audio processor for processing an audio signal (100), comprises: an audio signal modifier (2) for modifying the audio signal (100) in response to a user input (200); a loudness controller (6) for determining a loudness compensation gain (C) based on a reference loudness (L ref ) or a reference gain (g i ) and a modified loudness (L mod ) or a modified gain (h i ), where the modified loudness (L mod ) or the modified gain (h i ) depends on the user input; and a loudness manipulator (5) for manipulating a loudness of a signal (101) using the loudness compensation gain (C).
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14.发明授权
公开(公告)号：EP2151822B8
公开(公告)日：2018-10-24
申请号：EP08017124.2
申请日：2008-09-29
IPC分类号： G10L21/0208 , G10L25/30 , G10L21/0216
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 comprises 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 comprises 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.
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15.发明公开Method and apparatus for decomposing a stereo recording using frequency-domain processing employing a spectral subtractor 审中-公开使用谱减法器的方法和装置用于立体声记录使用频域处理的分解
公开(公告)号：EP2544466A1
公开(公告)日：2013-01-09
申请号：EP11186719.8
申请日：2011-10-26
发明人： Uhle, Christian , Finauer, Stefan , Gampp, Stefan , Hellmuth, Oliver , Stocklmeier, Christian , Prokein, Peter
IPC分类号： H04S3/00
摘要： An apparatus for generating a stereo side signal having a first side channel and a second side channel from a stereo input signal having a first input channel and a second input channel is provided. The apparatus comprises a modification information generator (110) for generating modification information based on mid-side information. Furthermore, the apparatus comprises a signal manipulator (120) being adapted to manipulate the first input channel based on the modification information to obtain the first side channel and being adapted to manipulate the second input channel based on the modification information to obtain the second side channel. The modification information generator (110) comprises a spectral subtractor (115) for generating the modification information by generating a difference value indicating a difference between a mono mid signal or a mono side signal of the stereo input signal and the first or the second input channel.
摘要翻译： 提供了一种用于产生具有从具有第一输入通道和一个第二输入通道立体声输入信号的第一侧信道和第二侧通道立体声侧信号的装置。 该设备包括用于基于中侧信息修改信息的修改信息生成器（110）。 进一步，该装置包括一个信号操纵器（120）angepasst操纵基于该修改信息，以获得所述第一侧信道的第一输入通道和被angepasst操纵基于修改信息的第二输入信道以获得第二侧信道 ， 修改信息生成器（110）包括一个谱减法器（115），用于通过产生一个差值，它指示单声道的中间信号或立体声输入信号的单端信号和第一或第二输入通道之间的差产生的修改信息 ，
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16.发明公开Apparatus and method for modifying an input audio signal 有权Vorrichtung und Verfahren zurÄnderungeines Audioeingangssignals
公开(公告)号：EP2381574A1
公开(公告)日：2011-10-26
申请号：EP10160679.6
申请日：2010-04-22
CPC分类号： G10L21/00 , G10L21/0264 , G10L21/0364 , G10L25/69 , H03G9/005 , H03G9/025
摘要： An apparatus for modifying an input audio signal comprises an excitation determiner, a storage device and a signal modifier. The excitation determiner determines a value of an excitation parameter of a subband of a plurality of subbands of the input audio signal based on an energy content of the subband. Further, the storage device stores a lookup table containing a plurality of spectral weighting factors. A spectral weighting factor of the plurality of spectral weighting factors is associated to a predefined value of the excitation parameter and a subband of the plurality of subbands. The storage device provides a spectral weighting factor corresponding to the determined value of the excitation parameter and corresponding to the subband, the value of the excitation parameter is determined for. Further, the signal modifier modifies a content of the subband of the audio signal, the value of the excitation parameter is determined for, based on the provided spectral weighting factor to provide a modified subband.
摘要翻译： 用于修改输入音频信号的装置包括激励确定器，存储装置和信号调节器。 激励确定器基于子带的能量含量来确定输入音频信号的多个子带的子带的激励参数的值。 此外，存储装置存储包含多个频谱加权因子的查找表。 多个频谱加权因子的频谱加权因子与激励参数的预定值和多个子带中的子带相关联。 存储装置提供对应于确定的激励参数值并对应于子带的频谱加权因子，确定激励参数的值。 此外，信号修改器修改音频信号的子带的内容，基于所提供的频谱加权因子来确定激励参数的值以提供修改的子带。
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17.发明公开
公开(公告)号：EP4300999A2
公开(公告)日：2024-01-03
申请号：EP23210178.2
申请日：2019-01-28
发明人： Uhle, Christian , Hellmuth, Oliver , Havenstein, Julia , LEONARD, Timothy , Lang, Matthias , Höpfel, Marc , PROKEIN, Peter
IPC分类号： H04S5/00
摘要： An audio signal processor for providing ambient signal channels on the basis of an input audio signal, is configured to extract an ambient signal on the basis of the input audio signal. The signal processor is configured to distribute the ambient signal to a plurality of ambient signal channels in dependence on positions or directions of sound sources within the input audio signal, wherein a number of ambient signal channels is larger than a number of channels of the input audio signal.
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18.发明授权Apparatus, method and computer program for deriving a multi-channel audio signal from an audio signal 有权的装置，方法和计算机程序用于从音频信号中导出多声道音频信号
公开(公告)号：EP2500900B1
公开(公告)日：2014-04-02
申请号：EP12168768.5
申请日：2007-10-23
IPC分类号： G10L19/008 , G10L19/02 , H04S5/00
CPC分类号： H04S5/005 , G10L19/008 , G10L19/02 , H04S2420/03
摘要： An apparatus for deriving a multi-channel audio signal comprising a front-loudspeaker signal and a back-loudspeaker signal from an audio signal, the apparatus comprising an apparatus for generating an ambient signal from the audio signal, wherein the apparatus for generating the ambient signal from the audio signal comprises means for a lossy compression of a representation of the audio signal so as to obtain a compressed representation of the audio signal; and 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 discrimination representation describing the difference between the representation of the audio signal and the compressed representation of the audio signal and describing those portions of the audio signal not played back in the lossily compressed representation, and wherein the means for lossy compression is configured such that signal portions exhibiting regular distribution of the energy or carrying a large signal energy are preferred to be included in the compressed representation; wherein the discrimination representation forms the ambient signal; an apparatus for providing the audio signal or a signal derived therefrom as the front-loudspeaker signal; and a back-loudspeaker-signal-providing apparatus for providing the ambient signal provided by the apparatus for generating the ambient signal or a signal derived therefrom as the back-loudspeaker signal. 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.
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19.发明公开Method and apparatus for decomposing a stereo recording using frequency-domain processing employing a spectral weights generator 审中-公开为使用用于谱权重的发电机使用频域处理的立体声录音的分解的方法和装置
公开(公告)号：EP2544465A1
公开(公告)日：2013-01-09
申请号：EP11186715.6
申请日：2011-10-26
发明人： Uhle, Christian , Finauer, Stefan , Gampp, Patrick , Hellmuth, Oliver , Prokein, Peter , Stöcklmeier, Christian
IPC分类号： H04S3/00
摘要： An apparatus for generating a stereo side signal having a first side channel and a second side channel from a stereo input signal having a first input channel and a second input channel is provided. The apparatus comprises a modification information generator (110) for generating modification information based on mid-side information. Furthermore, the apparatus comprises a signal manipulator (120) being adapted to manipulate the first input channel based on the modification information to obtain the first side channel and being adapted to manipulate the second input channel based on the modification information to obtain the second side channel. The modification information generator (110) comprises a spectral weights generator (116) for generating the modification information by generating a first spectral weighting factor based on a mono mid signal and on a mono side signal of the stereo input signal.
摘要翻译： 提供了一种用于产生具有从具有第一输入通道和一个第二输入通道立体声输入信号的第一侧信道和第二侧通道立体声侧信号的装置。 该设备包括用于基于中侧信息修改信息的修改信息生成器（110）。 进一步，该装置包括一个信号操纵器（120）angepasst操纵基于该修改信息，以获得所述第一侧信道的第一输入通道和被angepasst操纵基于修改信息的第二输入信道以获得第二侧信道 ， 修改信息生成器（110）包括用于产生通过基于单声道中间信号和所述立体声输入信号的单侧信号的第一频谱权重因子修改的信息的谱权重产生器（116）。
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