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1. 发明授权

US08781133B2 Apparatus for generating a multi-channel audio signal 有权
标题翻译：用于产生多声道音频信号的装置
公开(公告)号：US08781133B2
公开(公告)日：2014-07-15
申请号：US13155477
申请日：2011-06-08
申请人： Andreas Walther , Oliver Hellmuth , Falko Ridderbusch , Christian Stoecklmeier
发明人： Andreas Walther , Oliver Hellmuth , Falko Ridderbusch , Christian Stoecklmeier
IPC分类号： H04R5/00
CPC分类号： H04S3/002 , H04S2400/11
摘要： An apparatus for generating a multi-channel audio signal based on an input audio signal comprises a main signal upmixer, a section selector, a section signal upmixer and a combiner. The main signal upmixer is configured to provide a main multi-channel audio signal based on the input audio signal. The section selector is configured to select or not select a section of the input audio signal based on an analysis of the input audio signal. The selected section of the input audio signal, a processed selected section of the input audio signal or a reference signal associated with the selected section of the input audio signal is provided as section signal. The section signal upmixer is configured to provide a section upmix signal based on the section signal, and the combiner is configured to overlay the main multi-channel audio signal and the section upmix signal to obtain the multi-channel audio signal.
摘要翻译：一种用于基于输入音频信号产生多声道音频信号的装置包括主信号上混混器，分段选择器，分段信号上混合器和组合器。主信号上混合器被配置为基于输入音频信号提供主多声道音频信号。分段选择器被配置为基于对输入音频信号的分析来选择或不选择输入音频信号的一部分。输入音频信号的选择部分，输入音频信号的经处理的选择部分或与输入音频信号的所选部分相关联的参考信号被提供为部分信号。分段信号上混混合器被配置为基于分段信号提供分段上混信号，并且组合器被配置为覆盖主多声道音频信号和分段上混信号以获得多声道音频信号。

2. 发明授权

US08958566B2 Audio signal decoder, method for decoding an audio signal and computer program using cascaded audio object processing stages 有权
标题翻译：音频信号解码器，用于解码音频信号的方法和使用级联音频对象处理级的计算机程序
公开(公告)号：US08958566B2
公开(公告)日：2015-02-17
申请号：US13335047
申请日：2011-12-22
申请人： Oliver Hellmuth , Cornelia Falch , Juergen Herre , Johannes Hilpert , Leon Terentiv , Falko Ridderbusch
发明人： Oliver Hellmuth , Cornelia Falch , Juergen Herre , Johannes Hilpert , Leon Terentiv , Falko Ridderbusch
IPC分类号： H04R5/00 , G10L19/20 , G10L19/008 , H04S7/00 , G10H1/36
CPC分类号： G10L19/20 , G10H1/361 , G10H2210/301 , G10L19/008 , H04S7/30 , H04S2400/11 , H04S2420/07
摘要： An audio signal decoder for providing an upmix signal representation in dependence on a downmix signal representation and an object-related parametric information includes an object separator configured to decompose the downmix signal representation, to provide a first audio information describing a first set of one or more audio objects of a first audio object type and a second audio information describing a second set of one or more audio objects of a second audio object type, in dependence on the downmix signal representation and using at least a part of the object-related parametric information.
摘要翻译：音频信号解码器，用于根据降混信号表示和对象相关参数信息提供上混合信号表示，包括被配置成分解下混合信号表示的对象分离器，以提供描述第一组一个或多个第一音频对象类型的音频对象和描述第二音频对象类型的一个或多个音频对象的第二组的第二音频信息，其依赖于下混合信号表示并使用至少一部分与对象相关的参数信息。

3. 发明申请

US20120177204A1 Audio Signal Decoder, Method for Decoding an Audio Signal and Computer Program Using Cascaded Audio Object Processing Stages 有权
标题翻译：音频信号解码器，用于解码音频信号的方法和使用级联音频对象处理阶段的计算机程序
公开(公告)号：US20120177204A1
公开(公告)日：2012-07-12
申请号：US13335047
申请日：2011-12-22
申请人： Oliver Hellmuth , Cornelia Falch , Juergen Herre , Johannes Hilpert , Leon Terentiv , Falko Ridderbusch
发明人： Oliver Hellmuth , Cornelia Falch , Juergen Herre , Johannes Hilpert , Leon Terentiv , Falko Ridderbusch
IPC分类号： H04R5/00
CPC分类号： G10L19/20 , G10H1/361 , G10H2210/301 , G10L19/008 , H04S7/30 , H04S2400/11 , H04S2420/07
摘要： An audio signal decoder for providing an upmix signal representation in dependence on a downmix signal representation and an object-related parametric information includes an object separator configured to decompose the downmix signal representation, to provide a first audio information describing a first set of one or more audio objects of a first audio object type and a second audio information describing a second set of one or more audio objects of a second audio object type, in dependence on the downmix signal representation and using at least a part of the object-related parametric information.
摘要翻译：音频信号解码器，用于根据降混信号表示和对象相关参数信息提供上混合信号表示，包括被配置成分解下混合信号表示的对象分离器，以提供描述第一组一个或多个第一音频对象类型的音频对象和描述第二音频对象类型的一个或多个音频对象的第二组的第二音频信息，其依赖于下混合信号表示并使用至少一部分与对象相关的参数信息。

4. 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。

5. 发明申请

US20110191101A1 Apparatus and Method for Processing an Audio Signal for Speech Enhancement Using a Feature Extraction 有权
标题翻译：使用特征提取处理用于语音增强的音频信号的装置和方法
公开(公告)号：US20110191101A1
公开(公告)日：2011-08-04
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： G10L19/00
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。

6. 发明申请

US20070242833A1 DEVICE AND METHOD FOR GENERATING AN AMBIENCE SIGNAL 有权
标题翻译：用于产生安全信号的装置和方法
公开(公告)号：US20070242833A1
公开(公告)日：2007-10-18
申请号：US11734620
申请日：2007-04-12
申请人： Juergen HERRE , Stefan Geyersberger , Oliver Hellmuth , Andreas Walther , Christiaan Janssen
发明人： Juergen HERRE , Stefan Geyersberger , Oliver Hellmuth , Andreas Walther , Christiaan Janssen
IPC分类号： H03G3/00 , H03G3/20
CPC分类号： H04S5/005 , G10L19/008 , H04R5/04
摘要： A transient detector is provided for generating an ambience signal suitable for being emitted via loudspeakers for which there is no special loudspeaker signal to detect a transient period. A synthesis signal generator produces a synthesis signal which fulfils the transient condition on the one hand and the continuity condition for the synthesis signal on the other hand. A signal substituter will then substitute a portion of the examination signal by the synthesis signal to obtain an ambience signal for the surround channels.
摘要翻译：提供了一种瞬态检测器，用于产生适于通过不具有特殊扬声器信号的扬声器发射以检测瞬态周期的环境信号。合成信号发生器产生合成信号，一方面满足瞬态条件和另一方面合成信号的连续性条件。然后，信号取代器将通过合成信号替换检查信号的一部分，以获得环绕声道的环境信号。

7. 发明授权

US09326085B2 Device and method for generating an ambience signal 有权
公开(公告)号：US09326085B2
公开(公告)日：2016-04-26
申请号：US13442649
申请日：2012-04-09
申请人： Juergen Herre , Stefan Geyersberger , Oliver Hellmuth , Andreas Walther , Christiaan Janssen
发明人： Juergen Herre , Stefan Geyersberger , Oliver Hellmuth , Andreas Walther , Christiaan Janssen
IPC分类号： H04S5/00 , G10L19/008 , H04R5/04
CPC分类号： H04S5/005 , G10L19/008 , H04R5/04
摘要： A transient detector is provided for generating an ambience signal suitable for being emitted via loudspeakers for which there is no special loudspeaker signal to detect a transient period. A synthesis signal generator produces a synthesis signal which fulfills the transient condition on the one hand and the continuity condition for the synthesis signal on the other hand. A signal substituter will then substitute a portion of the examination signal by the synthesis signal to obtain an ambience signal for the surround channels.

8. 发明授权

US08346565B2 Apparatus and method for generating an ambient signal from an audio signal, apparatus and method for deriving a multi-channel audio signal from an audio signal and computer program 有权
标题翻译：用于从音频信号生成环境信号的装置和方法，用于从音频信号和计算机程序导出多声道音频信号的装置和方法
公开(公告)号：US08346565B2
公开(公告)日：2013-01-01
申请号：US12440058
申请日：2007-10-23
申请人： Christian Uhle , Juergen Herre , Andreas Walther , Oliver Hellmuth , Christiaan Janssen
发明人： Christian Uhle , Juergen Herre , Andreas Walther , Oliver Hellmuth , Christiaan Janssen
IPC分类号： G10L19/00 , G10L11/00 , H04R5/00 , H03G3/00
CPC分类号： H04S5/005 , G10L19/008 , G10L19/02 , H04S2420/03
摘要： An apparatus for generating an ambient signal from an audio signal includes a compressor 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 includes a calculator 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 includes a provider for providing the ambient signal using the discrimination representation. An apparatus for deriving a multi-channel audio signal from an audio signal includes an apparatus for generating an ambient signal from an audio signal, an apparatus for providing the audio signal as a front-loudspeaker signal and an apparatus for providing the ambient signal as a back-loudspeaker signal.
摘要翻译：一种用于从音频信号产生环境信号的装置包括用于对音频信号的表示进行有损压缩的压缩器，以便获得描述压缩音频信号的音频信号的压缩表示。用于生成环境信号的装置还包括用于计算音频信号的压缩表示和音频信号的表示之间的差的计算器，以便获得鉴别表示。该装置还包括提供者，用于使用识别表示来提供环境信号。用于从音频信号导出多声道音频信号的装置包括用于从音频信号产生环境信号的装置，用于提供音频信号作为前置扬声器信号的装置，以及用于将环境信号提供为后置扬声器信号。

9. 发明授权

US08577482B2 Device and method for generating an ambience signal 有权
标题翻译：用于产生环境信号的装置和方法
公开(公告)号：US08577482B2
公开(公告)日：2013-11-05
申请号：US11734620
申请日：2007-04-12
申请人： Juergen Herre , Stefan Geyersberger , Oliver Hellmuth , Andreas Walther , Christiaan Janssen
发明人： Juergen Herre , Stefan Geyersberger , Oliver Hellmuth , Andreas Walther , Christiaan Janssen
IPC分类号： G06F17/00 , H03G3/00 , H04R5/02
CPC分类号： H04S5/005 , G10L19/008 , H04R5/04
摘要： A transient detector is provided for generating an ambience signal suitable for being emitted via loudspeakers for which there is no special loudspeaker signal to detect a transient period. A synthesis signal generator produces a synthesis signal which fulfills the transient condition on the one hand and the continuity condition for the synthesis signal on the other hand. A signal substituter will then substitute a portion of the examination signal by the synthesis signal to obtain an ambience signal for the surround channels.
摘要翻译：提供了一种瞬态检测器，用于产生适于通过不具有特殊扬声器信号的扬声器发射以检测瞬态周期的环境信号。合成信号发生器产生合成信号，一方面满足瞬态条件，另一方面又产生合成信号的连续性条件。然后，信号取代器将通过合成信号替换检查信号的一部分，以获得环绕声道的环境信号。

10. 发明授权

US07760886B2 Apparatus and method for synthesizing three output channels using two input channels 有权
标题翻译：使用两个输入通道合成三个输出通道的装置和方法
公开(公告)号：US07760886B2
公开(公告)日：2010-07-20
申请号：US11313180
申请日：2005-12-20
申请人： Oliver Hellmuth , Jürgen Herre , Harald Popp , Andreas Walther
发明人： Oliver Hellmuth , Jürgen Herre , Harald Popp , Andreas Walther
IPC分类号： H04R5/00
CPC分类号： H04S5/00
摘要： For synthesizing at least three output channels using two stereo input channels, the stereo input channels are analyzed to detect signal components occurring in both input channels. A signal generator is operative to introduce at least a part of the detected signal components into the second channel associated with a second speaker in an intended speaker scheme, which is positioned between a first and a third speaker in the speaker scheme. When, however, feeding of the complete detected signal components would result in a clipping situation, then only a part of the detected signal components is fed into the second channel as a real center channel and the remainder is located in the first and third channels as a phantom center channel.
摘要翻译：为了使用两个立体声输入通道合成至少三个输出通道，分析立体声输入通道以检测在两个输入通道中发生的信号分量。信号发生器可操作以将所检测的信号分量的至少一部分引入与位于扬声器方案中的第一和第三扬声器之间的预期扬声器方案中与第二扬声器相关联的第二通道。然而，当提供完整检测到的信号分量将导致削波情况时，则只有一部分检测到的信号分量被馈送到第二信道中作为实际中心信道，其余部分位于第一和第三信道中，如幻影中心频道。

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