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1. 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。

2. 发明申请

US20100030563A1 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传送多声道音频信号的装置和方法
公开(公告)号：US20100030563A1
公开(公告)日：2010-02-04
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： G10L21/00
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。

3. 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。

4. 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.

5. 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。

6. 发明申请

US20100232619A1 DEVICE AND METHOD FOR GENERATING A MULTI-CHANNEL SIGNAL INCLUDING SPEECH SIGNAL PROCESSING 有权
标题翻译：用于产生包括语音信号处理的多信道信号的装置和方法
公开(公告)号：US20100232619A1
公开(公告)日：2010-09-16
申请号：US12681809
申请日：2008-10-01
申请人： Christian Uhle , Oliver Hellmuth , Juergen Herre , Harald Popp , Thorsten Kastner
发明人： Christian Uhle , Oliver Hellmuth , Juergen Herre , Harald Popp , Thorsten Kastner
IPC分类号： H04B3/00
CPC分类号： H04S5/005 , G10L19/008 , G10L21/0364 , G10L25/78
摘要： In order to generate a multi-channel signal having a number of output channels greater than a number of input channels, a mixer is used for upmixing the input signal to form at least a direct channel signal and at least an ambience channel signal. A speech detector is provided for detecting a section of the input signal, the direct channel signal or the ambience channel signal in which speech portions occur. Based on this detection, a signal modifier modifies the input signal or the ambience channel signal in order to attenuate speech portions in the ambience channel signal, whereas such speech portions in the direct channel signal are attenuated to a lesser extent or not at all. A loudspeaker signal outputter then maps the direct channel signals and the ambience channel signals to loudspeaker signals which are associated to a defined reproduction scheme, such as, for example, a 5.1 scheme.
摘要翻译：为了产生具有大于多个输入通道的输出通道数量的多通道信号，混频器用于将输入信号上混合以形成至少直接信道信号和至少一个环境信道信号。提供语音检测器，用于检测语音部分发生的输入信号，直接信道信号或环境信道信号的一部分。基于该检测，信号修改器修改输入信号或环境信道信号，以便衰减环境信道信号中的语音部分，而直接信道信号中的这种语音部分被衰减到较小程度，或根本不被衰减。然后，扬声器信号输出器将直接信道信号和环境信道信号映射到与所定义的再现方案（例如5.1方案）相关联的扬声器信号。

7. 发明授权

US08731209B2 Device and method for generating a multi-channel signal including speech signal processing 有权
标题翻译：用于产生包括语音信号处理的多声道信号的装置和方法
公开(公告)号：US08731209B2
公开(公告)日：2014-05-20
申请号：US12681809
申请日：2008-10-01
申请人： Christian Uhle , Oliver Hellmuth , Juergen Herre , Harald Popp , Thorsten Kastner
发明人： Christian Uhle , Oliver Hellmuth , Juergen Herre , Harald Popp , Thorsten Kastner
IPC分类号： H04B3/00
CPC分类号： H04S5/005 , G10L19/008 , G10L21/0364 , G10L25/78
摘要： In order to generate a multi-channel signal having a number of output channels greater than a number of input channels, a mixer is used for upmixing the input signal to form at least a direct channel signal and at least an ambience channel signal. A speech detector is provided for detecting a section of the input signal, the direct channel signal or the ambience channel signal in which speech portions occur. Based on this detection, a signal modifier modifies the input signal or the ambience channel signal in order to attenuate speech portions in the ambience channel signal, whereas such speech portions in the direct channel signal are attenuated to a lesser extent or not at all. A loudspeaker signal outputter then maps the direct channel signals and the ambience channel signals to loudspeaker signals which are associated to a defined reproduction scheme, such as, for example, a 5.1 scheme.
摘要翻译：为了产生具有大于多个输入通道的输出通道数量的多通道信号，混频器用于将输入信号上混合以形成至少直接信道信号和至少一个环境信道信号。提供语音检测器，用于检测语音部分发生的输入信号，直接信道信号或环境信道信号的一部分。基于该检测，信号修改器修改输入信号或环境信道信号，以便衰减环境信道信号中的语音部分，而直接信道信号中的这种语音部分被衰减到较小程度，或根本不被衰减。然后，扬声器信号输出器将直接信道信号和环境信道信号映射到与所定义的再现方案（例如5.1方案）相关联的扬声器信号。

8. 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。

9. 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。

10. 发明授权

US09060236B2 Apparatus for providing an upmix signal representation on the basis of a downmix signal representation, apparatus for providing a bitstream representing a multi-channel audio signal, methods, computer program and bitstream using a distortion control signaling 有权
标题翻译：用于基于下混信号表示提供上混合信号表示的装置，用于提供表示多声道音频信号的比特流的装置，使用失真控制信令的方法，计算机程序和比特流
公开(公告)号：US09060236B2
公开(公告)日：2015-06-16
申请号：US13450027
申请日：2012-04-18
申请人： Jonas Engdegard , Heiko Purnhagen , Juergen Herre , Leon Terentiv , Cornelia Falch , Oliver Hellmuth
发明人： Jonas Engdegard , Heiko Purnhagen , Juergen Herre , Leon Terentiv , Cornelia Falch , Oliver Hellmuth
IPC分类号： H04R5/00 , G10L19/00 , G10L21/00 , H04S3/00 , G10L19/008
CPC分类号： H04S3/008 , G10L19/008 , H04S2420/03
摘要： An apparatus for providing an upmix signal representation on the basis of a downmix signal representation and an object-related parametric information, which are included in a bitstream representation of an audio content, and in dependence on a rendering information, has a distortion limiter configured to adjust upmix parameters using a distortion control scheme to avoid or limit audible distortions which are caused by an inappropriate choice of rendering parameters. The distortion limiter is configured to obtain a distortion limitation control parameter, which is included in the bitstream representation of the audio content, and to adjust a distortion control scheme in dependence on the distortion limitation control parameter.
摘要翻译：基于下混合信号表示和包含在音频内容的比特流表示中并且依赖于呈现信息的对象相关参数信息来提供上混合信号表示的装置具有失真限制器，其被配置为使用失真控制方案调整上混参数，以避免或限制由不适当选择渲染参数引起的可听失真。失真限制器被配置为获得包括在音频内容的比特流表示中的失真限制控制参数，并且根据失真限制控制参数来调整失真控制方案。

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