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1. 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。

2. 发明授权

US07460994B2 Method and apparatus for producing a fingerprint, and method and apparatus for identifying an audio signal 有权
标题翻译：用于制造指纹的方法和装置，以及用于识别音频信号的方法和装置
公开(公告)号：US07460994B2
公开(公告)日：2008-12-02
申请号：US10483452
申请日：2002-06-20
申请人： Jürgen Herre , Eric Allamanche , Oliver Hellmuth , Thorsten Kastner , Markus Cremer
发明人： Jürgen Herre , Eric Allamanche , Oliver Hellmuth , Thorsten Kastner , Markus Cremer
IPC分类号： G10L15/00
CPC分类号： G06K9/00523 , G06F17/30743 , G11B27/11 , G11B27/28
摘要： For producing a fingerprint of an audio signal, use is made of information defining a plurality of predetermined fingerprint modi, all of the fingerprint modi relating to the same type of fingerprint, the fingerprint modi, however, providing different fingerprints differing from each other with regard to their data volume, on the one hand, and to their characterizing strength for characterizing the audio signal, on the other hand, the fingerprint modi being pre-determined such that a fingerprint in accordance with a fingerprint modus having a first characterizing strength is convertible to a fingerprint in accordance with a fingerprint modus having a second characterizing strength, without using the audio signal. A predetermined fingerprint modus of the plurality of predetermined fingerprint modi is set and subsequently used for computing a fingerprint using the audio signal. The convertibility feature of the fingerprints having been produced by the different fingerprint modi enables setting a flexible compromise between the data volume and the characterizing strength for certain applications without having to re-generate a fingerprint database with each change of the fingerprint modus. Fingerprint representations scaled with regard to time or frequency may readily be converted to a different fingerprint modus.
摘要翻译：为了产生音频信号的指纹，使用定义多个预定指纹模式的信息，与相同类型的指纹相关的所有指纹模式，指纹模式，然而，提供彼此不同的不同指纹一方面涉及它们的数据量，以及它们用于表征音频信号的特征强度，另一方面，预先指定的指纹模式使得根据具有第一特征强度的指纹模式的指纹可转换根据具有第二特征强度的指纹模式，指纹，而不使用音频信号。设置多个预定指纹模式的预定指纹模式，并随后用于使用音频信号计算指纹。由不同的指纹模式产生的指纹的可转换特征使得能够在某些应用的数据量和特征强度之间设置灵活的折衷，而不必随着指纹模式的每次变化重新生成指纹数据库。关于时间或频率缩放的指纹表示可以容易地转换成不同的指纹模式。

3. 发明授权

US07478045B2 Method and device for characterizing a signal and method and device for producing an indexed signal 有权
标题翻译：用于表征信号的方法和装置以及用于产生索引信号的方法和装置
公开(公告)号：US07478045B2
公开(公告)日：2009-01-13
申请号：US10484513
申请日：2002-07-15
申请人： Eric Allamanche , Jürgen Herre , Oliver Hellmuth , Thorsten Kastner
发明人： Eric Allamanche , Jürgen Herre , Oliver Hellmuth , Thorsten Kastner
IPC分类号： G10L15/02 , G10L19/02
CPC分类号： G10H1/0008 , G10H2240/061 , G10H2240/135 , G10H2250/235 , G10H2250/601 , G10L15/04 , G10L19/0204
摘要： In a method for characterizing a signal representing an audio content a measure is determined for a tonality of the signal, whereupon a statement is made about the audio content of the signal on the basis of the measure for the tonality of the signal. The measure for the tonality is derived from a quotient whose numerator is the mean of the summed values of spectral components of the signal exponentiated with a first power and whose denominator is the mean of the summed values of spectral components exponentiated with a second power, the first and second powers differing from each other. The measure for the tonality of the signal for the content analysis is robust in relation to a signal distortion, due e.g. to MP3 coding, and has a high correlation with the content of the analyzed signal.
摘要翻译：在表征音频内容的信号的表征方法中，针对信号的音调确定了一个度量，然后根据该信号音调的度量，对该信号的音频内容做出声明。音调的度量来自商，其分子是以第一功率取幂的信号的频谱分量的总和值的平均值，其分母是用第二功率指数的频谱分量的总和值的平均值，第一和第二权力彼此不同。用于内容分析的信号的音调的度量相对于信号失真是鲁棒的，例如。到MP3编码，并且与分析的信号的内容具有高度的相关性。

4. 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。

5. 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。

6. 发明申请

US20070140500A1 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：US20070140500A1
公开(公告)日：2007-06-21
申请号：US11313180
申请日：2005-12-20
申请人： Oliver Hellmuth , Jurgen Herre , Harald Popp , Andreas Walter
发明人： Oliver Hellmuth , Jurgen Herre , Harald Popp , Andreas Walter
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的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。

7. 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。

8. 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.

9. 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。

10. 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。

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