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1. 发明授权

US08873764B2 Acoustic echo suppression unit and conferencing front-end 有权
标题翻译：声回声抑制单元和会议前端
公开(公告)号：US08873764B2
公开(公告)日：2014-10-28
申请号：US13272243
申请日：2011-10-13
申请人： Fabian Kuech , Markus Kallinger , Markus Schmidt , Meray Zourub , Marco Diatschuk , Oliver Moser
发明人： Fabian Kuech , Markus Kallinger , Markus Schmidt , Meray Zourub , Marco Diatschuk , Oliver Moser
IPC分类号： H04B3/20 , H04M9/08
CPC分类号： H04M9/082 , H04R3/02 , H04S2420/03 , H04S2420/11
摘要： An acoustic echo suppression unit according to an embodiment of the present invention includes and input interface for extracting a downmix signal from an input signal, the input signal including the downmix signal and parametric side information, wherein the downmix and the parametric side information together represent a multichannel signal, a calculator for calculating filter coefficients for an adaptive filter, wherein the calculator is adapted to determine the filter coefficients based on the downmix signal and a microphone signal or a signal derived from the microphone signal, and an adaptive filter adapted to filter the microphone signal or the signal derived from the microphone signal based on the filter coefficients to suppress an echo caused by the multichannel signal in the microphone signal.
摘要翻译：根据本发明实施例的声学回声抑制单元包括用于从输入信号中提取降混信号的输入接口，该输入信号包括下混合信号和参数侧信息，其中下混合和参数侧信息一起表示一个多通道信号，用于计算自适应滤波器的滤波器系数的计算器，其中所述计算器适于基于所述下混合信号和麦克风信号或从所述麦克风信号导出的信号来确定滤波器系数，以及自适应滤波器，麦克风信号或基于滤波器系数从麦克风信号导出的信号，以抑制由麦克风信号中的多声道信号引起的回波。

2. 发明授权

US09196257B2 Apparatus and a method for converting a first parametric spatial audio signal into a second parametric spatial audio signal 有权
标题翻译：用于将第一参数空间音频信号转换成第二参数空间音频信号的装置和方法
公开(公告)号：US09196257B2
公开(公告)日：2015-11-24
申请号：US13523085
申请日：2012-06-14
申请人： Richard Schultz-Amling , Fabian Kuech , Markus Kallinger , Giovanni Del Galdo , Oliver Thiergart , Dirk Mahne , Achim Kuntz
发明人： Richard Schultz-Amling , Fabian Kuech , Markus Kallinger , Giovanni Del Galdo , Oliver Thiergart , Dirk Mahne , Achim Kuntz
IPC分类号： H04R5/02 , G10L19/008 , H04N5/232 , H04N5/782 , H04S7/00 , G10L19/16 , H04S1/00 , H04S3/00
CPC分类号： G10L19/173 , G10L19/008 , G10L25/03 , G10L25/48 , H04N5/232 , H04N5/782 , H04S1/007 , H04S3/008 , H04S7/302 , H04S2400/11 , H04S2400/15 , H04S2420/03
摘要： An apparatus for converting a first parametric spatial audio signal representing a first listening position or a first listening orientation in a spatial audio scene to a second parametric spatial audio signal representing a second listening position or a second listening orientation is described, the apparatus including: a spatial audio signal modification unit adapted to modify the first parametric spatial audio signal dependent on a change of the first listening position or the first listening orientation so as to obtain the second parametric spatial audio signal, wherein the second listening position or the second listening orientation corresponds to the first listening position or the first listening orientation changed by the change.
摘要翻译：描述了一种用于将表示空间音频场景中的第一收听位置或第一收听方向的第一参数空间音频信号转换为表示第二聆听位置或第二聆听方向的第二参数空间音频信号的装置，所述装置包括：空间音频信号修改单元，其适于根据所述第一收听位置或所述第一聆听方向的改变来修改所述第一参数空间音频信号，以便获得所述第二参数空间音频信号，其中所述第二收听位置或所述第二聆听方向对应于到第一个聆听位置或第一个聆听方向改变了。

3. 发明授权

US08891797B2 Audio format transcoder 有权
标题翻译：音频格式转码器
公开(公告)号：US08891797B2
公开(公告)日：2014-11-18
申请号：US13289252
申请日：2011-11-04
申请人： Oliver Thiergart , Cornelia Falch , Fabian Kuech , Giovanni Del Galdo , Juergen Herre , Markus Kallinger
发明人： Oliver Thiergart , Cornelia Falch , Fabian Kuech , Giovanni Del Galdo , Juergen Herre , Markus Kallinger
IPC分类号： H04R11/04 , G06F17/00 , G10L21/0272 , G10L19/008
CPC分类号： G10L21/0272 , G10L19/008
摘要： An audio format transcoder for transcoding an input audio signal, the input audio signal having at least two directional audio components. The audio format transcoder including a converter for converting the input audio signal into a converted signal, the converted signal having a converted signal representation and a converted signal direction of arrival. The audio format transcoder further includes a position provider for providing at least two spatial positions of at least two spatial audio sources and a processor for processing the converted signal representation based on the at least two spatial positions to obtain at least two separated audio source measures.
摘要翻译：一种用于对输入音频信号进行代码转换的音频格式转码器，所述输入音频信号具有至少两个方向音频分量。音频格式转码器包括用于将输入音频信号转换成转换信号的转换器，转换后的信号具有转换的信号表示和转换的信号到达方向。音频格式转码器还包括用于提供至少两个空间音频源的至少两个空间位置的位置提供器和用于基于至少两个空间位置处理转换的信号表示的处理器，以获得至少两个分离的音频源测量。

4. 发明授权

US08462958B2 Apparatus and method for computing filter coefficients for echo suppression 有权
标题翻译：用于计算用于回波抑制的滤波器系数的装置和方法
公开(公告)号：US08462958B2
公开(公告)日：2013-06-11
申请号：US12864890
申请日：2009-01-16
申请人： Fabian Kuech , Markus Kallinger , Christof Faller , Alexis Favrot
发明人： Fabian Kuech , Markus Kallinger , Christof Faller , Alexis Favrot
IPC分类号： H04B3/20
CPC分类号： H04M9/082 , G10L21/0208 , G10L2021/02082 , H04B3/237
摘要： A preferred embodiment of an apparatus for computing filter coefficients for an adaptive filter for filtering a microphone signal so as to suppress an echo due to a loudspeaker signal includes an extractor for extracting a stationary component signal or a non-stationary component signal from the loudspeaker signal or from a signal derived from the loudspeaker signal, and a computer for computing the filter coefficients for the adaptive filter on the basis of the extracted stationary component signal or the extracted non-stationary component signal.
摘要翻译：用于计算用于滤波麦克风信号的滤波器系数的滤波器系数的装置的优选实施例，以便抑制由于扬声器信号引起的回波，包括用于从扬声器信号中提取静止分量信号或非平稳分量信号的提取器或者根据从扬声器信号得到的信号，以及计算机，用于基于所提取的固定分量信号或所提取的非平稳分量信号来计算用于自适应滤波器的滤波器系数。

5. 发明申请

US20110222694A1 APPARATUS FOR DETERMINING A CONVERTED SPATIAL AUDIO SIGNAL 有权
标题翻译：用于确定转换空间音频信号的装置
公开(公告)号：US20110222694A1
公开(公告)日：2011-09-15
申请号：US13026012
申请日：2011-02-11
申请人： Giovanni Del Galdo , Fabian Kuech , Markus Kallinger , Ville Pulkki , Mikko-Ville Latinen , Richard Schultz-Amling
发明人： Giovanni Del Galdo , Fabian Kuech , Markus Kallinger , Ville Pulkki , Mikko-Ville Latinen , Richard Schultz-Amling
IPC分类号： H04R5/00
CPC分类号： H04S3/02 , G10L19/008 , H04S2400/15 , H04S2420/03 , H04S2420/11
摘要： An apparatus for determining a converted spatial audio signal, the converted spatial audio signal having an omnidirectional audio component and at least one directional audio component, from an input spatial audio signal, the input spatial audio signal having an input audio representation and an input direction of arrival. The apparatus has an estimator for estimating a wave representation having a wave field measure and a wave direction of arrival measure based on the input audio representation and the input direction of arrival. The apparatus further has a processor for processing the wave field measure and the wave direction of arrival measure to obtain the omnidirectional audio component and the at least one directional component.
摘要翻译：一种用于从输入的空间音频信号确定转换的空间音频信号的装置，所转换的空间音频信号具有全向音频分量和至少一个定向音频分量，所述输入空间音频信号具有输入音频表示和输入方向到达。该装置具有估计器，用于基于输入的音频表示和输入的到达方向来估计具有波场测量值和波形到达度量的波形表示。该装置还具有用于处理波场测量和波浪到达方向测量的处理器，以获得全向音频分量和至少一个方向分量。

6. 发明申请

US20110044461A1 APPARATUS AND METHOD FOR COMPUTING CONTROL INFORMATION FOR AN ECHO SUPPRESSION FILTER AND APPARATUS AND METHOD FOR COMPUTING A DELAY VALUE 有权
标题翻译：用于计算ECHO抑制过滤器的控制信息的装置和方法以及计算延迟值的装置和方法
公开(公告)号：US20110044461A1
公开(公告)日：2011-02-24
申请号：US12864240
申请日：2009-01-12
申请人： Fabian Kuech , Markus Kallinger , Christof Faller , Alexis Favrot
发明人： Fabian Kuech , Markus Kallinger , Christof Faller , Alexis Favrot
IPC分类号： H04B3/20 , H03G3/00
CPC分类号： H04M9/082
摘要： An embodiment of an apparatus for computing control information for a suppression filter for filtering a second audio signal to suppress an echo based on a first audio signal includes a computer having a value determiner for determining at least one energy-related value for a band-pass signal of at least two temporally successive data blocks of at least one signal of a group of signals. The computer further includes a mean value determiner for determining at least one mean value of the at least one determined energy-related value for the band-pass signal. The computer further includes a modifier for modifying the at least one energy-related value for the band-pass signal on the basis of the determined mean value for the band-pass signal. The computer further includes a control information computer for computing the control information for the suppression filter on the basis of the at least one modified energy-related value.
摘要翻译：用于计算用于滤波第二音频信号以抑制基于第一音频信号的回波的抑制滤波器的控制信息的装置的实施例包括具有用于确定带通的至少一个能量相关值的值确定器的计算机一组信号的至少一个信号的至少两个时间上连续的数据块的信号。该计算机还包括一个平均值确定器，用于确定该带通信号的至少一个确定的能量相关值的至少一个平均值。该计算机还包括修改器，用于基于确定的带通信号的平均值修改带通信号的至少一个能量相关值。计算机还包括控制信息计算机，用于基于至少一个修改的能量相关值来计算抑制滤波器的控制信息。

7. 发明授权

US08611550B2 Apparatus for determining a converted spatial audio signal 有权
标题翻译：用于确定转换的空间音频信号的装置
公开(公告)号：US08611550B2
公开(公告)日：2013-12-17
申请号：US13026012
申请日：2011-02-11
申请人： Giovanni Del Galdo , Fabian Kuech , Markus Kallinger , Ville Pulkki , Mikko-Ville Laitinen , Richard Schultz-Amling
发明人： Giovanni Del Galdo , Fabian Kuech , Markus Kallinger , Ville Pulkki , Mikko-Ville Laitinen , Richard Schultz-Amling
IPC分类号： H03G3/00 , H04R5/00
CPC分类号： H04S3/02 , G10L19/008 , H04S2400/15 , H04S2420/03 , H04S2420/11
摘要： An apparatus for determining a converted spatial audio signal, the converted spatial audio signal having an omnidirectional audio component and at least one directional audio component, from an input spatial audio signal, the input spatial audio signal having an input audio representation and an input direction of arrival. The apparatus has an estimator for estimating a wave representation having a wave field measure and a wave direction of arrival measure based on the input audio representation and the input direction of arrival. The apparatus further has a processor for processing the wave field measure and the wave direction of arrival measure to obtain the omnidirectional audio component and the at least one directional component.
摘要翻译：一种用于从输入的空间音频信号确定转换的空间音频信号的装置，所转换的空间音频信号具有全向音频分量和至少一个定向音频分量，所述输入空间音频信号具有输入音频表示和输入方向到达。该装置具有估计器，用于基于输入的音频表示和输入的到达方向来估计具有波场测量值和波形到达度量的波形表示。该装置还具有用于处理波场测量和波浪到达方向测量的处理器，以获得全向音频分量和至少一个方向分量。

8. 发明申请

US20110216908A1 APPARATUS FOR MERGING SPATIAL AUDIO STREAMS 有权
标题翻译：装备空间音频流的装置
公开(公告)号：US20110216908A1
公开(公告)日：2011-09-08
申请号：US13026023
申请日：2011-02-11
申请人： Giovanni Del Galdo , Fabian Kuech , Markus Kallinger , Ville Pulkki , Mikko-Ville Laitinen , Richard Schultz-Amling
发明人： Giovanni Del Galdo , Fabian Kuech , Markus Kallinger , Ville Pulkki , Mikko-Ville Laitinen , Richard Schultz-Amling
IPC分类号： H04R5/00
CPC分类号： H04S3/008 , G10L19/008 , H04S2420/03 , H04S2420/11
摘要： An apparatus for merging a first spatial audio stream with a second spatial audio stream to obtain a merged audio stream comprising an estimator for estimating a first wave representation comprising a first wave direction measure and a first wave field measure for the first spatial audio stream, the first spatial audio stream having a first audio representation and a first direction of arrival. The estimator being adapted for estimating a second wave representation comprising a second wave direction measure and a second wave field measure for the second spatial audio stream, the second spatial audio stream having a second audio representation and a second direction of arrival. The apparatus further comprising a processor for processing the first wave representation and the second wave representation to obtain a merged wave representation comprising a merged wave field measure and a merged direction of arrival measure, and for processing the first audio representation and the second audio representation to obtain a merged audio representation, and for providing the merged audio stream comprising the merged audio representation and the merged direction of arrival measure.
摘要翻译：一种用于将第一空间音频流与第二空间音频流合并以获得合并音频流的装置，其包括用于估计第一波形表示的估计器，所述第一波形表示包括第一空间音频流的第一波方向测量和第一波场测量，第一空间音频流具有第一音频表示和第一到达方向。估计器适于估计第二波形表示，其包括用于第二空间音频流的第二波方向测量和第二波场测量，所述第二空间音频流具有第二音频表示和第二方向。该装置还包括处理器，用于处理第一波形表示和第二波形表示以获得包括合并的波场测量和合并的到达方向测量的合并波形表示，并且用于将第一音频表示和第二音频表示处理获得合并的音频表示，并且用于提供包括合并的音频表示和合并的到达方向度量的合并音频流。

9. 发明授权

US08731207B2 Apparatus and method for computing control information for an echo suppression filter and apparatus and method for computing a delay value 有权
标题翻译：用于计算回波抑制滤波器的控制信息的装置和方法以及用于计算延迟值的装置和方法
公开(公告)号：US08731207B2
公开(公告)日：2014-05-20
申请号：US12864240
申请日：2009-01-12
申请人： Fabian Kuech , Markus Kallinger , Christof Faller , Alexis Favrot
发明人： Fabian Kuech , Markus Kallinger , Christof Faller , Alexis Favrot
IPC分类号： H04B3/20 , H03G3/00
CPC分类号： H04M9/082
摘要： An embodiment of an apparatus for computing control information for a suppression filter for filtering a second audio signal to suppress an echo based on a first audio signal includes a computer having a value determiner for determining at least one energy-related value for a band-pass signal of at least two temporally successive data blocks of at least one signal of a group of signals. The computer further includes a mean value determiner for determining at least one mean value of the at least one determined energy-related value for the band-pass signal. The computer further includes a modifier for modifying the at least one energy-related value for the band-pass signal on the basis of the determined mean value for the band-pass signal. The computer further includes a control information computer for computing the control information for the suppression filter on the basis of the at least one modified energy-related value.
摘要翻译：用于计算用于滤波第二音频信号以抑制基于第一音频信号的回波的抑制滤波器的控制信息的装置的实施例包括具有用于确定带通的至少一个能量相关值的值确定器的计算机一组信号的至少一个信号的至少两个时间上连续的数据块的信号。该计算机还包括一个平均值确定器，用于确定该带通信号的至少一个确定的能量相关值的至少一个平均值。该计算机还包括修改器，用于基于确定的带通信号的平均值修改带通信号的至少一个能量相关值。计算机还包括控制信息计算机，用于基于至少一个修改的能量相关值来计算抑制滤波器的控制信息。

10. 发明授权

US08712059B2 Apparatus for merging spatial audio streams 有权
标题翻译：用于合并空间音频流的装置
公开(公告)号：US08712059B2
公开(公告)日：2014-04-29
申请号：US13026023
申请日：2011-02-11
申请人： Giovanni Del Galdo , Fabian Kuech , Markus Kallinger , Ville Pulkki , Mikko-Ville Laitinen , Richard Schultz-Amling
发明人： Giovanni Del Galdo , Fabian Kuech , Markus Kallinger , Ville Pulkki , Mikko-Ville Laitinen , Richard Schultz-Amling
IPC分类号： H04R5/00 , H03G3/00
CPC分类号： H04S3/008 , G10L19/008 , H04S2420/03 , H04S2420/11
摘要： An apparatus for merging a first spatial audio stream with a second spatial audio stream to obtain a merged audio stream comprising an estimator for estimating a first wave representation comprising a first wave direction measure and a first wave field measure for the first spatial audio stream, the first spatial audio stream having a first audio representation and a first direction of arrival. The estimator being adapted for estimating a second wave representation comprising a second wave direction measure and a second wave field measure for the second spatial audio stream, the second spatial audio stream having a second audio representation and a second direction of arrival. The apparatus further comprising a processor for processing the first wave representation and the second wave representation to obtain a merged wave representation comprising a merged wave field measure and a merged direction of arrival measure, and for processing the first audio representation and the second audio representation to obtain a merged audio representation, and for providing the merged audio stream comprising the merged audio representation and the merged direction of arrival measure.
摘要翻译：一种用于将第一空间音频流与第二空间音频流合并以获得合并音频流的装置，其包括用于估计第一波形表示的估计器，所述第一波形表示包括第一空间音频流的第一波方向测量和第一波场测量，第一空间音频流具有第一音频表示和第一到达方向。估计器适于估计第二波形表示，其包括用于第二空间音频流的第二波方向测量和第二波场测量，所述第二空间音频流具有第二音频表示和第二方向。该装置还包括处理器，用于处理第一波形表示和第二波形表示以获得包括合并的波场测量和合并的到达方向测量的合并波形表示，并且用于将第一音频表示和第二音频表示处理获得合并的音频表示，并且用于提供包括合并的音频表示和合并的到达方向度量的合并音频流。

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