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1.发明公开公开(公告)号：US20240274139A1
公开(公告)日：2024-08-15
申请号：US18644449
申请日：2024-04-24
发明人： Guillaume FUCHS , Jürgen HERRE , Fabian KÜCH , Stefan DÖHLA , Markus MULTRUS , Oliver THIERGART , Oliver WÜBBOLT , Florin GHIDO , Stefan BAYER , Wolfgang JAEGERS
IPC分类号： G10L19/008 , G10L19/02 , G10L19/032 , G10L19/038 , G10L19/16 , G10L19/26 , H03M7/30
CPC分类号： G10L19/008 , G10L19/0204 , G10L19/032 , G10L19/038 , G10L19/167 , G10L19/26 , H03M7/3082 , H03M7/6005 , H03M7/6011
摘要： An apparatus for encoding directional audio coding parameters comprising diffuseness parameters and direction parameters having a parameter calculator (100) for calculating the diffuseness parameters with a first time or frequency resolution and for calculating the direction parameters with a second time or frequency resolution; and a quantizer and encoder processor (200) for generating a quantized and encoded representation of the diffuseness parameters and the direction parameters.
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公开(公告)号：US20240040330A1
公开(公告)日：2024-02-01
申请号：US18482478
申请日：2023-10-06
发明人： Guillaume FUCHS , Oliver THIERGART , Srikanth KORSE , Stefan DÖHLA , Markus MULTRUS , Fabian KÜCH , Alexandre BOUTHÉON , Andrea EICHENSEER , Stefan BAYER
CPC分类号： H04S7/307 , G10L19/0212 , G10L19/02 , H04S2420/11 , H04S2420/13 , H04S2400/01
摘要： An apparatus for generating a sound field description using an input signal having a mono-signal or a multi-channel signal includes: an input signal analyzer for analyzing the input signal to derive direction data and diffuseness data; a low-order components generator for generating a low-order sound field description from the input signal up to a predetermined order and mode; a mid-order components generator for generating a mid-order sound field description above the predetermined order or at the predetermined order and above the predetermined mode and below or at a first truncation order using a synthesis of at least one direct portion and of at least one diffuse portion using the direction data and the diffuseness data; and a high-order components generator for generating a high-order sound field description having a component above the first truncation order using a synthesis of at least one direct portion.
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3.发明公开公开(公告)号：US20230239644A1
公开(公告)日：2023-07-27
申请号：US18194272
申请日：2023-03-31
发明人： Franz REUTELHUBER , Guillaume FUCHS , Markus MULTRUS , Eleni FOTOPOULOU , Stefan BAYER , Jan BÜTHE , Stefan DÖHLA
IPC分类号： H04S7/00 , G06F3/16 , H04S3/00 , G10L19/008
CPC分类号： H04S7/302 , G06F3/162 , H04S3/008 , G10L19/008 , H04S2420/03 , H04S2400/01 , H04S2400/11
摘要： Apparatus for processing an audio scene representing a sound field, the audio scene comprising information on a transport signal and a set of parameters. The apparatus comprising an output interface for generating a processed audio scene using the set of parameters and the information on the transport signal, wherein the output interface is configured to generate a raw representation of two or more channels using the set of parameters and the transport signal and a multichannel enhancer for generating an enhancement representation of the two or more channels using the transport signal, and a signal combiner for combining the raw representation of the two or more channels and the enhancement representation of the two or more channels to obtain the processed audio scene.
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4.发明公开公开(公告)号：US20230238006A1
公开(公告)日：2023-07-27
申请号：US18194787
申请日：2023-04-03
发明人： Franz REUTELHUBER , Guillaume FUCHS , Markus MULTRUS , Eleni FOTOPOULOU , Stefan BAYER , Jan BÜTHE , Stefan DÖHLA
IPC分类号： G10L19/008 , H04S7/00
CPC分类号： G10L19/008 , H04S7/303 , H04S2400/01
摘要： An apparatus for processing an encoded audio scene representing a sound field related to a virtual listener position, the encoded audio scene including information on a transport signal and a first set of parameters related to the virtual listener position includes a parameter converter for converting the first set of parameters into a second set of parameters related to a channel representation including two or more channels for a reproduction at predefined spatial positions for the two or more channels, and an output interface for generating a processed audio scene using the second set of parameters and the information on the transport signal.
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公开(公告)号：US20220150635A1
公开(公告)日：2022-05-12
申请号：US17585169
申请日：2022-01-26
发明人： Guillaume FUCHS , Jürgen HERRE , Fabian KÜCH , Stefan DÖHLA , Markus MULTRUS , Oliver THIERGART , Oliver WÜBBOLT , Florin GHIDO , Stefan BAYER , Wolfgang JAEGERS
摘要： An apparatus for generating a description of a combined audio scene, includes: an input interface for receiving a first description of a first scene in a first format and a second description of a second scene in a second format, wherein the second format is different from the first format; a format converter for converting the first description into a common format and for converting the second description into the common format, when the second format is different from the common format; and a format combiner for combining the first description in the common format and the second description in the common format to obtain the combined audio scene.
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公开(公告)号：US20220093113A1
公开(公告)日：2022-03-24
申请号：US17543819
申请日：2021-12-07
发明人： Jan BÜTHE , Franz REUTELHUBER , Sascha DISCH , Guillaume FUCHS , Markus MULTRUS , Ralf GEIGER
IPC分类号： G10L19/008 , G10L19/02 , G10L19/26
摘要： An apparatus for decoding an encoded multichannel signal includes: a base channel decoder for decoding an encoded base channel to obtain a decoded base channel; a decorrelation filter for filtering at least a portion of the decoded base channel to obtain a filling signal; and a multichannel processor for performing a multichannel processing using a spectral representation of the decoded base channel and a spectral representation of the filling signal, wherein the decorrelation filter is a broad band filter and the multichannel processor is configured to apply a narrow band processing to the spectral representation of the decoded base channel and the spectral representation of the filling signal.
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公开(公告)号：US20210287689A1
公开(公告)日：2021-09-16
申请号：US17336132
申请日：2021-06-01
发明人： Sascha DISCH , Martin DIETZ , Markus MULTRUS , Guillaume FUCHS , Emmanuel RAVELLI , Matthias NEUSINGER , Markus SCHNELL , Benjamin SCHUBERT , Bernhard GRILL
IPC分类号： G10L19/18 , G10L19/028 , G10L19/032 , G10L19/06 , G10L19/26
摘要： An audio encoder for encoding an audio signal has: a first encoding processor for encoding a first audio signal portion in a frequency domain, having: a time frequency converter for converting the first audio signal portion into a frequency domain representation; an analyzer for analyzing the frequency domain representation to determine first spectral portions to be encoded with a first spectral resolution and second regions to be encoded with a second resolution; and a spectral encoder for encoding the first spectral portions with the first spectral resolution and encoding the second portions with the second resolution; a second encoding processor for encoding a second different audio signal portion in the time domain; a controller for analyzing and determining, which portion of the audio signal is the first audio signal portion encoded in the frequency domain and which portion is the second audio signal portion encoded in the time domain; and an encoded signal former for forming an encoded audio signal having a first encoded signal portion for the first audio signal portion and a second encoded signal portion for the second portion.
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公开(公告)号：US20210256984A1
公开(公告)日：2021-08-19
申请号：US17308943
申请日：2021-05-05
发明人： Stefan BAYER , Pallavi MABEN , Emmanuel RAVELLI , Guillaume FUCHS , Eleni FOTOPOULOU , Markus MULTRUS
IPC分类号： G10L19/022
摘要： An apparatus for providing a processed audio signal representation on the basis of input audio signal representation configured to apply an un-windowing, in order to provide the processed audio signal representation on the basis of the input audio signal representation. The apparatus is configured to adapt the un-windowing in dependence on one or more signal characteristics and/or in dependence on one or more processing parameters used for a provision of the input audio signal representation.
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9.发明公开公开(公告)号：US20230419976A1
公开(公告)日：2023-12-28
申请号：US18464574
申请日：2023-09-11
发明人： Jan BÜTHE , Franz REUTELHUBER , Sascha DISCH , Guillaume FUCHS , Markus MULTRUS , Ralf GEIGER
IPC分类号： G10L19/008 , G10L19/02 , G10L19/26
CPC分类号： G10L19/008 , G10L19/0204 , G10L19/26
摘要： An apparatus for decoding an encoded multichannel signal includes: a base channel decoder for decoding an encoded base channel to acquire a decoded base channel; a decorrelation filter for filtering at least a portion of the decoded base channel to acquire a filling signal; and a multichannel processor for performing a multichannel processing using a spectral representation of the decoded base channel and a spectral representation of the filling signal, wherein the decorrelation filter is a broad band filter and the multichannel processor is configured to apply a narrow band processing to the spectral representation of the decoded base channel and the spectral representation of the filling signal.
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10.发明公开公开(公告)号：US20230402046A1
公开(公告)日：2023-12-14
申请号：US18455738
申请日：2023-08-25
发明人： Sascha DISCH , Martin DIETZ , Markus MULTRUS , Guillaume FUCHS , Emmanuel RAVELLI , Matthias NEUSINGER , Markus SCHNELL , Benjamin SCHUBERT , Bernhard GRILL
IPC分类号： G10L19/18 , G10L19/028 , G10L19/032 , G10L19/06 , G10L19/26
CPC分类号： G10L19/18 , G10L19/028 , G10L19/032 , G10L19/06 , G10L19/265 , G10L19/20
摘要： An audio encoder for encoding an audio signal has: a first encoding processor for encoding a first audio signal portion in a frequency domain, having: a time frequency converter for converting the first audio signal portion into a frequency domain representation; an analyzer for analyzing the frequency domain representation to determine first spectral portions to be encoded with a first spectral resolution and second regions to be encoded with a second resolution; and a spectral encoder for encoding the first spectral portions with the first spectral resolution and encoding the second portions with the second resolution; a second encoding processor for encoding a second different audio signal portion in the time domain; a controller for analyzing and determining, which portion of the audio signal is the first audio signal portion encoded in the frequency domain and which portion is the second audio signal portion encoded in the time domain; and an encoded signal former for forming an encoded audio signal having a first encoded signal portion for the first audio signal portion and a second encoded signal portion for the second portion.
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