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1. 发明申请

WO2017035281A2 AUDIO ENCODING AND DECODING USING PRESENTATION TRANSFORM PARAMETERS 审中-公开
标题翻译：使用演示变换参数进行音频编码和解码
公开(公告)号：WO2017035281A2
公开(公告)日：2017-03-02
申请号：PCT/US2016/048497
申请日：2016-08-24
申请人： DOLBY INTERNATIONAL AB , DOLBY LABORATORIES LICENSING CORPORATION
发明人： BREEBAART, Dirk J. , COOPER, David M. , SAMUELSSON, Leif J. , KOPPENS, Jeroen , WILSON, Rhonda J. , PURNHAGEN, Heiko , GROESCHEL, Alexander
IPC分类号： H04S1/00
CPC分类号： H04S3/008 , G10L19/008 , H04S1/002 , H04S1/007 , H04S3/004 , H04S7/306 , H04S2400/01 , H04S2400/03 , H04S2400/11 , H04S2420/01 , H04S2420/03
摘要： A method for encoding an input audio stream including the steps of obtaining a first playback stream presentation of the input audio stream intended for reproduction on a first audio reproduction system, obtaining a second playback stream presentation of the input audio stream intended for reproduction on a second audio reproduction system, determining a set of transform parameters suitable for transforming an intermediate playback stream presentation to an approximation of the second playback stream presentation, wherein the transform parameters are determined by minimization of a measure of a difference between the approximation of the second playback stream presentation and the second playback stream presentation, and encoding the first playback stream presentation and the set of transform parameters for transmission to a decoder.
摘要翻译：一种用于对输入音频流进行编码的方法，包括以下步骤：在第一音频再现系统上获得用于再现的输入音频流的第一重放流呈现步骤，在第二音频再现系统中获得用于再现的输入音频流的第二播放流呈现音频再现系统，确定适合于将中间回放流呈现变换为第二重放流呈现的近似的一组变换参数，其中通过最小化第二重放流的近似之间的差的度量来确定变换参数呈现和第二播放流呈现，以及对第一重放流呈现和变换参数集合进行编码以便传输到解码器。

2. 发明申请

WO2014046916A1 LAYERED APPROACH TO SPATIAL AUDIO CODING 审中-公开
标题翻译：空间音频编码的层次化方法
公开(公告)号：WO2014046916A1
公开(公告)日：2014-03-27
申请号：PCT/US2013/059025
申请日：2013-09-10
申请人： DOLBY LABORATORIES LICENSING CORPORATION , DOLBY INTERNATIONAL AB
发明人： DICKINS, Glenn , PURNHAGEN, Heiko , SAMUELSSON, Leif J.
IPC分类号： G10L19/008 , G10L21/02 , H03G9/02 , G10L19/02
CPC分类号： G10L19/012 , G10L19/008 , G10L19/02 , G10L19/0208 , G10L19/032 , G10L19/22 , G10L19/24 , G10L21/02 , G10L21/0208 , G10L21/0216 , H04M3/56
摘要： The invention provides a layered audio coding format with a monophonic layer and at least one sound field layer. A plurality of audio signals is decomposed, in accordance with decomposition parameters controlling the quantitative properties of an or- thogonal energy-compacting transform, into rotated audio signals. Further, a time- variable gain profile specifying constructively how the rotated audio signals may be processed to attenuate undesired audio content is derived. The monophonic layer may comprise one of the rotated signals and the gain profile. The sound field layer may comprise the rotated signals and the decomposition parameters. In one embodiment, the gain profile comprises a cleaning gain profile with the main purpose of eliminating non-speech components and/or noise. The gain profile may also com- prise mutually independent broadband gains. Because signals in the audio coding format can be mixed with a limited computational effort, the invention may advanta- geously be applied in a tele-conferencing application.
摘要翻译：本发明提供了具有单声道层和至少一个声场层的分层音频编码格式。根据控制正交能量压缩变换的定量特性的分解参数将多个音频信号分解成旋转的音频信号。此外，推导出时间变量增益曲线，其具体地指定如何处理旋转的音频信号以衰减不期望的音频内容。单声道层可以包括旋转的信号之一和增益分布。声场层可以包括旋转的信号和分解参数。在一个实施例中，增益分布包括清除增益曲线，其主要目的是消除非语音分量和/或噪声。增益曲线也可以相互独立的宽带增益。因为音频编码格式的信号可以以有限的计算量来混合，所以本发明可以有利地应用在电话会议应用中。

3. 发明申请

WO2016049106A1 INSERTION OF SOUND OBJECTS INTO A DOWNMIXED AUDIO SIGNAL 审中-公开
标题翻译：声音对象插入下降的音频信号
公开(公告)号：WO2016049106A1
公开(公告)日：2016-03-31
申请号：PCT/US2015/051585
申请日：2015-09-23
申请人： DOLBY LABORATORIES LICENSING CORPORATION , DOLBY INTERNATIONAL AB
发明人： SAMUELSSON, Leif J. , WILLIAMS, Phillip , SCHINDLER, Christian , SCHILDBACH, Wolfgang A.
IPC分类号： G10L19/008 , H04S3/00 , G10L19/16
CPC分类号： H04S3/008 , G10L19/008 , G10L19/167 , G10L21/00 , H04S2400/01 , H04S2400/03 , H04S2400/11 , H04S2420/03
摘要： A method for inserting a first audio signal into a bitstream which comprises a downmix signal and associated bitstream metadata is described. The downmix signal and associated bitstream metadata are indicative of an audio program comprising a plurality of spatially diverse audio signals. The downmix signal comprises at least one audio channel and the bitstream metadata comprise upmix metadata for reproducing the plurality of spatially diverse audio signals from the at least one channel. The method comprises mixing the first audio signal with the at least one audio channel to generate a modified downmix signal. The method further comprises generating an output bitstream comprising the modified downmix signal and the associated modified bitstream metadata indicative of a modified audio program comprising a plurality of modified spatially diverse audio signals.
摘要翻译：描述了一种用于将第一音频信号插入到包括下混信号和相关比特流元数据的比特流中的方法。下混合信号和相关比特流元数据表示包括多个空间上不同的音频信号的音频节目。下混合信号包括至少一个音频信道，并且比特流元数据包括用于从至少一个信道再现多个空间上不同的音频信号的上混合元数据。该方法包括将第一音频信号与至少一个音频通道混合以产生修改的下混合信号。该方法还包括生成包括经修改的下混合信号的输出比特流和相关联的修改的比特流元数据，其指示包括多个经修改的空间多样化音频信号的修改的音频节目。

4. 发明申请

WO2014046923A1 AUDIO CODING WITH GAIN PROFILE EXTRACTION AND TRANSMISSION FOR SPEECH ENHANCEMENT AT THE DECODER 审中-公开
标题翻译：音频编码与增益简档提取和传输在解码器中进行语音增强
公开(公告)号：WO2014046923A1
公开(公告)日：2014-03-27
申请号：PCT/US2013/059144
申请日：2013-09-11
申请人： DOLBY LABORATORIES LICENSING CORPORATION , DOLBY INTERNATIONAL AB
发明人： DICKINS, Glenn , PURNHAGEN, Heiko , SAMUELSSON, Leif J.
IPC分类号： G10L21/02 , H04M3/56 , H03G9/02 , G10L19/008 , G10L19/02
CPC分类号： G10L19/012 , G10L19/008 , G10L19/02 , G10L19/0208 , G10L19/032 , G10L19/22 , G10L19/24 , G10L21/02 , G10L21/0208 , G10L21/0216 , H04M3/56
摘要： The invention provides a layered audio coding format with a monophonic layer and at least one sound field layer. A plurality of audio signals is decomposed, in accord- ance with decomposition parameters controlling the quantitative properties of an or- thogonal energy-compacting transform, into rotated audio signals. Further, a time- variable gain profile specifying constructively how the rotated audio signals may be processed to attenuate undesired audio content is derived. The monophonic layer may comprise one of the rotated signals and the gain profile. The sound field layer may comprise the rotated signals and the decomposition parameters. In one embodiment, the gain profile comprises a cleaning gain profile with the main purpose of eliminating non-speech components and/or noise. The gain profile may also com- prise mutually independent broadband gains. Because signals in the audio coding format can be mixed with a limited computational effort, the invention may advanta- geously be applied in a tele-conferencing application.
摘要翻译：本发明提供了具有单声道层和至少一个声场层的分层音频编码格式。根据控制正交能量压缩变换的定量特性的分解参数，多个音频信号被分解成旋转的音频信号。此外，推导出时间变量增益曲线，其具体地指定如何处理旋转的音频信号以衰减不期望的音频内容。单声道层可以包括旋转的信号之一和增益分布。声场层可以包括旋转的信号和分解参数。在一个实施例中，增益分布包括清除增益曲线，其主要目的是消除非语音分量和/或噪声。增益曲线也可以相互独立的宽带增益。因为音频编码格式的信号可以以有限的计算量来混合，所以本发明可以有利地应用在电话会议应用中。

5. 发明公开

EP4224887A1 AUDIO ENCODING AND DECODING USING PRESENTATION TRANSFORM PARAMETERS 审中-实审
公开(公告)号：EP4224887A1
公开(公告)日：2023-08-09
申请号：EP23162644.1
申请日：2016-08-24
申请人： Dolby International AB , Dolby Laboratories Licensing Corporation
发明人： BREEBAART, Dirk Jeroen , COOPER, David M. , SAMUELSSON, Leif J. , KOPPENS, Jeroen , WILSON, Rhonda Joy , PURNHAGEN, Heiko , STAHLMANN, Alexander
IPC分类号： H04S1/00 , H04S3/00 , H04S7/00
摘要： A method for encoding an input audio stream including the steps of obtaining a first playback stream presentation of the input audio stream intended for reproduction on a first audio reproduction system, obtaining a second playback stream presentation of the input audio stream intended for reproduction on a second audio reproduction system, determining a set of transform parameters suitable for transforming an intermediate playback stream presentation to an approximation of the second playback stream presentation, wherein the transform parameters are determined by minimization of a measure of a difference between the approximation of the second playback stream presentation and the second playback stream presentation, and encoding the first playback stream presentation and the set of transform parameters for transmission to a decoder.

6. 发明授权

EP3198594B1 INSERTION OF SOUND OBJECTS INTO A DOWNMIXED AUDIO SIGNAL 有权转让
公开(公告)号：EP3198594B1
公开(公告)日：2018-11-28
申请号：EP15775873.1
申请日：2015-09-23
申请人： Dolby Laboratories Licensing Corporation , Dolby International AB
发明人： SAMUELSSON, Leif J. , WILLIAMS, Phillip , SCHINDLER, Christian , SCHILDBACH, Wolfgang A.
IPC分类号： G10L19/008 , H04S3/00 , G10L19/16 , G10L21/00
CPC分类号： H04S3/008 , G10L19/008 , G10L19/167 , G10L21/00 , H04S2400/01 , H04S2400/03 , H04S2400/11 , H04S2420/03
摘要： A method for inserting a first audio signal into a bitstream which comprises a downmix signal and associated bitstream metadata is described. The downmix signal and associated bitstream metadata are indicative of an audio program comprising a plurality of spatially diverse audio signals. The downmix signal comprises at least one audio channel and the bitstream metadata comprise upmix metadata for reproducing the plurality of spatially diverse audio signals from the at least one channel. The method comprises mixing the first audio signal with the at least one audio channel to generate a modified downmix signal. The method further comprises generating an output bitstream comprising the modified downmix signal and the associated modified bitstream metadata indicative of a modified audio program comprising a plurality of modified spatially diverse audio signals.

7. 发明公开

EP3342186A2 AUDIO ENCODING AND DECODING USING PRESENTATION TRANSFORM PARAMETERS 有权转让
公开(公告)号：EP3342186A2
公开(公告)日：2018-07-04
申请号：EP16770381.8
申请日：2016-08-24
申请人： Dolby International AB , Dolby Laboratories Licensing Corporation
发明人： BREEBAART, Dirk Jeroen , COOPER, David M. , SAMUELSSON, Leif J. , KOPPENS, Jeroen , WILSON, Rhonda Joy , PURNHAGEN, Heiko , STAHLMANN, Alexander
IPC分类号： H04S1/00 , H04S3/00 , H04S7/00
CPC分类号： H04S3/008 , G10L19/008 , H04S1/002 , H04S1/007 , H04S3/004 , H04S7/306 , H04S2400/01 , H04S2400/03 , H04S2400/11 , H04S2420/01 , H04S2420/03
摘要： A method for encoding an input audio stream including the steps of obtaining a first playback stream presentation of the input audio stream intended for reproduction on a first audio reproduction system, obtaining a second playback stream presentation of the input audio stream intended for reproduction on a second audio reproduction system, determining a set of transform parameters suitable for transforming an intermediate playback stream presentation to an approximation of the second playback stream presentation, wherein the transform parameters are determined by minimization of a measure of a difference between the approximation of the second playback stream presentation and the second playback stream presentation, and encoding the first playback stream presentation and the set of transform parameters for transmission to a decoder.

8. 发明公开

EP3198594A1 INSERTION OF SOUND OBJECTS INTO A DOWNMIXED AUDIO SIGNAL 有权转让
标题翻译：将声音对象插入失真的音频信号
公开(公告)号：EP3198594A1
公开(公告)日：2017-08-02
申请号：EP15775873.1
申请日：2015-09-23
申请人： Dolby Laboratories Licensing Corp. , Dolby International AB
发明人： SAMUELSSON, Leif J. , WILLIAMS, Phillip , SCHINDLER, Christian , SCHILDBACH, Wolfgang A.
IPC分类号： G10L19/008 , H04S3/00 , G10L19/16
CPC分类号： H04S3/008 , G10L19/008 , G10L19/167 , G10L21/00 , H04S2400/01 , H04S2400/03 , H04S2400/11 , H04S2420/03
摘要： A method for inserting a first audio signal into a bitstream which comprises a downmix signal and associated bitstream metadata is described. The downmix signal and associated bitstream metadata are indicative of an audio program comprising a plurality of spatially diverse audio signals. The downmix signal comprises at least one audio channel and the bitstream metadata comprise upmix metadata for reproducing the plurality of spatially diverse audio signals from the at least one channel. The method comprises mixing the first audio signal with the at least one audio channel to generate a modified downmix signal. The method further comprises generating an output bitstream comprising the modified downmix signal and the associated modified bitstream metadata indicative of a modified audio program comprising a plurality of modified spatially diverse audio signals.
摘要翻译：描述了用于将第一音频信号插入包括下混音信号和相关联的比特流元数据的比特流中的方法。缩混信号和相关联的比特流元数据指示包括多个空间分集音频信号的音频节目。缩混信号包括至少一个音频信道，并且比特流元数据包括用于再现来自至少一个信道的多个空间分集音频信号的上混元数据。该方法包括混合第一音频信号与至少一个音频声道以生成修改的下混信号。该方法进一步包括产生输出比特流，该输出比特流包括经修改的下混音信号和指示包括多个经修改的空间不同的音频信号的经修改的音频节目的相关联的经修改的比特流元数据。

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