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1.发明申请公开(公告)号：US20230024873A1
公开(公告)日：2023-01-26
申请号：US17781978
申请日：2020-12-02
IPC分类号： G10L19/16
摘要： Embodiments are disclosed for channel-based audio (CBA) (e.g., 22.2-ch audio) to object-based audio (OBA) conversion. The conversion includes converting CBA metadata to object audio metadata (OAMD) and reordering the CBA channels based on channel shuffle information derived in accordance with channel ordering constraints of the OAMD. The OBA with reordered channels is rendered in a playback device using the OAMD or in a source device, such as a set-top box or audio/video recorder. In an embodiment, the CBA metadata includes signaling that indicates a specific OAMD representation to be used in the conversion of the metadata. In an embodiment, pre-computed OAMD is transmitted in a native audio bitstream (e.g., AAC) for transmission (e.g., over HDMI) or for rendering in a source device. In an embodiment, pre-computed OAMD is transmitted in a transport layer bitstream (e.g., ISO BMFF, MPEG4 audio bitstream) to a playback device or source device.
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2.发明申请公开(公告)号：US20200322751A1
公开(公告)日：2020-10-08
申请号：US16851656
申请日：2020-04-17
IPC分类号： H04S7/00
摘要： The positions of a plurality of speakers at a media consumption site are determined. Audio information in an object-based format is received. Gain adjustment value for a sound content portion in the object-based format may be determined based on the position of the sound content portion and the positions of the plurality of speakers. Audio information in a ring-based channel format is received. Gain adjustment value for each ring-based channel in a set of ring-based channels may be determined based on the ring to which the ring-based channel belongs and the positions of the speakers at a media consumption site.
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公开(公告)号：US20180268829A1
公开(公告)日：2018-09-20
申请号：US15989073
申请日：2018-05-24
发明人： Robert Andrew FRANCE , Thomas ZIEGLER , Sripal S. MEHTA , Andrew Jonathan DOWELL , Prinyar SAUNGSOMBOON , Michael David DWYER , Farhad FARAHANI , Nicolas R. Tsingos , Freddie SANCHEZ
IPC分类号： G10L19/008 , H04S3/00 , G06F3/16 , G10L19/20 , H04S7/00
摘要： Methods for generating an object based audio program which is renderable in a personalizable manner, e.g., to provide an immersive, perception of audio content of the program. Other embodiments include steps of delivering (e.g., broadcasting), decoding, and/or rendering such a program. Rendering of audio objects indicated by the program may provide an immersive experience. The audio content of the program may be indicative of multiple object channels (e.g., object channels indicative of user-selectable and user-configurable objects, and typically also a default set of objects which will be rendered in the absence of a selection by a user) and a bed of speaker channels. Another aspect is an audio processing unit (e.g., encoder or decoder) configured to perform, or which includes a buffer memory which stores at least one frame (or other segment) of an object based audio program (or bitstream thereof) generated in accordance with, any embodiment of the method.
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公开(公告)号：US20160300577A1
公开(公告)日：2016-10-13
申请号：US15094407
申请日：2016-04-08
发明人： Christof FERSCH , Freddie SANCHEZ
IPC分类号： G10L19/002
CPC分类号： H04R3/12
摘要： Example embodiments disclosed herein relate to audio content rendering. A method of rendering audio content is disclosed, which includes determining a priority level for an audio object in the audio content, selecting a rendering mode from a plurality of rendering modes for the audio object based on the determined priority level and rendering the audio object in accordance with the selected rendering mode, the rendering mode indicating an accuracy of the rendered audio object. Corresponding system and computer program product are also disclosed.
摘要翻译： 本文公开的示例实施例涉及音频内容呈现。 公开了一种呈现音频内容的方法，其包括确定音频内容中的音频对象的优先级，基于所确定的优先级，从音频对象的多个渲染模式中选择渲染模式，并将音频对象呈现 根据所选择的渲染模式，渲染模式指示所渲染的音频对象的精度。 还公开了相应的系统和计算机程序产品。
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公开(公告)号：US20160163321A1
公开(公告)日：2016-06-09
申请号：US14903508
申请日：2014-07-01
发明人： Brian George ARNOTT , Dirk Jeroen BREEBAART , Antonio MATEOS SOLE , David S. McGRATH , Heiko PURNHAGEN , Freddie SANCHEZ , Nicolas R. TSINGOS
IPC分类号： G10L19/00 , G10L19/005 , G10L19/24
CPC分类号： G10L19/0017 , G10L19/005 , G10L19/008 , G10L19/167 , G10L19/24
摘要： Embodiments are directed to a method of representing spatial rendering metadata for processing in an object-based audio system that allows for lossless interpolation and/or re-sampling of the metadata. The method comprises time stamping the metadata to create metadata instances, and encoding an interpolation duration to with each metadata instance that specifies the time to reach a desired rendering state for the respective metadata instance. The re-sampling of metadata is useful for re-clocking metadata to an audio coder and for the editing audio content.
摘要翻译： 实施例涉及一种表示用于在基于对象的音频系统中进行处理的空间渲染元数据的方法，其允许元数据的无损内插和/或重新采样。 该方法包括时间戳元数据以创建元数据实例，以及对每个元数据实例编码内插持续时间，该元数据实例指定为相应的元数据实例达到期望的呈现状态的时间。 元数据的重新采样对于将元数据重新计时到音频编码器和编辑音频内容是有用的。
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6.发明公开公开(公告)号：US20240031768A1
公开(公告)日：2024-01-25
申请号：US18353063
申请日：2023-07-15
IPC分类号： H04S7/00
CPC分类号： H04S7/308 , H04S2400/11 , H04S2400/13
摘要： The positions of a plurality of speakers at a media consumption site are determined. Audio information in an object-based format is received. Gain adjustment value for a sound content portion in the object-based format may be determined based on the position of the sound content portion and the positions of the plurality of speakers. Audio information in a ring-based channel format is received. Gain adjustment value for each ring-based channel in a set of ring-based channels may be determined based on the ring to which the ring-based channel belongs and the positions of the speakers at a media consumption site.
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公开(公告)号：US20180352366A1
公开(公告)日：2018-12-06
申请号：US16017715
申请日：2018-06-25
IPC分类号： H04S7/00
CPC分类号： H04S7/308 , H04S2400/11 , H04S2400/13
摘要： The positions of a plurality of speakers at a media consumption site are determined. Audio information in an object-based format is received. Gain adjustment value for a sound content portion in the object-based format may be determined based on the position of the sound content portion and the positions of the plurality of speakers. Audio information in a ring-based channel format is received. Gain adjustment value for each ring-based channel in a set of ring-based channels may be determined based on the ring to which the ring-based channel belongs and the positions of the speakers at a media consumption site.
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8.发明申请POSITION-BASED GAIN ADJUSTMENT OF OBJECT-BASED AUDIO AND RING-BASED CHANNEL AUDIO 审中-公开基于对象的音频和基于声道的通道音频的基于位置的增益调整公开(公告)号：US20160295343A1
公开(公告)日：2016-10-06
申请号：US15037193
申请日：2014-11-21
IPC分类号： H04S7/00
CPC分类号： H04S7/308 , H04S2400/11 , H04S2400/13
摘要： The positions of a plurality of speakers at a media consumption site are determined. Audio information in an object-based format is received. Gain adjustment value for a sound content portion in the object-based format may be determined based on the position of the sound content portion and the positions of the plurality of speakers. Audio information in a ring-based channel format is received. Gain adjustment value for each ring-based channel in a set of ring-based channels may be determined based on the ring to which the ring-based channel belongs and the positions of the speakers at a media consumption site.
摘要翻译： 确定媒体消费站点处的多个扬声器的位置。 接收基于对象的格式的音频信息。 可以基于声音内容部分的位置和多个扬声器的位置来确定基于对象的格式的声音内容部分的增益调整值。 接收基于环的频道格式的音频信息。 可以基于基于环的频道所属的环和媒体消费站点处的扬声器的位置来确定一组基于环的频道中的每个基于环的频道的增益调整值。
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公开(公告)号：US20230419973A1
公开(公告)日：2023-12-28
申请号：US18346464
申请日：2023-07-03
发明人： Robert Andrew France , Thomas ZIEGLER , Sripal S. Mehta , Andrew Jonathan DOWELL , Prinyar SAUNGSOMBOON , Michael David DWYER , Farhad FARAHANI , Nicolas R. TSINGOS , Freddie SANCHEZ
IPC分类号： G10L19/008 , G10L19/20 , H04S7/00 , G06F3/16 , H04S3/00
CPC分类号： G10L19/008 , G10L19/20 , H04S7/30 , G06F3/165 , H04S3/008 , H04S2400/13 , H04S2400/15 , G10L19/167
摘要： Methods for generating an object based audio program which is renderable in a personalizable manner, e.g., to provide an immersive, perception of audio content of the program. Other embodiments include steps of delivering (e.g., broadcasting), decoding, and/or rendering such a program. Rendering of audio objects indicated by the program may provide an immersive experience. The audio content of the program may be indicative of multiple object channels (e.g., object channels indicative of user-selectable and user-configurable objects, and typically also a default set of objects which will be rendered in the absence of a selection by a user) and a bed of speaker channels. Another aspect is an audio processing unit (e.g., encoder or decoder) configured to perform, or which includes a buffer memory which stores at least one frame (or other segment) of an object based audio program (or bitstream thereof) generated in accordance with, any embodiment of the method.
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公开(公告)号：US20220060843A1
公开(公告)日：2022-02-24
申请号：US17467112
申请日：2021-09-03
IPC分类号： H04S7/00
摘要： The positions of a plurality of speakers at a media consumption site are determined. Audio information in an object-based format is received. Gain adjustment value for a sound content portion in the object-based format may be determined based on the position of the sound content portion and the positions of the plurality of speakers. Audio information in a ring-based channel format is received. Gain adjustment value for each ring-based channel in a set of ring-based channels may be determined based on the ring to which the ring-based channel belongs and the positions of the speakers at a media consumption site.
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