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1.发明授权公开(公告)号：US11882426B2
公开(公告)日：2024-01-23
申请号：US17743442
申请日：2022-05-12
发明人： Christof Fersch , Leon Terentiv , Daniel Fischer
IPC分类号： H04S7/00
CPC分类号： H04S7/303 , H04S2400/11
摘要： Described is a method of processing position information indicative of an object position of an audio object, wherein the object position is usable for rendering of the audio object, that comprises: obtaining listener orientation information indicative of an orientation of a listener's head; obtaining listener displacement information indicative of a displacement of the listener's head; determining the object position from the position information; modifying the object position based on the listener displacement information by applying a translation to the object position; and further modifying the modified object position based on the listener orientation information. Further described is a corresponding apparatus for processing position information indicative of an object position of an audio object, wherein the object position is usable for rendering of the audio object.
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公开(公告)号：US11540079B2
公开(公告)日：2022-12-27
申请号：US17046295
申请日：2019-04-08
发明人： Leon Terentiv , Christof Fersch , Daniel Fischer
IPC分类号： H04S7/00 , G10L19/008 , H04S3/00
摘要： The present disclosure relates to a method of decoding audio scene content from a bitstream by a decoder that includes an audio renderer with one or more rendering tools. The method comprises receiving the bitstream, decoding a description of an audio scene from the bitstream, determining one or more effective audio elements from the description of the audio scene, determining effective audio element information indicative of effective audio element positions of the one or more effective audio elements from the description of the audio scene, decoding a rendering mode indication from the bitstream, wherein the rendering mode indication is indicative of whether the one or more effective audio elements represent a sound field obtained from pre-rendered audio elements and should be rendered using a predetermined rendering mode, and in response to the rendering mode indication indicating that the one or more effective audio elements represent the sound field obtained from pre-rendered audio elements and should be rendered using the predetermined rendering mode, rendering the one or more effective audio elements using the predetermined rendering mode, wherein rendering the one or more effective audio elements using the predetermined rendering mode takes into account the effective audio element information, and wherein the predetermined rendering mode defines a predetermined configuration of the rendering tools for controlling an impact of an acoustic environment of the audio scene on the rendering output. The disclosure further relates to a method of generating audio scene content and a method of encoding audio scene content into a bitstream.
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公开(公告)号：US11437048B2
公开(公告)日：2022-09-06
申请号：US15930292
申请日：2020-05-12
IPC分类号： G10L19/008 , H04S7/00 , G11B27/034 , G11B27/10 , G10L19/018 , G10L19/16 , G11B27/32 , G11B27/34
摘要： A method for generating a bitstream indicative of an object based audio program is described. The bitstream comprises a sequence of containers. A first container of the sequence of containers comprises a plurality of substream entities for a plurality of substreams of the object based audio program and a presentation section. The method comprises determining a set of object channels. The method further comprises providing a set of object related metadata for the set of object channels. In addition, the method comprises inserting a first set of object channel frames and a first set of object related metadata frames into a respective set of substream entities of the first container. Furthermore, the method comprises inserting presentation data into the presentation section.
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4.发明授权公开(公告)号：US11375332B2
公开(公告)日：2022-06-28
申请号：US17045983
申请日：2019-04-09
发明人： Christof Fersch , Leon Terentiv , Daniel Fischer
IPC分类号： H04S7/00
摘要： Described is a method of processing position information indicative of an object position of an audio object, wherein the object position is usable for rendering of the audio object, that comprises: obtaining listener orientation information indicative of an orientation of a listener's head; obtaining listener displacement information indicative of a displacement of the listener's head; determining the object position from the position information; modifying the object position based on the listener displacement information by applying a translation to the object position; and further modifying the modified object position based on the listener orientation information. Further described is a corresponding apparatus for processing position information indicative of an object position of an audio object, wherein the object position is usable for rendering of the audio object.
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5.发明申请公开(公告)号：US20220165284A1
公开(公告)日：2022-05-26
申请号：US17544959
申请日：2021-12-08
发明人： Stephan Schreiner , Christof Fersch
IPC分类号： G10L19/16 , G10L19/008 , H04N21/426 , H04N21/434 , H04N21/4363 , H04N21/439
摘要： The disclosure relates to methods, apparatus and systems for side load processing of packetized media streams. In an embodiment, the apparatus comprises: a receiver for receiving a bitstream, and a splitter for identifying a packet type in the bitstream and splitting, based on the identification of a value of the packet type in the bit stream into a main stream and an auxiliary stream.
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公开(公告)号：US11315578B2
公开(公告)日：2022-04-26
申请号：US17047403
申请日：2019-04-15
IPC分类号： G10L19/008 , H04S7/00
摘要： Some disclosed methods involve encoding or decoding directional audio data. Some encoding methods may involve receiving a mono audio signal corresponding to an audio object and a representation of a radiation pattern corresponding to the audio object. The radiation pattern may include sound levels corresponding to plurality of sample times, a plurality of frequency bands and a plurality of directions. The methods may involve encoding the mono audio signal and encoding the source radiation pattern to determine radiation pattern metadata. Encoding the radiation pattern may involve determining a spherical harmonic transform of the representation of the radiation pattern and compressing the spherical harmonic transform to obtain encoded radiation pattern metadata.
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公开(公告)号：US11109178B2
公开(公告)日：2021-08-31
申请号：US16954301
申请日：2018-12-18
发明人： Leon Terentiv , Christof Fersch , Daniel Fischer
摘要： A method (910) for rendering an audio signal in a virtual reality rendering environment (180) is described. The method (910) comprises rendering (911) an origin audio signal of an audio source (311, 312, 313) from an origin source position on an origin sphere (114) around an origin listening position (301) of a listener (181). Furthermore, the method (900) comprises determining (912) that the listener (181) moves from the origin listening position (301) to a destination listening position (302). In addition, the method (900) comprises determining (913) a destination source position of the audio source (311, 312, 313) on a destination sphere (114) around the destination listening position (302) based on the origin source position, and determining (914) a destination audio signal of the audio source (311, 312, 313) based on the origin audio signal. Furthermore, the method (900) comprises rendering (915) the destination audio signal of the audio source (311, 312, 313) from the destination source position on the destination sphere (114) around the destination listening position (302).
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公开(公告)号：US11967330B2
公开(公告)日：2024-04-23
申请号：US17635183
申请日：2020-08-13
IPC分类号： G10L19/083 , G10L19/16
CPC分类号： G10L19/083 , G10L19/167
摘要： Described herein is a method for generating a modified bitstream on a source device, wherein the method includes the steps of: a) receiving, by a receiver, a bitstream including coded media data; b) generating, by an embedder, payload of additional media data and embedding the payload in the bitstream for obtaining, as an output from the embedder, a modified bitstream including the coded media data and the payload of the additional media data; and c) outputting the modified bitstream to a sink device. Described is further a method for processing said modified bitstream on a sink device. Described are moreover a respective source device and sink device as well as a system of a source device and a sink device and respective computer program products.
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公开(公告)号：US11902769B2
公开(公告)日：2024-02-13
申请号：US17621547
申请日：2020-06-30
发明人： Leon Terentiv , Christof Fersch , Daniel Fischer
IPC分类号： H04S7/00 , G10L19/008 , H04S3/00 , H04S3/02
CPC分类号： H04S7/302 , G10L19/008 , H04S3/008 , H04S2400/01 , H04S2400/11 , H04S2400/13 , H04S2420/03
摘要： The present disclosure relates to a method of processing audio content including directivity information for at least one sound source, the directivity information comprising a first set of first directivity unit vectors representing directivity directions and associated first directivity gains. The disclosure further relates to corresponding methods of encoding and decoding audio content including directivity information for at least one sound source.
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公开(公告)号：US11432099B2
公开(公告)日：2022-08-30
申请号：US17046735
申请日：2019-04-09
发明人： Leon Terentiv , Christof Fersch , Daniel Fischer
IPC分类号： H04S7/00 , G10L19/008 , G10L19/16 , H04S3/00
摘要： The present disclosure relates to methods, apparatus and systems for encoding an audio signal into a bitstream, in particular at an encoder, comprising: encoding or including audio signal data associated with 3DoF audio rendering into one or more first bitstream parts of the bitstream, and encoding or including metadata associated with 6DoF audio rendering into one or more second bitstream parts of the bitstream. The present disclosure further relates to methods, apparatus and systems for decoding an audio signal and audio rendering based on the bitstream.
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