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1. 发明申请

US20230065644A1 METHODS, APPARATUS AND SYSTEMS FOR 6DOF AUDIO RENDERING AND DATA REPRESENTATIONS AND BITSTREAM STRUCTURES FOR 6DOF AUDIO RENDERING 有权
公开(公告)号：US20230065644A1
公开(公告)日：2023-03-02
申请号：US17896005
申请日：2022-08-25
申请人： DOLBY INTERNATIONAL AB
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.

2. 发明申请

US20210092546A1 METHOD AND SYSTEM FOR HANDLING LOCAL TRANSITIONS BETWEEN LISTENING POSITIONS IN A VIRTUAL REALITY ENVIRONMENT 有权
公开(公告)号：US20210092546A1
公开(公告)日：2021-03-25
申请号：US16954301
申请日：2018-12-18
申请人： DOLBY INTERNATIONAL AB
发明人： Leon TERENTIV , Christof FERSCH , Daniel FISCHER
IPC分类号： H04S7/00 , H04S3/00
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).

3. 发明申请

US20210037335A1 METHODS, APPARATUS AND SYSTEMS FOR THREE DEGREES OF FREEDOM (3DOF+) EXTENSION OF MPEG-H 3D AUDIO 有权
公开(公告)号：US20210037335A1
公开(公告)日：2021-02-04
申请号：US17045983
申请日：2019-04-09
申请人： DOLBY INTERNATIONAL AB
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.

4. 发明申请

US20220272480A1 METHODS, APPARATUS AND SYSTEMS FOR THREE DEGREES OF FREEDOM (3DOF+) EXTENSION OF MPEG-H 3D AUDIO 有权
公开(公告)号：US20220272480A1
公开(公告)日：2022-08-25
申请号：US17743439
申请日：2022-05-12
申请人： DOLBY INTERNATIONAL AB
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.

5. 发明申请

US20220230644A1 METHODS AND DEVICES FOR GENERATION AND PROCESSING OF MODIFIED BITSTREAMS 有权
公开(公告)号：US20220230644A1
公开(公告)日：2022-07-21
申请号：US17633829
申请日：2020-08-13
申请人： Dolby Laboratories Licensing Corporation , Dolby International AB
发明人： Christof FERSCH , Daniel FISCHER , Leon TERENTIV , Gregory John MCGARRY
IPC分类号： G10L19/16 , G10L19/018 , H04W4/80
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 d) 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.

6. 发明申请

US20210120360A1 METHODS, APPARATUS AND SYSTEMS FOR A PRE-RENDERED SIGNAL FOR AUDIO RENDERING 有权
公开(公告)号：US20210120360A1
公开(公告)日：2021-04-22
申请号：US17046295
申请日：2019-04-08
申请人： DOLBY INTERNATIONAL AB
发明人： Leon TERENTIV , Christof FERSCH , Daniel FISCHER
IPC分类号： H04S7/00 , H04S3/00 , G10L19/008
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.

7. 发明申请

US20220377484A1 METHODS, APPARATUS AND SYSTEMS FOR REPRESENTATION, ENCODING, AND DECODING OF DISCRETE DIRECTIVITY DATA 有权
公开(公告)号：US20220377484A1
公开(公告)日：2022-11-24
申请号：US17621547
申请日：2020-06-30
申请人： Dolby International AB
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 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.

8. 发明申请

US20220272481A1 METHODS, APPARATUS AND SYSTEMS FOR THREE DEGREES OF FREEDOM (3DOF+) EXTENSION OF MPEG-H 3D AUDIO 有权
公开(公告)号：US20220272481A1
公开(公告)日：2022-08-25
申请号：US17743442
申请日：2022-05-12
申请人： DOLBY INTERNATIONAL AB
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.

9. 发明申请

US20220086588A1 METHOD AND SYSTEM FOR HANDLING LOCAL TRANSITIONS BETWEEN LISTENING POSITIONS IN A VIRTUAL REALITY ENVIRONMENT 有权
公开(公告)号：US20220086588A1
公开(公告)日：2022-03-17
申请号：US17461341
申请日：2021-08-30
申请人： DOLBY INTERNATIONAL AB
发明人： Leon TERENTIV , Christof FERSCH , Daniel FISCHER
IPC分类号： H04S7/00 , H04S3/00
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).

10. 发明申请

US20210168550A1 METHODS, APPARATUS AND SYSTEMS FOR 6DOF AUDIO RENDERING AND DATA REPRESENTATIONS AND BITSTREAM STRUCTURES FOR 6DOF AUDIO RENDERING 有权
公开(公告)号：US20210168550A1
公开(公告)日：2021-06-03
申请号：US17046735
申请日：2019-04-09
申请人： DOLBY INTERNATIONAL AB
发明人： Leon TERENTIV , Christof FERSCH , Daniel FISCHER
IPC分类号： H04S7/00 , G10L19/16 , G10L19/008 , 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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