专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

51. 发明授权

US11412342B2 System and method for adaptive audio signal generation, coding and rendering 有权
公开(公告)号：US11412342B2
公开(公告)日：2022-08-09
申请号：US17156459
申请日：2021-01-22
申请人： Dolby Laboratories Licensing Corporation
发明人： Charles Q. Robinson , Nicolas R. Tsingos , Christophe Chabanne
IPC分类号： H04S7/00 , H04R27/00 , H04S3/00 , H04R5/02 , H04R5/04 , H04S5/00 , G10L19/20 , G10L19/008
摘要： Embodiments are described for an adaptive audio system that processes audio data comprising a number of independent monophonic audio streams. One or more of the streams has associated with it metadata that specifies whether the stream is a channel-based or object-based stream. Channel-based streams have rendering information encoded by means of channel name; and the object-based streams have location information encoded through location expressions encoded in the associated metadata. A codec packages the independent audio streams into a single serial bitstream that contains all of the audio data. This configuration allows for the sound to be rendered according to an allocentric frame of reference, in which the rendering location of a sound is based on the characteristics of the playback environment (e.g., room size, shape, etc.) to correspond to the mixer's intent. The object position metadata contains the appropriate allocentric frame of reference information required to play the sound correctly using the available speaker positions in a room that is set up to play the adaptive audio content.

52. 发明授权

US10939219B2 Methods, apparatus and systems for audio reproduction 有权
公开(公告)号：US10939219B2
公开(公告)日：2021-03-02
申请号：US16688713
申请日：2019-11-19
申请人： DOLBY LABORATORIES LICENSING CORPORATION
发明人： Christophe Chabanne , Nicolas R. Tsingos , Charles Q. Robinson
IPC分类号： H04S3/00 , H04R5/02 , H04S7/00 , H04R1/40
摘要： Audio perception in local proximity to visual cues is provided. A device includes a video display, first row of audio transducers, and second row of audio transducers. The first and second rows can be vertically disposed above and below the video display. An audio transducer of the first row and an audio transducer of the second row form a column to produce, in concert, an audible signal. The perceived emanation of the audible signal is from a plane of the video display (e.g., a location of a visual cue) by weighing outputs of the audio transducers of the column. In certain embodiments, the audio transducers are spaced farther apart at a periphery for increased fidelity in a center portion of the plane and less fidelity at the periphery.

53. 发明授权

US10531222B2 Active acoustics control for near- and far-field sounds 有权
公开(公告)号：US10531222B2
公开(公告)日：2020-01-07
申请号：US16162895
申请日：2018-10-17
申请人： Dolby Laboratories Licensing Corporation
发明人： Nicolas R. Tsingos
IPC分类号： H04S7/00 , G10L21/0232 , H04R5/02 , H04R5/04 , H04R3/12 , G10L21/0208
摘要： Some disclosed methods may involve receiving audio reproduction data, including audio objects, differentiating near-field audio objects and far-field audio objects in the audio reproduction data, and rendering the far-field audio objects into speaker feed signals for room speakers of a reproduction environment. Each speaker feed signal may correspond to at least one of the room speakers. The near-field audio objects may be rendered into speaker feed signals for near-field speakers and/or headphone speakers of the reproduction environment. Reverberant audio objects may be generated based on physical microphone data from physical microphones in the reproduction environment and from virtual microphone data that is calculated for near-field audio objects. The reverberant audio objects may be rendered into speaker feed signals for the room speakers.

54. 发明授权

US10395664B2 Adaptive Quantization 有权
公开(公告)号：US10395664B2
公开(公告)日：2019-08-27
申请号：US16072168
申请日：2017-01-26
申请人： Dolby Laboratories Licensing Corporation
发明人： Nicolas R. Tsingos , Zachary Gideon Cohen , Vivek Kumar
IPC分类号： G10L19/032 , G10L19/20 , G10L19/002 , G10L19/00 , H03M1/00
摘要： An importance metric, based at least in part on an energy metric, may be determined for each of a plurality of received audio objects. Some methods may involve: determining a global importance metric for all of the audio objects, based, at least in part, on a total energy value calculated by summing the energy metric of each of the audio objects; determining an estimated quantization bit depth and a quantization error for each of the audio objects; calculating a total noise metric for all of the audio objects, the total noise metric being based, at least in part, on a total quantization error corresponding with the estimated quantization bit depth; calculating a total signal-to-noise ratio corresponding with the total noise metric and the total energy value; and determining a final quantization bit depth for each of the audio objects by applying a signal-to-noise ratio threshold to the total signal-to-noise ratio.

55. 发明授权

US09756444B2 Rendering audio using speakers organized as a mesh of arbitrary N-gons 有权
公开(公告)号：US09756444B2
公开(公告)日：2017-09-05
申请号：US14780159
申请日：2014-03-19
申请人： DOLBY LABORATORIES LICENSING CORPORATION
发明人： Nicolas R. Tsingos
IPC分类号： H04S3/00
CPC分类号： H04S3/002 , H04S2400/11
摘要： In some embodiments, a method for rendering an audio program indicative of at least one source, including by panning the source along a trajectory comprising source locations using speakers organized as a mesh whose faces are convex N-gons, where N can vary from face to face, and N is not equal to three for at least one face of the mesh, including steps of: for each source location, determining an intersecting face of the mesh (including the source location's projection on the mesh), thereby determining a subset of the speakers whose positions coincide with the intersecting face's vertices, and determining gains (which may be determined by generalized barycentric coordinates) for speaker feeds for driving each speaker subset to emit sound perceived as emitting from the source location corresponding to the subset. Other aspects include systems configured (e.g., programmed) to perform any embodiment of the method.

56. 发明授权

US09622009B2 System and method for adaptive audio signal generation, coding and rendering 有权
公开(公告)号：US09622009B2
公开(公告)日：2017-04-11
申请号：US15263279
申请日：2016-09-12
申请人： Dolby Laboratories Licensing Corporation
发明人： Charles Q. Robinson , Nicolas R. Tsingos , Christophe Chabanne
IPC分类号： H04S5/00 , G10L19/20 , H04S7/00
CPC分类号： H04S7/308 , G10L19/008 , G10L19/20 , H04R5/02 , H04R5/04 , H04R27/00 , H04S3/008 , H04S5/00 , H04S5/005 , H04S7/30 , H04S7/302 , H04S7/305 , H04S2400/01 , H04S2400/03 , H04S2400/11 , H04S2420/01 , H04S2420/03 , H04S2420/11 , H04S2420/13
摘要： Embodiments are described for an adaptive audio system that processes audio data comprising a number of independent monophonic audio streams. One or more of the streams has associated with it metadata that specifies whether the stream is a channel-based or object-based stream. Channel-based streams have rendering information encoded by means of channel name; and the object-based streams have location information encoded through location expressions encoded in the associated metadata. A codec packages the independent audio streams into a single serial bitstream that contains all of the audio data. This configuration allows for the sound to be rendered according to an allocentric frame of reference, in which the rendering location of a sound is based on the characteristics of the playback environment (e.g., room size, shape, etc.) to correspond to the mixer's intent. The object position metadata contains the appropriate allocentric frame of reference information required to play the sound correctly using the available speaker positions in a room that is set up to play the adaptive audio content.

57. 发明授权

US08755543B2 Techniques for localized perceptual audio 有权
标题翻译：本地化感知音频技术
公开(公告)号：US08755543B2
公开(公告)日：2014-06-17
申请号：US13892507
申请日：2013-05-13
申请人： Dolby Laboratories Licensing Corporation
发明人： Christophe Chabanne , Charles Q. Robinson , Nicolas R. Tsingos
IPC分类号： H04R5/02
CPC分类号： H04N5/642 , H04N5/60 , H04R3/12 , H04R5/02 , H04R2499/15 , H04S7/00 , H04S7/30 , H04S2400/11
摘要： Audio perception in local proximity to visual cues is provided. A device includes a video display, first row of audio transducers, and second row of audio transducers. The first and second rows can be vertically disposed above and below the video display. An audio transducer of the first row and an audio transducer of the second row form a column to produce, in concert, an audible signal. The perceived emanation of the audible signal is from a plane of the video display (e.g., a location of a visual cue) by weighing outputs of the audio transducers of the column In certain embodiments, the audio transducers are spaced farther apart at a periphery for increased fidelity in a center portion of the plane and less fidelity at the periphery.
摘要翻译：提供本地接近视觉线索的音频感知。一种设备包括视频显示器，第一排音频换能器和第二排音频换能器。第一行和第二行可以垂直设置在视频显示器的上方和下方。第一行的音频换能器和第二排的音频换能器形成一列，以一致地产生一个可听见的信号。通过对列的音频换能器的输出进行称重，可听信号的感知发射是通过对视频显示器的平面（例如，视觉提示的位置）进行加权的。在某些实施例中，音频换能器在外围间隔更远，在平面的中心部分增加了保真度，并且在周边具有较低的保真度。

58. 发明授权

US11641562B2 System and tools for enhanced 3D audio authoring and rendering 有权
公开(公告)号：US11641562B2
公开(公告)日：2023-05-02
申请号：US17364912
申请日：2021-07-01
申请人： Dolby Laboratories Licensing Corporation
发明人： Nicolas R. Tsingos , Charles Q. Robinson , Jurgen W. Scharpf
IPC分类号： H04R5/02 , H04S7/00 , H04S3/00 , H04S5/00
摘要： Improved tools for authoring and rendering audio reproduction data are provided. Some such authoring tools allow audio reproduction data to be generalized for a wide variety of reproduction environments. Audio reproduction data may be authored by creating metadata for audio objects. The metadata may be created with reference to speaker zones. During the rendering process, the audio reproduction data may be reproduced according to the reproduction speaker layout of a particular reproduction environment.

59. 发明申请

US20220345845A1 Method, Systems and Apparatus for Hybrid Near/Far Virtualization for Enhanced Consumer Surround Sound 有权
公开(公告)号：US20220345845A1
公开(公告)日：2022-10-27
申请号：US17763124
申请日：2020-09-22
申请人： Dolby Laboratories Licensing Corporation
发明人： Nicolas R. Tsingos , Satej Suresh Pankey , Vimal Puthanveed , Poppy Anne Carrie Crum , Jeffrey Ross Baker , Ian Eric Esten , Scott Daly , Daniel Paul Darcy
IPC分类号： H04S7/00
摘要： Embodiments are disclosed for hybrid near/far-field speaker virtualization. In an embodiment, a method comprises: receiving a source signal including channel-based audio or audio objects; generating near-field gain(s) and far-field gain(s) based on the source signal and a blending mode; generating a far-field signal based, at least in part, on the source signal and the far-field gain(s); rendering, using a speaker virtualizer, the far-field signal for playback of far-field acoustic audio through far-field speakers into an audio reproduction environment; generating a near-field signal based at least in part on the source signal and the near-field gain(s); prior to providing the far-field signal to the far-field speakers, sending the near-field signal to a near-field playback device or an intermediate device coupled to the near-field playback device; providing the far-field signal to the far-field speakers; and providing the near-field signal to the near-field speakers to synchronously overlay the far-field acoustic audio.

60. 发明授权

US11363398B2 Metadata-preserved audio object clustering 有权
公开(公告)号：US11363398B2
公开(公告)日：2022-06-14
申请号：US15535398
申请日：2015-12-10
申请人： Dolby Laboratories Licensing Corporation
发明人： Lianwu Chen , Lie Lu , Nicolas R. Tsingos
IPC分类号： H04S3/00 , H04S7/00 , G06K9/62
摘要： Example embodiments disclosed herein relate to audio object clustering. A method for metadata-preserved audio object clustering is disclosed. The method comprises classifying a plurality of audio objects into a number of categories based on information to be preserved in metadata associated with the plurality of audio objects. The method further comprises assigning a predetermined number of clusters to the categories and allocating an audio object in each of the categories to at least one of the clusters according to the assigning. Corresponding system and computer program product are also disclosed.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式