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61.发明申请公开(公告)号：US20220345845A1
公开(公告)日：2022-10-27
申请号：US17763124
申请日：2020-09-22
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Nicolas R. Tsingos , Satej Suresh Pankey , Vimal Puthanveed , Poppy Anne Carrie Crum , Jeffrey Ross Baker , Ian Eric Esten , Scott Daly , Daniel Paul Darcy
IPC: H04S7/00
Abstract: 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.
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公开(公告)号：US11363398B2
公开(公告)日：2022-06-14
申请号：US15535398
申请日：2015-12-10
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Lianwu Chen , Lie Lu , Nicolas R. Tsingos
Abstract: 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.
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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
Inventor： Nicolas R. Tsingos , Mark R. P. Thomas , Christof Fersch
IPC: G10L19/008 , H04S7/00
Abstract: 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：US11269586B2
公开(公告)日：2022-03-08
申请号：US17098268
申请日：2020-11-13
Applicant: DOLBY LABORATORIES LICENSING CORPORATION
Inventor： Nicolas R. Tsingos , Rhonda Wilson , Sunil Bharitkar , C. Phillip Brown , Alan J. Seefeldt , Remi Audfray
Abstract: Embodiments are described for a method of rendering audio for playback through headphones comprising receiving digital audio content, receiving binaural rendering metadata generated by an authoring tool processing the received digital audio content, receiving playback metadata generated by a playback device, and combining the binaural rendering metadata and playback metadata to optimize playback of the digital audio content through the headphones.
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公开(公告)号：US11064310B2
公开(公告)日：2021-07-13
申请号：US16820769
申请日：2020-03-17
Inventor： Dirk Jeroen Breebaart , Lie Lu , Nicolas R. Tsingos , Antonio Mateos Sole
IPC: G10L19/20 , G10L19/018 , G10L19/00 , H04S3/00 , H04S7/00 , G10L19/008
Abstract: Diffuse or spatially large audio objects may be identified for special processing. A decorrelation process may be performed on audio signals corresponding to the large audio objects to produce decorrelated large audio object audio signals. These decorrelated large audio object audio signals may be associated with object locations, which may be stationary or time-varying locations. For example, the decorrelated large audio object audio signals may be rendered to virtual or actual speaker locations. The output of such a rendering process may be input to a scene simplification process. The decorrelation, associating and/or scene simplification processes may be performed prior to a process of encoding the audio data.
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Patent Agency Ranking
公开(公告)号：US11032639B2
公开(公告)日：2021-06-08
申请号：US16509973
申请日：2019-07-12
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Nicolas R. Tsingos
IPC: H04R1/40 , G10L19/20 , G10L19/008 , G01S5/02 , H04R3/00
Abstract: Input audio data, including first microphone audio signals and second microphone audio signals output by a pair of coincident, vertically-stacked directional microphones, may be received. An azimuthal angle corresponding to a sound source location may be determined, based at least in part on an intensity difference between the first microphone audio signals and the second microphone audio signals. An elevation angle corresponding to a sound source location may be determined, based at least in part on a temporal difference between the first microphone audio signals and the second microphone audio signals. Output audio data, including at least one audio object corresponding to a sound source, may be generated. The audio object may include audio object signals and associated audio object metadata. The audio object metadata may include at least audio object location data corresponding to the sound source location.
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公开(公告)号：US10652684B2
公开(公告)日：2020-05-12
申请号：US15894626
申请日：2018-02-12
Inventor： Antonio Mateos Sole , Nicolas R. Tsingos
Abstract: Multiple virtual source locations may be defined for a volume within which audio objects can move. A set-up process for rendering audio data may involve receiving reproduction speaker location data and pre-computing gain values for each of the virtual sources according to the reproduction speaker location data and each virtual source location. The gain values may be stored and used during “run time,” during which audio reproduction data are rendered for the speakers of the reproduction environment. During run time, for each audio object, contributions from virtual source locations within an area or volume defined by the audio object position data and the audio object size data may be computed. A set of gain values for each output channel of the reproduction environment may be computed based, at least in part, on the computed contributions. Each output channel may correspond to at least one reproduction speaker of the reproduction environment.
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公开(公告)号：US10567879B2
公开(公告)日：2020-02-18
申请号：US16270544
申请日：2019-02-07
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Remi S. Audfray , Nicolas R. Tsingos , Pradeep Kumar Govindaraju
Abstract: Some disclosed methods may involve receiving audio reproduction data and determining, based on the audio reproduction data, a sound source location at which a sound is to be rendered. A near-field gain and a far-field gain may be based, at least in part, on a sound source distance between the sound source location and a reproduction environment location. Room speaker feed signals may be based, at least in part, on room speaker positions, the sound source location and the far-field gain. Near-field speaker feed signals may be based, at least in part, on the near-field gain, the sound source location and a position of near-field speakers.
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公开(公告)号：US10375472B2
公开(公告)日：2019-08-06
申请号：US15736713
申请日：2016-07-01
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Nicolas R. Tsingos
IPC: H04R1/40 , H04R3/00 , G10L19/008 , G01S5/02 , G10L19/20
Abstract: Input audio data, including first microphone audio signals and second microphone audio signals output by a pair of coincident, vertically-stacked directional microphones, may be received. An azimuthal angle corresponding to a sound source location may be determined, based at least in part on an intensity difference between the first microphone audio signals and the second microphone audio signals. An elevation angle corresponding to a sound source location may be determined, based at least in part on a temporal difference between the first microphone audio signals and the second microphone audio signals. Output audio data, including at least one audio object corresponding to a sound source, may be generated. The audio object may include audio object signals and associated audio object metadata. The audio object metadata may include at least audio object location data corresponding to the sound source location.
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公开(公告)号：US10165387B2
公开(公告)日：2018-12-25
申请号：US16035262
申请日：2018-07-13
Applicant: DOLBY LABORATORIES LICENSING CORPORATION
Inventor： Charles Q. Robinson , Nicolas R. Tsingos , Christophe Chabanne
Abstract: 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.
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