公开(公告)号：US10515644B2

公开(公告)日：2019-12-24

申请号：US15989073

申请日：2018-05-24

Applicant: DOLBY INTERNATIONAL AB ,  DOLBY LABORATORIES LICENSING CORPORATION

Inventor： Robert Andrew France ,  Thomas Ziegler ,  Sripal S. Mehta ,  Andrew Jonathan Dowell ,  Prinyar Saungsomboon ,  Michael David Dwyer ,  Farhad Farahani ,  Nicolas R. Tsingos ,  Freddie Sanchez

IPC: G10L19/008 ,  G10L19/20 ,  H04S7/00 ,  G06F3/16 ,  H04S3/00 ,  G10L19/16

Abstract: 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.

公开(公告)号：US10397720B2

公开(公告)日：2019-08-27

申请号：US16112394

申请日：2018-08-24

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： Remi Audfray ,  Nicolas R. Tsingos ,  Jurgen W. Scharpf

IPC: H04S3/00 ,  H04R27/00 ,  H04S7/00

Abstract: Audio signals are received. The audio signals include left and right surround channels. The audio signals are played back using far-field loudspeakers distributed around a space having a plurality of listener positions. The left and right surround channels are played back by a pair of far-field loudspeakers arranged at opposite sides of the space having the plurality of listener positions. An audio component coinciding with or approximating audio content common to the left and right surround channels is obtained. The audio component is played back using at least a pair of near-field transducers arranged at one of the listener positions. Associated systems, methods and computer program products are provided. Systems, methods and computer program products providing a bitstream comprising the audio signals and the audio component are also provided, as well as a computer-readable medium with data representing such audio content.

公开(公告)号：US20190182608A1

公开(公告)日：2019-06-13

申请号：US16210935

申请日：2018-12-05

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Christophe Chabanne ,  Nicolas R. Tsingos ,  Charles Q. Robinson

IPC: H04S3/00 ,  H04R1/40 ,  H04S7/00 ,  H04R5/02

Abstract: 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.

公开(公告)号：US10257636B2

公开(公告)日：2019-04-09

申请号：US15567908

申请日：2016-04-20

Applicant: DOLBY LABORATORIES LICENSING CORPORATION ,  DOLBY INTERNATIONAL AB

Inventor： Dirk Jeroen Breebaart ,  Antonio Mateos Sole ,  Heiko Purnhagen ,  Nicolas R. Tsingos

IPC: H04R5/02 ,  H04S7/00 ,  H04S3/00

Abstract: Described herein is a method (30) of rendering an audio signal (17) for playback in an audio environment (27) defined by a target loudspeaker system (23), the audio signal (17) including audio data relating to an audio object and associated position data indicative of an object position. Method (30) includes the initial step (31) of receiving the audio signal (17). At step (32) loudspeaker layout data for the target loudspeaker system (23) is received. At step (33) control data is received that is indicative of a position modification to be applied to the audio object in the audio environment (27). At step (38) in response to the position data, loudspeaker layout data and control data, rendering modification data is generated. Finally, at step (39) the audio signal (17) is rendered with the rendering modification data to output the audio signal (17) with the audio object at a modified object position that is between loudspeakers within the audio environment (27).

公开(公告)号：US10244343B2

公开(公告)日：2019-03-26

申请号：US15803209

申请日：2017-11-03

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Nicolas R. Tsingos ,  Charles Q. Robinson ,  Jurgen W. Scharpf

IPC: H04R5/02 ,  H04S7/00 ,  H04S3/00 ,  H04S5/00

Abstract: 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.

公开(公告)号：US10003907B2

公开(公告)日：2018-06-19

申请号：US15490613

申请日：2017-04-18

Applicant: Dolby Laboratories Licensing Corporation ,  DOLBY INTERNATIONAL AB

Inventor： Dirk Jeroen Breebaart ,  Lie Lu ,  Nicolas R. Tsingos ,  Antonio Mateos Sole

IPC: H04R5/02 ,  H04S7/00 ,  H04S3/00 ,  G10L19/008 ,  G10L19/00 ,  G10L19/018 ,  G10L19/20

CPC classification number: H04S7/308 ,  G10L19/00 ,  G10L19/008 ,  G10L19/018 ,  G10L19/20 ,  H04S3/002 ,  H04S2400/11 ,  H04S2400/13 ,  H04S2400/15 ,  H04S2420/03 ,  H04S2420/07

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.

公开(公告)号：US09858932B2

公开(公告)日：2018-01-02

申请号：US14903508

申请日：2014-07-01

Applicant: Dolby Laboratories Licensing Corporation ,  DOLBY INTERNATIONAL AB

Inventor： Brian George Arnott ,  Dirk Jeroen Breebaart ,  Antonio Mateos Sole ,  David S. McGrath ,  Heiko Purnhagen ,  Freddie Sanchez ,  Nicolas R. Tsingos

IPC: G10L21/00 ,  G10L13/00 ,  G10L19/00 ,  G10L19/008 ,  G10L19/16 ,  G10L19/005 ,  G10L19/24

CPC classification number: G10L19/0017 ,  G10L19/005 ,  G10L19/008 ,  G10L19/167 ,  G10L19/24

Abstract: 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.

公开(公告)号：US09800991B2

公开(公告)日：2017-10-24

申请号：US15483806

申请日：2017-04-10

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Charles Q. Robinson ,  Nicolas R. Tsingos ,  Christophe Chabanne

IPC: H04S7/00 ,  G10L19/008 ,  G10L19/20 ,  H04R5/02 ,  H04R5/04

CPC classification number: 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

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.

公开(公告)号：US09786286B2

公开(公告)日：2017-10-10

申请号：US14781126

申请日：2014-03-13

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Dossym Nurmukhanov ,  Sripal S. Mehta ,  Stanley G. Cossette ,  Nicolas R. Tsingos

IPC: G10L19/008 ,  H04S3/00 ,  G11B27/036 ,  G11B27/031 ,  G10L21/00

CPC classification number: G10L19/008 ,  G10L21/00 ,  G11B27/031 ,  G11B27/036 ,  H04S3/008 ,  H04S2400/03

Abstract: A low-quality rendition of a complex soundtrack is created, synchronized and combined with the soundtrack. The low-quality rendition may be monitored in mastering operations, for example, to control the removal, replacement or addition of aural content in the soundtrack without the need for expensive equipment that would otherwise be required to render the soundtrack.

公开(公告)号：US09712939B2

公开(公告)日：2017-07-18

申请号：US14908094

申请日：2014-06-17

Applicant: DOLBY INTERNATIONAL AB ,  DOLBY LABORATORIES LICENSING CORPORATION

Inventor： Antonio Mateos Sole ,  Giulio Cengarle ,  Dirk Jeroen Breebart ,  Nicolas R. Tsingos

IPC: H04R5/02 ,  H04S7/00

CPC classification number: H04S7/30 ,  H04S2400/03 ,  H04S2400/11

Abstract: A gain contribution of the audio signal for each of the N audio objects to at least one of M speakers may be determined. Determining the gain contribution may involve determining a center of loudness position that is a function of speaker (or cluster) positions and gains assigned to each speaker (or cluster). Determining the gain contribution also may involve determining a minimum value of a cost function. A first term of the cost function may represent a difference between the center of loudness position and an audio object position.