公开(公告)号：US11681490B2

公开(公告)日：2023-06-20

申请号：US17685681

申请日：2022-03-03

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Nicolas R. Tsingos ,  Rhonda Wilson ,  Sunil Bharitkar ,  C. Phillip Brown ,  Alan J. Seefeldt ,  Remi Audfray

IPC: H04S3/02 ,  H04S5/00 ,  H04S5/02 ,  G06F3/16 ,  H04S7/00 ,  H04R5/04 ,  H04S1/00 ,  G06F3/04842

CPC classification number: G06F3/162 ,  G06F3/165 ,  H04R5/04 ,  H04S1/007 ,  H04S7/304 ,  H04S7/306 ,  G06F3/04842 ,  H04S2400/03 ,  H04S2400/13 ,  H04S2420/01

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.

公开(公告)号：US11381927B2

公开(公告)日：2022-07-05

申请号：US17166162

申请日：2021-02-03

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： David S. McGrath ,  Rhonda Wilson

IPC: H04S7/00 ,  G10K15/12 ,  H04S3/02

Abstract: A method for creating an output soundfield signal from an input soundfield signal, the method including the steps of: (a) forming at least one delayed signals from the input soundfield signal, (b) for each of the delayed signals, creating an acoustically transformed delayed signal, by an acoustic transformation process, and (c) combining together the acoustically transformed delayed signals and the input soundfield signal to produce the output soundfield signal.

公开(公告)号：US20190327575A1

公开(公告)日：2019-10-24

申请号：US16309578

申请日：2017-06-20

Applicant: Dolby Laboratories Licensing Corporation

Inventor： C. Phillip Brown ,  Joshua Brandon Lando ,  Mark F. Davis ,  Alan J. Seefeldt ,  David Matthew Cooper ,  Dirk Jeroen Breebaart ,  Rhonda Wilson

IPC: H04S7/00

Abstract: A system and method of modifying a binaural signal using headtracking information. The system calculates a delay, a first filter response, and a second filter response, and applies these to the left and right components of the binaural signal according to the headtracking information. The system may also apply headtracking to parametric binaural signals. In this manner, headtracking may be applied to pre-rendered binaural audio.

公开(公告)号：US10339959B2

公开(公告)日：2019-07-02

申请号：US15321741

申请日：2015-06-24

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Claus Bauer ,  Lie LU ,  Mingqing Hu ,  Jun Wang ,  Poppy Crum ,  Rhonda Wilson ,  Regunathan Radhakrishnan

IPC: G06K9/62 ,  G10L25/54 ,  G10L25/03

Abstract: Example embodiments disclosed herein relate to perception based multimedia processing. There is provided a method for processing multimedia data, the method includes automatically determining user perception on a segment of the multimedia data based on a plurality of clusters, the plurality of clusters obtained in association with predefined user perceptions and processing the segment of the multimedia data at least in part based on determined user perception on the segment. Corresponding system and computer program products are disclosed as well.

公开(公告)号：US11553296B2

公开(公告)日：2023-01-10

申请号：US17167442

申请日：2021-02-04

Applicant: Dolby Laboratories Licensing Corporation

Inventor： C. Phillip Brown ,  Joshua Brandon Lando ,  Mark F. Davis ,  Alan J. Seefeldt ,  David Matthew Cooper ,  Dirk Jeroen Breebaart ,  Rhonda Wilson

IPC: H04S7/00

Abstract: A system and method of modifying a binaural signal using headtracking information. The system calculates a delay, a first filter response, and a second filter response, and applies these to the left and right components of the binaural signal according to the headtracking information. The system may also apply headtracking to parametric binaural signals. In this manner, headtracking may be applied to pre-rendered binaural audio.

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

IPC: H04S3/02 ,  H04S5/00 ,  H04S5/02 ,  G06F3/16 ,  H04S7/00 ,  H04R5/04 ,  H04S1/00 ,  G06F3/04842

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.

公开(公告)号：US11212638B2

公开(公告)日：2021-12-28

申请号：US17012076

申请日：2020-09-04

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： Kuan-Chieh Yen ,  Dirk Jeroen Breebaart ,  Grant A. Davidson ,  Rhonda Wilson ,  David M. Cooper ,  Zhiwei Shuang

IPC: H04S7/00 ,  G10L19/008 ,  H04S3/00

Abstract: In some embodiments, virtualization methods for generating a binaural signal in response to channels of a multi-channel audio signal, which apply a binaural room impulse response (BRIR) to each channel including by using at least one feedback delay network (FDN) to apply a common late reverberation to a downmix of the channels. In some embodiments, input signal channels are processed in a first processing path to apply to each channel a direct response and early reflection portion of a single-channel BRIR for the channel, and the downmix of the channels is processed in a second processing path including at least one FDN which applies the common late reverberation. Typically, the common late reverberation emulates collective macro attributes of late reverberation portions of at least some of the single-channel BRIRs. Other aspects are headphone virtualizers configured to perform any embodiment of the method.

公开(公告)号：US09933989B2

公开(公告)日：2018-04-03

申请号：US15031953

申请日：2014-10-28

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： Nicolas R. Tsingos ,  Rhonda Wilson ,  Sunil Bharitkar ,  C. Phillip Brown ,  Alan J. Seefeldt ,  Remi Audfray

IPC: H04S5/02 ,  H04S3/00 ,  H04S3/02 ,  G10L19/008 ,  H04R5/033 ,  G06F3/16 ,  H04S7/00 ,  H04R5/04 ,  H04S1/00 ,  G06F3/0484

CPC classification number: G06F3/162 ,  G06F3/04842 ,  H04R5/04 ,  H04S1/007 ,  H04S7/304 ,  H04S7/306 ,  H04S2400/03 ,  H04S2400/13 ,  H04S2420/01

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.

公开(公告)号：US09883311B2

公开(公告)日：2018-01-30

申请号：US14898737

申请日：2014-06-23

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： Dirk Jeroen Breebaart ,  David S. McGrath ,  Rhonda Wilson

IPC: H04S3/02 ,  G10L19/008 ,  H04S5/02 ,  H04S3/00 ,  H04S7/00 ,  G10L19/032

CPC classification number: H04S3/02 ,  G10L19/008 ,  G10L19/032 ,  H04S7/30 ,  H04S2400/11

Abstract: An audio playback system generates output signals for multiple channels of acoustic transducers by applying a rendering matrix to data representing the aural content and spatial characteristics of audio objects, so that the resulting sound field creates accurate listener impressions of the spatial characteristics. Matrix coefficients are updated to render moving objects. Discontinuous updates of the rendering matrix coefficients are controlled according to psychoacoustic principles to reduce audible artifacts. The updates may also be managed to control the amount of data needed to perform the updates.

公开(公告)号：US20160142844A1

公开(公告)日：2016-05-19

申请号：US14898737

申请日：2014-06-23

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： Dirk Jeroen Breebaart ,  David S. McGrath ,  Rhonda Wilson

IPC: H04S3/02 ,  G10L19/032 ,  G10L19/008

CPC classification number: H04S3/02 ,  G10L19/008 ,  G10L19/032 ,  H04S7/30 ,  H04S2400/11

Abstract: An audio playback system generates output signals for multiple channels of acoustic transducers by applying a rendering matrix to data representing the aural content and spatial characteristics of audio objects, so that the resulting sound field creates accurate listener impressions of the spatial characteristics. Matrix coefficients are updated to render moving objects. Discontinuous updates of the rendering matrix coefficients are controlled according to psychoacoustic principles to reduce audible artifacts. The updates may also be managed to control the amount of data needed to perform the updates.

Abstract translation: 音频播放系统通过对表示音频对象的听觉内容和空间特征的数据应用渲染矩阵来生成多声道声学换能器的输出信号，从而产生的声场产生准确的空间特征的听众印象。 更新矩阵系数以渲染移动对象。 根据心理声学原理控制渲染矩阵系数的不连续更新以减少可听见的伪像。 还可以管理更新以控制执行更新所需的数据量。