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    Metadata-preserved audio object clustering
    62.
    发明授权
    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

    Applicant: Dolby Laboratories Licensing Corporation

    Inventor： Lianwu Chen ,  Lie Lu ,  Nicolas R. Tsingos

    IPC: H04S3/00 ,  H04S7/00 ,  G06K9/62

    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.

    METHOD AND SYSTEM FOR CREATING OBJECT-BASED AUDIO CONTENT
    63.
    发明申请
    METHOD AND SYSTEM FOR CREATING OBJECT-BASED AUDIO CONTENT 有权

    公开(公告)号：US20210295820A1

    公开(公告)日：2021-09-23

    申请号：US17260569

    申请日：2019-07-17

    Applicant: DOLBY INTERNATIONAL AB ,  DOLBY LABORATORIES LICENSING CORPORATION

    Inventor： Toni Hirvonen ,  Daniel Arteaga ,  Eduard Aylon Pla ,  Alex Cabrer Manning ,  Lie Lu ,  Karl Jonas Roeden

    IPC: G10L13/10 ,  H04S7/00

    Abstract: Described herein is a method for creating object-based audio content from a text input for use in audio books and/or audio play, the method including the steps of: a) receiving the text input; b) performing a semantic analysis of the received text input; c) synthesizing speech and effects based on one or more results of the semantic analysis to generate one or more audio objects; d) generating metadata for the one or more audio objects; and e) creating the object-based audio content including the one or more audio objects and the metadata. Described herein are further a computer-based system including one or more processors configured to perform said method and a computer program product comprising a computer-readable storage medium with instructions adapted to carry out said method when executed by a device having processing capability.

    Audio object clustering based on renderer-aware perceptual difference
    65.
    发明授权
    Audio object clustering based on renderer-aware perceptual difference 有权

    公开(公告)号：US10779106B2

    公开(公告)日：2020-09-15

    申请号：US16310569

    申请日：2017-07-13

    Applicant: DOLBY LABORATORIES LICENSING CORPORATION

    Inventor： Lianwu Chen ,  Lie Lu ,  Dirk Jeroen Breebaart

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

    Abstract: Example embodiments disclosed herein relate to audio object clustering based on renderer-aware perceptual difference. A method of processing audio objects is provided. The method includes obtaining renderer-related information indicating a configuration of a renderer. The method also includes determining, based on the obtained renderer-related information, a rendering difference between a first audio object and a second audio object among the audio objects with respect to the renderer. The method further includes clustering the audio objects at least in part based on the rendering difference. Corresponding system, device, and computer program product are also disclosed.

    Content-adaptive surround sound virtualization
    68.
    发明授权
    Content-adaptive surround sound virtualization 有权

    公开(公告)号：US10306392B2

    公开(公告)日：2019-05-28

    申请号：US15772383

    申请日：2016-11-02

    Applicant: Dolby Laboratories Licensing Corporation

    Inventor： Xin Liu ,  Lie Lu ,  Alan J. Seefeldt

    IPC: H04S5/00 ,  H04S7/00 ,  H04R1/26 ,  G06F17/18 ,  G06F16/683 ,  G06F17/30

    Abstract: Example embodiments disclosed herein relate to content-adaptive surround sound virtualization. A method of virtualizing surround sound is disclosed. The method includes receiving a set of input audio signals, each of the input audio signals being indicative of sound from one of different sound sources, and determining a probability of the set of input audio signals belonging to a predefined audio content category. The method also includes determining a virtualization amount based on the determined probability, the virtualization amount indicating to which extent the set of input audio signals is virtualized as surround sound. The method further includes performing surround sound virtualization on two or more input audio signals in the set based on the determined virtualization amount and generating output audio signals based on the virtualized input audio signals and other input audio signals in the set. Corresponding system and computer program product for virtualizing surround sound are also disclosed.

    Processing object-based audio signals
    69.
    发明授权
    Processing object-based audio signals 有权

    公开(公告)号：US10251010B2

    公开(公告)日：2019-04-02

    申请号：US16143351

    申请日：2018-09-26

    Applicant: DOLBY LABORATORIES LICENSING CORPORATION

    Inventor： Alan J. Seefeldt ,  Lie Lu ,  Chen Zhang

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

    Abstract: An audio processing system and method which calculates, based on spatial metadata of the audio object, a panning coefficient for each of the audio objects in relation to each of a plurality of predefined channel coverage zones. Converts the audio signal into submixes in relation to the predefined channel coverage zones based on the calculated panning coefficients and the audio objects. Each of the submixes indicating a sum of components of the plurality of the audio objects in relation to one of the predefined channel coverage zones. Generating a submix gain by applying an audio processing to each of the submix and controls an object gain applied to each of the audio objects. The object gain being as a function of the panning coefficients for each of the audio objects and the submix gains in relation to each of the predefined channel coverage zones.

    Processing object-based audio signals
    70.
    发明授权
    Processing object-based audio signals 有权

    公开(公告)号：US10111022B2

    公开(公告)日：2018-10-23

    申请号：US15577510

    申请日：2016-05-26

    Applicant: DOLBY LABORATORIES LICENSING CORPORATION

    Inventor： Alan J. Seefeldt ,  Lie Lu ,  Chen Zhang

    IPC: H04S7/00 ,  H04S3/00

    Abstract: An audio processing system and method which calculates, based on spatial metadata of the audio object, a panning coefficient for each of the audio objects in relation to each of a plurality of predefined channel coverage zones. Converts the audio signal into submixes in relation to the predefined channel coverage zones based on the calculated panning coefficients and the audio objects. Each of the submixes indicating a sum of components of the plurality of the audio objects in relation to one of the predefined channel coverage zones. Generating a submix gain by applying an audio processing to each of the submix and controls an object gain applied to each of the audio objects. The object gain being as a function of the panning coefficients for each of the audio objects and the submix gains in relation to each of the predefined channel coverage zones.

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