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    SHARING PHYSICAL WRITING SURFACES IN VIDEOCONFERENCING
    3.
    发明申请
    SHARING PHYSICAL WRITING SURFACES IN VIDEOCONFERENCING 审中-公开

    公开(公告)号：WO2020150267A1

    公开(公告)日：2020-07-23

    申请号：PCT/US2020/013548

    申请日：2020-01-14

    Applicant: DOLBY LABORATORIES LICENSING CORPORATION

    Inventor： PORT, Timothy Alan ,  CARTWRIGHT, Richard J.

    IPC: H04N7/15 ,  H04N7/14 ,  H04M3/56

    Abstract: An apparatus and method relating to use of a physical writing surface (132) during a videoconference or presentation. Snapshots of a whiteboard (132) are identified by applying a difference measure to the video data (e.g., as a way of comparing frames at different times). Audio captured by a microphone may be processed to generate textual data, wherein a portion of the textual data is associated with each snapshot. The writing surface may be identified (enrolled) using gestures. Image processing techniques may be used to transform views of a writing surface.

    MULTICHANNEL AUDIO ENHANCEMENT, DECODING, AND RENDERING IN RESPONSE TO FEEDBACK
    5.
    发明申请
    MULTICHANNEL AUDIO ENHANCEMENT, DECODING, AND RENDERING IN RESPONSE TO FEEDBACK 审中-公开

    公开(公告)号：WO2019246457A1

    公开(公告)日：2019-12-26

    申请号：PCT/US2019/038333

    申请日：2019-06-20

    Applicant: DOLBY LABORATORIES LICENSING CORPORATION

    Inventor： PORT, Timothy Alan ,  BRADY, Sean Alexander

    IPC: H03G9/00 ,  H03G9/02 ,  H04R3/04 ,  H03G5/16 ,  H04R3/00 ,  H04S7/00

    Abstract: In some embodiments, a method for performing at least one of enhancement, decoding, or rendering of a multichannel audio signal in response to compression feedback or feedback from a smart amplifier. For example, the compression feedback may be indicative of amount of compression applied to each of multiple frequency bands, of the audio signal or an enhanced audio signal generated in response thereto. The enhancement (e.g., bass enhancement) may include dynamic routing of audio content of the input audio signal between channels of an enhanced audio signal generated in response thereto. The enhancement and compression may be performed on a per speaker class basis. Other aspects are systems (e.g., programmed processors) and devices (e.g., devices having physically-limited bass reproduction capabilities, such as, for example, a notebook or laptop computer, tablet, soundbar, mobile phone, or other device with small speakers) configured to perform any embodiment of the method.

    RENDERING BASED ON LOUDSPEAKER ORIENTATION
    6.
    发明申请
    RENDERING BASED ON LOUDSPEAKER ORIENTATION 审中-公开

    公开(公告)号：WO2023086303A1

    公开(公告)日：2023-05-19

    申请号：PCT/US2022/049170

    申请日：2022-11-07

    Applicant: DOLBY LABORATORIES LICENSING CORPORATION

    Inventor： KAWCZINSKI, Kimberly Jean ,  SEEFELDT, Alan Jeffrey ,  PORT, Timothy Alan

    IPC: H04R5/04 ,  H04S7/00

    Abstract: An audio processing method may involve receiving audio signals and associated spatial data, listener position data, loudspeaker position data and loudspeaker orientation data, and rendering the audio data for reproduction, based, at least in part, on the spatial data, the listener position data, the loudspeaker position data and the loudspeaker orientation data, to produce rendered audio signals. The rendering may involve applying a loudspeaker orientation factor that tends to reduce a relative activation of a loudspeaker based, at least in part, on an increased loudspeaker orientation angle. In some examples, the rendering may involve modifying an effect of the loudspeaker orientation factor based, at least in part, on a loudspeaker importance metric. The loudspeaker importance metric may correspond to a loudspeaker's importance for rendering an audio signal at the audio signal's intended perceived spatial position.

    NON-INTRUSIVE TRANSDUCER HEALTH DETECTION
    9.
    发明申请
    NON-INTRUSIVE TRANSDUCER HEALTH DETECTION 审中-公开

    公开(公告)号：WO2021258037A1

    公开(公告)日：2021-12-23

    申请号：PCT/US2021/038187

    申请日：2021-06-21

    Applicant: DOLBY LABORATORIES LICENSING CORPORATION

    Inventor： MCKEE, Joseph ,  PORT, Timothy Alan ,  HOLMBERG, Paul

    IPC: H04R29/00 ,  H04R29/001 ,  H04R29/004

    Abstract: Embodiments are disclosed for non-intrusive transducer health detection in an audio system. In an embodiment, a method performed by the audio system comprises outputting one or more encoded inaudible acoustic signals into an acoustic transmission medium using a first transducer. The one or more encoded inaudible acoustic signals are received from the acoustic transmission medium using a second transducer of the audio system. The received one or more encoded inaudible acoustic signals are used to identify failure or degradation of the first or second transducer.

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