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    DIRECTION OF AUDIO ARRIVAL FROM AMBISONICS CHANNELS USING AZIMUTH AND ELEVATION SEGMENTS
    1.
    发明申请
    DIRECTION OF AUDIO ARRIVAL FROM AMBISONICS CHANNELS USING AZIMUTH AND ELEVATION SEGMENTS 有权

    公开(公告)号：US20240406652A1

    公开(公告)日：2024-12-05

    申请号：US18204630

    申请日：2023-06-01

    Applicant: GoPro, Inc.

    Inventor： Hakim Mesiwala ,  Eric Steven Penrod ,  Erich Tisch ,  Mark Hardin ,  Timothy Dick ,  William Edward MacDonald

    IPC: H04S7/00 ,  H04R1/02 ,  H04R3/00 ,  H04R5/027 ,  H04S3/00

    Abstract: Devices and methods for determining a direction of audio arrival from Ambisonics channels using azimuth and elevation segments is described herein. A method includes generating multiple blocks of samples from Ambisonics signals for a time interval, determining an azimuth angle estimate and an elevation angle estimate for the time interval when a defined number of blocks in the multiple blocks of samples are valid, generating the azimuth angle estimate based on maximum number of azimuth angle estimates present in an azimuth segment amongst a defined number of azimuth segments, and generating the elevation angle estimates based on maximum number of elevation angle estimates present in an elevation segment amongst a defined number of elevation segments, where the direction of arrival of the Ambisonics signals is based on the azimuth angle estimate and the elevation angle estimate.

    MICROPHONE PLACEMENT FOR WIND PROCESSING
    7.
    发明公开
    MICROPHONE PLACEMENT FOR WIND PROCESSING 审中-公开

    公开(公告)号：US20240077787A1

    公开(公告)日：2024-03-07

    申请号：US17903098

    申请日：2022-09-06

    Applicant: GoPro, Inc.

    Inventor： Erich Tisch ,  Eric Steven Penrod ,  Timothy Dick ,  Mark Hardin

    IPC: G03B17/02 ,  G03B17/55 ,  H04N5/225

    CPC classification number: G03B17/02 ,  G03B17/55 ,  H04N5/2254 ,  G03B2217/002

    Abstract: Wind processing performance is improved by the placement of one or more microphones on a device. The device includes one or more microphones on the front surface, one or more microphones on the top surface, and one or more microphones on the rear surface. The rear surface is a heatsink, and the one or more microphones on the rear surface are located in recesses created by two or more fins of the heatsink. The device includes a processor that performs wind processing based on signals from the one or more microphones on the front surface, signals from the one or more microphones on the top surface, signals from the one or more microphones on the rear surface, or any combination thereof.

    Multi-microphone noise floor mitigation
    8.
    发明授权
    Multi-microphone noise floor mitigation 有权

    公开(公告)号：US12167211B2

    公开(公告)日：2024-12-10

    申请号：US17940805

    申请日：2022-09-08

    Applicant: GoPro, Inc.

    Inventor： Erich Tisch ,  Eric Steven Penrod ,  Timothy Dick ,  Mark Hardin ,  Hakim Mesiwala

    IPC: H04R3/00 ,  H04R1/02 ,  H04R1/40 ,  H04R3/04

    Abstract: An image capture device reduces noise floor using multiple microphones. The image capture device includes a processor that obtains a front microphone signal from a front microphone, the front microphone signal having a noisy noise floor portion, obtains a rear microphone signal from a rear microphone, sets a splice point based on mitigation of the noisy noise floor portion relative to a speech frequency range, and combines a substantially clean noise floor portion of the rear microphone signal at or below the splice point with a remaining portion of the front microphone signal above the splice point to generate a microphone signal.

    Microphone placement for wind processing
    9.
    发明授权
    Microphone placement for wind processing 有权

    公开(公告)号：US12153331B2

    公开(公告)日：2024-11-26

    申请号：US17903098

    申请日：2022-09-06

    Applicant: GoPro, Inc.

    Inventor： Erich Tisch ,  Eric Steven Penrod ,  Timothy Dick ,  Mark Hardin

    IPC: G03B17/02 ,  G03B17/55 ,  H04N23/55

    Abstract: Wind processing performance is improved by the placement of one or more microphones on a device. The device includes one or more microphones on the front surface, one or more microphones on the top surface, and one or more microphones on the rear surface. The rear surface is a heatsink, and the one or more microphones on the rear surface are located in recesses created by two or more fins of the heatsink. The device includes a processor that performs wind processing based on signals from the one or more microphones on the front surface, signals from the one or more microphones on the top surface, signals from the one or more microphones on the rear surface, or any combination thereof.

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