DIRECTION OF AUDIO ARRIVAL FROM AMBISONICS CHANNELS USING AZIMUTH AND ELEVATION SEGMENTS

    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.

    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
    5.
    发明公开

    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.

    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.

    MICROPHONE PATTERN BASED ON SELECTED IMAGE OF DUAL LENS IMAGE CAPTURE DEVICE

    公开(公告)号:US20210219049A1

    公开(公告)日:2021-07-15

    申请号:US17214477

    申请日:2021-03-26

    Applicant: GoPro, Inc.

    Abstract: An image capture device may include a sensor, a microphone array, and a processor. The microphone array may include a first microphone, a second microphone, a third microphone, or any combination thereof. The first microphone may be configured to face a first direction. The second microphone may be configured to face a second direction. The second direction may be diametrically opposed to the first direction. The third microphone may be configured to face a third direction. The third direction may be substantially perpendicular to the first direction, the second direction, or both. The processor may be configured to determine a microphone capture pattern. The microphone capture pattern may be determined based on data obtained from the sensor. The sensor data may include image data, audio data, image capture device orientation data, location data, accelerometer data, or any combination thereof.

    Microphone pattern based on selected image of dual lens image capture device

    公开(公告)号:US11611824B2

    公开(公告)日:2023-03-21

    申请号:US17214477

    申请日:2021-03-26

    Applicant: GoPro, Inc.

    Abstract: An image capture device may include a sensor, a microphone array, and a processor. The microphone array may include a first microphone, a second microphone, a third microphone, or any combination thereof. The first microphone may be configured to face a first direction. The second microphone may be configured to face a second direction. The second direction may be diametrically opposed to the first direction. The third microphone may be configured to face a third direction. The third direction may be substantially perpendicular to the first direction, the second direction, or both. The processor may be configured to determine a microphone capture pattern. The microphone capture pattern may be determined based on data obtained from the sensor. The sensor data may include image data, audio data, image capture device orientation data, location data, accelerometer data, or any combination thereof.

    Method and apparatus for wind noise detection and beam pattern processing

    公开(公告)号:US11356786B2

    公开(公告)日:2022-06-07

    申请号:US17002131

    申请日:2020-08-25

    Applicant: GoPro, Inc.

    Abstract: An image capture device includes a sensor, a microphone array, and a processor. The microphone array may include a first microphone, a second microphone, a third microphone, or any combination thereof. The first microphone may be configured to face a first direction. The second microphone may be configured to face a second direction. The second direction may be diametrically opposed to the first direction. The third microphone may be configured to face a third direction. The third direction may be substantially perpendicular to the first direction, the second direction, or both. The processor may be configured to determine a microphone capture pattern and detect wind noise. The microphone capture pattern may be determined based on data obtained from the sensor. The sensor data may include image data, audio data, image capture device orientation data, location data, accelerometer data, or any combination thereof.

    METHOD AND APPARATUS FOR OPTIMIZING DIFFERENTIAL MICROPHONE ARRAY BEAMFORMING

    公开(公告)号:US20220060821A1

    公开(公告)日:2022-02-24

    申请号:US16999626

    申请日:2020-08-21

    Applicant: GoPro, Inc.

    Abstract: An electronic device may use differential microphone arrays for beamforming. The electronic device may include a first microphone for obtaining a first microphone signal and a second microphone for obtaining a second microphone signal. The electronic device may include a processor to process the microphone signals to obtain frequency bins. The processor may apply delay coefficients to the frequency bins of the microphone signals to obtain a delayed signal. The delay coefficients may be based on a phase difference between the microphone signals. The phase difference may be a function of frequency. The processor may be configured to combine the delayed signal with the first microphone signal or the second microphone signal to obtain a beamformed signal. The electronic device may include a memory to store the beamformed signal.

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