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公开(公告)号：US11343413B2
公开(公告)日：2022-05-24
申请号：US17012619
申请日：2020-09-04
Applicant: GoPro, Inc.
Inventor： Zhinian Jing , Ke Li , Erich Tisch , Joyce Rosenbaum , Magnus Hansson
Abstract: A camera includes a first microphone, a second microphone, and a processor. The processor determines a correlation metric between portions of audio signals obtained from the first and second microphones. The camera includes a memory to store the portions of the audio signals as portions of an output audio signal.
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公开(公告)号：US20220150621A1
公开(公告)日：2022-05-12
申请号：US17587064
申请日：2022-01-28
Applicant: GoPro, Inc.
Inventor： Erich Tisch , Timothy Dick , Eric Penrod
Abstract: An image capture device, having: a housing, a lens snout, a front microphone, a top microphone, and an audio processor. The housing has a top and front housing surface. The lens snout protrudes from the front housing surface. The front microphone mounted within or on the front housing surface and below the lens snout. The top microphone mounted within or on a top housing surface in a position biased toward the front housing surface. The audio processor comprises a memory that is configured to store instructions that when executed cause the audio processor to generate an output audio signal. The top microphone is located at a position to receive direct freestream air flow when the housing is positioned in a pitched forward orientation at a pitched forward angle relative to a vertical axis. The front microphone receives turbulent air flow from the lens snout when the housing is positioned in the pitched forward orientation.
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公开(公告)号：US11245982B2
公开(公告)日：2022-02-08
申请号：US16907849
申请日：2020-06-22
Applicant: GoPro, Inc.
Inventor： Erich Tisch , Timothy Dick , Eric Penrod
Abstract: An image capture device includes a housing having a lens snout protruding from a front housing surface. A front microphone is mounted below the lens snout. A top microphone is mounted under a top housing surface. The top microphone is positioned to receive direct freestream air flow at a first pitched forward angle. The front microphone is positioned to receive turbulent air flow at a second pitched forward angle. The second pitched forward angle is greater than or equal to the first pitched forward angle. An audio processor receives a first audio signal and a second audio signal from the top microphone and front microphone, respectively. The audio processor generates frequency sub-bands from the first and second audio signals. The audio processor selects the frequency sub-bands with the lowest noise metric and combines them to generate an output audio signal.
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公开(公告)号：US20210272546A1
公开(公告)日：2021-09-02
申请号：US17209092
申请日：2021-03-22
Applicant: GoPro, Inc.
Inventor： Erich Tisch , Fabrice Barbier , Magnus Hansson
IPC: G10K11/178 , H04R1/08 , H04R1/28 , H04N5/225
Abstract: A camera includes one or more microphone pairs. A first microphone (e.g., a main microphone) is ported to the outside of the camera and captures the desired external audio signal, but may also capture undesired vibrational noise. A second microphone has a similar structure to the first microphone, but is not ported to the outside of the camera. Instead, the second microphone is ported into an enclosed cavity (e.g., 1-2 cubic centimeters in volume). The second microphone may pick up the same vibration excitation and internal acoustic noise as the first microphone but very little of the desired external acoustic sounds around the camera. The unwanted noise can then be removed by subtracting the second audio signal from the second microphone from the main audio signal from the main microphone.
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公开(公告)号：US10771660B2
公开(公告)日：2020-09-08
申请号：US16440430
申请日：2019-06-13
Applicant: GoPro, Inc.
Inventor： Zhinian Jing , Ke Li , Erich Tisch , Joyce Rosenbaum , Magnus Hansson
Abstract: An audio capture system for a sports camera includes at least one “enhanced” microphone and at least one “reference” microphone. The enhanced microphone includes a drainage enhancement feature to enable water to drain from the microphone more quickly than the reference microphone. A microphone selection controller selects between the microphones based on a microphone selection algorithm to enable high quality in conditions where the sports camera transitions in and out of water during activities such as surfing, water skiing, swimming, or other wet environments.
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Patent Agency Ranking
公开(公告)号：US10522129B2
公开(公告)日：2019-12-31
申请号：US15726320
申请日：2017-10-05
Applicant: GoPro, Inc.
Inventor： Erich Tisch , Fabrice Barbier , Magnus Hansson
IPC: H04N5/225 , G10K11/178 , H04R1/08 , H04R1/28
Abstract: A camera includes one or more microphone pairs. A first microphone (e.g., a main microphone) is ported to the outside of the camera and captures the desired external audio signal, but may also capture undesired vibrational noise. A second microphone has a similar structure to the first microphone, but is not ported to the outside of the camera. Instead, the second microphone is ported into an enclosed cavity (e.g., 1-2 cubic centimeters in volume). The second microphone may pick up the same vibration excitation and internal acoustic noise as the first microphone but very little of the desired external acoustic sounds around the camera. The unwanted noise can then be removed by subtracting the second audio signal from the second microphone from the main audio signal from the main microphone.
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公开(公告)号：US20190096416A1
公开(公告)日：2019-03-28
申请号：US15934392
申请日：2018-03-23
Applicant: GoPro, Inc.
Inventor： Joyce Gorny , Erich Tisch , Per Magnus Fredrik Hansson
Abstract: The present disclosure relates to processing a plurality of audio signals. The method includes receiving the plurality of audio signals in the frequency domain and determining an overall attenuation multiplier based on the plurality of audio signals and an overall lookup table that relates decibel values to different overall attenuation multipliers. The method further includes determining an attenuation vector comprising a plurality of bin-specific attenuation multipliers, each bin-specific attenuation multiplier respectively corresponding to a different frequency bin of the plurality of frequency bins. The method further includes scaling each bin-specific attenuation value in the attenuation vector with the overall attenuation multiplier, and editing each of the audio signals based on the scaled bin-specific attenuation values in the attenuation vector.
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公开(公告)号：US20180124320A1
公开(公告)日：2018-05-03
申请号：US15784086
申请日：2017-10-14
Applicant: GoPro, Inc.
Inventor： Erich Tisch , Fabrice Barbier , Scott Patrick Campbell
IPC: H04N5/232 , H04N1/21 , H04R3/00 , H04N101/00
CPC classification number: H04N5/23258 , G06T7/20 , H04N1/2112 , H04N5/23254 , H04N2101/00 , H04N2201/3264 , H04N2201/3277 , H04R3/005 , H04R2410/07 , H04R2499/11
Abstract: A camera is configured with multiple microphones to reduce wind noise in audio data collected by the camera. The camera receives motion data, which may comprise data indicating acceleration of the camera, a plurality of video frames received by the camera, or a background level of noise associated with one or more microphones configured on the camera. The camera determines a motion vector from the motion data. The motion vector is parallel to the direction of motion of the camera. The camera selects a subset of one or more microphones in the direction of the motion vector. By recording audio data using the one or more selected microphones, the camera reduces wind noise in the audio data.
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39.发明授权公开(公告)号：US09807530B1
公开(公告)日：2017-10-31
申请号：US15396380
申请日：2016-12-30
Applicant: GoPro, Inc.
Inventor： Erich Tisch , Joyce Rosenbaum , Magnus Hansson , Ke Li , David Wurtz
CPC classification number: H04R29/005 , G06F3/044 , G06F3/165 , G06K9/4671 , H04R1/083 , H04R1/406 , H04R3/005 , H04R5/027 , H04R2410/01 , H04R2410/07 , H04R2430/03 , H04R2430/21 , H04R2499/11
Abstract: An audio capture device selects between multiple microphones to generate an output audio signal depending on detected conditions. When the presence of wind noise or other uncorrelated noise is detected, the audio capture device selects, for each of a plurality of different frequency sub-bands, an audio signal having the lowest noise and combines the selected frequency sub-bands signals to generate an output audio signal. When wind noise or other uncorrelated noise is not detected, the audio capture device determines whether each of a plurality of microphones are wet or dry and selects one or more audio signals from the microphones depending on their respective conditions.
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公开(公告)号：US20170006396A1
公开(公告)日：2017-01-05
申请号：US15083262
申请日：2016-03-28
Applicant: GoPro, Inc.
Inventor： Zhinian Jing , Erich Tisch , Ke Li , Paul Beckmann
CPC classification number: H04N5/2252 , G03B17/08 , H04R1/44 , H04R3/00 , H04R3/005 , H04R5/04 , H04R29/004 , H04R2410/05 , H04R2410/07 , H04R2499/11
Abstract: An audio capture system for a sports camera includes at least one “enhanced” microphone and at least one “reference” microphone. The enhanced microphone includes a drainage enhancement feature to enable water to drain from the microphone more quickly than the reference microphone. A microphone selection controller selects between the microphones based on a microphone selection algorithm to enable high quality in conditions where the sports camera transitions in and out of water during activities such as surfing, water skiing, swimming, or other wet environments.
Abstract translation: 用于运动照相机的音频捕获系统包括至少一个“增强”麦克风和至少一个“参考”麦克风。 增强型麦克风包括排水增强功能，使得水能够比参考麦克风更快地从麦克风中排出。 麦克风选择控制器基于麦克风选择算法在麦克风之间进行选择，以在诸如冲浪，滑水，游泳或其它湿润环境的活动期间在运动相机转入和移出水的条件下实现高质量。
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