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1. 发明申请

WO2017003958A1 AUTOMATIC MICROPHONE SELECTION IN A SPORTS CAMERA 审中-公开
标题翻译：自动麦克风选择在运动相机
公开(公告)号：WO2017003958A1
公开(公告)日：2017-01-05
申请号：PCT/US2016/039679
申请日：2016-06-27
申请人： GOPRO, INC.
发明人： JING, Zhinian , TISCH, Erich , LI, Ke , BECKMANN, Paul , ROSENBAUM, Joyce , HANSSON, Magnus , COONS, Evan, L. , WROBLEWSKI, Alexander
IPC分类号： H04R5/027 , H04R29/00
CPC分类号： H04R5/027 , G03B17/08 , G03B31/00 , H04R29/004 , H04R2499/11
摘要： 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.
摘要翻译：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。增强麦克风包括排水增强功能，以使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。

2. 发明申请

WO2015175226A1 DUAL-MICROPHONE CAMERA 审中-公开
标题翻译：双麦克风相机
公开(公告)号：WO2015175226A1
公开(公告)日：2015-11-19
申请号：PCT/US2015/028347
申请日：2015-04-29
申请人： GOPRO, INC.
发明人： TISCH, Erich , BARBIER, Fabrice , CAMPBELL, Scott, Patrick
IPC分类号： G03B17/02
CPC分类号： H04N5/23258 , G06T7/20 , H04N1/2112 , H04N5/23254 , H04N2101/00 , H04N2201/3264 , H04N2201/3277 , H04R3/005 , H04R2410/07 , H04R2499/11
摘要： 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.
摘要翻译：相机配置有多个麦克风，以减少相机收集的音频数据中的风噪声。摄像机接收运动数据，其可以包括指示相机的加速度的数据，由相机接收的多个视频帧，或者与在相机上配置的一个或多个麦克风相关联的背景噪声水平。相机从运动数据确定运动矢量。运动矢量平行于摄像机的运动方向。相机在运动矢量的方向上选择一个或多个麦克风的子集。通过使用一个或多个所选择的麦克风记录音频数据，照相机降低音频数据中的风噪声。

3. 发明申请

WO2020041164A1 AUDIO ENHANCEMENTS IN MOTOR-DRIVEN DEVICES 审中-公开
公开(公告)号：WO2020041164A1
公开(公告)日：2020-02-27
申请号：PCT/US2019/047000
申请日：2019-08-19
申请人： GOPRO, INC.
发明人： SHUKLA, Himay , TISCH, Erich , GORNY, Joyce , PENROD, Eric , CROW, Kielan
IPC分类号： H04R1/02 , H04R1/08 , H04N5/232
摘要： A handheld image stabilization device may each include a housing, a motor assembly, a microphone, a dampener, or any combination thereof. The housing may include a first port. The motor assembly may be attached to the housing. The motor assembly may include a plurality of motors. Each motor may include a coil assembly, a ring surrounding the coil assembly, magnets adhered to the ring, and a shaft configured to generate a non-overlapping natural resonance with an operating frequency of the motor. The microphone may be configured to detect audio waves via the first port, vibration noise of the motors via the housing, or both. The audio waves may include acoustic noise from the motors. The dampener may be coupled to the housing. The dampener may be configured to reduce the acoustic noise from the motors, the vibration noise from the motors, or both.

4. 发明申请

WO2018052655A1 GENERATING AN AUDIO SIGNAL FROM MULTIPLE MICROPHONES BASED ON UNCORRELATED NOISE DETECTION 审中-公开
标题翻译：基于非相关噪声检测从多个麦克风中产生音频信号
公开(公告)号：WO2018052655A1
公开(公告)日：2018-03-22
申请号：PCT/US2017/047638
申请日：2017-08-18
申请人： GOPRO, INC.
发明人： TISCH, Erich , ROSENBAUM, Joyce , HANSSON, Magnus , LI, Ke , WURTZ, David
IPC分类号： H04R1/08 , H04R3/00 , H04R29/00
摘要： 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 uncorrected 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.
摘要翻译：音频捕获设备根据检测到的条件在多个麦克风之间进行选择以生成输出音频信号。当检测到存在风噪声或其他未校正的噪声时，音频捕获设备针对多个不同频率子带中的每一个选择具有最低噪声的音频信号并且组合所选择的子频带信号以生成输出音频信号。当未检测到风噪声或其他不相关的噪声时，音频捕获设备确定多个麦克风中的每一个是湿的还是干的，并根据麦克风各自的条件从麦克风中选择一个或多个音频信号。

5. 发明申请

WO2016081039A1 AUDIO SIGNAL LEVEL ESTIMATION IN CAMERAS 审中-公开
标题翻译：摄像机中的音频信号电平估计
公开(公告)号：WO2016081039A1
公开(公告)日：2016-05-26
申请号：PCT/US2015/047269
申请日：2015-08-27
申请人： GOPRO, INC.
发明人： BECKMANN, Paul , TISCH, Erich , JING, Zhinian
IPC分类号： G10L21/0208
CPC分类号： H04N9/802 , G10L21/0216 , G10L21/0264 , G10L2021/02166 , H04N1/2125 , H04N9/7908 , H04R3/005 , H04R2499/11
摘要： A camera system includes a first microphone, a second microphone, and a microphone controller. The first microphone and the second microphone are configured to capture audio over a time interval to produce a first captured audio signal and a second captured audio signal, respectively. The second captured audio signal is dampened relative to the first captured audio signal by a dampening factor. The microphone controller is configured to store the first captured audio signal in response to a determination that the first captured audio signal does not clip. In response to a determination that the first captured audio signal clips, the microphone controller is configured to identify a gain between the first captured audio signal and the second captured audio signal representative of the dampening factor, amplify the second captured audio signal based on the identified gain, and store the amplified second captured audio signal.
摘要翻译：相机系统包括第一麦克风，第二麦克风和麦克风控制器。第一麦克风和第二麦克风被配置为在一段时间间隔内捕获音频以分别产生第一捕获音频信号和第二捕获音频信号。第二捕获的音频信号相对于第一捕获的音频信号被阻尼因子衰减。麦克风控制器被配置为响应于确定第一捕获的音频信号不被剪切而存储第一捕获的音频信号。响应于确定第一捕获的音频信号剪辑，麦克风控制器被配置为识别代表衰减因子的第一捕获音频信号和第二捕获音频信号之间的增益，基于所识别的音频信号放大第二捕获音频信号增益并存储放大的第二捕获音频信号。

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