Invention Grant
- Patent Title: Audio signal level estimation in cameras
- Patent Title (中): 相机中的音频信号电平估计
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Application No.: US15140260Application Date: 2016-04-27
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Publication No.: US09571807B2Publication Date: 2017-02-14
- Inventor: Paul Beckmann , Erich Tisch , Zhinian Jing
- Applicant: GoPro, Inc.
- Applicant Address: US CA San Mateo
- Assignee: GoPro, Inc.
- Current Assignee: GoPro, Inc.
- Current Assignee Address: US CA San Mateo
- Agency: Fenwick & West LLP
- Main IPC: H04N5/228
- IPC: H04N5/228 ; H04N9/802 ; H04N1/21 ; G10L21/0216 ; G10L21/0264 ; H04N9/79 ; H04R3/00

Abstract:
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.
Public/Granted literature
- US20160241832A1 AUDIO SIGNAL LEVEL ESTIMATION IN CAMERAS Public/Granted day:2016-08-18
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