CPC H04N 23/811 (2023.01) [H04N 5/9265 (2013.01)] | 5 Claims |
1. A method for filtering noise of lens operation applicable to a controller and a video recorder comprising:
establishing, by the controller, a connection between the controller and the video recorder;
receiving, by the video recorder, a recording instruction configured to control the video recorder to perform a video recording and control a microphone of the video recorder to generate an audio recording signal;
controlling, by the controller, the video recorder to enter an audio monitor mode after the video recorder performs the video recording;
in the audio monitor mode, determining, by the video recorder, whether the video recorder receives a lens operation instruction, and sending, by the video recorder, a notification signal when the video recorder receives the lens operation instruction, wherein the lens operation instruction is configured to control a lens of the video recorder to perform an operation;
after receiving the notification signal by the controller, reading, by the controller, an inverted noise signal associated with the operation and sending, by the controller, a permission signal to the video recorder; and
after receiving the permission signal by the video recorder, performing, by the video recorder, the operation according to the lens operation instruction and receiving, by the controller, the audio recording signal.
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