An unmanned aerial vehicle (UAV) includes an audio source collecting microphone detecting a target audio signal, background noise-producing components producing background noise different from the target audio signal, background microphones collecting the background noise, and noise emitters each configured to reduce the background noise by emitting an audio signal having a reverse phase of the collected background noise collected by the corresponding background microphone. The background microphones further collect reduced background noise. The UAV further includes a processor receiving signals which comprise the target audio signal and the reduced background noise, and generating a processed signal based on the collected reduced background noise to reduce interference by the background noise to the target audio signal.
UNMANNED AERIAL VEHICLE (UAV) FOR COLLECTING AUDIO DATA
2021-06-03
Patent
Electronic Resource
English
AN UNMANNED AERIAL VEHICLE (UAV) FOR COLLECTING AUDIO DATA
European Patent Office | 2016
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