Dual-microphone camera

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.

主权项

1. A method for activating at least one of a plurality of microphones configured within a camera, comprising;
receiving motion data from a camera accelerometer, the motion data representative the camera's movement; determining a motion vector for the camera based on the received motion data, the motion vector based on a direction in which the camera is moving; selecting less than all of the plurality of microphones based on the motion vector, wherein each selected microphone is located on a camera surface facing the direction of the motion vector; and capturing audio data using only the selected microphones and not the unselected microphones in the plurality of microphones such that the unselected microphones do not produce audio signals.