Selection of microphones in a camera
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.
1. A camera, comprising:
surfaces comprising:
a first surface; and
a second surface located on a different side of the camera than the first surface;
microphones comprising:
a first microphone located on the first surface; and
a second microphone located on the second surface; and
a sensor controller configured to:
receive audio inputs from the first microphone and the second microphone simultaneously;
select the first microphone or the second microphone based on the audio inputs so that one of the first and second microphones is a selected microphone, wherein the selected microphone receives the audio input having the lowest decibel level; and
record audio data from only the selected microphone.
2. The camera of claim 1 , wherein the sensor controller is configured to:
switch recording the audio data between the first microphone and the second microphone based on a change in wind noise, wind direction, or camera orientation.
3. The camera of claim 1 , wherein the sensor controller is configured to continue to record the audio data using the selected microphone for:
a pre-determined period of time;
until a user selects an input associated with stopping a recording of audio/video; or
until an above-threshold change in motion of the camera is detected.
4. The camera of claim 1 , wherein the first surface is a bottom surface of the camera.
5. The camera of claim 4 , wherein the second surface is a front surface of the camera.
6. The camera of claim 4 , wherein the first surface and the second surface are perpendicular.
7. The camera of claim 1 , wherein the camera includes a lens that is located on a first surface, the first surface being a front surface of the camera and the second surface being a bottom surface of the camera.
8. The camera of claim 1 , wherein the sensor controller is configured to:
switch recording the audio data between the first microphone and the second microphone based on a change in sound intensity.
9. A method comprising:
monitoring microphones of a camera with a sensor controller, the microphones comprising:
a first microphone located on a first surface of the camera; and
a second microphone located on a second surface of the camera,
wherein the first surface and the second surface are on different sides of the camera;
receiving audio inputs from the first microphone and the second microphone simultaneously;
determining levels of background noise in the audio inputs received by the first microphone and the second microphone;
comparing the levels of background noise to decibel levels input into the first microphone and the second microphone;
selecting the audio input with the lowest decibel level from the first microphone or the second microphone; and
capturing audio data using the audio input with the lowest decibel level from the first microphone or the second microphone.
10. The method of claim 9 , comprising:
changing selection of the audio input between the first microphone and the second microphone based upon a change in background noise, wherein the background noise includes wind noise.
11. The method of claim 9 , wherein the first microphone captures audio data and the second microphone is free of capturing audio data.
12. The method of claim 9 , comprising:
associating the levels of background noise with a-frequency ranges; and
associating the frequency ranges with wind noise, interference, or vibrational noise.
13. The method of claim 9 , wherein the first surface of the camera is perpendicular to the second surface of the camera.
14. The method of claim 12 , comprising:
changing selection of the audio input between the first microphone and the second microphone based upon a change in the wind noise, interference, or vibrational noise.
15. A method comprising:
monitoring audio inputs of microphones of a camera;
determining a level of background noise for each of the audio inputs;
correlating the level of background noise for each of the audio inputs to a frequency range;
selecting one of the microphones having audio inputs with a lowest sound intensity within a predetermined frequency range; and
capturing audio data from the microphone selected.
16. The method of claim 15 , wherein the predetermined frequency range is a frequency range that includes wind noise, interference, or vibrational noise.
17. The method of claim 16 , comprising:
changing between the microphones based upon a change in the wind noise, interference, or vibrational noise.
18. The method of claim 15 , wherein the microphones are a first microphone located on a first surface of the camera and a second microphone located on a second surface of the camera, and wherein the first surface and the second surface are on different sides of the camera.
19. The method of claim 18 , wherein the first surface of the camera is perpendicular to the second surface of the camera.
20. The method of claim 15 , comprising:
switching the microphone capturing audio data due to a change in the sound intensity.