Sensor-based placement of sound in video recording

1. A device comprising:

a memory to store video recorded with a camera, audio recorded with a microphone, information indicative of a focus of an operator of the camera, and motion information related to motion of the microphone while recording the audio with the microphone;

wherein the video, the audio, and the information indicative of the focus of the operator were recorded simultaneously during a time period, and wherein the microphone is configured to move relative to the camera; and

a processor to

receive a selection from a user of an object in the video, wherein the object is collocated with the microphone that recorded the audio,

track the object in the video by using the motion information related to the motion of the microphone,

determine a location of the microphone relative to the camera over the time period based on the information indicative of the focus of the operator of the camera and based on the tracking of the object, and

process the recorded audio to generate additional or modified audio channels based on the location of the microphone.

2. The device of claim 1 , wherein the processor is further configured to:

generate surround-sound audio channels; or

generate head-related transfer function audio channels.

3. The device of claim 1 ,

wherein the memory is further configured to store motion information related to motion of the camera while the camera receives video, and

wherein the processor is further configured to track the object in the video using the motion information related to the camera.

4. A system comprising:

a camera and a microphone, wherein the microphone is configured to move relative to the camera;

a memory to store

video recorded with the camera, audio recorded with the microphone, information indicative of a focus of an operator of the camera, and motion information related to motion of the microphone while recording the audio with the microphone, wherein the video, audio, and information indicative of the focus of the operator were recorded simultaneously during a time period; and

a processor to

receive a selection from a user of an object in the video, wherein the object is collocated with the microphone that recorded the audio,

track the object in the video by using the motion information related to the motion of the microphone,

determine a location of the microphone relative to the camera over the time period based on the information indicative of the focus of the operator and based on the tracking of the object; and

process the recorded audio to generate additional or modified audio channels based on the location of the microphone relative to the camera.

5. The system device of claim 4 ,

wherein the memory is further configured to store

first absolute location information indicative of an absolute location of the camera over the time period;

second absolute location information indicative of an absolute location of the microphone over the time period, wherein the location information includes the first absolute location information and the second absolute location information; and

wherein the processor is further configured to determine the location of the microphone relative to the camera over the time period based on the first absolute location information and the second absolute location information.

6. The system of claim 5 , wherein the first absolute location information or the second absolute location information includes global position system (GPS) information.

7. The system of claim 4 ,

wherein the memory is further configured to store direction information indicative of a direction of the camera, wherein the processor is further configured to determine the location of the microphone relative to the camera based on the direction information.

8. The system of claim 4 ,

wherein the camera is a first camera,

wherein the memory is configured to store a recording, captured by a second camera, of a beacon light over the time period, wherein the location information includes the recording of the beacon light, wherein the beacon light is collocated with the microphone; and

wherein the processor is configured to determine the location of the microphone relative to the camera over the time period based on the recording of the beacon light over the time period.

9. The system of claim 8 , wherein the beacon light includes infra-red (IR) light and the second camera is an IR camera.

10. The system of claim 8 , wherein the processor is further configured to:

generate surround-sound audio channels;

generate stereo audio channels; or

generate head-related transfer function audio channels.

11. The system of claim 8 ,

wherein the memory is further configured to store motion information related to motion of the camera over the time period, and

wherein the processor is configured to determine the location based on the motion information related to the motion of the camera.

12. A computer-implemented method comprising:

receiving video recorded with a camera, audio recorded with a microphone, information indicative of a focus of an operator of the camera, and motion information related to motion of the microphone while recording the audio with the microphone,

wherein the video, audio, and information indicative of the operator were recorded simultaneously during a time period, and wherein the microphone is configured to move relative to the camera;

receiving a selection from a user of an object in the video, wherein the object is collocated with the microphone that recorded the audio;

tracking the object in the video by using the motion information related to the motion of the microphone;

determining a location of the microphone relative to the camera over the time period based on the information indicative of the focus of the operator of the camera and based on the tracking of the object; and

processing the recorded audio to generate additional or modified audio channels based on the location, of the microphone, determined based on the information indicative of the focus of the operator of the camera and based on the tracking of the object.

13. The computer-implemented method of claim 12 , wherein the received video is a first received video and the camera is a first camera, wherein receiving the information indicative of the focus of the operator includes receiving a second video of the operator from a second camera recorded simultaneously with the first video, wherein the second camera is in a known location relative to the first camera, the method further comprising:

determining the focus of the operator of the camera based on the second video of the operator from the second camera.

14. The computer-implemented method of claim 13 , wherein the first camera and the second camera face opposite directions.

15. The computer-implemented method of claim 12 , further comprising:

receiving first direction information indicative of the direction of a headset worn by the operator, wherein determining the location of the microphone relative to the camera includes determining the location of the microphone relative to the camera based on the first direction information.

16. The computer-implemented method of claim 15 , further comprising:

receiving second direction information indicative of the direction of the camera, wherein determining the location of the microphone relative to the camera includes determining the position of the microphone relative to the camera based on the second direction information.

17. The computer-implemented method of claim 15 , further comprising:

generating surround-sound audio channels;

generating stereo audio channels; or

generating head-related transfer function audio channels.