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The video goes into a bit more detail and shows a couple of things that address your question. 1) A lot of the tests were done with a camera that costs thousan
by randomdrake 12y ago
The video goes into a bit more detail and shows a couple of things that address your question.
1) A lot of the tests were done with a camera that costs thousands of dollars. You can see images of the camera used in one of the experiments.
2) They were able to use consumer-grade cameras to also capture sound. Even frequencies up to 5x higher than the actual 60 FPS of the captured video.
- nl 12y agoI wonder how well a GoPro would do? They can do 120fps at 720p or 240fps at WVGA.
- ygra 12y agoNot very well, at least for the initial approach with a high-speed camera. With 240 fps you're limited to 240 samples per second. If I'm not terribly mistaken that would limit you to frequencies up to 120 Hz in the reconstruction. But the GoPro has a rolling shutter as well, so their second approach would be applicable. However, that effectively relies on rows per second and while you have a higher frame rate you have a lower resolution. In the end they could cancel each other out.