What is the frame/fork made of? What kind of "bump"? I had a carbon bike that made that kind of sound after a mild crash, and it ended up being a crack that caused a much less mild crash weeks later, but it's a little hard to hear from the video. A normal road bump shouldn't cause anything that serious though.
Have you tightened your handlebars? Could be coming from stem to steertube connection. I would have someone push on it for you, get your ears down there, and try to isolate where specifically it's coming from on the bicycle.