Re: How to tell if a video has been sped up.

If the pitch is on (it seems to be), then you would certainly notice
dropped frames (missing notes too). Also, the poor focus is shifting
around in a way that dropped frames would be visibily noticeable. It
doesn't look sped up to me.

Geoff

zooplibob@xxxxxxxxx wrote:
Hi guys. I saw this video on youtube:

http://www.youtube.com/watch?v=FTPs6VF_zQQ#T18KasN3_OY

I believe it has been sped up digitally by dropping frames every so
often. The sound and video line up, and the pitch hasnt been altered
either (I checked on a piano). However I can just tell it looks sped
up.

Are there any things you can detect that prove my point? Theres a
camera flash at 1:12 that seems too quick. Also the vcr stuff at the
bottom is there. Can I tell from taht if its been sped up? How about
the way the camera is moving?

Any evidence you can come up wiht would be helpful. Things like gravity
are always constant, so maybe when somethign falls or something like
his coat tail you can tell it falls too fast? I dont know

Thanks
Jeff

.