Re: [Avid-L2] Rookie TC question

Good visual explanation there Philip. Only one slight modification
which can be easily explained with math.

I am terrible at math, so this won't be too hard.

So, if you have 30 frames per second for 60 seconds, you get 1800
frames.
If you have 29.97 frames per second for 60 seconds, you get 1798.2
frames, which is NOT QUITE 2 "dropped" frames per minute.
To make up for this, SMPTE DOESN'T drop the two frames from every 10th
minute. That's because of the .2 extra frames per minute, which, over
the course of 10 minutes becomes (.2 x 10= 2) the two frames that you
WOULD have dropped, but now you don't.

So your illustration should read, "2 dropped frames per minute with
the exception of every tenth minute, where no frames are dropped."

Because it just isn't complicated enough as it is!

In the cooperative and collaborative spirit of the internet,
Steve Hullfish

On Oct 21, 2009, at 10:57 AM, Philip Hodgetts wrote:

>
> On Oct 21, 2009, at 7:55 AM, Steve Hullfish wrote:
>
> > Well, the frames are dropped in the NAMING of the frames, as you
> know,
> > and not in the actual frames themselves. My analogy is that drop
> frame
> > time code is like a skyscraper hotel where there's never a 13th
> floor.
> > Of course floor 14 is ACTUALLY the 13th floor, but they named it 14.
> > That obviously doesn't mean that there's a one floor hole in the
> > skyscraper, or that just because you have a penthouse on the 21st
> > floor, you're not REALLY only on the 20th floor.
>
> And to go with Steve's excellent explanation, an illustration:
>
> http://www.philiphodgetts.com/2009/10/20/what-is-drop-frame-timecode/
>
> Philip Hodgetts
> President, Intelligent Assistance
> AssistedEditing.com Fast First Cuts, Metadata Worfklows
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>
> Personal Blog http://philiphodgetts.com
> Cell 818 335 3916
>
>
>

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