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Subject: Re: [AE] PAL comp in NTSC world
From: Chris Zwar <chris@chriszwar.com>
In-Reply-To: <list-5315932@media-motion.tv>
Date: Fri, 13 Dec 2013 21:36:27 +1100
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Message-Id: <AE0D1492-4C5A-4C6D-8EF6-4007242BBDA6@chriszwar.com>
References: <list-5315932@media-motion.tv>
To: "After Effects Mail List" <AE-List@media-motion.tv>

Sorry to sound like a pedant but that's not PAL or NTSC.  Those terms =
refer to the old analogue system.  Incidentally, analogue TV has just =
stopped broadcasting here in Australia so I suppose it's no longer =
correct to refer to us as a PAL country.  Using the digital terminology, =
PAL is (was) 720x576, 50i and NTSC is 720x486,59.94i.

You have HD comps.  There is no PAL or NTSC with high def, just =
different frame sizes, frames rates, and either progressive or =
interlaced.

You've said that you have a 1920x1080 "PAL" comp - does that mean it's =
25p or 50i?  And you want it to be NTSC - again, you actually have a few =
frame rates to choose from - 29.97 and 30 progressive, and 59.94 or 60 =
for interlaced.

The easiest way to do it is just import the clip into After Effects and =
ensure it is interpreted correctly (frame rate and fields).  Then drop =
it into a new composition that has the new settings you want (e.g. =
1920x1080, 29.97).  After Effects will take care of the conversion and =
you just have to render it out.

This probably won't give you the best results though.  The next step is =
to turn on frame blending.  Try both settings and see if the =
pixel-motion setting works without artefacts.  If that doesn't work too =
well then split the clip at each edit point, and use the time warp =
effect - adjusting the parameters for each clip.  And finally, if that =
doesn't work too well then try a 3rd party product like twixtor.  Don't =
expect Twixtor to do a better job that After Effects without you doing =
some manual adjusting for each shot though.

You might have to split the clip at each edit point and use a different =
technique for each shot.  If you can get pixel blending to work then =
great, but often there's a rogue scene that won't work with it.  Try it =
and see...

On 13/12/2013, at 8:52 AM, mpo@michaeloreilly.com wrote:

> I have not paid attention to threads about PAL coz I never work with =
it
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> But I have a great PAL 1920x1080 comp in my possession which I cannot =
rework.
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> What's the best way to go about outputting an NTSC version of it ? =
(drop
> it in an NTSC 1080p comp ?)
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> Answer is probably simple, but my brain is fried and I am under =
deadline.
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> thanks
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> Mike O
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> +---End of message---+
> To unsubscribe send any message to <ae-list-off@media-motion.tv>
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