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Old May 12th, 2005, 08:49 PM   #1
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50i to 24p Conversion Help

I've been search through the forums but can't find an answer, so please give me a quick hand ;)

I'm shooting a documentary with a Sony PDX-10 PAL this summer, which shoots at 50i. I'm looking at possibly renting a DVX100A as well, and am looking at methods to convert 50i to 24p. I understand that DVFilm maker will convert 50i to 25p, and a ~3% slowdown is then require for 25p to 24p. Is there any software used specifically to do the slowdown, or should just any NLE do it?

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Ari
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Old May 12th, 2005, 08:56 PM   #2
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i know fcp can do the slow down. just click on the clip, hit apple-j (for us mac users) and then type in 97% in the window that pops up. should be all thats necissary.
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Old May 12th, 2005, 09:54 PM   #3
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I'm not an apple user unfortunately :( Any PC solutions?
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Old May 12th, 2005, 10:26 PM   #4
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Old May 13th, 2005, 02:09 PM   #5
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Ari,

Everything I read, on this forum and elsewhere says just convert to 25p, and use that for PAL DVD or broadcast. You only need to go to 24p is you are doing a filmout, in which case the filmout lab will want your 25p footage, and will slow it down for you.

If you want to do it yourself, I believe After Effects will allow you to interpret the 25p footage as 24p, adjust the audio speed, and output 24p.

Josh
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Old May 14th, 2005, 07:04 AM   #6
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Joshua is correct.

You do not need any software to "do the slowdown". You simply interpret the footage as 24p, which inherently makes it run around 4% slower on screen. This difference is not noticable. The audio is what needs processing to adjust for the change in pitch as it is played back 4% slower to match - I use SoundForge, but any decent wave editor will do you.
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Old May 16th, 2005, 05:42 PM   #7
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DVFilm's Atlantis is probably the best choice: http://www.dvfilm.com/atlantis/index.htm

Canopus Procoder does a pretty decent job as well.

There is also Nattress Standards Conversion for FCP.
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Old May 16th, 2005, 05:58 PM   #8
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I tried out DVFilm Atlantis - it can't convert 50i to 24p as far as I could tell.
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Old May 16th, 2005, 06:21 PM   #9
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Atlantis won't directly convert 50i to 24p, but it will convert 50i to "film-motion" 60i. That's 24p embedded in 60i. You can use DVFilm Maker to then extract the 24p from the 60i. It's a couple of steps, but it will probably get you where you want to be.

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