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HVX200p @ 59.95 fps AF CS3 slow RAM
I’m new to the whole HD thing. I have HD footage from a HVX200p at 59.94fps deinterlaced. When I bring the footage into AE CS3 & make a comp directly from the footage it should have the correct settings right?
(1920×1080 (1.0), 59.94 fps, millions of colors)When I Ram render the footage it plays back slow. I rendered a seconds out but my Quicktime is sluggish & doesn’t play back smooth.So I can’t see if it’s playing correct speed or not.
Does anyone have any suggestions as to why this is happening & how I might correct it?Thanks in advance, Maryanne
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4 Replies
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[Dave LaRonde] “each frame of HD contains just about FIVE TIMES the number of pixels”
actually, for what maryanne has, it’s greater than that… 1080i would be 5x greater than interlaced sd, 1080p60 would be over 10x greater… 1080p frame is double the resolution of a 1080i field.
but one thing you (maryanne) mentioned… you said the ram preview played back sluggish. are you hitting the spacebar to create a preview, or the zero on the numbers pad?
spacebar doesn’t create a ram preview, it caches the comp to disk and reads from the disk. so playback rate is dependent on disk speed and may not be realtime.
zero on the numbers pad caches the comp to ram, and ram previews will almost always playback in realtime, even on slow computers. about the only time ram previews won’t play back in realtime is if you have a third-party video capture/playout card that can’t handle the comp size that you are working in and have ae set to output thru that device for renders/previews. change that preview setting and it should be fine.
Kevin Camp
Senior Designer
KCPQ, KMYQ & KRCW -
Much better thank you. I did quarter the RAM res. & skipped frames.
Now when I finally render this out & give it to my editor it should play back fine on say Avid DS? Also, Kevin mentioned interlaced but the footage is De-interlaced. Should I change it to interlaced?Thanks in advance, Maryanne
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since avid will most likely need to work within video standards, then you’ll probably need to output 1080 as 29.97 fps, it’s your choice on whether to re-interlace, but it will look smoother interlaced.
when you send to the render queue, click the render settings and choose to render to fields, upper first. i think you can just set the frame rate there to 29.97 and it should be fine….
if not, change the comp to 29.97, then enable field rendering as before (in the render settings).
also, make sure your avid editor knows that you were working in a square pixel aspect ratio so they can import accordingly (many working hd codecs use a 1.33 par to reduce the bandwidth of hd to more easily work with it, the editor may need to know that you used a 1.0 pixel so avid can import corrrectly).
Kevin Camp
Senior Designer
KCPQ, KMYQ & KRCW -
my assumption was she had 1080i and de-interlaced it to work with it as 1080p60…
i used to work with interlaced sd in a similar way when keying… now we usually shoot in 720p60 so i don’t have to worry about interlacing anymore… yay.
Kevin Camp
Senior Designer
KCPQ, KMYQ & KRCW
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