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Why won’t AE Ram Preview in real time out an HD Card??
Does anyone know why AE does not Ram Preview in real time out a BlackMagic HD link card? I have it set to just RAM Preview out the card (not the desktop) but it only plays 6 FPS???
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3 Replies
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Are you outputting to an SD monitor? The downconversion from HD to SD isn’t always realtime.
Bar3nd
Forum COWmunity leader for:
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I recently did some HD work and encountered the same problem. I using an hp xw9300 with dual dual-core opterons and outputting through a multibridge extreme to an sony broadcast HD monitor. There are some settings that need to be tweaked in the Video Preview prefs, but I still get less than realtime playback of RAM previews. Anyone shed any light on this one?
Matt
Matt Stalker
Center City Film & Video
mstalker@ccfv.com -
I’ve got the same problem using a Quad G5 with Kona LHe-card. Exporting RAM-previews as QuickTime files and playing them from the Kona TV app makes it possible.
AE gives me between about 4 to 12 fps in HD (16-bit kills, 8-bit is still more or less useless to monitor motion).
AE’s interface also takes a performance hit for no good reason while outputting to the monitor. My video-card is native HD and handles the SD down-convert by it’s self.
My fix is to turn off monitor aside from checking colors and such and render out files for previews. Motion I can see on the comp’s TFT-screen well.
This shouldn’t be an issue. RGB-files out of memory should play in realtime.
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