Ram previews are not in real time

[Kevin Camp]

the first question, are you hitting the zero key on the numbers pad to generate the preview or the space bar…. hitting zero will generate a ‘ram preview’ (cache as much of the render as possible to ram, the limit is around 3gb of ram). space bar will play the render from disk, which may not play at realtime depending on the data rates of the codec and your drive.

if that’s not the problem, is ae set to preview thru your aja card to a broadcast monitor? if so, disable that previewing… preferences>video preview, set it to computer monitor only. if that helps, make sure you have the latest drivers for the card then try re-enabling it. if you still have problems contact aja (or search their support).

if that doesn’t help, disable opengl previews… preferences>previews, uncheck the box that says enable opengl.

as for the 16gb of ram… i doubt this is related to your problem, but if you aren’t running a 64-bit operating system (like xp-64), your system cannot see more that 4gb of that ram, so you are not getting any benefit from the extra ram. you didn’t mention xp64, so i thought i’d mention that. also note that i’ve heard that it can be difficult to find various drivers for xp-64, so you’d want to make sure you had drivers that worked with that os.

Kevin Camp
Senior Designer
KCPQ, KMYQ & KRCW

[Chris Allen]

Kevin, thanks for the reply.

You are correct, running reg ol’ win xp, zero key for previews, opengl is off, and the previews are set to computer mon only.

Whats weird is I get the same frame rate from a complex comp as I do with a solid and 2 key frames.

Thanks again.

C.

[Kevin Camp]

hmm..

open the time controls panel (window>time controls). does the frame rate setting there match the comp’s frame rate and skip frames is set to zero?

Kevin Camp
Senior Designer
KCPQ, KMYQ & KRCW

[Chris Allen]

Kevin,

Yes sir, frame rate is correct, and skip is at zero, we just updated the drivers for the video card as well (nvidia quadro fx 5500).

C.

[Kevin Camp]

i’m running out of ideas here….

is this a problem that just popped up? if so, has anything about the system recently changed (software update, new hardware, etc)?

have you rebooted recently? (that’s always my last ditch effort to get things to operate correctly)…

the only other thing i can think of is that there is a problem with your ram or the configuration of that ram in your system…

i still have a ten-year-old mac g3 wih ae4 that can play ram previews on it’s 512mb-66mhz ram in realtime, so there is obviously a problem here. you may ned to contact adobe support (or try their ae forum) for further trouble shooting…

Kevin Camp
Senior Designer
KCPQ, KMYQ & KRCW

[Eric Woods]

Have you solved this problem? I dealing with the same situation. No matter how complicated the comp is it only plays at about 6 fps. Even if it is 3 seconds of solid. How did you solve your problem?

EricWoodsFX.com