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Stutter with RAM Preview & playback
Hi,
I’m not sure this is the right place to post this question but hopefully someone can point me in the right direction if not.
When I render my video it stutters badly. Also, when I try to do a RAM preview it gives the error message ‘RAM preview needs 2 or more frames to playback’. I’ve looked at everything I can think of. The framerate is set correctly in the composition and render settings. It stutters really bad even in draft render mode. I’m really stuck.
Any help would be really appreciated.
Thanks.
Jonny Valdes
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7 Replies
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Try going to Edit–>Purge–>All. If that does not work, try turning off Enable Disk Caching in the preferences (Edit–>Preferences–>Memory & Cache).
Grant Swanson
Visual Effects Supervisor
Video Apex – Minneapolis, MN
videoapex.blogspot.com -
Thanks for the advice. There does seem to be a slight improvement but it still stutters badly. I’ve purged the cache and switched off disk caching.
Could it be codec problem? I also get an error from after effects saying ‘no such AVI compressor’ when I try to import other AVI files. Any suggestions would be great?
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Is it imported video that stutters? Or do graphics created in AE or PS stutter as well when motion is added? The video may be at a different frame rate than your comp.
As far as importing the AVI files… Sounds like they were rendered using a codec that your machine doesn’t have. Can you play them with Windows Media Player? Do you know where the AVI files are originating?
TC -
Hi,
Thanks for the response. To answer your question. I don’t think it is a frame rate issue as i’ve changed the comp and render frame rates to that of the clip.
To answer your question, the files play fine on my computer. In terms of where did the files come from, they’re from my Sony Handcam HDD HD camcorder. Interestingly, I have to change the extension to avi from mpg as ae won’t recognize the mpg file at all and comes up with the error ‘an unspecified avi or directshow error occurred. (1) (53 :: 33).
This is probably more confusing but i’m really stuck here and if i can’t get round this issue it will end my fun with ae. Really appreciate any help here.
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Dave may have hit it. You may need to convert the file first. Check with Sony, but if you need something quick in the meantime, try MPEG Streamclip from Squared 5. It should convert the file to whatever you need easy enough.
https://www.squared5.com/
TC -
they’re from my Sony Handcam HDD HD camcorder. I believe the files are AVCHD from that camera. Most NLE’s have a hard time with them, even Sony. They had AVCHD cameras out before the had Soey Vegas except them, not until Vegas 8. Converting them to m2t would help alot. I use m2t with AF just fine. Hope this helps, Danny Hays
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they’re from my Sony Handcam HDD HD camcorder. I believe the files are AVCHD from that camera. Most NLE’s have a hard time with them, even Sony. They had AVCHD cameras out before the had Sony Vegas excepted them, not until Vegas 8 did it. Converting them to m2t would help alot. I use m2t with AF just fine. There’s a free utility called Gspot that’ll tell you most everything about a video file like format, resolution, frames per sec, GOP structure and codecs used and if their on your computer. Very helpfull to overcome these types of problems. Hope this helps, Danny Hays
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