-
Smooth video playback issues
We’ve been using Vegas since version 5 here at our studios for audio and audio post to video. We’ve always had the same issue. Playback of video is almost always jumpy. We are using Vegas Pro 8.0b on all of the machines and they are fairly up to date. The machine in my stdio is a Rain Recording Labs Element witha core2duo 2.13 and 4 gig of RAM. It has an Nvidia GeForce 7900GS video card and I’m outputting to the monitor with a Blackmagic SP card. I’ve also tried output through a Canopus box with the same results. Our clients will usually send us a Quicktime to work with and usually it’s fairly low res. I know that’s part of the problem. I had also had this issue with completely uncompressed video but not nearly as bad. Would a stronger video card help. (512mb or larger) Is there anything else I can do. It’s embarrasing trying to play these things back with clients in the room sometimes. When I’m using Nuendo on my movie projects with the same hardware I don’t get these issues. And yes I get the same crappy quicktimes from the movie studios usually.
Thanks for any help you can provide.
Ross
Groundcrewstudios.com -
4 Replies
-
Playback is directly tied to the speed of your processor. The video card does not matter one bit when it comes to Vegas. You never stated what quality you had your preview set to. You may want to bump it down to preview or full auto or half.
An alternative would be to do a RAM preview- you can do this by seting a selection to loop and it will automatically build the ram preview for as much ram as you have allotted. Depending on the complexity of the file/fx you may only be able to do 5 seconds or 45 seconds or more.
j razz
-
Thanks for the reply. Just seems strange that a video program would rely entirely on the CPU and not use the GPU for playback. We just don’t have time to re-encode these files when clients walk through the door with them. The machines in this building have some very strong processors and it doesn’t seem to make much of a difference on playing back a compressed file. I think we are just going to switch all of the studios over to Nuendo for our post work. Thanks again.
-
I think that having the NLE rely soley on the CPU gives it a strength in that it is agnostic when it comes to hardware. However, the limitation is exactly what you have encountered. There have been talks of AMD & ATI partnering with Sony at the last couple of NAB’s.
j razz
-
I started having the same problems when I switched from an ATI card to NVIDIA. It hiccups on a consistent basis. I am able to play back at higher preview resolution so I know the video card is doing a better job than the previous, but the upgrade also introduced this strange hiccuping.
In fact this problem also has been an issue on a different machine with an NVIDIA card. But until I did this upgrade from ATI did I begin to really suspect the video card. Let me state that I have nothing against NVIDIA, in fact I kind of believed they made a better product, for no good reason.
Same computer, same CPU, different card. Very interesting. My sugggestion is to either change platforms if you wish, or try an ATI card on the same machine and see what happens.
Anyone out there that has an NVIDIA and does not have this problem, or can shed some light if they had to do some modifications to get correct playback?
Reply to this Discussion! Login or Sign Up