Dropped Frames on Multiple Video Tracks

faz500 wrote on 10/12/2005, 7:32 PM

Hi, I'm having various problems with 2 systems. I am running Vegas 6.0c with a Decklink Pro card going to a JVC monitor via composite. I am also working in PAL. The problem is with the performance of the systems.

When I have 1 video track, it all plays fine - 25 frames per second preview to the monitor on the Good (Full) setting. However, when I add any more video tracks, I begin to get dropped frames on the preview (playback at 8 - 16 frames a second) and the system starts to struggle (100% CPU usage on the Task Manager). The additional video layers are all just SAMPLE TEXT using the titling tool within Vegas and we will need to have up to 5 layers of these or photoshop graphics in our final product (this is for broadcast).

This is all OK if I change the setting to Good (Auto) but the picture quality on the external monitor is unusable (pixelated and text is squashed and unreadable). So in short, I need a to have a Good (Full) preview of my project on my broadcast monitor with multiple video tracks visible.

This is the spec of the systems:

Dell 380 Precision
Intel Pentium 3.20 Ghz
2GB RAM
80 GB Hard Drive
Nvidia GFX Card
Decklink Pro Card (connected via Composite to JVC Client Monitor)

Any help would be much appreciated.

Comments

David Jimerson wrote on 10/13/2005, 10:13 AM

You've got a reasonable processor and a good amount of RAM, but using only one hard drive -- and a fairly small one at that -- will be problematic.

It's always best to have your media on its own dedicated drive, and on a separate channel from the system drive. (This means, don't plug your hard drives into the same IDE cable. )

That's the most obvious critique of your system. What other programs are you running? Virus protection? Firewalls? Anything else going on the background and sucking processor resources?