VS7 to VS8 Upgrade - Capture Problems

ugadog · Post by **ugadog** » Fri Dec 31, 2004 8:43 pm

I have been using VS 7 without problems for about 1 1/2 years now. I decided to upgrade to VS 8 and also add the AC3 (Digital Dolby) plugin, assuming that my two year old machine would be fine. However, video capture using VS8 now results in 2-3% dropped frames and jittery, broken audio. VS 7 still works perfectly to capture and I have meticulously tried to ensure all settings are the same in VS7 & VS8. Capture settings, using 1394 firewire card are:

AVI capture
720 x 480, DV Type-1, NTSC, DV Audio
Ulead DirectShow Capture Plugin

My machine is 1.2 GHz, 512MB RAM, 200 GB 7200 RPM dedicated video capture drive with DMA enabled and recently defragged. Using Task Manager, I monitored the vstudio CPU usage during capture. Result was VS7 used 40-50% CPU during capture, while VS8 was hogging 98-99% of the CPU.

I am hoping this doesn't mean I need a new machine with more horsepower to run VS8. Any ideas or suggestions ... other than "buy a new machine"? What is it about VS8 capture that is so much more CPU intensive than VS7?

jchunter_2 · Post by **jchunter_2** » Fri Dec 31, 2004 9:41 pm

Have you installed the 8.01 update? There is a memory leak in 8.00.

BTW, I did not notice any increase in CPU busy when I started using VS8.

Strange. Did you do anything else to the system at the same time?

Spybots and Data Miners?

I have no experience with AC3 audio capture. Torsten?

ugadog · Post by **ugadog** » Fri Dec 31, 2004 11:18 pm

Thanks for the ideas!

Yes, I have installed the 8.01 patch. Have not knowingly done anything to my system that could affect the capture. And if it was a problem outside of VS8, I would think I would be seeing it in VS7. But no problems at all there ... I still have both versions installed ... VS7 captures fine, VS8 does not.

I am running Ad-Aware on my machine, so it is kept pretty clean from spyware/adware.

I also wouldn't think that the AC3 plugin would cause a capture problem when capturing to AVI. That plugin is really only an alternative to uncompressed LPCM audio when rendering to MPEG, which I always do later on after editing is completed.