Dropped frames every 1:40

[cmassa]

I am capturing some home movies from my analog camcorder through an ATI AIW 9800. I am using virtualdub_sync. I have disabled my network connection and any services not needed. I get a single frame drop every one minute and forty seconds. This occurs regularly from the start of the capture. My system is a 3.2 Ghz P4 with 2 GB RAM. CPU usage never gets above 20%. I am using Huffyuv for compression. Other random frame drops are quite rare. I know I won't see these in the finished DVD but I am trying to find the source. I don't believe it is the computer or other software on the system as it is exactly every 1:40 from the start of the capture. I have virtualdub_sync set to dynamically sample audio and not drop frames if out of sync.

Any ideas?

Thanks,
Chris

[daamon]

Hi cmassa,

Welcome to the site and the forums

You posted in the "Capturing" forum - go back to it's page and there are a couple of "Stickys" that might well be of interest...

Good luck.

[cmassa]

I have looked through those and haven't seen things relating to very regular frame drops. I don't remember it happening on previous captures but maybe I didn't notice the regularity. I'm guessing it is virtualdub_sync dropping a frame to remain in sync with the audio but I thought this version was supposed to change the audio and not drop frames to compensate.

Chris

[thecoalman]

Antything acessing the drive such as Windows indexing service? Might want to open task manager (ctrl-alt-delete) while captureing and see if there's any CPU spikes from other processes while your capturing.