Results 1 to 2 of 2

Thread: Sony Vegas preview video lags badly?!?

  1. #1

    Unhappy Sony Vegas preview video lags badly?!?

    I've tried this on both Sony Vegas 12 and 13 and it doesn't make a difference. I used Bandicam to record using x264 and it made an .avi video file. After following the instructions located at for the H.264 and PCM codec section, I went ahead and was able to open my .avi files in Sony Vegas. However, the preview video is horribly laggy and if I let it play for enough seconds the audio just quits on me too.
    Things I've tried:
    1. Changing the preview quality (even to draft on lowest settings) - did nothing but make the preview look worse WITH lag
    2. changed project settings to a lower resolution - did nothing
    3. tried with GPU acceleration on and off - made no difference
    4. highered and lowered dynamic RAM preview max up to even 3GB and as low as default (200MB) - did nothing
    5. changed external video capture application (which i'm sure has nothing to do with playback) did nothing
    6. changed Preview device - did nothing
    7. tried selecting a region and hitting Shift+B for better playback but this won't work for me. It only does it for a split second then quits. Either way I shouldn't have to select small portions to have decent playback.

    The biggest factor here is that this is all taking place on a MUCH BETTER computer than my last one. And the last one handles playback JUST FINE! No lag or anything of the sorts. I have no idea why this would happen on a better build with overall better quality parts! Please help! When I look under Task Manager my CPU usage is only at 6% while all this lagging goes on too, so it's definitely not anything with my CPU. I have 8GB of RAM, so I know that can't be struggling since on my last computer I had 4GB and it was fine. It's also a 7200RPM hard drive.

  2. #2


    How full is the hard drive. One you get over 75% it's lost a lot of it's efficiency. Can you make viewable proxy files by using the selectivly pre render option in the tools menu ?

Similar Threads

  1. Problem with video Preview in Sony Vegas 9.0!
    By BASTURDONLINE in forum Sony Vegas video editing apps
    Replies: 1
    Last Post: 07-24-2010, 12:04 PM
  2. Sony Vegas 8 - Video preview f****d
    By Sony9sucks in forum Sony Vegas video editing apps
    Replies: 3
    Last Post: 02-02-2010, 11:19 AM
  3. Sony Vegas 9.0 Preview Video problem
    By Larliand in forum Sony Vegas video editing apps
    Replies: 3
    Last Post: 07-31-2009, 12:58 PM
  4. Sony Vegas Video Preview (How does it work lol)
    By Kloppstock in forum General video editing software help and advice
    Replies: 6
    Last Post: 07-16-2008, 01:07 PM
  5. Preview lags....
    By aocrackers in forum Sony Vegas video editing apps
    Replies: 8
    Last Post: 09-30-2005, 09:16 PM

Tags for this Thread


Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts