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Forums VEGAS Pro Ever changing render time?

  • Ever changing render time?

     Red-Rob Rothkopf updated 1 week, 1 day ago 2 Members · 2 Posts
  • Martin Stanesby

    January 9, 2021 at 8:31 pm

    Hi All,

    This baffles me.

    Sony Vegas pro 18. I rendered out an edit. It took 1 hour. All good.

    I render out the exact same edit straight after using the same settings…..3.5 hours.

    Why? Does my software need a rest? How can it change when all is exactly the same?

    I Would love some explanation from anyone more knowledgeable than me.



  • Red-Rob Rothkopf

    January 9, 2021 at 8:52 pm

    I’m still using Vegas Pro 17 and am a long-time fan and user. While I can’t answer on exactly what’s going on, I can offer a few possibilities from experience, which could be causing an experience like this:

    1. Windows Update — If Windows Update runs and has a “pending update” waiting, I’ve found things take MUCH longer.. this has bitten me more than once

    2. Dead (but still active) Vegas process — After exiting Vegas, I often will find a Vegas process still running when I open Windows Task Manager (Ctrl-Shift-Esc, Processes, More Details, Background processes). Very often things do not work properly for me (or reliably) while those straggling processes are still running. Ending those tasks makes for a more stable experience.

    3. You’re saying it’s “exactly the same” but if it were “exactly” then why are you re-rendering? I’ve found Vegas performance can drop significantly lower if a track’s opacity (e.g. if you have an opacity envelope on a track) accidentally got bumped to, say, 99% instead of 100%

    4. Are you on a laptop? I’ve had *several* laptops randomly throttle CPU usage down from full speed to an abysmally low speed.. I ultimately resolve by using “ThrottleStop” app and never have been able to just get them working properly. Opening Task Manger, looking at Perfomance tab, look at “Speed” and “Base Speed” as well as what your CPU is rated for (on the top). When rendering, is your CPU Speed at, near, or above your actual CPU’s capability? Or is it much lower and not moving at all?

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