Preview window seems to be slow-motion

Gladiator wrote on 8/16/2022, 8:25 AM

Hey there, switching from DaVinci Resolve as it doesn't seem to handle my longer 2K videos very well. I'm giving Vegas an honest try before moving back to Adobe (my wallet hates Adobe.)

The preview window for my videos (media is 2560x1440) seems to run in a much slower timeframe than the video itself. I have tried changing the preview quality settings, adjusted the available RAM slider, changed countless project settings, no dice. The audio plays at the correct speedrate, but the video simply appears to be slowed drastically down. Is this because my footage is at 144FPS and the timeline settings are set to 60? Or does it have something to do with the fact that I am using the trial edition of Vegas?

Any help much appreciated.

Comments

Former user wrote on 8/16/2022, 11:00 AM

@Gladiator Hi, can you go to your icon at the top, click it - My Profile, & fill in your Signature with your Vegas version, Windows version & system specs, Full name of CPU, GPU, & amount of RAM etc. this will then show at the bottom of the comments 👍

Also there's a tool called MediaInfo, download it, it's quick & free https://mediaarea.net/en/MediaInfo
After downloading, right click on the media in your Windows folder, open MediaInfo, choose Text from the View option, select all, copy & paste in a comment here,

like this

fr0sty wrote on 8/16/2022, 3:23 PM

Slow motion video is going to play back in slow motion in VEGAS by default, if you want it to play at normal speed, right click on the clip in project media, and select "properties". In "playback rate", adjust this number to be the correct speed...

for instance, if I'm shooting at 96fps, and I'm in a 24p project, 96 is 4 times faster than 24, so it will play in slomo on the VEGAS timeline... but if I enter "4" into the playback rate box, it speeds the video up 4x, so it will play back in real time.

If the slow motion is caused by the video is lagging due to CPU/GPU performance limitations, you can try making a proxy by right clicking on the file in project media, select "create video proxy", and wait for that process to complete. When done, set the preview monitor's quality to "preview" or "draft" and it will use the lower quality proxy file, which plays back much smoother. When you go to render, it automatically swaps the proxy with the original media.