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Dotted 8th note
Known Participant
October 23, 2020
Question

The crapshoot of a laggy final .mov file

  • October 23, 2020
  • 2 replies
  • 488 views

I do not understand why sometimes I get a video that I 'export and share' to my hard drive initially being laggy and other projects works just fine and dandy. Every video is me sitting in a chair with a chroma key background. I initially thought the projects that were laggy, were because my video card was taxed or something....when I'd wake up the next day and export the project to a .MOV file, it played back OK. So, I figured my latest project video would do the same so I uploaded it to youtube , and it is laggy! I'm not adjusting any settings...what could cause this? I have Windows 10 pro, Ryzen 7 2700X CPU, Radeon RX570 video card, 16 megs DDR4 memory , combination of SSD and mechanical drives....I don't get it....why is there this total crapshoot as to whether the video is going to be laggy or not?

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2 replies

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Community Expert
Bill SpragueCommunity Expert
Community Expert
October 24, 2020

Apple likes to use a codec called "HEVC" or "H.265" because it reduces file size.  The downside is that it intensifies the computer processing load for editing.   Other than buying a more powerful computer, or even a powerful Apple computer, the easy solution is to set iPhones to record in "Most Compatible" settings.  I don't have an iPhone so can't post an image of the exact setting screen to do this.  

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Dotted 8th noteAuthor
Known Participant
October 24, 2020

You'd think though, an 8 core CPU at 3.3ghz per core should be way more than sufficient...That is, I suppose, if Premeire can take advantage of multi-threaded or make use of multi-cores simultaneously to process stuff , or however that works

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Dotted 8th noteAuthor
Known Participant
October 24, 2020

The other major bummer converting the video off the phone to an MP4 in handbrake, is having to redo the editing , including the intro and it's letter fx, getting the chroma key to look right again, which frankly, is also a crapshoot to get to work corretly, since there is no definitive step by step in Premiere's linked help page that was of use. At least for me...sometimes the background blend was awful, blanked out the main video entirely and 10 other things, then I'd try it again (really needs to be a clear cut, step by step for this) and lo and behold it looks good. Never sure what step or thing I did differently to make it work.

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Dotted 8th noteAuthor
Known Participant
October 23, 2020

Forgot to mention...it is laggy in the .prel file , before the export....

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Dotted 8th noteAuthor
Known Participant
October 23, 2020

and yes, I have the infamous 'yellow-orange' line above the timeline, which Adobe premiere equally famously doesn't tell you about when you're new to the software or more importantly, give you any indications on how to fix or correct whatever it is that may be 'optimized'....Help!

S
Steve Grisetti
Legend
October 23, 2020

What do you mean by laggy?

 

Do you mean that the timeline doesn't play smoothly or that something is wrong with the rendering process or the output?

 

You say it's laggy on YouTube. Can you post a link to it so we can see the lag?

 

Also what version of the program are you using and what device was used to shoot your original video?

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