NickHope wrote on 11/23/2016, 11:36 AM

Suggestions for corrections and additions via comments or personal messages are welcome but comments here may be deleted later as this is an "FAQ" post. Please start a new post or use an old thread to discuss subjects in depth or to raise individual cases.

Significant Changes:

17/12/2016 - Added "Adjust Size and Quality for Optimal Playback"

xberk wrote on 11/23/2016, 3:49 PM

Super post Nick. Very helpful. Excellent.

walter-i. wrote on 12/1/2016, 6:25 AM

Super post Nick - as all posts from you 👍

I work mainly with AVCHD files 1920x1080, 50 fps. When I reduce to 25 fps in project properties the playback framerate is significant better (if it comes to more tracks,PIP, Color correction an so on) .

NickHope wrote on 12/1/2016, 9:24 AM

I work mainly with AVCHD files 1920x1080, 50 fps. When I reduce to 25 fps in project properties the playback framerate is significant better (if it comes to more tracks,PIP, Color correction an so on) .

Nice suggestion! I added it (currently #8). Thanks

Adi-W wrote on 12/1/2016, 2:30 PM

This is something not clear for me about "Deinterlace method" : if you are working with Progressive footage (so selected in Project Properties) there will be no to deinterlacing happenings even if "Interpolate fields" or "Blend fields" is selected in Project Properties. Am I wrong to think so ?

NickHope wrote on 12/1/2016, 10:18 PM

This is something not clear for me about "Deinterlace method" : if you are working with Progressive footage (so selected in Project Properties) there will be no to deinterlacing happenings even if "Interpolate fields" or "Blend fields" is selected in Project Properties. Am I wrong to think so ?

No, you are correct. I had a feeling that the deinterlace method setting still had some obscure effect even if working with progressive footage in a progressive project, but I can't find any reference to that. So I've removed the reference to setting the deinterlace method "none" for progressive footage. I've also moved that section down the article, below other more important considerations.

Adi-W wrote on 12/1/2016, 10:50 PM

Hi Nick, thanks for the confirmation !

Skywatcher wrote on 12/3/2016, 11:38 AM

Thanx Nick! Lots of good advice there. Like others, I'd upgrade processor power and upgrade video card(s) and get the same results. Thank you for such a detailed walk thru for such a common issue.

Take a bow sir . . .

sammy wrote on 12/20/2016, 12:19 PM

great thanks!

SphinxRa40 wrote on 5/9/2017, 8:55 AM

Bookmarked! ty Nick

IAM4UK wrote on 8/31/2017, 8:38 AM

This is great information, and thank you very much for it!
I have downloaded and installed the trial for VP15, and have been dismayed at how horrible the preview is. I have tried the suggestions in this topic, and improvements to VP15 preview still leave it very, very far behind VP13. I hope that can be fixed, and that GPU rendering support can also be enhanced to include AMD GPUs.

System:

i7-6850K with 6 cores and 12 threads, standard clock (3.6GHz)
64GB DDR4 RAM, quad-channel
Samsung EVO 960 M.2 drive, 1TB
AMD R9-390 GPU

Kinvermark wrote on 8/31/2017, 9:21 AM

You MAY find this helps.....

https://www.vegascreativesoftware.info/us/forum/new-avc-issues-in-vp15-try-disabling-so4compoundplug-dll--108345/

Deathazori wrote on 9/14/2018, 6:12 PM

I want to use Sony Vegas 16 Pro, but it has a lot of problems. It has preview lag, when I press play it stutters, I get crashes, render crashes, and slow rendering

Here are my specs :

P.S. : this article didn't help, neither did the other one's

Kinvermark wrote on 9/14/2018, 7:08 PM

You are better to start a new thread outside of this FAQ.

The system specs are a start, but you will need to provide a lot more details (footage, project, render settings) to sort this out. Look at the FAQ "information needed to help you" and post that info. Also look at the crashing troubleshooter guides.