Probably must be because it was recorded with a variable frame rate that is common feature of videos recorded with iphone. Vegas has difficulty with such files.

If this is indeed the case, one of the forum members is developing a tool that corrects this problem.

But I'm not sure if it really is that.Can you upload one of these clips so that we can analyze better?

You'r using heavy files for a processor like yours is.
I see 3 options

- convert the files with a converter to AVC with steady framerate

- use proxy files in Vegas

- upgrade your processor

A better processor can solve lags, but what about crashed with memory errors?

Probably must be because it was recorded with a variable frame rate that is common feature of videos recorded with iphone. Vegas has difficulty with such files.

If this is indeed the case, one of the forum members is developing a tool that corrects this problem.

But I'm not sure if it really is that.Can you upload one of these clips so that we can analyze better?

Here you go, i was sure that iphone captures with steady fps...

https://www.dropbox.com/s/6kcgog7vb0m22ke/IMG_2118.MOV?dl=0

A better processor can solve lags, but what about crashed with memory errors?

6700hq is a mobile CPU, so it probably will not be that easy to change that. At least you should look into 32gb RAM. And if possible take a cheap 128gb or 256gb NVMe to locate the page file on there.

Here you go, i was sure that iphone captures with steady fps...

Your files has not 60fps but 30fps steady framerate.
Later on I will try that file a few times placed on a timeline on my VPro 16.

I downloaded the clip and brought it into VP16. The clip dropped on the timeline instantly and played at 30 fps. No issues. 🙂

I downloaded the clip and brought it into VP16. The clip dropped on the timeline instantly and played at 30 fps. No issues. 🙂

yeah, but he is talking about 400 clips not just that one.

...then maybe start with a few clips at a time and then see when the bottleneck starts..... but one thing for sure, at least according to MediaInfo, this is not a 60fps video. It shows 30fps constant.

The video opens normal here. But if it were 400 clips with 4k resolution I sure would have the same problem. In this situation or should only work with some clips at a time or use proxies.

Here I'm back on my desktop. I placed that file 5 times on the timeline of VPro 16, made crossfades between them and fades at beginning and end and played it full preview in a 4 K progressive 30p project.
As I will show no problem while in the meantime also I make a screenvideo with OBS. For sure with those files nothing wrong with the memory and the videocard is helping also I show you on the taskmanager.

Well, i've kinda solved this issue with installing Adobe Premiere. It works with no issues.

As for 60fps mentioned in first post, my mistake. All footage is 30fps for this project. Other things are correct.

Your system is not a capable editing machine (weak CPU and not enough RAM), and HEVC is not a format designed to be edited, as it requires insane amounts of CPU power to decode vs other formats. You need to convert the files to a more editing friendly format, and get a better system, if you want steady performance.

Your system is not a capable editing machine (weak CPU and not enough RAM), and HEVC is not a format designed to be edited, as it requires insane amounts of CPU power to decode vs other formats. You need to convert the files to a more editing friendly format, and get a better system, if you want steady performance.

You most likely will not find any Smartphone that is capable of recording 4K in any other codecformat, at least i am not aware of one. By Converting it you need even more time for the whole thing than just make proxies out of it (which would be the way to go if one confronts performance issues about 2160p footage). And for the same overallquality preservence you need even more space on your drive.

That's actually what I was referring to when I said convert, I should have been more specific.

FWIW, your comment was quite clear to me. :) I think eikira hasn't quite worked out who the experienced & knowledgeable users are.

Besides, both proxies and intermediates are legitimate workflow solutions depending on circumstances.

FWIW, your comment was quite clear to me. :) I think eikira hasn't quite worked out who the experienced & knowledgeable users are.

First of all, that is quiet arrogant in tone. Second i pointed just stuff out for the Threadcreator and not for you. Because maybe he cant and does not want to care about converting outside from vegas befor he can work with his 4K HEVC Iphone X stuff in Vegas, so it really does not matter if you understood what anybody else meant.