Vegas Pro19 preview stutters on simple transition (Dx) - No effects!

bruce-q wrote on 11/30/2022, 10:34 AM

Good day folks,

Since upgrading to Vegas Pro19, I am having preview issues with the simplest of effects - a disolve from one event to another.

My computer specs are listed in my signature.

I'm using AVC FHD (1910x1080) video at 59.940fps. My preview playbeck is set at "Preview - Auto".

I find I need to play the 1 second disolve back at least 5 times before it plays smoothly.

I have tried EVERYTHING! (I think...):

Setting the frame rate in properties to 29.97
Checked that Resample is disabled.
Tried matching the preview window to my video size (1910x1080).
Disabled Advanced Backup.
Rebooted computer/restarted Vegas.
Made sure I have the latest updates for both Vegas and Windows 11.

One thing I have noticed that appears strange: When I open Help>Computer in Vegas, it seems that Vegas is not recognizing Windows 11. This is what I get:

Operating System
Platform: Windows 10.0 (64-bit)
Version: 10.00.22621

What I actually have is Windows 11, v 22H2

Don't know if this is relevant.

Any pointers or advice would be very much appreciated.

Comments

Musicvid wrote on 11/30/2022, 10:45 AM

Select the transition .
Tools->Selectively Prerender Video.

relaxvideo wrote on 11/30/2022, 10:55 AM

In V18 it was fine? Or which version worked perfectly with no stutter?

bruce-q wrote on 12/1/2022, 7:05 AM

The last version of Vegas I was using was v16.

I really can't understand what I have done wrong. I will try the pre-render, but surely this should not be necessary with the processor and gfx card I have. I certainly didn't have to prerender with Vegas P16.

I have also searched the forum as well as checked trouble shooting and FAQs, all to no avail.

Any other ideas?

Many thanks in advance.

RogerS wrote on 12/1/2022, 8:12 AM

If this type of media works better with the old decoder you can select "enable legacy AVC" in preferences/ file io.

For transitions I often highlight and do a ram preview (shift b).

john_dennis wrote on 12/1/2022, 10:10 AM

@bruce-q

The vintage of your hardware is similar to mine or a shade newer. You should be doing better.

Perhaps you should expose us to the media that you're editing? Is it really 1910x1080?

Post Mediainfo Report or place a sample of the media on a cloud share and post the link here .

relaxvideo wrote on 12/1/2022, 1:19 PM

John: seems like your RX480 does a much better job than a 10 series nvidia card.
Is it right? My daughter has a 1050ti, but we think about upgrade to RX480 especially
when Vegas works so much better with it. (in games it's 1.5x faster for sure)

john_dennis wrote on 12/1/2022, 1:57 PM

@relaxvideo

For the $250 I spent on the RX480 I've been happy with it. It works well with the XAVC media from my camera. I'm not excited about a replacement for it. I'm curious about using the Intel on-die iGPU in the Intel 13th generation processors for decoding in the near future. I don't play games, but I do use Lightroom and Photoshop. The last Nvidia card I owned was(is) a GTS450 which never did anything for me.

RogerS wrote on 12/1/2022, 5:21 PM

You might take a look at the Vegas benchmark results for both playback fps (timeline) and render times. https://docs.google.com/spreadsheets/d/1b3ggVifKsuT-cp2kQHjum_KnQ4-2jBmUIvzmu7BQZ34/

You can see similar CPUs with different GPUs and how they compare in Vegas. The Intel decoders are great in Vegas if you have a CPU that supports one.

Personally I looked around at the GPU options and costs and picked up a RTX 2080 Super recently for about $300 USD used. You can see my results in the benchmark.