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Pavel Kuk
Slow on transitions
on Apr 15, 2014 at 9:49:27 pm
Last Edited By Pavel Kuk on Apr 15, 2014 at 10:03:25 pm

Hi people!

Here is the deal :(

I run vegas 12 : The goal was to shorten 15 min hd video to 5

Of course, used transitions... Nothing fancy - plain xfades. It does not play smoothly. The video either slows down ot stops in preview window while passing over transitions.

What could be the problem?

In my signature forgot to mention my video card - amd hd6870 1gb ram

Thsnks

AMD desktop 6-core 3.3 ghz
16 ram
64 bit windows 7 ultimate
Vegas 12
Cubase 5
StudioLive 16.4.2 mixer board


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Scott Simpson
Re: Slow on transitions
on Apr 16, 2014 at 12:19:17 am

Are you seeing this slowdown in the preview window or on final render.

If in preview, I'm not surprised -- rendering video on the fly and mixing it with other video like that can be taxing on the machine.

But if the final render still comes out looking wrong on the fades, I'm more stumped.

---
Radio guy in a TV world. Bigasssuperstar.com


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Pavel Kuk
Re: Slow on transitions
on Apr 16, 2014 at 12:26:24 am

In preview, of course ... Final render is great!

If i press shift b while xfade is selected, then it is great.
But in real time viewing - it does not want to work well.

Are you saying that this type of abehavior is normal when dealing with hd?

Thx :)

AMD desktop 6-core 3.3 ghz
16 ram
Video card: AMD HD6870
64 bit windows 7 ultimate
Vegas 12
Cubase 5
StudioLive 16.4.2 mixer board


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Steve Rhoden
Re: Slow on transitions
on Apr 16, 2014 at 2:18:56 am

The video either slows down and stops in preview window while
passing over transitions.

That is quite normal on a normal system Pavel.


Are you saying that this type of abehavior is normal when
dealing with hd?

Yep!

Steve Rhoden
(Cow Leader)
Film Editor & Compositor.
Filmex Creative Media.
http://www.facebook.com/FilmexCreativeMedia
1-876-461-9019


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Norman Black
Re: Slow on transitions
on Apr 16, 2014 at 2:57:07 am

Nothing guaranteed to always be smooth. You seem to have a pretty good setup so most things should most times be smooth. I say that based on things *I* have edited and are normally smooth.

To go any further you need to provide information as to exactly what your situation is.

What is your source material. A MediaInfo spec list is the ultimate info here. Otherwise, resolution, video codec, bitrate, progressive/interlace would be nice.

Your project settings.
You preview window setting.
Internal preview only or internal and external preview.
Where are the source media stored. Internal HD, external HD, network.

Does it still hiccup with an empty project with just one clip which you split and create a crossfade?


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Pavel Kuk
Re: Slow on transitions
on Apr 16, 2014 at 3:13:37 am

Thx

I need to look into it to get all the deatails

Perhaps some settings in prefereces need tobe changed?

So my system is sufficient to work on video materials?
I sometimes think that had i not been scanty of extra 200 i would've gotten an intel processor instead.
It seems it would make more difference..... Or not.

Pk

AMD desktop 6-core 3.3 ghz
16 ram
Video card: AMD HD6870
64 bit windows 7 ultimate
Vegas 12
Cubase 5
StudioLive 16.4.2 mixer board


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Norman Black
Re: Slow on transitions
on Apr 16, 2014 at 4:38:55 am

The intel CPU would certainly make a difference. There was a day when AMD was better but once Intel changed directions after the Pentium 4 they have left AMD in their rear view mirror.

Still a 3.3Ghz AMD CPU sounds reasonable but I have no direct way to compare. I had a core i7 860 2.8Ghz CPU before and it edited video just fine. Even some 1080p60 stuff.


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John Rofrano
Re: Slow on transitions
on Apr 16, 2014 at 12:21:25 pm

[Pavel Kuk] "I need to look into it to get all the deatails"
The source format of your video is extremely important. I mostly work in HDV which edits very smooth even on older computers. I also use AVCHD which now edits smoothly on modern computers but at one time had a lot of lag. Formats from still image DSLR cameras like the Canon 5D/7D are now the challenging formats that still have lag.
[Pavel Kuk] "Perhaps some settings in prefereces need tobe changed? "
Your project settings should match your video format. If they don't, Vegas Pro will try and convert the video on-the-fly to match the project making editing very jerky at times. So make sure that you match your project to your media.
[Pavel Kuk] "So my system is sufficient to work on video materials? "
Yes. While an Intel Core i7 would have been better, your system should be fine. Your video card is one of the BEST cards to use with Vegas Pro. I have the ATI Radeon HD 5870 and it is faster than my $800 NVIDIA Quadro 4000. Using the Sony GPU Test (i.e., the "Red Car" test) my Quadro 4000 slowed down at every transition but my Radeon HD 5870 played them straight through at full frame rate.

So depending on how demanding your video format is to decode, and if it matches your project, you may get a very different editing experience. Other NLE's like Final Cut Pro X pre-render video in the background to keep editing as smooth as possible. Vegas Pro does not do this automatically (you can use Shift+M to manually force it to do this) so the user experience isn't as smooth.

~jr

http://www.johnrofrano.com
http://www.vasst.com



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