Jerky preview

[Black Lab]

Not all, but that is my point anyway. AVCHD is a highly compressed format and, in some cases, proprietary to the maker of the camera. Hence problems with editing, although editors are catching up to the technology. Problem is, technology is changing too fast. That alone has its positives and negatives.

[teleoma]

Hi. I'm using the trial version of VideoStudio Pro x3 and I'm editing together a music video. When I press play to preview the footage, it plays back really jerky for anywhere between 5 and 10 seconds. This shuddery behaviour is making it impossible to accuratey sync the footage to the soundtrack. Whats the reason behind the jerky preview? Is it a common problem? Thanks.

Hi,
I had the same difficulty in the preview window when previewing a HD project with hardware acceleration checked (settings/preferences/performance). Acceleration unchecked, and it plays OK.

[tom799]

Hello.

The main reason why you get jerky video is that key component from earlier versions is MISSING:
there is no "High Quality Playback" anymore, just "instant playback".
HQ was prerendered each time after you changed something in timeline. Then, you wouldn't watch raw footage,
but prerendered with all the effects, multiple overlays blended together...smooth as cream.
I don't know why Corel removed this, but it is crucial for me to get critical audio to video sync "in a frame".
Somebody would say that I should get myself stronger PC, but hell not, I have two X2 ultimate licenses on my
PC's that work excellent. X3 should work even better, but that's not the case.

I downloaded VSX3 trial because I owed every VS from 7 until X2, but I believe that if they won't get that option back,
VSX2 could be my last Video Studio. Anyway, DVD Workshop is discontinued, Video Studio is getting worse, I believe
it's finally time for me to go somewhere else.

[tom799]

And oh,

sjj, I cannot believe that you can say that about in a time where we live, actually in time of Canon 5D MK2, 7D, 550D.....
Of course that still camera video is great, I make living from that, making video with 7D and 550D.
And I owe Canon XL2 and XL H1!

also, I cannot believe that you actually recommend using some free app to make workflow more manageable?

Tell me, why should editing in QuickTime be unacceptable? If I want to publish in QT SmartRendering in QT should speed up my workflow, I don't see point in recording in QT (maybe only what that camera is able to record in), then reencoding to MPEG2, then REENCODE back to QT?
That's ridiculous, I wonder how your workflow looks like if you do everything like this.

And besides, why should I use some free tool to convert Quicktime to MPEG2 when I have VideoStudio? VS does the same, better and faster....

[Black Lab]

Hello.

The main reason why you get jerky video is that key component from earlier versions is MISSING:
there is no "High Quality Playback" anymore, just "instant playback".
HQ was prerendered each time after you changed something in timeline. Then, you wouldn't watch raw footage,
but prerendered with all the effects, multiple overlays blended together...smooth as cream.
I don't know why Corel removed this, but it is crucial for me to get critical audio to video sync "in a frame".
Somebody would say that I should get myself stronger PC, but hell not, I have two X2 ultimate licenses on my
PC's that work excellent. X3 should work even better, but that's not the case.

I downloaded VSX3 trial because I owed every VS from 7 until X2, but I believe that if they won't get that option back,
VSX2 could be my last Video Studio. Anyway, DVD Workshop is discontinued, Video Studio is getting worse, I believe
it's finally time for me to go somewhere else.

You should post this in the Wish List thread.

[tom799]

Yes Black Lab, I'll do this as you said. Sincerely I don't know whether it will have any effect at all, but it doesn't cost anything.
I must admit that it's quite a lot of wishes there, maybe it isn't bad idea for moderator to summarize all of those wishes
as a sticky or first post in form of a bulleted list or something...

In meanwhile, here's old video of mine just to show you why HQ playback is an issue.

http://www.foto-vugrinec.hr/grobnik/VTS_01_1_1.html

It's an old video, but I don't have time to encode something similar for web.
I have two video tracks here, both filtered, and contrast corrected.
Plus, flash video overlay as a third video, and transitions synced to rhythm, e.g. bpm's.

I remember I was doing that on a 3Ghz P4. There was no way of realtime editing with that lack of power then,
and sincerely, today isn't much different. Nor E8500 cannot pull that to realtime, and somehow I don't find X2 so fine
tuned to Core2Duo as stated on box. Rarely I get full 100% CPU load when encoding with it.
So, why to buy Quad anyway?

[Black Lab]

Yes, there are a lot of suggestions there, but Corel does read them and actually implemented many of the last wish list's wishes into X3.

[tom799]

I'll try to compile my wish/bug list soon. I would love to see that something of that would be included in X4 or update patch either...

Since I spend minimal 8hrs per day in VideoStudio I find myself quite qualified to do so. We'll see.

Tom

[Black Lab]

I'll try to compile my wish/bug list soon.

If you will be adding to the Wish List thread please keep it as wishes and not bugs.