Hello:
I posted last night regarding "freezing" or "stuttering" video in the preview window during playback and discovered something else tonight.
If I just select "clip" in the preview window, my CPU usage stays well under 100% and there is no skipping during playback. If I select "Project" in the preview window my CPU usage pegs at 100% and I get skipping and stuttering of the video in the preview window.
What would cause this, and how do I prevent it? This makes it very difficult to view my edited video clips in a smooth, flowing fashion. Any help would be greatly appreciated - thanks.
Video Freezing in Preview Window
Moderator: Ken Berry
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Telgaladhion_Greyskye
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Trevor Andrew
Hi
I noticed a difference when I upgraded to VS 9.
Playback was poorer, at times being intermittent.
Although the addition of transitions, filters etc has a lot to do with it, (Album transitions being very demanding), video clips without have also suffered. The type of file also seems to effect the efficiency of VS 9.
What I noticed yesterday was by keeping the frames within the preview timeline (fit project in timeline) that playback improved.
Click the button to the right of the ‘+’ symbol.
VS 9 changed its preview from earlier versions the timeline automatically scrolls whilst being played. By keeping the frames within the timeline this action is not required.
You could also try playing your video in ‘storyboard view’.
The other option is to change the playback mode to ‘High Quality Playback’ (File/Preferences).
This will create temp’ preview files, playback is much improved but the render times could be annoying.
Check the location of your preview files.
My processor runs at 100% when using project playback and 40% on clip playback.
The video is one single file with no additional bits added.
Using High Quality Playback the processor ran at 43% playing without hesitation.
Switch off all background services.
Trevor
I noticed a difference when I upgraded to VS 9.
Playback was poorer, at times being intermittent.
Although the addition of transitions, filters etc has a lot to do with it, (Album transitions being very demanding), video clips without have also suffered. The type of file also seems to effect the efficiency of VS 9.
What I noticed yesterday was by keeping the frames within the preview timeline (fit project in timeline) that playback improved.
Click the button to the right of the ‘+’ symbol.
VS 9 changed its preview from earlier versions the timeline automatically scrolls whilst being played. By keeping the frames within the timeline this action is not required.
You could also try playing your video in ‘storyboard view’.
The other option is to change the playback mode to ‘High Quality Playback’ (File/Preferences).
This will create temp’ preview files, playback is much improved but the render times could be annoying.
Check the location of your preview files.
My processor runs at 100% when using project playback and 40% on clip playback.
The video is one single file with no additional bits added.
Using High Quality Playback the processor ran at 43% playing without hesitation.
Switch off all background services.
Trevor
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Telgaladhion_Greyskye
What I do, to speed things up (especially during rendering), is to open task manager, and on the process tab, right-click on vstudio.exe, and setting the priority to High or Above Normal. Everything in VideoStudio started to go pretty fast. One time I set it to Real-Time and it hung up on me, I guess that one's for dual cores or something.
Anyway, try setting vstudio.exe's priority to High, but make sure to turn off all other applications.
Anyway, try setting vstudio.exe's priority to High, but make sure to turn off all other applications.
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heinz-oz
Also make sure you have enough physical memory and your display does not use shared memory (on board video). From your descriptions given I would say your computer is not powerful enough for what you want to do. That doesn't necessarily stop you from creating video files on it, it will just need to be given the time to render your preview. Set your project settings to "High Quality Playback" as suggested previously. This will give your sytem the time it needs to create the preview file and for you to go and get a cup of coffee or whatever else tickles your fancy. Incidentally, once you have created the preview file and add something to your project or change something, the preview will happen a lot faster because the system is making use of the previously created preview and only renders the changes.
The only way to overcome this is to get a machine which is powerful enough to handle this real time. That calls for a fast CPU, HT or dual core and plenty of RAM.
The only way to overcome this is to get a machine which is powerful enough to handle this real time. That calls for a fast CPU, HT or dual core and plenty of RAM.
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Vidiot
Thanks for the help guys.
I did as suggested and set the playback to high quality, and also set the priority of VideoStudio to "High" in the task manager. This has helped a whole lot, although I still get small pauses when changing from one scene to another. Right now I have absolutely NO transistions, filters, audio, or anything else running. Just a serious of edited clips.
My system is a 3Ghz Athalon CPU with 2Gb of RAM and a 200Gb (7200 RPM) SATA hard drive with an NVIDIA GeForce 6600GT video card, so it should have plenty of horsepower for processing whatever I throw at it.
What "Background Services" do you recommend that I turn off? All other programs in the Task Manager applications window have been closed as well.
Thanks again for all the help.
Chris
I did as suggested and set the playback to high quality, and also set the priority of VideoStudio to "High" in the task manager. This has helped a whole lot, although I still get small pauses when changing from one scene to another. Right now I have absolutely NO transistions, filters, audio, or anything else running. Just a serious of edited clips.
My system is a 3Ghz Athalon CPU with 2Gb of RAM and a 200Gb (7200 RPM) SATA hard drive with an NVIDIA GeForce 6600GT video card, so it should have plenty of horsepower for processing whatever I throw at it.
What "Background Services" do you recommend that I turn off? All other programs in the Task Manager applications window have been closed as well.
Thanks again for all the help.
Chris
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Telgaladhion_Greyskye
Anti Virus, Firewall, PM software, what have you. Better yet, type 'msconfig' in the 'Run...' textbox, then go to the 'Start up' tab, then uncheck the non-system programs that automatically start when Windows starts. Click apply then restart your computer.
Have you already created a video file? Does it run smoothly or does it still freeze and stutter?
Have you already created a video file? Does it run smoothly or does it still freeze and stutter?
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Vidiot
Since I am new to this, I will need to figure out how to set up an output file and run it as a test.
On a second note, If I have an audio track running (background music), I get a slight audible "bump" or hiccup every time there is a scene change. Perhaps this is part of the poor playback quality in VS9 as well.
Thanks for all the help.
Chris
On a second note, If I have an audio track running (background music), I get a slight audible "bump" or hiccup every time there is a scene change. Perhaps this is part of the poor playback quality in VS9 as well.
Thanks for all the help.
Chris