Video Stutters In "Instant Preview" Mode.

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michaeltee
Posts: 528
Joined: Wed Aug 17, 2005 5:19 pm
operating_system: Windows 10
System_Drive: C
32bit or 64bit: 64 Bit
motherboard: HP 82F1
processor: Intel Core I5 7400 3 GHz
ram: 16 GB DC
Video Card: Intel HD Graphics 630
sound_card: Realtek High Definition Audio
Hard_Drive_Capacity: 2TB Hybrid
Monitor/Display Make & Model: Samsung S24D300
Corel programs: Installed: PS Pro 2021, VS Ultimate 2020
Location: California, USA

Video Stutters In "Instant Preview" Mode.

Post by michaeltee »

Hi,

If my timeline consists of **only** video clips and/or images, playback in "Instant Preview" mode is fairly smooth and fluid however as soon as I add any transitions, preview playback becomes very choppy (looking as if frames are skipped). Obviously this makes it difficult to evaluate the flow of my movie before outputting to file or disc.

Yes, I realize there is a simple workaround (switching to "High Quality Preview" mode) but unfortunately this requires rendering which is time consuming.

Based on the experiences I've had with several other consumer level editing programs over the last few years, this preview "stuttering" problem seems unusual. I'm just wondering if: 1) Is this a common issue with VideoStudio 9, and 2) Does anyone have any suggestions?

Of course none of this effects the output quality (which BTW is quite good) but it's definitely an annoyance. Any suggestions would be appreciated :-)

My PC:

Sony VAIO PCV-RS530G
Pentium 4 HT @ 3.0 Ghz
2 Gig DDR Memory
ATI Radeon 9550 (256mb)

-Mike
THoff

Post by THoff »

Transitions and effects / filters can be very CPU-intensive and can cause the skipping you described. There's not a whole lot you can do about it. As you noted, the High-Quality Preview is time consuming exactly because it does take the time to render everything the way it will look in the final video without taking shortcuts or skipping frames when it falls behind.

Unfortunately, we can't have our cake and eat it, too.
paul85
Posts: 35
Joined: Sun Aug 14, 2005 9:02 pm
Location: San Jose, CA

Try defragmenting

Post by paul85 »

This sounds like the problem I'm having. I have tried de-fragging the hard disk upon which I am storing my edited work. The first de-fragging took quite a while, but subsquent ones are brief (much less time-consuming than rendering).

This seems rather makeshift to me, but most workarounds tend to be a bit makeshift, I guess.

If there is a drawback to repeated defragging, I'd appreciate knowing about it in case I am doing damage of which I'm unaware.
User avatar
michaeltee
Posts: 528
Joined: Wed Aug 17, 2005 5:19 pm
operating_system: Windows 10
System_Drive: C
32bit or 64bit: 64 Bit
motherboard: HP 82F1
processor: Intel Core I5 7400 3 GHz
ram: 16 GB DC
Video Card: Intel HD Graphics 630
sound_card: Realtek High Definition Audio
Hard_Drive_Capacity: 2TB Hybrid
Monitor/Display Make & Model: Samsung S24D300
Corel programs: Installed: PS Pro 2021, VS Ultimate 2020
Location: California, USA

Post by michaeltee »

THoff wrote:Transitions and effects / filters can be very CPU-intensive and can cause the skipping you described. There's not a whole lot you can do about it. As you noted, the High-Quality Preview is time consuming exactly because it does take the time to render everything the way it will look in the final video without taking shortcuts or skipping frames when it falls behind.

Unfortunately, we can't have our cake and eat it, too.
Thanks for the reply! Sounds like a reasonable explanation. I use a realtime CPU meter in my system tray specifically for monitoring resource intensive applications and I notice that an "instant preview" (with or without transition effects) runs my CPU @ nearly 80% on average (much higher than I would have expected). In any case, it's quite possible that transitions, filters, etc., are momentarily peaking the CPU up to 100% which could account for why the preview stuttering only occurs when effects are used.
User avatar
michaeltee
Posts: 528
Joined: Wed Aug 17, 2005 5:19 pm
operating_system: Windows 10
System_Drive: C
32bit or 64bit: 64 Bit
motherboard: HP 82F1
processor: Intel Core I5 7400 3 GHz
ram: 16 GB DC
Video Card: Intel HD Graphics 630
sound_card: Realtek High Definition Audio
Hard_Drive_Capacity: 2TB Hybrid
Monitor/Display Make & Model: Samsung S24D300
Corel programs: Installed: PS Pro 2021, VS Ultimate 2020
Location: California, USA

Re: Try defragmenting

Post by michaeltee »

paul85 wrote:This sounds like the problem I'm having. I have tried de-fragging the hard disk upon which I am storing my edited work. The first de-fragging took quite a while, but subsquent ones are brief (much less time-consuming than rendering).

This seems rather makeshift to me, but most workarounds tend to be a bit makeshift, I guess.

If there is a drawback to repeated defragging, I'd appreciate knowing about it in case I am doing damage of which I'm unaware.
Paul, as far as I know there are no disadvantages to frequent defragging. If you feel it's helping, I might suggest you check out a trial version of DisKeeper 9.0 which is much faster than the integrated Windows defrag and has some great scheduling options such as the ability to **automatically** defrag as a background process when you're not running other applications. Basically this keeps your HDD file system in good shape without interfering while you're editing.

-Mike
paul85
Posts: 35
Joined: Sun Aug 14, 2005 9:02 pm
Location: San Jose, CA

success with stutter. Now frequent crashes.

Post by paul85 »

Michael... Thanks so much for the tip regarding Diskeeper. I have downloaded the trial version, and the stuttering disappeared (except for an occasional temporary stutter in certain clips).

I am now experiencing frequent crashing. My solution is to push "save" after every two or three edits that I make. VideoStudio 9 and/or my computer do not now have much tolerance for multiple tweaking of my project. However, it reopens quickly, and I only have my most recent "tweak" to repeat.

Paul
User avatar
michaeltee
Posts: 528
Joined: Wed Aug 17, 2005 5:19 pm
operating_system: Windows 10
System_Drive: C
32bit or 64bit: 64 Bit
motherboard: HP 82F1
processor: Intel Core I5 7400 3 GHz
ram: 16 GB DC
Video Card: Intel HD Graphics 630
sound_card: Realtek High Definition Audio
Hard_Drive_Capacity: 2TB Hybrid
Monitor/Display Make & Model: Samsung S24D300
Corel programs: Installed: PS Pro 2021, VS Ultimate 2020
Location: California, USA

Re: success with stutter. Now frequent crashes.

Post by michaeltee »

paul85 wrote:Michael... Thanks so much for the tip regarding Diskeeper. I have downloaded the trial version, and the stuttering disappeared (except for an occasional temporary stutter in certain clips).

I am now experiencing frequent crashing. My solution is to push "save" after every two or three edits that I make. VideoStudio 9 and/or my computer do not now have much tolerance for multiple tweaking of my project. However, it reopens quickly, and I only have my most recent "tweak" to repeat.

Paul
Paul, glad to hear Diskeeper helped! In case you haven't had a chance to fully explore the program's options, go to "change your settings" and click on the "set defragmentation priority" button. This will bring up a window where you can enable "I/O Smart" which is the feature that allows Diskeeper to sense when you are not running other applications and automatically defrag your selected drives.

As far as your VS9 crashing problem goes, I can make a few general suggestions. This is all general stuff that you may have already considered. Even those with good computer knowledge can sometimes (myself included!) overlook the obvious :-)

VS9 definitely requires a good chunk of system resources during certain operations. This is true of most video editing applications and the "more is better" rule usually applies to your system's resources regardless of what the software developer states as the program's minimum requirements.

Do you have enough memory? Adding additional DDR/RAM is often the easiest way to improve performance when running demanding applications. You can use Windows "Task Manager" to see how your existing memory is being utilized.

Along those same lines, if appropriate, you might also consider increasing the size of your Windows "swap file" and/or moving it to another drive or partition other than "C". Info on how to do this is available on Microsoft's support site.

Do you have adequate hard disc space in VS9's default temp and output directories? If not, you can change the directory locations to another drive or partition where more space is available.

Also consider removing infrequently used video applications that might be causing minor conflicts with VS9.

Lastly, do you scan your system for spyware/adware/malware on a regular basis? Although not directly related to VS9, these nasty applications can reduce your system's performance and create MANY (seemingly unrelated) problems that can't be addressed until removed or quarantined by a competent spyware app such as Sunbelt's "CounterSpy", Webroot "Spy Sweeper" or even freebie apps such as Microsoft's beta spyware tool (formerly known as "Giant AntiSpyware") or "Ad-Aware" and "SpywareBlaster".

-Mike
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