Image is Jerky in Vegas Pro 15

david-g6114 wrote on 9/20/2017, 3:40 PM

I'm having major image jerkiness working with Sony Vegas pro 15. I have changed the viewing settings to lower res and I have even made proxy files of the footage in the timeline. This seems to work initially yet as soon as I start doing any actual editing (i.e. adjust brightness/contrast, pan/crop etc.), the image goes right back to major jerkiness. Any remedies? Thanks!

Comments

OldSmoke wrote on 9/20/2017, 3:46 PM

search for so4compund.dll in this forum and see if that helps.

Proud owner of Sony Vegas Pro 7, 8, 9, 10, 11, 12 & 13 and now Magix VP15&16.

System Spec.:
Motherboard: ASUS X299 Prime-A

Ram: G.Skill 4x8GB DDR4 2666 XMP

CPU: i7-9800x @ 4.6GHz (custom water cooling system)
GPU: 1x AMD Vega Pro Frontier Edition (water cooled)
Hard drives: System Samsung 970Pro NVME, AV-Projects 1TB (4x Intel P7600 512GB VROC), 4x 2.5" Hotswap bays, 1x 3.5" Hotswap Bay, 1x LG BluRay Burner

PSU: Corsair 1200W
Monitor: 2x Dell Ultrasharp U2713HM (2560x1440)

Dee wrote on 9/20/2017, 3:57 PM

Do you have a GPU installed and is it setup in VEGAS' Options->Preferences->Video tab?

david-g6114 wrote on 9/20/2017, 4:16 PM

Thanks for the responses. It says that the GPU Acceleration of Video Processing is turned off. I take it I'd want that on?

Dee wrote on 9/20/2017, 4:25 PM

Assuming you have a GPU, yes, that will improve VEGAS' processing power.

david-g6114 wrote on 9/20/2017, 4:28 PM

I know my computer does have a graphics card (which I replaced about a year ago. Is that what you are referring to?

Dee wrote on 9/20/2017, 4:51 PM

Depending on how old your system is and that particular graphics card, you may. It would be listed in the drop down. Your performance may also be dictated by the video codec, file format, and video frame resolution being used.

david-g6114 wrote on 9/20/2017, 5:00 PM

It is an AMD Radeon HD 6970M, Chip type: ATI display adapter (0x6720), DAC type: Internal DAC (400MHz), Total Memory: 4095 MB

david-g6114 wrote on 9/20/2017, 5:38 PM

I also just tried to disable the so4compound.dll but that hasn't helped.

fr0sty wrote on 9/20/2017, 5:45 PM

That GPU may help with timeline performance, try to enable it in the vegas video settings menu and see if it helps. Make sure to go to AMD's website and download the most recent drivers for your GPU.

Make sure you are in preview mode, auto resolution. Maybe even drop to draft.

That said, some effects are going to drain your system no matter what, especially if you have an older system. If you're shooting 4K video and applying effects to it, and using an older CPU only or an older CPU with an older GPU, you're going to get slowdown on timeline playback once you start dropping effects into the mix. To see full speed previews, you can try to do a dynamic RAM preview. That will pre-render whatever portion of the video you have selected as the loop region into RAM and you can preview it full speed from there.

What resolution and format are the clips you are editing, and what are your system specs? What effects are you applying that are causing the slowdown? What are your project settings set at?

Last changed by fr0sty on 9/20/2017, 5:49 PM, changed a total of 4 times.

Systems:

Desktop

AMD Ryzen 7 1800x 8 core 16 thread at stock speed

64GB 3000mhz DDR4

Geforce RTX 3090

Windows 10

Laptop:

ASUS Zenbook Pro Duo 32GB (9980HK CPU, RTX 2060 GPU, dual 4K touch screens, main one OLED HDR)

NickHope wrote on 9/20/2017, 9:40 PM

https://www.vegascreativesoftware.info/us/forum/faq-how-can-i-make-my-video-preview-play-smoothly-in-vegas-pro--104624/