Vegas Pro LAGGING and SKIPPING frames (FOR THE LOVE OF GOD, HELP ME!)

Bluelade wrote on 4/27/2018, 9:42 PM

I am at my breaking point with this BS. For months now, I've been dealing with this lagging preview issue that a lot of people seem to be dealing with. It's gotten to be so unbearable to the point where I've just decided to remove the program from my computer entirely. I've searched forums, including on here, and I've searched for YouTube videos to help me solve this problem. NONE OF WHICH HAVE HELPED IN THE SLIGHTEST! The forums just beat around the bush and never give you a straight answer. It's always followed by pointless, irrelevant questions from other users. And the YouTube videos always claim to help you SOLVE the issue when in reality they don't even know what the hell they're talking about. Every single video I have seen is titled "How to SOLVE preview LAG in SONY VEGAS PRO <version>!", but when you watch the video, they just tell you how to REDUCE the lag, not solve it. So, here I am. I'm looking for an intelligent individual who isn't gonna waste my time and tell me I need to change my preview quality to "AUTO". I just need to know why this is happening, what I can do to fix it, and I'll be on my way. I also recently upgraded my RAM from 16GB to 32GB and that hasn't helped as far as I can tell. Also, I forgot to mention that it does well with .mp4 files, but if I add a .mov, .avi, or pretty much any other video file that isn't .mp4, it will start skipping frames. Also, any time there is something sudden, like a quick flash transition, it completely skips over it and starts acting stupid. Another question I have is why Sony would like people to pay $500 for a program that can't even do what it's meant to do? Seems pretty dumb.

Anyway, help would be greatly appreciated!

BTW, this issue occurs on every single Vegas Pro version.

SPECS:

Processor: Intel Core i5-6400

Memory (RAM): DDR4 32GB (XPG)

Graphics: Nvidia GeForce GTX 1060 6GB

Storage: HDD 1TB / SSD 512GB

OS: Windows 10

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Comments

Riggan wrote on 2/9/2019, 8:49 PM

If anyone else should happen to find this thread and experiencing ridiculous video preview lag using a high-powered PC, I solved it by doing this, as outlined in one of the help threads linked above;

If the troublesome files are getting decoded by so4compoundplug.dll then you can try disabling it as follows:

Hold down the SHIFT key while opening Options > Preferences
Click the Internal tab
In the field "Show only pref containing:" file type "So4" without the quotes
Set "Enable So4 Compound Reader for AVC/M2TS" to FALSE.
OK > Restart

This solved my issue. The So4 Compound Reader was making my preview lag so bad I couldn't properly test my edits/transitions at all. 'Made it look like I was trying to run basic 2K video on a Win98 machine. I knew it wasn't my PC. Editing with an i7-8700K/GTX 1080 Ti/32GB RAM. If you're in a similar situation; it's NOT your system. It's Vegas. Try the method above. Good luck!

Kinvermark wrote on 2/9/2019, 9:19 PM

Terrible advice!

It's like saying " I fixed MY disease by doing X; you should do X too." even though you haven't even asked the patient what disease they have.

Also, you are way behind the times with this OLD so4compoundplug.dll workaround. Vegas team implemented blacklist, etc. several builds ago so it is not necessary to do this.

Musicvid wrote on 2/10/2019, 3:10 AM

Not to mention the thread is nearly a year old, and Bluelade hasn't been back since.

Riggan wrote on 2/16/2019, 5:43 PM

Terrible advice!

It's like saying " I fixed MY disease by doing X; you should do X too." even though you haven't even asked the patient what disease they have.

Also, you are way behind the times with this OLD so4compoundplug.dll workaround. Vegas team implemented blacklist, etc. several builds ago so it is not necessary to do this.

Yeah, sharing something that actually WORKED is terrible advice. Geez, how ignorant can you be (rhetorical question that doesn't need an answer). And obviously it WAS necessary to do this, as again, it WORKED, when nothing else would.

Riggan wrote on 2/16/2019, 5:45 PM

Not to mention the thread is nearly a year old, and Bluelade hasn't been back since.

Might wanna re-read the very first sentence of my post.

I found this thread by Googling the issue. Not out of the realm of possibly that, y'know, someone else may do the same.

fan-boy wrote on 2/16/2019, 9:12 PM

@Bluelade

Test your machine like this at 1920 x 1080 29.97 playback on the time line . didn't say if you were trying 4k , so guessing , you are doing 1080p stuff . I can do 1080 using Project properties 32 bit Full , gamma 2.2222 with Transformation OFF . with or without GPU , it plays time line perfect . Uses more CPU when GPU is OFF . CPU clock here , AMD A10 APU running at 1.7 Ghz with Soc R7 graphics . using standard mechanical hard drive .

Open task Manager to view CPU and GPU load , in windows 10 . set task manager to be "Always On Top" to keep it in view , on top of Vegas .

here , CPU only mode : playing the above .uncompressed avi video , CPU runs at about 55 % with GPU showing about 10 % with no additional GPU memory being used .

with GPU enabled ( requires restart of Vegas ) , CPU runs at about 35% with GPU at 20 % and with about 1.3 Gig of GPU memory resource being accessed . This can also run GPU Accelerated Video FX plugins on top of that 1080 uncompressed video ( that is impressive to see ) .

get a clip that does work , regardless of it's resolution . Render out 1 minute of it , with audio , as "Video For Windows" .AVI . Choose Customize Template , and select "Uncompressed" Codec .

That .avi should play perfect for you on the time line . If it does not , then try this :

Options-->preferences-->Video Tab , to use all CPU cores keep core count at 16 . just below that is the GPU box . does Vegas detect your Video Card ? I have the Dynamic RAM set to 2000 , 2 gig , but Dynamic RAM does not affect time line performance I also assume you have windows power management to allow any program such as Vegas , to Throttle all CPU cores to 100 % ( Vegas will throttle all cores to 100 % , I have seen it )

your machine should be able to play the above test , with or without GPU ..

if your machine can not play the above video ( No FX applied ) , then your base machine may have issues .

if your machine does play the above test perfectly , then your source videos may have encoding that Vegas does not like . or , Source footage with excessively large bitrates can choke time line performance .

set the Viewer screen to Preview-->Auto , also "scale to fit screen" and "simulate aspect ratio" cause performance slow downs . do NOT use Scale to fit and do NOT use Simulate aspect ratio .

the above 1 minute 1920 x 1080 uncompressed 24 bit .avi video is about 10 Gig bytes . The hard drive here runs at about 110 M Bytes sec . as viewed in Task Manager while playing ( about 75 % capacity ) . To play a 10 GB file in 1 minute is about 160 MBps ,about 1.3 Gbps . That's pretty much it for this hard drives capability.

To test the machines system memory performance , do a "Build Dynamic RAM Preview" render any short segment that is impossible to play smoothly on the time line ( usually where many FX have been applied ) . Playback occurs out of system memory , and should be perfectly smooth . Also useful to preview transitions .

Grazie wrote on 2/16/2019, 9:20 PM

@fan-boy Your Post is very helpful and should be made a Stcky.