Hi there,
can anybody please help? I have frequent sound and video stutters in msfs, and it is absolutely unplayable because the fricking sound stutter is driving me crazy. Even on the lowest settings, stutters still occur. I have a RTX 4070 super, a ryzen 7 7800x3d (overclocked by 0.2ghz with amd software) and 32GB of ram overclocked with XMP to 6000 MHZ. The stutterfest starts 5 minutes after getting airborne, and on approach at like 1000 ft the stuttering magically stops. I have 1 GBIT network. My rolling cache size is 32GB. I use ISLC and lossless scaling.
I am so ■■■■ frustated with this issue, i tried everything. Please help!
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Are you using the external lossless scaling app in SU2 beta? Have you tried wiithout that and any other externalities?
Do you have the same happening on the trailer videos at start up? I know I have never had stutters or crackling in the sound on startup before, but SU 2 beta I do now. And it appears to be happening when the system is trying to do any write activity.
Are the Nvidia HD Audio drivers deactivated? If no, do that. If unsure, recheck as they get active again after a driver update.
Also, did you read the release notes, especially the warning that performance might be worse on that beta due to added telemetry? This may lead to more crackling too.
What happens if you uninstall these items?
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Which version are you running ?
Try deleting rolling cache before sim start
Start sim
Wait till loaded
Go to online settings and set rolling cache to 20gb or higher just to test
Quit the sim
Restart the sim
Fly …
Still stuttering?
In my case the stutter is gone AS LONG as the rolling cache is NOT filled…as soon as it gets filled and when starting a flight in a location I not bin before with the current rolling cache…it starts cracking and stuttering
The issue is, that as soon as the rolling cache is full with data, and sim starts overwriting the FILLED rolling cache with new data (FROM areas you have not any data in rolling cache) the crackle and stuttering begins
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I find the total opposite.
The Realtek HD audio drivers have always caused this cracking, way back to the original FS2020. Removing them and installing the Nvidia HD drivers in their place gets rid of it.
It goes without saying you must only have one set of audio drivers installed, and remember the Nvidia app will always install the HD audio unless you tell it otherwise.
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That’s the other way around as basically both conflict with each other 
No, I mean having the Realtek ones alone installed causes the crackling. Uninstalling those and replacing them with the Nvidia ones solves the problem.
I then said people need to be careful they’re not inadvertently installing two audio drivers at the same time when updating their GPU drivers as it happens automatically, which I think is the point you were making. I was simply saying that the Realtek drivers on their own do actually cause crackling, the Nvidia drivers on their own don’t.
Hope that makes sense!
Try this and please let me know if this works for you as well
I know what you meant, I only tried to phrase the reason behind that
You can also disable the onboard Realtek HD Audio device which is what I did as I use a Sound Blaster Z PCIe card.
That one does not conflict with the Nvidia HD Audio drivers at all, so I can skip the step of disabling.
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I have deactivated them, im not on the beta, and i still have audio stutters. Even without ISLC and Lossless scaling (audio stutters are driving me crazy) Btw, averaging around 10 FPS with High settings
is your vram full. This is a known problem and su2 is not addressing it.
I know this will hurt. But, just try to disable your overclock.
MSFS is very sensitive to PBO overclocking. My system is totaly stable on all tests, but only msfs starts to stutter with sound crackling. As soon as I disable PBO, crackling is gone.
I’m not saying that this is a solution. Something is wrong here in engine. No other game has this problems with multiple sound devices, minor overclocks.