1 hour ago, cianpars said:

I've already done 1 and 2 but will try 3 if the popping returns (which I'm sure it will).  I'm not even sure if anyone realy knows what causes these stuters other than suspecting server and/or ISP performance.  Deleting the rolling cache and letting it rebuild appears to have helped some and I also ecall a remark about possibly reducing the rolling cache to its 16 Gb default as suggestions.  I also think it might be a good idea to purge the Nvidia and shader caches from time to time.  Thanks for your suggestions though.

I suspect that if anyone asked MS/ASOBO, they would probably say "we can't replicate the issue" and sweep it under the carpet.

Can anyone on SU4 confirm whether the issue still persists in the beta?

Hardly ever. The only times I've noticed it in the past was in high PG area where my TLOD was too high and too much traffic. That was a bit ago but it only happened to me a few times since 2024 release. So, 3 times in the last year? Including 1 of those 3 a few weeks ago in SU4 beta. Odd stutter-pops happened to me 2020 as well and more often. Bugs and quirks happen to me in other sims as well. 

The beta is good just be mindful of your settings. Just know that its a beta and your results may vary. My results are great. A smooth 70fps with FG, gsync and taa in 2k widescreen and all of my apps are working. Traffic, batc, gsx, raas, atmos, active sky.....

Just remember that some plane developers will not update their planes for su4 BETA until its fully released. 

Possibly some more evidence.  Not a stutter or a pop all day, but this evening between 6.30 pm and 7.00 pm which is peak time for the internet, msfs2024 giving me a lot of sound popping, though not quite as much as usual.  Speedtest is reporting my download speed of 148.2 and a ping of 9 ms, so it doesn't look like an issue with my ISP, more like the Azure servers can't cope adequately during periods of peak demand, I would suggest.

48 minutes ago, cianpars said:

Possibly some more evidence.  Not a stutter or a pop all day, but this evening between 6.30 pm and 7.00 pm which is peak time for the internet, msfs2024 giving me a lot of sound popping, though not quite as much as usual.  Speedtest is reporting my download speed of 148.2 and a ping of 9 ms, so it doesn't look like an issue with my ISP, more like the Azure servers can't cope adequately during periods of peak demand, I would suggest.

I've heard this several times: their servers loading "stuff" in as you're flying, especially in high PG areas. I bet it has nothing to do with your setup, sim, settings or internet. Turning some settings down like TLOD should help in these areas with a higher load. 

1 hour ago, Sonosusto said:

I've heard this several times: their servers loading "stuff" in as you're flying, especially in high PG areas. I bet it has nothing to do with your setup, sim, settings or internet. Turning some settings down like TLOD should help in these areas with a higher load. 

I guess TLOD and texture resolution turned down might help, but really the servers should be up to the job all of the time.  We shouldn't have to be turning down our settings only when the server load is high should we?  The problem is that once you get used to settings at a certain level, you lose a lot of the enjoyment when you have to turn them down - especially when you know your system is up to the job.

46 minutes ago, cianpars said:

I guess TLOD and texture resolution turned down might help, but really the servers should be up to the job all of the time.  We shouldn't have to be turning down our settings only when the server load is high should we?  The problem is that once you get used to settings at a certain level, you lose a lot of the enjoyment when you have to turn them down - especially when you know your system is up to the job.

Yeah, me too. I use autofps (amazing) that makes changes to the TLOD on your climb/descent for you on the fly (pun intended). Having it kept lower on/near the ground makes a marked difference in performance. Especially in an airliner that has a ton of working processes.

12 hours ago, cianpars said:

I guess TLOD and texture resolution turned down might help, but really the servers should be up to the job all of the time.  We shouldn't have to be turning down our settings only when the server load is high should we?  The problem is that once you get used to settings at a certain level, you lose a lot of the enjoyment when you have to turn them down - especially when you know your system is up to the job.

Rest assured that I will not ever be turning my settings down. I work out what satisfies my requirements, and then stick with it. Based on the performance that I was getting in MSFS 2020 with DX12 mode activated on my current PC, I will be expecting BIG things from MSFS 2024 with my new PC @ 1080p resolution.

Edited November 20, 2025Nov 20 by Christopher Low

On 10/28/2025 at 4:41 PM, mpo910 said:

I got rid of the sound crackling by:

1) Disabling ALL NOT used Audio Drivers via the windows Device manager AND
2) Uninstall the realtek audio driver as well AND
3) Set the Audio Device in the sim to the used one and NOT to Default! AND
4) Set the Audio Device in the System Sound options from windows to the used output device and NOT to default

I use a Bluetooth headphone with DTS surround sounds and it is amazing.

Since I did that mentioned above, I got rid of every crackling and stuttering, with my 4090 AND 5090 cards. Without these settings I can reproduce the issue and "call the crackling back to my system". 

The Test and Tip came from a user over at MSFS Forums who had found this out and it worked for him and several others as well.....I do not recall the exact topic name, but it may be the one with the most posts about this......redicoulous how many users have these issues! Asobo need to take action I think.

Marcus

I did this but I installed the realtek digital audio driver to use SPDIF (Optical) it sends the raw output to my speakers and then my speakers process it vs. Having the cpu handle it. Been good ever since 

4 hours ago, TheFalXon said:

I did this but I installed the realtek digital audio driver to use SPDIF (Optical) it sends the raw output to my speakers and then my speakers process it vs. Having the cpu handle it. Been good ever since 

Great.  I am genuinely pleased for you, but the vast majority of users won't be able to use this solution - we need a proper solution for everyone and based on what you have said regarding the cpu, maybe the audio needs to be put on a separate thread.

5 hours ago, TheFalXon said:

I did this but I installed the realtek digital audio driver to use SPDIF (Optical) it sends the raw output to my speakers and then my speakers process it vs. Having the cpu handle it. Been good ever since 

Can you explain this further?  My sound device is showing in sound settings as 'Realtek Digital Output', its on board audio.  Connect to a soundbar via an optical cable. The last batch of tweaks I did has meant no audio crackling for the past few flights.  Not tried the latest SU beta released this evening though

8 hours ago, TheFalXon said:

use SPDIF (Optical)

No matter wether I run the audio through via SPDIF opt. to a pro DA converter or just use the board's realtek drivers:

Sometimes SU4b stutters, sometimes not. It's another inconsistent thing in the sim.

I have the impression that a lowered windows samplerate (anything over 16bit / 44.1 kHz = MORE sound stutters on my sys) helps. 

Edited November 20, 2025Nov 20 by MaGer1965

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Posted October 27

I did some testing.

Fenix A320 flying around London a big PG area.

When using Auto FPS if I allow the TLOD to get up into the 400 area I see red spikes more agressively on the main thread and will then see a big fat one resulting in the audio pop and stutter. This happens every 60 to 90 seconds sometimes longer but it happens, I also see a red spike in the download box at the same time.

I ticked on the box that reduces the TLOD to 200 and now the red spikes are much occuring much less and I dont get the big one anymore so no audio pops now.. I managed a whole circumfrence of London with no pops. There must be some correlation between downloading more information and the majn thread getting overwhelmed and it causes that stutter.

Will test more but wondered if anyone else has noticed this correlation?

 

So Sonosuto is totally correct... I posted this 3 weeks ago.. I have tested the PMDG/Fenix extenisvely.. If I use Auto FPS and keeo my TLOD to 200 or below in a PG Area. I fly between Glasgow and Edinburgh as a test I dont get pops but if it creeps up to 400 I get a pop every once in a while which really breaks the emersion for me... there is something that main thread can handle at a certain level with the PG areas.

If you are having issues with this please try a test where you lower your to TLOD to 200 or below.

 

Asobo really need to address this problem as its a streaming issue.

 

H

 

So I spent some time last night searching the forums, Reddit, and FB groups regarding this issue and the conclusion I came to was that users on 23H2 had no stutters. I decided to do a fresh install and lucky for me my Win11 build was 23H2 and to my amazement the stutters were completely gone. Last night I did multiple flights, not a single stutter. Same thing today: no stutters after the SU4 update and even the micro stutters I was dealing with were gone.

Now, of course, staying on 23H2 will be tricky because MS ended support but my PC is strictly for MSFS so I can block the updates. It now makes sense why they haven't addressed this issue because the problem might be more complex than just a server issue; it's likely related to the way 24H2 and 25H2 manage the CPU. I'll test some more but for now I've resolved my stutter issues.

ill be amazed if they actually acknowlegde it.  Ive had again this morning out of GVA, really bad.

it will be the same as the issue P3D had with bad BGL data back in the day (with gsx) ,

P3D were no way ever going to admit it (to the big military customers) that they had bad data, that effects sales and reputation, and hours of man hours to try and find it.  To this day they never  fixed it.  It was best left ignored and not admitted.

Aboso wont admit theres a nasty sound/ op issue, even though theres pages upon pages about it on the forumns. 

Best thing for them to do is ignore it and hope it goes away,  (this community is so easily led anyways) so in 6 months time it will be "oh yeah thats normal it pops all the time"  we are not far off that mentality now to be fair. Read through the posts, people are quite happy "just to accept it"  Weve been down this road before.

 

Edited November 21, 2025Nov 21 by fluffyflops

Seems latest NVDIA Hot fix has stopped my audio stutters on WIN11 25H2

22 minutes ago, guenseli said:

Seems latest NVDIA Hot fix has stopped my audio stutters on WIN11 25H2

which driver is this please.  Id be very interested to know,  

Im guessing 581.94 ?

thanks alot
 

Edited November 21, 2025Nov 21 by fluffyflops