sorry to resurrect the dead horse, but I found also a possible cure for the problem...

I got the 9950x3d and tuned my system this week, its always the same, chasing the cinebench points and all that stuff again...

So I pushed my undervolting hard, something like -30 for ccd0 -25 ccd1, system performed topnotch, also passed most of the stability benchmarks...BUT!

In MSFS2024 I started to get those noise cracklings and stutters...so I set back my settings to -20/-15 and behold everything is fine and perfect again...I can reproduce this behavior without problem.

So another Idea, check your undervolting if you have done one...don't use my numbers, every system is different.

McDan out

  

I'm still experiencing the issue, so no need to apologize for resurrecting this issue. Matter of fact the topic for this issue is quite alive over the Microsoft Flight Sim Asobo forums. No I did have my 5800 X3D undervolted -30 on all cores. I also tried it with no undervolt and completely stock and the issues unfortunately still is there. 

yeah I sure wish they would fix this issue.  Makes MSFS 2024 not very fun to fly.  And yes I have tired deleting NVIDA audio drivers cache etc.  still get them every flight at certain times.

On 4/22/2025 at 11:45 AM, Fielder said:

The issue definitely related to sound settings in MSFS Sounds options and other settings on your PC.

1 Make sure the same exact choice is chosen for both speakers and microphone in MSFS Sounds options page. Otherwise, sound popping is very likely.

2 Go to windows control panel and disable any sounds generator that you never use. Like for instance Nvidia sounds or your monitor sounds driver (if you never use them).

3 While you are there in control panel, check which default sound driver has been selected for Windows.

4 A sound card won't change anything. But when you install it, you may be doing 1 or 2 or 3 while installing, which makes you think that it was the new sound card which has cured the issue. But actually, a new sound card probably has the same issues as the built in sound driver.

(For me, 1 is the most likely culprit when this issue arises).

Fix number one cleared the issue for me. On 2020.

Another possible solution for this "dead horse". Yesterday I installed new GPU drivers and something went bad...I loaded into Japan Osaka and it was sound crackling and stutter fest...do mind, before my performance was smooth and very good. SU3

So I started to investigate, I found with gpu z, that my RTX4090 was running at PCIE 8x not 16x....I have no idea how it happend, I dont think it was the driver update, but anyway, after setting PCIE from Auto, back to 16x in my Bios, I was back at 16X 4.0 under load, and voila everthing back to normal...

just another thing to check...PCIE lanes usage.

McDan out

In my case, I solved my sound cracking and stutters when I stopped limiting my fps in RTSS and did it from MSFS.

Edited September 26, 2025Sep 26 by luis70

On 7/3/2025 at 7:27 PM, Seattle Simmer said:

Fix number one cleared the issue for me. On 2020.

Also fixed mine in 2024

On 4/15/2025 at 4:23 PM, WolverineHusky said:

I wonder if having BOTH Realtek and the Nvidia sound devices enabled causes issues (I noticed you have a 5090 and I have a 5080).  I went the opposite direction use Realtek but disabled nvidia sound devices.  But it seemed to work.

If one surfs the Internet, one will find references to MSFS 2024 sound stuttering and even a few CTDs that follow the stuttering. It is usually fixed by disabling additional audio device drivers that are not used like Realtek, Sonos, Soundmax, etc.. In addition, MSFS 2024 seems to have issues with certain Bluetooth audio devices, which could be disabled as a troubleshooting step.

4 hours ago, jabloomf1230 said:

If one surfs the Internet, one will find references to MSFS 2024 sound stuttering and even a few CTDs that follow the stuttering. It is usually fixed by disabling additional audio device drivers that are not used like Realtek, Sonos, Soundmax, etc.. In addition, MSFS 2024 seems to have issues with certain Bluetooth audio devices, which could be disabled as a troubleshooting step.

Nope personally I tried everything 'fix' including disabling sound devices apart from realtek and changing sound options in the sim to the actual sound device rather than default but still get the audio stutters. I have a 7800x3D, 64 gb ddr5 6000 c30 memory and a rtx 5090

I’ve been struggling with this issue for a long time, and the real challenge in solving it is that:

1. it happens randomly, not consistently — for example, I might complete 3-4 flights with no problems, then suddenly have the issue in 1-2 flights, then it disappears and comes back again;

2. it only occurs during flight (after takeoff, in cruise, or before landing).

What’s strange is that, for example, at Heathrow (IniBuilds) with lots of AI traffic, PSXT, and complex aircraft like the Fenix, PMDG, or IniBuilds A350, sometimes I don’t experience it at all. But after reaching a certain altitude, the problem appears and only goes away after landing (though I often shut everything down earlier out of frustration).

Recently, it has also happened with SU4 (sometimes yes, sometimes no).
My setup: Ryzen 7 7800X3D, RTX 4070Ti, 64 GB RAM.

I have observed this issue just recently with MSFS 2024. Seems to have arrived with SU3? At least, I wasn't aware of it with SU2 or earlier. Now it seems to appear more and more, but now I'm more sensible for it too. Someone said it may be a fps limiter issue?

Because it sometimes happens and sometimes does not, one big variable may be the inconsistent speed from the Microsoft servers (or maybe even your own ISP).

As I've already said, I have suspected Realtek software and Nahamic for a while and disabled these.

The only other thing I suspect is that it seems to happen when I have a lot of addon photogrammetry scenery in my community folder (though not always at the locations of those sceneries).

You can check RAM and VRAM usage in game bar (windows key and G) if you have it - again, it seems to crop up when VRAM usage in particular is getting close to the limit.

Updating BIOS, chipset, video and sound drivers may be worth doing.

Of course running the sim without any addons is always worth checking and trying to isolate which addon might be causing it, though that is a laborious process I have been through many times over the years.

A lot of things it could be but it could even be a bug in MSFS itself which may or may not ever be fixed.

Last resort is also a clean install of Windows, MSFS and all your drivers but that is the nuclear solution and even that may not work (as well as being a complete pain in the backside).

So many things to consider and try here, but it's somethimes a case of just methodically workinmg through them.

This is caused by short term main thread saturation. I believe that it is caused by the loading of terrain tiles and photogrammetry because the sim must quickly goto the network, download the new data and then display it. This new data load pushes the main thread over the edge and stutters occur which also manifests as loss of sound. It almost always occurs during view changes or fast slewing because those usually trigger rapid data loads.

The only solution is to increase the CPU headroom by reducing the amount of data that must be loaded at any given time. TLOD specifically is the most important setting because if TLOD is set low enough then the CPU always has headroom to load everything. A great test is to set TLOD to 50 and then slew at any speed anywhere. I can guarantee that if your main thread and FPS was previously good then your stutters will vanish.

One offending tool for this is AutoFPS because AutoFPS decreases TLOD on the ground which is great for FPS. However, AutoFPS then (optionally) increases TLOD with increased altitude versus current FPS. Even if FPS is stable, any increase in TLOD can push the main thread over edge during a rapid data load because only so much data can be loaded at once.

It's not a question of speed but a question of the millisecond availability of bandwidth. It's a common misconception that MSFS is highly reliant on CPU speed but this isn't really important anymore and even heavy overclocking gives very small gains nowadays. The huge 3D cache and increased data processing bandwidth is why the AMD X3D processors give such huge performance improvements in MSFS.

Basically, reduce your TLOD to a degree that works to stop those stutters in most situations. If you can't live with the visuals then unfortunately you will have to live with the stutters. 

Edited September 29, 2025Sep 29 by G MIDY

3 minutes ago, G MIDY said:

This is caused by short term main thread saturation. I believe that it is caused by the loading of terrain tiles and photogrammetry because the sim must quickly goto the network, download the new data and then display it. This new data load pushes the main thread over the edge and stutters occur which also manifests as loss of sound. It almost always occurs during view changes or fast slewing because those usually trigger rapid data loads.

The only solution is to increase the CPU headroom by reducing the amount of data that must be loaded at any given time. TLOD specifically is the most important setting because if TLOD is set low enough then the CPU always has headroom to load everything. A great test is to set TLOD to 50 and then slew at any speed anywhere. I can guarantee that if your main thread was previously good then your stutters will vanish but obviously visuals will suffer.

One offending tool for this is AutoFPS because AutoFPS decreases TLOD on the ground which is great for FPS. However, AutoFPS then (optionally of course) increases TLOD with increased altitude versus current FPS. However, even if FPS is stable, any increase in TLOD can push the main thread over edge during a rapid data load requirement because only so much data can be loaded at once.

It's not a question of speed but a question of the millisecond availability of bandwidth. It's a common misconception that MSFS is highly reliant on CPU speed but this isn't really important anymore and even heavy overclocking gives very small gains nowadays. The huge 3D cache and increased data processing bandwidth is why the AMD X3D processors give such huge performance improvements in MSFS.

Basically, reduce your TLOD, see what works and stops those stutters in most situations. If you can't live with the visuals then unfortunately you will have to live with the stutters. 

That seems to make sense and seems to be in line with what I experience.  If I encounter sound popping again, after doing all the things I mentioned above, I will see what effect a lower TLOD has.  I normally run at 200 (but have toyed with higher and lower settings) though some might think that a bit too high.

14 minutes ago, cianpars said:

That seems to make sense and seems to be in line with what I experience.  If I encounter sound popping again, after doing all the things I mentioned above, I will see what effect a lower TLOD has.  I normally run at 200 (but have toyed with higher and lower settings) though some might think that a bit too high.

200 is unfortunately very high in my opinion. Add in a complex aircraft and it's just inevitable that stutters will occur regardless of how strong the hardware setup is. FPS may be good and stable though once everything is actually loaded but loading something and then rendering it are two different things.

Think of it like you need to fill a bucket with water, doing it faster is irrelevant if you have more water than the bucket can hold. The only solution is to fill the bucket with less water (lower TLOD) or a bigger bucket (new CPU with lots of cache).

I know it's visually terrible but experiment with 50 TLOD and see what happens, then gradually increase it until you get problems. If you use something like AutoFPS then this experimentation can be used to guide maximum settings.

Edited September 29, 2025Sep 29 by G MIDY