Overwatch Audio Stuttering

Loldude

Distinguished
Mar 18, 2015
16
0
18,510
Hey, recently I've started experiencing stuttering while playing Overwatch.
You can hear a buzzing electricity sound when the stutter occurs (usually for half a second to two seconds, either on my headphones or directly from my speakers).
It seems like certain sounds in game cause the stutter for some reason. Like, the stuttering does not occur when there are no sounds present, but when some sounds are present it does occur.
The more I play the more stuttering there is for the same period of time. The more sounds there are in the same time, the stronger the buzzing stutter sound.
Could it be my motherboard's on-board sound chip? It's a VIA VT2021 codec sound chip.

Currently I've tried:
* Checking BIOS updates (I have the latest stable version)
* Updating my Graphics drivers to the latest ones
* Migrating the game into my SSD
* Disabling Dolby Atmos in game sound effect
* Disabling Nvidia GeForce Experience / Share services
* Checking Windows Update
* Lowering the audio format to 16 bit 48 KHz
* Disabling sound enhancements (which I don't use).
* Reinstalling the VIA Windows 10 HD Audio driver (to a different version)

Actual footage of the stuttering occuring:
[video="https://www.youtube.com/watch?v=F-lndDXfp8g"][/video]
it is quite slight, but you can see frames are being dropped / frozen when the stuttering occurs (right before I die for the last time in the video). Also, the in-game frame rate counter shows the frame rate is not stable 120 (as it should be for the low settings and my more than capable rig).

MSI AfterBurner logs:
https://image.ibb.co/cQRXKz/stuttering.jpg

My current setup is:
Gigabyte GA-H77M-D3H Motherboard
Intel Core i5 3570 @3.8GHz (stock clock) CPU
Gigabyte GeForce GTX 1060 6GB Windforce @ 1911 MHz (stock clock) GPU
HyperX Fury 2x8 GB @1600 MHz RAM
Kingston SA400 SSD 128 GB (47 GB free) - Both Overwatch and OS are installed here
Windows 10 Pro, 64 bit.

I'm trying here because I doubt Overwatch support would be of any help, from past experiences.
Is there any more information I can provide? Can anyone see a solution to my problem?

Huge thanks in advance!
 

Loldude

Distinguished
Mar 18, 2015
16
0
18,510
The problem appeared to be the physical connection of the 3.5 mm Audio Jack in the back of my PC.
After fondling around with it, connecting my headphones / speakers to the front jack and testing out, I found out that this caused the issue.
The connection was simply poor, and not in place. I've reconnected the cable to the back audio jack, this time making sure it is in place and does not band, and the problem seemed to be solved.