You very likely have either a headset who has surround, emulates surround, or has a setting on your computer that attempts to emulate surround.
Open up your sound control panel and click configure speakers.
![[Linked Image]](https://i.imgur.com/adUnqTs.png)
Make sure it's set to stereo.
![[Linked Image]](https://i.imgur.com/hlXrVYX.png)
If that doesn't work, check which brand and model your headset it, and make sure its drivers is up to date, and check any thirdparty software it might have come with.