BTW, Microsoft has listed an audio bug in the Known Issues section of the latest Windows 10 version 1903 update
(KB4515384). I'm assuming you are using Windows 10 ?
The bug can result in audio being quieter in certain games, and MS has provided a workaround which involves disabling multi-channel audio in the game(s), as well as disabling multi-channel/virtual surround audio in any third party audio control panels, until a fix can be issued later this month.
Microsoft has also released an
Update that addresses a problem with USB audio 2.0 multi-channel microphones. If Windows detects that you have such a device, the Update will download via Windows Updates.