Do you have the same issue if you follow the OP’s steps to reproduce it?
Yes
Provide extra information to complete the original description of the issue:
Aural alerts for altitude callouts are inaudible, and minimums callouts are barely audible. There is no option to select between female and male aural alerts in the appropriate menu. Traffic callouts and autopilot callouts work well and are at adequate volume, but could be louder.
Are you using DX11 or DX12?
Tested on both DX11/DX12
Are you using DLSS?
No
If relevant, provide additional screenshots/video: