Right click the small speaker icon usually located in the lower right screen corner.
The click should open a window with 4 or 5 audio related menu choices.
Each menu choice should lead to a variety of Windows, Tabs, and Properties all related to audio configuration settings.
Take a look at the current audio configuration to determine if all settings are as expected. If not as expected, then research further to determine what may need to be changed or reconfigured.
Do not immediately make any changes. Look first and make notes accordingly. Then make changes but only one change at a time keeping track of what you changed (from - to) and where you made the change. Just in case you need to undo some change.