Sound quality changes when opening the windows 10 sound dialog
This should be considered a question rather than a bug report.
Your software works fine for me except it was quite a tinny sound at first. I went to the windows 10 sound settings page (right click on volume control, click on sound settings) and the sound suddenly turned good. When I close the dialog it gets tinny again. I find it most peculiar that just opening a dialog changes the sound like that but if that's what I need to do it's no big deal. Do you have any ideas off the top of your head why that would happen?
Strange, did you try changing the sound properties, turn off enhancements, restore defaults, etc.?
My current laptop (lenovo) had a setting adjusting sound to media type, maybe something like that?