In Windows 10, many users do not know how to adjust the volume per application.
Changes made to Windows 10 so that they are easy to use and in displays touch, Microsoft added new volume controls.
Left clicking on the audio icon in the notification area will show that you can only change the main volume. But you can change the sound by application. Let's see how.
Instead of left-clicking on the speaker icon, right-click on it. In the menu that will appear you will see first in the list the item "Open the Volume Mixer".
Click on it and you will get it old good mixer with per-app volume settings.