Symptom: No sound is heard from other applications while BIAS X is running on Windows.
How to Allow Sound from Other Apps While Using BIAS X
Right-click the speaker icon in the lower-right corner of your desktop.
Click Sound settings.
Scroll down and click More sound settings under the Advanced section.
In the Sound window, select your current output device and click Properties.
Go to the Advanced tab.
Uncheck the box for "Allow applications to take exclusive control of this device".