How to adjust PC Audio Settings
The instructor station PC sends the audio to the projector to play sound through the speakers installed in the room. Sometimes a user changes the settings, or a program changes them accidentally. The steps below will help you troubleshoot such issues.
Right-click on the speaker icon and click Sound Settings:
On the Sound Settings screen that appears, confirm which device is currently selected:
Change the device as needed by clicking/toggling the circle to the left of it.
If the problem persists, restart the PC.