Question

If the audio has no sound:

Answer 1

Answer:

means that I can see the screen and the other side of the student

Answer 2

Answer:

To fix this, right-click the speaker icon in the Windows taskbar and choose Sounds to enter the audio preferences. Under the Playback tab, find the device you want to use—if you don't see it, try right-clicking and checking Show Disabled Devices—then select the output device and click the Set Default button.

Explanation:

Hope it helps you ✌️