Sorry I saw "Education" and for some reason overlooked "Lite".
I am on Core, so cannot vouch that Settings>Sound should be same in Lite, though I though they were at least similar. Maybe @Aravisian or others on Lite can chip in.
Have you set your Software Updates to point to "Main Server" in prefrernce to a country server?
Then have you visited Software and checked for any additional drivers?
I have no idea what sound card is in your machine and their website does not seem willing to reveaal that information, even if we were to know which version of T100 you have.
Can you provide us with listing from this command:
Edit:
I see you have provided more info on your machine here: Webcam not detected, dmesg | grep returns nothing - #4 by StarTreker