Is it possible to have a video on my home page with sound?
It's possible to embed videos on the homepage.
Depending on your theme, this video may appear in the middle of your homepage usually below the Hero/slider image.
This article from our help center guides you through the steps on doing this:
Also, certain themes allow you to place a video as your Hero as opposed to an image. If your theme has this feature, you can find it by navigating to Design / Edit Theme / Click the Home Tab
Let me know if you have any questions.