Wow, I can't believe you've implemented this so quickly, thank you! This is definitely like I had in mind.
After trying it for a bit I do have some ideas to make it perfect, sorry if I sound ungrateful.
Currently it enlarges it by simply hovering. I think it would work better with mouse clicks. Click once to start enlarging (like hovering does now), click on it again to have it go to its original size again (or clicking on another clip to get that one to enlarge). So more like toggling it.
The volume going up is actually really good, just the right amount I think, nothing too harsh for the ears. I think the effect might be better if the other clips get a tiny bit lower volume. I think it'll will get a bit more of a "focus" effect like that, but it might need to be subtle. Hard to say.
Also, it would be nice if the interactions worked while scrolling is paused.
Thank you again, I hope you don't mind the feedback.