Because my school had no doors and most walls were "temporary," you could hear a couple of teachers in addition to myself. But I could be heard and so could my students. As long as you can be heard and your students' responses can be heard, I might use it, especially if it is great otherwise. I imagine you have time to do another video. I would consider doing it, but I would proceed with my timeline in class rather than redo that lesson. If it is better than the first, I'd use it. If not, use the first one.
Jodi Snodgrass, NBCT, Pensacola, FL