Tashybabe- I just want to put this out there as a resource for you but I strongly suggest you DON'T READ IT NOW. This is an amazing short book written by a mother about her journey to deciding to homebirth her son who was diagnosed with trisomy 13. I think if it becomes a decision any of us have to make then she has written a great resource to support anyone through such a difficult choice, no matter what decision you make. But it's a full on story to read. I still recommend it to everyone though.
Welcome - Trisomy Oz Prenatal Support

As for making noise, I didn't worry about it. You only make the really loud noises for short bits. It'll be fine