Can someone tell me what is causes these noises, and if I can change it in Audacity?

Excellent. Now we just have to get rid of that room echo—recording in a bare room—and we may have it licked.

Are you using any kind of sound proofing? I designed a portable studio out of Home Depot plastic pipes and furniture moving blankets.

Did you keep the Yeti?

Keep scrolling down until you get to the construction details.

I designed it not to use glue so you can knock it apart when you don’t need it.

Koz