Music room progress. Worked well past midnight on a dark desert evening. I'm in the desert.
My backyard. Hot, brutally dry climate. This room doesn't have heating or ac, but it's close enough for me to connect to the house system. One vent should handle it. I thought about just putting a unit in that broken window. Kid says window ACs are ghetto, and it doesn't work with the sound plug idea.
I drilled small holes in the doors and walls and filled them with expanding foam. Used a dozen cans inserting the little straw into the cavities. Worked great but for blowing out the mouse hole and a couple leaky spots to the outside that I'm glad are filled but messed up a nice sidewalk. Very noticeable sound deadening and excellent much needed insulation. We can barely hear a knock on the walls from the adjoining garage. That stuff is horrid to get on you or off of anything, btw. It is aggressively expansive too. One can goes a long way. Help never arrived, so I cut the sheetrock into 4x4's and hung it myself. I was going to tape and mud today, but an engineer rocket scientist neighbor thinks I should glue up heavy foam and carpet the ceiling. If this room's a rocking, don't bother knockin'? I have a couple remnants that will do the job in blah beige, just not so sure about this yet. He approved the foam fill but said my ceiling was "a loudspeaker". Anyway, this foam was very simple and effective sound deadening if not quite soundproofing. Wow, it's 11am and I'm just getting coffee. I kind of like being accidentally retired.