Occasionally, she plays the radio or tv loudly, but mostly she talks/screams loud conversation.
We handled partially by putting a solid wooden door on her room instead of a hollow door, by building an extra door/wall into the hallway between her room and the rest of the house, by soundproofing the door to the bedroom straight across from her room, running fans, noise machines for white/brown noise, and by knocking politely and saying “I can hear you/your TV/your radio” or “I can hear you going hoarse, perhaps you should talk quieter”. The frustration over the noise is the worst thing, it sets everyone’s nerves jangling. She will argue with me through her door, but when I leave she usually turns the volume down.
I am planning to call the A/C man to re-run the vents over her room and another bed and bathroom as the noise travels through the vents between the rooms she is not in, but that vents connect.
Ideally, she needs a separate cottage or something, but I cannot afford that. All her support is out of pocket to us, no government help as of yet.
The frustration of it all wins sometimes with me, and I cry…