Haven't really played around in the Home much lately but yesterday I decided to check out the PTC scaling. I also grabbed all of my notification items and noticed I had some new SFX items in there. They come out as physical speakers with a 50 and a +/- on them, but I can't figure out how to make them work. By their description they look like they were introduced for Halloween but I hear nothing from them. I don't see any other options with them.
Different question, but still on the audio tab, can you not use any other soundscapes other than the room they are made for?