These doors are made for slidin’

The problem of installing acoustic treatment to the sliding doors has been solved for the moment, by movable strips of batten with acoustic foam tiles attached to them.  One that leans against the door (for the door that slides outside of the room, and one that is hooked to allow the door to slide behind it.  This one can be removed from the hook and leaned up against the wall when the door is not in use.