Background
When a room is full with stuffs like furniture, electronic utilities, books etc. it's hard to hear reflections of sounds made by us (talking, playing an instrument, sound from falling objects).
But, when the room is empty we quite easily hear the reflections of sound which is according to physics perfectly legit.
However, what seems interesting to me that when we suddenly empty a room with stuffs, the change in hearing reflection of sounds has a great impact on our ear. I personally experienced this phenomenon several times while emptying a room for cleaning and other purposes.
Question
Is it because of the sudden nature of the phenomenon described above, the phenomenon seems to have a greater impact on our ears?
What would happen if we try to get used to the empty room environment? Would sensory adaptation slowly diminishes our sensibility towards reflection?