Very interesting concept. It is kinda bad that you are bound to lose at first when you don't know which sound is what and where is it coming from. Maybe if there would be a day section where you would get familiar with everything. Also when the sounds are there, the grayness comes up too fast in my opinion and it stays there. I would maybe allow it to gradually go back to normal when there would be quiet. My biggest issue was the brightness because I tried to play it on default and I just couldn't see anything. Even on highest option it was challenging. I don't know if there is ending, because on my third try after a while I got stuck between chair and box on the ground and couldn't move while no new sounds showed up.
Overall very interesting idea and despite some issues nice submission.