Question

why are floors and ceilings of auditorium and theater covered by soundproof tiles?

Answer 1

1. Most theatres are carpeted, which provides excellent sound dampening.
2. Specific types of carpets provide even more sound absorption.
3. Ceilings can also use acoustical panels or suspended soundproofing baffles and panels to help manage sound and prevent it from leaving the room.
4. Any acoustic treatment will have sound waves reflecting from all surfaces of the room.
5. Ideally, you want to hear only the sound which is coming directly from your speakers and not the reflected sound from walls, ceilings, and floors