Question

why walls and floors of cinema halls and auditoriums are covered with curtains and carpets? ​

Answer 1

#BAL

In big halls, sound is sustained in the hall due to repeated reflections from the walls, ceilings and floor of the hall. This is known as reverberation. A small reverberation is preferred but if it is increased the sound becomes blurred, and could not be easily audible. For removing this unnecessary reverberation there are certain substances like curtains, carpets and false ceilings used to absorb sound as a result reverberation is decreased. This is because the soft and porous materials are good absorbers and bad reflectors of sound.