Why are the walls and ceilings of modern cinema halls and auditoriums covered with sound-absorbing materials…
Why are the walls and ceilings of modern cinema halls and auditoriums covered with sound-absorbing materials like porous tiles or heavy curtains?
To stop sound from escaping outside the hall
To increase the pitch of the speakers
To reduce undesirable echoes and reverberation
To increase the speed of sound inside the hall
Solution
Porous sound-absorbing materials prevent multiple reflections (reverberation) and echoes, ensuring that speech and music remain clear and distinct for the audience.