Question

please see this attachment ​

Answer 1

Answer:

Reverberation

Reverberation is the collection of reflected sounds from the surfaces in an enclosure like an auditorium. It is a desirable property of auditoriums to the extent that it helps to overcome the inverse square law dropoff of sound intensity in the enclosure.

• To control reverberation, THX cover the rear wall of the auditorium with thick, absorptive material which prevents the direct sound of the screen speakers from reflecting into the seating area.