Question

Why the auditorium walls are provided with cardboard panels and porons wall furnishings ?

• A. So that the sound from the stage may be heard properly
• B. So that the echo effect may be minimized
• C. So that the sound may appear to be pleasing on the e~rs of the listeners
• D. All of the above

Answer 1

The correct option is B So that the echo effect may be minimized

Answer is B.
In auditoriums or conference halls, music or other sounds that are produced on the stage must be carried through the air to people in the crowd. Some of these sound waves go directly to the people in the crowd, without bouncing off on anything first. However, other sound waves from the stage first go to areas like walls and ceilings, and the sound either bounces off or is absorbed. When sound waves bounce off a surface, the new direction they travel is related to the angle they strike the surface.
Hence, the auditorium walls are provided with cardboard panels and porous wall furnishings so that the echo effect may be minimized.