1. Stadium Design

2. Voice-over script
This animation is focusing on the acoustics of stadium design and not how a stadium looks.
Sound can bounce back and forth in most stadiums like in this game of pong.
The sound waves will eventually lose energy but there are a few simple things that can be done to reduce the sound which bounces around.
Parallel surfaces are part of the problem so using different angles will help stop the sound from going back and forth.
Soft surfaces will absorb much of the sound energy.
This pong visualisation is good for showing where the sound moves but the air itself doesn’t actually move around as that would be wind.
Sound waves travel by air molecules vibrating and passing these vibrations on.
Newton’s cradle is a better example of how sound waves travel. It shows how energy is transferred through a substance without that substance having to change its position.