Bouncing Off the Walls: Controlling Acoustics in a Monolithic Dome Thousand Oaks Gymnasium near Barry, Texas. — The hanging acoustic panels combat the noise in the gymnasium. Big D’s BBQ, near Jackson, Mississippi. — These flags provide a more creative way to absorb extra sound. Acoustic panels — These provide an excellent way to absorb unwanted sound. Single hung ceiling — Helps absorb sound in the Gladiator Coliseum in Italy, Texas.