The use of sport centers for musical shows

Abstract

The sport centers are often used for musical shows, these buildings are built for sporting events, and they have a large volume with surfaces acoustically reflective (concrete steps, plaster and concrete ceilings) and have high values of reverberation time. In this work, a study of sporting center “Pala Jacazzi” in Aversa (Italy) for musical shows is reported. This building was designed for sport such as basketball and volley, has a volume of 28.000 cubic meters, length is 60 m, width is 60 m, and the seating capacity is 2.000. The acoustic measurements were carried out in accordance with ISO 3382, with an omnidirectional sound source, feed with a MLS signal, put in the game rectangle, and the measurements microphone put in different point on the steps. The average value, without audience, of T30 at 1.0 kHz is over 5.0 s; this is an high value if the sporting center must be used for musical shows. The software for the architectural acoustic “Odeon” is used to choose the type of absorbent material to insert and to evaluate the area of the walls and ceiling to cover for reduce T30 values, without audience, to 3.0 s.