Sports Facilities can be described as large areas with a predominance of hard, flat surfaces sometimes including large areas of water and large seating arrangements for spectators. Public address systems are utilized to convey pertinent information to both participants and spectators during scheduled events. In most cases, the ambient noise factors are high as well as the reverberation time for noise decay making it very hard to hear and understand any reasonable intelligible audio-whether direct conversation or via the public address systems. These sports facilities suffer from this phenomenon and have since their inception unless they have been designed or modified to control noise and reverberation.
The hard surfaces that usually abound inside these facilities consist of floors, walls, ceilings and other partitions that make up the facility. These surfaces provide for an unattenuated reflection of all sounds produced inside these facilities and due to the intermodulation and reverberation effect make audio performance suffer greatly deteriorating the ability to discern the spoken word throughout the facility.