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Lately, Koreans are drastically getting more interested in sports to improve their health as the quality oftheir life is improving. Following this trend, government agencies and local organizations have been continuously buildingcommunity sport facilities near residential areas. These facilities are required to be equipped with a good level ofacoustic performance for music and speech delivery: communication and / or music between sports-players while games,leisure sports, and training are carried out. However, excessive reverberation occurs at most of old community sportsfacilities built with lightweight panels as finishing materials so the facilities users have been continuously complainedabout this. With respect to this, the research has attempted to suggest the optimum acoustic performance of six communitysports facilities that lightweight panels were used for finishing materials. After acoustic performance surveysof these facilities were carried out and found out the problems using acoustic simulations. The results of the surveysrevealed that excessive reverberation occurred at the facilities with lightweight panels and this caused difficulties ofcommunication. Acoustic performance of the community sports facilities was evaluated to be suitable after adjustmentsof the room constant according to their appropriate Reverberation Time (RT). This result is thought be useful fordesign and refurbishment of similar community sport facilities in the future.