연구홍보포털

논문 초록 (Abstract)

These Sound equipments exist in many different forms around us and researches to deliver effective aural information according to the characteristics of place of usage are being conducted. However, th ere are not many studies on acoustic change according to the material or structural change that this study produced wood and plastic sound equipments in different sizes that are being used most widely as material of the sound system and scientifically measured sound characteristics that change depending on material and structur al change in space with soundproof installations. For measurement method , the same sound source was delivered the customized sound equipment using speaker module, collected the sound through microphone, and an alyzed with acoustic measurement software called “Gold wave.” Accor ding to the research result, amplitude was longer for plastic sound eq uipment than the wood sound system and the time of reaching maximum va lue of sound pressure fromthe occurrence of sound was shorter when t he size of wood sound equipment was smaller and plastic sound equipmen t was the opposite. The time of moderately declined sound pressure from maximum value reaching parallel state was longer for plastic sound eq uipment and the time was shorter when the size was longer. The time o f sound getting extinct was longer for plastic than wood, was shorter when the length was shorter, and reverberation time of sound was longe r for wood sound equipment than plastic sound equipments. The results of this study are expected to be used in organizing sound space accor ding to the characteristics of material and structure.