Analysis of the Room Acoustic Characteristics depending on the Sound Sources for a Multi-purpose Gymnasium finished with Absorbers on Walls and Ceiling

벽 및 천장이 흡음재로 마감된 다목적 체육관에서 음원종류에 따른 실내음향특성의 분석

  • 박현구 (전남대학교 대학원) ;
  • 전지현 (전남대학교 대학원) ;
  • 송혁 (전남대학교 공업기술연구소) ;
  • 김선우 (전남대학교 건축학부)
  • Published : 2002.05.30

Abstract

This study aims to investigate and evaluate the room acoustic designs of a multi purpose gymnasiums which do not use adjustable treatments in order to change the acoustical characteristics. Considering the main uses of gymnasium and auditorium, experiments were carried out using both nondirectional speakers on the stage and loudspeaker installed on the ceiling. The result from the study are as follows; Measured RT under unoccupied condition was a little longer than the expected value, therefore, in the case of occupied condition RT would be close to the optimum value. However, parameters that evaluate intelligibility and speech transmission property appeared to be low and have large differences depending on the measuring points, therefore, more effective sound reflecting surfaces and sound reinforcement systems should be considered.

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References

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