지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2014.10
- 수록면
- 888 - 892 (5page)
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초록· 키워드
오류제보하기
This paper evaluates C<SUB>50</SUB> in elementary school classrooms and considers utilization of C<SUB>50</SUB> as an assessment indicator of acoustic performance. C<SUB>50</SUB> is early-to-late arriving sound ratio, recent study reported that C<SUB>50</SUB> is more appropriate as a measure of clarity and speech intelligibility than D<SUB>50</SUB> because it is linearly related to subjective responses. The average of C<SUB>50</SUB> in elementary school classrooms appeared to be about +2 dB ~ +3 dB throughout 500 Hz ~ 4 kHz. However, absolute evaluation is difficult because there is no suitable reference or standard yet. As deviation of C<SUB>50</SUB> according to location is larger than reverberation time, it is expected that C<SUB>50</SUB> will be more sensitive when someone assesses acoustic performance of classrooms. Correlation between C<SUB>50</SUB> and reverberation time is very high. From logarithmic regression equation, we can estimate appropriate range of C<SUB>50</SUB> in elementary school classrooms indirectly, using standard of reverberation time in ANSI.
목차
ABSTRACT
1. 서론
2. 이론적 고찰
3. C₅₀ 실태 평가
4. 결론
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