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.
초록· 키워드
오류제보하기
The anechoic chamber is essential tool to measure the various acoustic parameters with high precision. The chamber provides the climate controlled indoor environments but requires the dedicated room at a great cost in order to isolate and absorb sound field. Provided the purpose of the chamber is specific to the experiments of sound localization, the performance requirements excluding free field can be alleviated for cost effective solution. This paper designs low cost and profile anechoic chamber based on acoustic pyramids and evaluates the performance specified by the Annex of ISO 3745. Data analysis is employed to measure the free and hemi-free field performance over five straight paths for working areas and four paths for non-working areas. The identical two measurement campaigns were conducted for free and hemi-free field chamber which is easily interchangeable by simple labor in this chamber design. In the working area with conventional speaker, the results of these analyses demonstrate that lab-designed anechoic chamber is in conformance with ISO 3745 for 250 Hz - 16 kHz one-third octave band at free field chamber and for 1 kHz - 16 kHz one-third octave band at hemi-free field chamber.
목차
등록된 정보가 없습니다.
참고문헌 (11)
참고문헌 신청
E. H. Bedell / 1936 / Some data on a room designed for free field measurements / J. Acoust. Soc. Am. 8:118~125
L. L. Beranek / 1946 / The design and construction of anechoic sound chambers / J. Acoust. Soc. Am. 18:140~150
W. Koidan / 1972 / Wedge design for national bureau of standards anechoic chamber / J. Acoust. Soc. Am. 52:1071~1076
J. Xu / 2005 / Flat-walled multilayered anechoic linings : optimization and application / J. Acoust. Soc. Am. 118:3104~3109
S. Schneider / 2008 / Experimental and numerical investigations on melamine wedges / J. Acoust. Soc. Am. 124:1568~1576
L. L. Beranek / 1946 / The design and construction of anechoic sound chambers / J. Acoust. Soc. Am. 18:140~150
W. Koidan / 1972 / Wedge design for national bureau of standards anechoic chamber / J. Acoust. Soc. Am. 52:1071~1076
J. Xu / 2005 / Flat-walled multilayered anechoic linings : optimization and application / J. Acoust. Soc. Am. 118:3104~3109
S. Schneider / 2008 / Experimental and numerical investigations on melamine wedges / J. Acoust. Soc. Am. 124:1568~1576
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