Design and construction of an anechoic c
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M. Pancholy; A.F. Chhapgar; V. Mohanan
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Article
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1981
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Elsevier Science
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English
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The new anechoic room of the National Physical Laboratory of lndia provides a free space of 3.5 x 3"5 x 3"5 m with a lower cut-offfrequency of 70 Hz. Design details and performance characteristics of the chamber are discussed. Measures adopted to reduce the ambient noise level are also described.