Articles written in Pramana – Journal of Physics
Volume 27 Issue 3 September 1986 pp 413-416 Instrumentation And Experimental Techniques
The construction and performance of an acoustic chamber suitable for sound intensity measurements is described. The walls and the ceiling of the room are treated with glass wool sheets, air gap and pleated carpet in that order for sound absorption. The final testing of the room shows that good sound absorption is obtained down to low frequencies. The sound absorption coefficient for the room varies between 0.83 and 0.91 for different frequencies.
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