The acoustical properties of the chamber at the Department of Physics, Sung Kyun Kwan University are investigated. By using the least square method based on pressure inverse law each reference sound pressure level is determined. The free field data ar...
The acoustical properties of the chamber at the Department of Physics, Sung Kyun Kwan University are investigated. By using the least square method based on pressure inverse law each reference sound pressure level is determined. The free field data are collected at both outdoor and indoor measurements. The deviations from the free field condition show that a reference sound pressure level plays a critical role in evaluating the performance of anechoic chamber. The cutoff frequency of the anechoic chamber is found to be in the range of 150Hz-170Hz.