| Digital measurement of the analog acoustical parameters of a concert hall is difficult. The aim of such work is to create a digital acoustical derivation that is an accurate numerical representation of the complex analog characteristics of the hall. The present study illustrates the exponential sine sweep (ESS) measurement process in the derivation of the acoustical impulse response function (AIRF) of a music performance hall. Particularly, it examines specific difficulties of the process, such as preventing the external effects of the measurement transducers from corrupting the derivation, and provides solutions, such as filtering techniques in order to remove such unwanted effects. In addition, the thesis presents a novel method of numerical verification through mean-squared error (MSE) analysis in order to determine how accurately the derived AIRF represents the acoustical behaviour of the actual hall. |
