Evaluation of uncorrelated acoustic noise

Abstract

A system is proposed that provides an estimate of the attenuation of acoustic signals during propagation in an urban environment. A full-spectrum measurement mode is provided for the entire audio range with a two-channel measurement circuit. The estimate is given taking into account the delay time of the signal during propagation along the path, due to the finite speed of sound propagation in the air. The amount of attenuation is determined by the difference between the signals received on each channel. The measurement accuracy is estimated