A study of wideband absorbers in a non-environment control room: Characterisation of the sound field by means of p-p probe measurements

摘要

Wideband absorbers are a fundamental part of non-environment control rooms, providing high absorption in all the frequency range. They consist of huge angled panels hanging in front of the rear wall, the side walls, and the ceiling. As a first step to understand their absorption mechanisms, the sound field in the vicinity of the wideband absorbers of the rear wall has been measured with a p-p intensity probe in the control room at the 'Universidade de Vigo'. The characteristics of the sound field in the proximity of the rear wall will be discussed on the basis of the analysis of the pressure, particle velocity and intensity measurements.