3-Dimensional room impulse response measurements in critical listening spaces

Most of the knowledge and the existing objective acoustic measures defined to describe the sound field in large spaces are commonly evoked to predict the acoustic performance of small rooms. It is now becoming evident that this practice leads to flawed concepts. This document aims to investigate the importance of directionality of the energy as it decays in a room. An attempt to define a new method to measure the effect of three dimensional reflection density across time is proposed. This method is based on the analysis of the impulse response in three dimensions using B-Format signals