Contribution
Analysis of Room Acoustic Measurements Indoors, Outdoors and In Between
* Presenting author
Abstract:
One aim of Auditory Augmented Reality is to merge virtual audio objects with the real acoustic environment. This requires a sufficient match between virtual and real room acoustics to achieve a plausible perception. Recently, several studies have been carried out that focus primarily on the transition between two rooms as a coupled room acoustic system. However, the consideration of the transition from interior to exterior space is an area that has been less investigated. For this purpose, a dataset was created that includes the transitions from a building interior to an outdoor area and to a roofed outdoor area. The acoustic measurements using the Spatial Decomposition Method were carried out for a sound source in the indoor area, a source in the outdoor area, and a sound source moving with the measurement position. The acoustic analysis is carried out using various room acoustic parameters, consideration of the direction of arrival, and evaluation based on a principal component and linear discriminant analysis. Results for the stationary sources show most parameter changes around the coupling position, while the moving source introduces a shift towards its transition.