Thesis

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Efficient prediction of the listening area for plausible reproduction

Authors Kurz, E.
Year 2018
Thesis Type Master's thesis
Topic Psychoacoustics
Keywords Ambisonics, Surround, Wiedergabetechnik
Abstract For planning and installation of surrounding loudspeaker arrays for reproduction of threedimensional sound fields, among other objectives, the size of the auditorium with plausible localization is quite relevant. Nowadays this area, also called listening area, is estimated during the planning phase. This estimation is based on experience knowledge. However, the size of the listening area cannot exactly be determined before the loudspeaker array is installed. The prediction of the listening area is very important to avoid possible mistakes in the planning process. For prediction of the listening area usage of an efficient extended energy vector is quite reasonable [43]. The extension of the energy vector considers time and level differences in dependence on the listening position. Proceeding from [43], this master thesis refines a prediction algorithm. Based on results from [37], frequency-dependent panning is integrated. Moreover a model of image-sources is implemented to simulate wall reflections of arbitrary order. Furthermore the radiation pattern of the loudspeakers in the surrounding array are integrated. Therefore radiation patterns of different loudspeakers are measured. A listening experiment is performed to optimize parameters of the algorithm.
URL http://phaidra.kug.ac.at/o:76980
Supervisors Frank, M., Sontacchi, A.