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Room divergence effect in virtual environments

Authors Enge, K.
Year 2019
Thesis Type Master's thesis
Topic Audio Signal Processing
Abstract Virtual reality environments are becoming an increasingly important factor in various applications such as architecture, film and computer games. For a long time, all these areas concentrated primarily on visual impressions. It is undisputed, however, that three-dimensional sound plays an important role in the credibility of virtual environments, if only for the reason that humans characterize real space to a large extent by listening. For the ears, the equivalent of VR glasses is binaural reproduction via headphones. The virtualization of real spaces using CAD-programs opens up new possibilities for psychoacoustic investigations, namely with binaural sounds in virtual spaces. How do virtualization and binaural reproduction influence each other? Does virtualization have an effect on the perceived externalization, distance and direction of binaural reproduction? Can the room divergence effect also be shown in virtual environments? How detailed must spaces be modelled in order to achieve credible experiences for test subjects? Does the possibility of physical movement around a source change the results? Is it possible to "learn" the virtual environment by walking through it? In order to investigate such questions, several spaces with different virtualization techniques will be used: One space by modeling in Unity, one by photo projection on a rectangular virtual space and one by photogrammetry. In these spaces, appropriate psychoacoustic investigations are carried out.
Supervisors Frank, M., Höldrich, R.