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Visualization and analysis tools for spherical directivity data

Authors Wegler, K.
Year 2016
Thesis Type Audio Engineering project
Topic Spatial Audio
Keywords acoustics, audio recording and reproduction
Abstract In acoustics there are many uses for directivity data, which are typically multidimensional and expressed in phase and amplitude. For instance, there are Ambisonics data, measurements conducted with spherical microphone arrays and spherical loudspeaker arrangements, all of which individually yield a big amount of multidimensional data, that is difficult to inspect. In order to deal with that excessive amount of data, balloon representations and polar diagrams are used. The goal of this work is to develop a graphical user interface (GUI) in python. This GUI will make it possible to view existing directivity data in balloon representation (in azimuth and zenith), in polar diagram (polar angle and sectional plane) and world map representation (Mollweide projection). A set of existing data will be exemplarily analyzed and compared using this GUI.
Supervisors Zotter, F.