Public defence in Computer Science, M.Sc. Raimundo Gonzalez Diaz

This study contributes to the fields of acoustics and signal processing. The subject of this study is that of acoustic scattering for spatial audio and virtual acoustic applications. Acoustic scattering is the physical process by which sound waves diffract, scatter and reflect from surfaces and bodies. Not many methods exists for capturing and reusing these effects in interactive sound environments. The purpose of this study was to develop methods for encoding the acoustics scattering properties of arbitrary geometries, so they can be efficiently implemented in spatial audio. This thesis is relevant to fields of VR and AR for including acoustic scattering in interactive sound scenes can enrich the description and experience of a virtual environment. The method proposed in this thesis encodes acoustic scattering into the spherical harmonic domain in the form of a multiple-input multiple-output system. This representation of scattering provides low rendering error, is memory efficient and it is compatible with existing spatial audio frameworks such as Ambisonics and Image-Source methods.

Opponent: Professor Sascha Spors, Universität Rostock, Germany

Custos: Professor Tapio Lokki, Aalto University School of Science, Department of Computer Science

Contact details of the doctoral student: [email protected]

The public defence will be organised on campus (Computer Science building, lecture hall C105 T2) and via Zoom. Zoom link

The thesis is publicly displayed 10 days before the defence in the publication archive Aaltodoc of Aalto University. 

Electronic thesis