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Convention Paper

Sound Source Obstruction in an Interactive 3Dimensional MPEG-4 Environment

Authors: Reiter, Ulrich; Steglich, Beatrix

AES Convention 120 · Paper 6705 · May 2006

Abstract

This paper describes the continuation of research concerning sound source obstruction in virtual scenes. An algorithm for the determination of sound source obstruction was implemented in the described 3D MPEG-4 Environment. With the help of the MPEG-4 Advanced AudioBIFS node AcousticMaterial acoustic properties are assigned to potential obstructors in a virtual scene. Various implementations of acoustic obstruction are explained. Furthermore, a bimodal subjective assessment was performed in order to identify the best implementation of obstruction. The results of the assessment are presented in-depth. Additionally we demonstrate a concept for a second intended bimodal assessment for the comparison of gain and frequency filtering and give an outlook for further research and development in the area of immersive acoustics.

Details

Published in
AES Convention 120
AES Convention
120
Paper number
6705
Publication date
May 6, 2006
Session subject
Spatial Perception and Processing
Affiliation
Technische Universität Ilmenau (See document for exact affiliation information.)
Type
Convention Paper