HOW SPHERICAL LOUDSPEAKERS CAME INTO AURALIZATION

Abstract

Auralization combines source recording, sound propagation modeling and sound reproduction in a way that components of this chain can be changed, their auditory impression compared, and their optimum constellation be found.For dynamic scenes such as Virtual Reality environments, auralization requires an extremely quick update rate.This can only be achieved with either multiprocessor or GPU computational power, or with low-cost computers, large memory spaces and preprocessing.When it comes to the analysis of the most used interaction movement of listeners in virtual environments, head rotation is far ahead of all translations.Those head movements, too, contribute significantly to source localization, even unconsciously.The order of magnitude of such significant head rotations is below a degree in angular resolution.The challenge for auralization systems is implementation of head rotations very efficiently.Source movements may be of interest as well, if a more life performance is concerned.Thus also for musical instruments rotations must be considered.

Authors 1

1. Michael Vorländer corresponding Aachen Institute of Technical Acoustics

   RWTH Aachen University

   Affiliation as printed

   Institute of Technical Acoustics , RWTH Aachen University , Germany

   Institute of Technical Acoustics, RWTH Aachen University, Germany