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Convention Paper

Evaluation of Spatial Audio Quality of the Synthesis of Binaural Room Impulse Responses for New Object Positions

Authors: Werner, Stephan; Klein, Florian; Müller, Clemens

AES Convention 147 · Paper 10305 · October 2019

Abstract

The aim of auditory augmented reality is to create an auditory illusion combining virtual audio objects and scenarios with the perceived real acoustic surrounding. A suitable system like position-dynamic binaural synthesis is needed to minimize perceptual conflicts with the perceived real world. The needed binaural room impulse responses (BRIRs) have to fit the acoustics of the listening room. One approach to minimize the large number of BRIRs for all source-receiver relations is the synthesis of BRIRs using only one measurement in the listening room. The focus of the paper is the evaluation of the spatial audio quality. In most conditions differences in direct-to-reverberant-energy ratio between a reference and the synthesis is below the just noticeable difference. Furthermore, small differences are found for perceived overall difference, distance, and direction perception. Perceived externalization is comparable to the usage of measured BRIRs. Challenges are detected to synthesize more further away sources from a source position that is more close to the listening positions.

Details

Published in
AES Convention 147
AES Convention
147
Paper number
10305
Publication date
October 6, 2019
Session subject
Posters: Spatial Audio
Affiliation
Technische Universität Ilmenau, Ilmenau, Germany (See document for exact affiliation information.)
Type
Convention Paper