| Issue |
Acta Acust.
Volume 9, 2025
Topical Issue - Virtual acoustics
|
|
|---|---|---|
| Article Number | 31 | |
| Number of page(s) | 15 | |
| DOI | https://doi.org/10.1051/aacus/2025012 | |
| Published online | 24 April 2025 | |
Scientific Article
Comparison of binaural auralisations to a real loudspeaker in an audiovisual virtual classroom scenario: effect of room acoustic simulation, HRTF dataset, and head-mounted display on room acoustic perception*
1
Institut für Hörtechnik und Audiologie Jade Hochschule Oldenburg, Ofener Str. 16/19 26121 Oldenburg Germany
2
Acoustics Group Carl von Ossietzky University Oldenburg, Carl-von-Ossietzky-Str. 9-11 26129 Oldenburg Germany
3
Cluster of Excellence “Hearing4All”
4
Department of Psychology, Clinical Psychology and Psychotherapy, University of Regensburg Universitätsstr. 31 93053 Regensburg Germany
** Corresponding author; felix.staerz@jade-hs.de
Received:
28
June
2024
Accepted:
3
March
2025
In this study, auralisations of a real room were compared to the actual acoustics of that room using listening tests. Participants sat in a room and wore a combination of a head-mounted display (HMD) and headphones, and rated different room-acoustic attributes for an auralised loudspeaker and the corresponding real loudspeaker in the room, without knowing what they were actually listening to. Auralisations were created with varying levels of detail using either measured or simulated binaural room impulse responses (BRIRs), which were based on individual or generic Head-and-Torso simulator (HATS) data. Besides different levels of detail, some manipulations of the room acoustics were introduced into the simulation to better contextualise the results. The results show a good agreement between the auralised and the real room for both measured and simulated BRIRs. The observed deviations based on the different levels of detail were generally smaller than the introduced room acoustic manipulations. Individual head-related transfer function (HRTF) data had no real benefit, and the passive influence of the HMD headphone combination had no effect on the ratings.
Key words: Binaural auralisation / Interactive virtual environments / Binaural room impulse responses / Room acoustic simulation / Perceptual evaluation
This publication includes data previously published in the proceedings of Forum Acusticum 2023, Turin, Italy [1].
© The Author(s), Published by EDP Sciences, 2025
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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