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Conference Paper

Fade-in Reverberation in Multi-room Environments Using the Common-Slope Model

Authors: Lee, Kyung Yun; Meyer-Kahlen, Nils; Götz, Georg; Svensson, Ulf Peter; Schlecht, Sebastian J.; Välimäki, Vesa

AES 2024 International Conference on Audio for Virtual and Augmented Reality · Paper 2 · August 2024

Abstract

In multi-room environments, modelling the sound propagation is complex due to the coupling of rooms and diverse source-receiver positions. A common scenario is when the source and the receiver are in different rooms without a clear line of sight. For such source-receiver configurations, an initial increase in energy is observed, referred to as the fade-in of reverberation. Based on recent work of representing inhomogeneous and anisotropic reverberation with common decay times, this work proposes an extended parametric model that enables the modelling of the fade-in phenomenon. The method performs fitting on the envelopes, instead of energy decay functions, and allows negative amplitudes of decaying exponentials. We evaluate the method on simulated and measured multi-room environments, where we show that the proposed approach can now model the fade-ins that were unrealisable with the previous method.

Details

Published in
AES 2024 International Conference on Audio for Virtual and Augmented Reality
Paper number
2
Publication date
August 5, 2024
Session subject
Audio for Virtual and Augmented Reality
Affiliation
Acoustics Lab, Dpt. of Information and Communications Engineering, Aalto University, Finland; Acoustics Lab, Dpt. of Information and Communications Engineering, Aalto University, Finland; Acoustics Lab, Dpt. of Information and Communications Engineering, Aalto University, Finland; Dpt. of Electronic Systems, Norwegian University of Science and Technology, Norway; Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Germany; Acoustics Lab, Dpt. of Information and Communications Engineering, Aalto University, Finland (See document for exact affiliation information.)
Type
Conference Paper