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Room Acoustic Rendering Networks with Control of Scattering and Early Reflections by Scerbo, Matteo; Savioja, Lauri; De Sena, Enzo is a scholarly article available to read on EtoBox.

What is Room Acoustic Rendering Networks with Control of Scattering and Early Reflections about?

Room acoustic synthesis can be used in Virtual Reality (VR), Augmented Reality (AR) and gaming applications to enhance listeners' sense of immersion, realism and externalisation. A common approach is to use Geometrical Acoustics (GA) models to compute impulse responses at interactive speed, and fast convolution methods to apply said responses in real time. Alternatively, delay-network-based models are capable of modeling certain aspects of room acoustics, but with a significantly lower computational cost. In order to bridge the gap between these classes of models, recent work introduced delay network designs that approximate Acoustic Radiance Transfer (ART), a GA model that simulates the transfer of acoustic energy between discrete surface patches in an environment. This paper presents two key extensions of such designs. The first extension involves a new physically-based and stability-preserving design of the feedback matrices, enabling more accurate control of scattering and, more in general, of late reverberation properties. The second extension allows an arbitrary number of early reflections to be modeled with high accuracy, meaning the network can be scaled at will between com

Author

Scerbo, Matteo; Savioja, Lauri; De Sena, Enzo

Published

2023

Language

EN