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Journal Article

A Computationally-Efficient and Perceptually-Plausible Algorithm for Binaural Room Impulse Response Simulation

Authors: Wendt, Torben; van de Par, Steven; Ewert, Stephan D.

Journal of the Audio Engineering Society · Volume 62 · Issue 11 · pp. 748–766 · November 2014

Abstract

Simulating the reverberation of rooms has numerous applications that range from evaluating acoustic scenarios in the development of signal processing algorithms to the exploration of speech intelligibility in virtual rooms with movable sources. A hybrid approach was created to simulate room acoustics, achieving high computational efficiency and perceptual plausibility: early reflections were calculated using the image source model (ISM) and the reverberant tail used a feedback delay network (FDN). The FDN approach was modified to be adaptable to various room dimensions and wall absorption coefficients. Using head-related impulse responses, the authors extended it to create spatially-distributed reverberation for arbitrary source and receiver positions. Subjective ratings of the perceived room attributes and the assessment of various common parameters showed a good correspondence between simulated and real rooms.

Details

Publication
Journal of the Audio Engineering Society
Volume
62
Issue
11
Pages
748–766
Publication date
November 6, 2014
Affiliation
AG Akustik and Cluster of Excellence Hearing4all, Universität Oldenburg, Germany; Medizinische Physik and Cluster of Excellence Hearing4all, Universität Oldenburg, Germany (See document for exact affiliation information.)
Type
Journal Article