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Convention Paper

The Effect of the Grid Resolution of Binaural Room Acoustic Auralization on Spatial and Timbral Fidelity

Authors: Johnson, Dale; Lee, Hyunkook

AES Convention 147 · Paper 10303 · October 2019

Abstract

This paper investigates the effect of the grid resolution of binaural room acoustic auralization on spatial and timbral fidelity. Binaural concert hall stimuli were generated using a virtual acoustics program utilizing image source and ray tracing techniques. Each image source and ray were binaurally synthesized using Lebedev grids of increasing resolution from 6 to 5810 (reference) points. A MUSHRA test was performed where subjects rated the magnitudes of spatial and timbral differences of each stimulus to the reference. Overall, it was found that on the MUSHRA scale, 6 points were perceived to be "Fair," 14 points "Good," and 26 points and above all "Excellent" on the grading scale, for both spatial and timbral fidelity.

Details

Published in
AES Convention 147
AES Convention
147
Paper number
10303
Publication date
October 6, 2019
Session subject
Posters: Spatial Audio
Affiliation
University of Huddersfield, Huddersfield, UK (See document for exact affiliation information.)
Type
Convention Paper