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Conference Paper

Loudspeaker Positions with Sufficient Natural Channel Separation for Binaural Reproduction

Authors: Young, Kat; Kearney, Gavin; Tew, Anthony I.

AES Conference: 2018 AES International Conference on Spatial Reproduction - Aesthetics and Science · Paper EB1-9 · July 2018

Abstract

Natural channel separation (NCS) refers to the level of acoustic isolation which exists naturally between the ears for a single sound source. To the authors’ knowledge, no systematic study has been undertaken to identify source positions which can produce the required level of NCS for binaural reproduction to be achieved without using crosstalk cancellation. The transfer functions of 655,214 loudspeaker positions were simulated using the boundary element method and the NCS calculated for each. For loudspeaker positions under 0.5 m from the head there is a clear inverse relationship between NCS and distance. Close to the head, many positions exceed the 20 dB NCS required. Results suggest that near-field binaural reproduction may be implemented without crosstalk cancellation, subject to further perceptual testing.

Details

Published in
AES Conference: 2018 AES International Conference on Spatial Reproduction - Aesthetics and Science
Paper number
EB1-9
Publication date
July 6, 2018
Session subject
natural channel separation; binaural; computational simulation; boundary element method; head-related transfer function
Affiliation
University of York, York, UK (See document for exact affiliation information.)
Type
Conference Paper