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Conference Paper

Evaluation of Robustness of Dynamic Crosstalk Cancellation for Binaural Reproduction

Authors: Matsuda, Ryo; Otani, Makoto; Okumura, Hiraku

AES Conference: 2018 AES International Conference on Spatial Reproduction - Aesthetics and Science · Paper P1-1 · July 2018

Abstract

Binaural reproduction/synthesis is one of promising ways to present spatial auditory space to a listener. Generally, binaural signals can be reproduced by a set of headphones. An alternative way for presentation of binaural signals is to use loudspeakers without wearing any equipment like headphones by employing so called crosstalk cancellation (CTC). A CTC system is realized by inverse filters, i.e. CTC filters, which cancel transfer functions between loudspeakers and both ears. However, coefficients of CTC filters vary with listener’s position and orientation, thereby resulting in a quite small sweet spot and forcing a listener to be still while listening. Therefore, the authors have been developing dynamic CTC system using head tracking and real-time filter generation which allows the listener to move and rotate his/her head freely. However, optimal positions of loudspeakers for dynamic CTC for a single listener system have not been clarified. In this paper, we use a spherical loudspeaker array to evaluate impacts of loudspeaker arrangement on robustness of CTC system.

Details

Published in
AES Conference: 2018 AES International Conference on Spatial Reproduction - Aesthetics and Science
Paper number
P1-1
Publication date
July 6, 2018
Session subject
binaural reproduction; dynamic crosstalk cancellation; loudspeaker array; sweet spot size
Affiliation
Kyoto University, Kyoto, Japan; Yamaha Corporation, Japan (See document for exact affiliation information.)
Type
Conference Paper