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Convention Paper

Virtual Loudspeaker Rendering for Multiple Listeners

Authors: Lim, Jong-Soong; Kyriakakis, Chris

AES Convention 109 · Paper 5183 · September 2000

Abstract

This paper describes a method for implementing immersive audio rendering filters for multiple listeners simultaneously. In particular, the paper focuses on the case of two listeners and four loudspeakers to determine the optimum weighting vectors for the necessary FIR filters using the least-mean squares (LMS) adaptive algorithm. It also presents the results of four different adaptive filter implementations which can deliver a binaural audio signal to each listener's ears for two different situations. The first situation renders a virtual source in the same direction for both listeners; and the second one renders the virtual source at different directions for each listener. Several signal processing and implementation issues are presented. Results are presented for the general case in which each listener is seated at an arbitrary position relative to the loudspeakers as well as for the simpler to implement symmetric case in which each listener is seated at the center of each loudspeaker pair.:

Details

Published in
AES Convention 109
AES Convention
109
Paper number
5183
Publication date
September 6, 2000
Session subject
Digital Signal Processing
Affiliation
University of Southern California, Los Angeles, CA (See document for exact affiliation information.)
Type
Convention Paper