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Convention Paper

Compact Stereo Loudspeakers with Dipole Processing

Authors: Faller, Christof

AES Convention 146 · Paper 10154 · March 2019

Abstract

Compact stereo loudspeakers have become increasingly popular. One category of these use side-firing left and right transducers featuring a certain spatial effect due to the transducers’ directivity at high frequencies. The presented technique increases the spatial effect by controlling directivity at low/medium frequencies, where the transducers have low directivity. A multi-band filter network is used to increase directivity at these frequencies by partially reproducing the stereo signal with dipole directivity pattern. The problem of interference between left and right direct and dipole reproduced sound is addressed.

Details

Published in
AES Convention 146
AES Convention
146
Paper number
10154
Publication date
March 6, 2019
Session subject
Loudspeaker: Part 3
Affiliation
Illusonic GmbH, Uster, Zürich, Switzerland; EPFL, Lausanne, Switzerland (See document for exact affiliation information.)
Type
Convention Paper