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Convention Paper

Non-uniform Voice Coil Winding for Electrodynamic Loudspeaker

Authors: Mazin, Victor; Lee, Yong-Sang

AES Convention 116 · Paper 6152 · May 2004

Abstract

In electrodynamic loudspeakers the force factor Bl is an irregular and asymmetrical function of the voice-coil displacement. This results in diverse distortion during voice-coil oscillation. In the paper a method of artifact reduction is suggested. This method is based on application of non-uniform voice-coil winding, i.e. number of layers varies along the voice-coil axis. The voice coil proposed allows a more regular and symmetrical Bl factor than a conventional voice coil. Theoretical background of the method is given. Effects of the non-uniform voice coil on loudspeaker performance have been investigated using Klippel Distortion Analyzer.

Details

Published in
AES Convention 116
AES Convention
116
Paper number
6152
Publication date
May 6, 2004
Session subject
Loudspeakers; Microphones
Affiliation
Samsung BlueTek Co. Ltd., Suwon City, Gyeonggi-Do, Korea (See document for exact affiliation information.)
Type
Convention Paper