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Conference Paper

Segmented mass loading for loudspeaker cones

Authors: Goossens, Karel

AES Conference: 2019 AES INTERNATIONAL CONFERENCE ON AUTOMOTIVE AUDIO · Paper 17 · September 2019

Abstract

"Common loudspeaker cones have axisymmetric geometry and are made of isotropic cone materials, such as
paper. This leads to dominant radial cone breakup modes with ring-shaped vibration patterns that create peaks
and dips in the frequency response. By adding local masses on the cone in a circle segment configuration, the
isotropy is broken due to non-axisymmetric inertial forces. Consequently, the patterns of the breakup modes are
changed from ring shaped zones into irregular areas with in-phase and out-of-phase contributions to the sound
pressure that cancel each other partially. This leads to a smoothing of the SPL response."

Details

Published in
AES Conference: 2019 AES INTERNATIONAL CONFERENCE ON AUTOMOTIVE AUDIO
Paper number
17
Publication date
September 6, 2019
Affiliation
Premium Sound Solutions, Dendermonde, Belgium (See document for exact affiliation information.)
Type
Conference Paper