%0 Patent %T Driving a loudspeaker diaphragm at nodal positions %+ Canon Research Centre (CANON CRF) %+ Unité de Mécanique (UME) %A Kergourlay, Gérald %A Doaré, Olivier %N GB2492165 %C United Kingdom %8 2012-12-26 %D 2012 %Z Physics [physics]/Mechanics [physics] %Z Physics [physics]/Mechanics [physics]/Acoustics [physics.class-ph] %Z Physics [physics]/Mechanics [physics]/Vibrations [physics.class-ph]Patents %X The loudspeaker driving arrangement comprises: - a vibrating support or diaphragm that is operable to vibrate according to a piston mode and a plurality of break-up modes when excited, - several actuators 16, 18 that are connected to the vibrating support for supplying excitation thereto, wherein the loudspeaker driver comprises N actuators (16, 18) that are located substantially at the N vibrating nodes (A, C) respectively of the (N+1)th order break-up mode. The embodiments describe the situations in which N=2 or 3. %G English %L hal-01136840 %U https://ensta-paris.hal.science/hal-01136840 %~ ENSTA %~ ENSTA_UME