Acoustic device using bending wave modes

Details Acoustic device using bending wave modes Acoustic device using bending wave modes

H - Electricity

04

R

H04R 7/06 (2006.01) H04R 7/04 (2006.01)

Patent

CA 2338690

An acoustic device, e.g. a loudspeaker, has a transducer (38) coupled via a highly perforate member (36) to an acoustically active area (39) that may be in the form of a skin over part of the highly perforate member. The highly perforate member (36) may be a mesh. Bending waves may be excited in the highly perforate member (36) by the transducer (38) and sound emitted from the acoustically active area (39).

L'invention porte sur un dispositif acoustique, par exemple un haut-parleur, muni d'un transducteur (38) relié par un élément fortement perforé (36) à une zone acoustiquement active (39) pouvant avoir la forme d'une peau disposée sur l'élément perforé (36), ce dernier (36) pouvant être maillé. On peut créer des ondes de flexion dans l'élément perforé à l'aide du transducteur (38) et du son émis par la zone acoustiquement active (39).

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